[r14-9478 Regression] FAIL: g++.dg/torture/pr104601.C -Os (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

df483ebd24689a3bebfae2089637a00eca0e5a12 is the first bad commit
commit df483ebd24689a3bebfae2089637a00eca0e5a12
Author: Jonathan Wakely 
Date:   Mon Feb 26 13:17:13 2024 +

libstdc++: Add nodiscard in 

caused

FAIL: g++.dg/torture/pr104601.C   -O0  (test for excess errors)
FAIL: g++.dg/torture/pr104601.C   -O1  (test for excess errors)
FAIL: g++.dg/torture/pr104601.C   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  (test for excess errors)
FAIL: g++.dg/torture/pr104601.C   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  (test for excess errors)
FAIL: g++.dg/torture/pr104601.C   -O2  (test for excess errors)
FAIL: g++.dg/torture/pr104601.C   -O3 -g  (test for excess errors)
FAIL: g++.dg/torture/pr104601.C   -Os  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9478/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=g++.dg/torture/pr104601.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=g++.dg/torture/pr104601.C 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=g++.dg/torture/pr104601.C 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=g++.dg/torture/pr104601.C 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r13-8480 Regression] FAIL: gcc.dg/tree-ssa/andnot-2.c scan-tree-dump-not forwprop3 "_expr" on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a9a425df628ab80374cc6a132d39e470bc78c8bc is the first bad commit
commit a9a425df628ab80374cc6a132d39e470bc78c8bc
Author: Richard Biener 
Date:   Fri Feb 23 16:06:05 2024 +0100

middle-end/114070 - folding breaking VEC_COND expansion

caused

FAIL: gcc.dg/tree-ssa/andnot-2.c scan-tree-dump-not forwprop3 "_expr"

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/gcc-13/releases/gcc-13/r13-8480/usr
 --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/andnot-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/andnot-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9668 Regression] FAIL: gcc.c-torture/execute/pr111151.c -Os execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c4f2c84e8fa369856aee76679590eb613724bfb0 is the first bad commit
commit c4f2c84e8fa369856aee76679590eb613724bfb0
Author: Jakub Jelinek 
Date:   Tue Mar 26 11:21:38 2024 +0100

fold-const: Punt on MULT_EXPR in extract_muldiv MIN/MAX_EXPR case [PR51]

caused

FAIL: gcc.c-torture/execute/pr51.c   -O0  execution test
FAIL: gcc.c-torture/execute/pr51.c   -O1  execution test
FAIL: gcc.c-torture/execute/pr51.c   -O2  execution test
FAIL: gcc.c-torture/execute/pr51.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  execution test
FAIL: gcc.c-torture/execute/pr51.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  execution test
FAIL: gcc.c-torture/execute/pr51.c   -O3 -g  execution test
FAIL: gcc.c-torture/execute/pr51.c   -Os  execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9668/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr51.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr51.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr51.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr51.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9677 Regression] FAIL: gcc.dg/debug/btf/btf-datasec-1.c scan-assembler-times .4byte[\t ][a-e][\t ]+[^\n]*bts_offset 5 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

fa60ac549649655a3f55e69f83d2e97423d3eb5c is the first bad commit
commit fa60ac549649655a3f55e69f83d2e97423d3eb5c
Author: Cupertino Miranda 
Date:   Tue Mar 26 11:59:47 2024 +

btf: Emit labels in DATASEC bts_offset entries.

caused

FAIL: gcc.dg/debug/btf/btf-datasec-1.c scan-assembler-times .4byte[\t ][a-e][\t 
]+[^\n]*bts_offset 5

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9677/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="btf.exp=gcc.dg/debug/btf/btf-datasec-1.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="btf.exp=gcc.dg/debug/btf/btf-datasec-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="btf.exp=gcc.dg/debug/btf/btf-datasec-1.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="btf.exp=gcc.dg/debug/btf/btf-datasec-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9692 Regression] FAIL: gcc.target/i386/pr101950-2.c scan-assembler-times \txor[ql]\t 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

839bc42772ba7af66af3bd16efed4a69511312ae is the first bad commit
commit 839bc42772ba7af66af3bd16efed4a69511312ae
Author: Segher Boessenkool 
Date:   Wed Mar 27 14:09:52 2024 +

combine: Don't combine if I2 does not change

caused

FAIL: gcc.target/i386/pr101950-2.c scan-assembler-times \txor[ql]\t 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9692/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr101950-2.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr101950-2.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9912 Regression] FAIL: gcc.dg/guality/pr54693-2.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects -DPREVENT_OPTIMIZATION line 21 z == 30 - 3 * i on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c7e8a8d814229fd6fc4c16c2452f15dddc613479 is the first bad commit
commit c7e8a8d814229fd6fc4c16c2452f15dddc613479
Author: Richard Biener 
Date:   Thu Apr 11 11:08:07 2024 +0200

tree-optimization/109596 - wrong debug stmt move by copyheader

caused

FAIL: gcc.dg/guality/pr43051-1.c   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  -DPREVENT_OPTIMIZATION  line 34 c == 
&a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  -DPREVENT_OPTIMIZATION  line 39 c == 
&a[0]
FAIL: gcc.dg/guality/pr54693-2.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 21 x == 10 - i
FAIL: gcc.dg/guality/pr54693-2.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 21 y == 20 - 2 * i
FAIL: gcc.dg/guality/pr54693-2.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 21 z == 30 - 3 * i

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9912/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr43051-1.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr43051-1.c --target_board='unix{-m64\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54693-2.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54693-2.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54693-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54693-2.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8768 Regression] FAIL: libgomp.fortran/non-rectangular-loop-1.f90 -O1 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

85094e2aa6dba7908f053046f02dd443e8f65d72 is the first bad commit
commit 85094e2aa6dba7908f053046f02dd443e8f65d72
Author: Tamar Christina 
Date:   Fri Feb 2 23:52:27 2024 +

middle-end: check memory accesses in the destination block [PR113588].

caused

FAIL: libgomp.fortran/non-rectangular-loop-1.f90   -O1  execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8768/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/non-rectangular-loop-1.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/non-rectangular-loop-1.f90 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/non-rectangular-loop-1.f90 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/non-rectangular-loop-1.f90 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8768 Regression] FAIL: libgomp.fortran/non-rectangular-loop-1.f90 -O1 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

85094e2aa6dba7908f053046f02dd443e8f65d72 is the first bad commit
commit 85094e2aa6dba7908f053046f02dd443e8f65d72
Author: Tamar Christina 
Date:   Fri Feb 2 23:52:27 2024 +

middle-end: check memory accesses in the destination block [PR113588].

caused

FAIL: libgomp.fortran/non-rectangular-loop-6.f90   -O1  execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8768/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/non-rectangular-loop-6.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/non-rectangular-loop-6.f90 
--target_board='unix{-m64}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8838 Regression] FAIL: gcc.dg/vect/vect-early-break_110-pr113467.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

194d0956ef5992d4e453bde3eb5772dc077f610c is the first bad commit
commit 194d0956ef5992d4e453bde3eb5772dc077f610c
Author: Tamar Christina 
Date:   Wed Feb 7 10:57:05 2024 +

middle-end: add additional runtime test for [PR113467]

caused

FAIL: gcc.dg/vect/vect-early-break_110-pr113467.c -flto -ffat-lto-objects (test 
for excess errors)
FAIL: gcc.dg/vect/vect-early-break_110-pr113467.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8838/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_110-pr113467.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_110-pr113467.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8925 Regression] FAIL: gcc.dg/torture/pr56689.c -O3 -g (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

1e3f78dbb328a2f2db8def241372cb947d9cb7eb is the first bad commit
commit 1e3f78dbb328a2f2db8def241372cb947d9cb7eb
Author: Richard Biener 
Date:   Mon Feb 12 10:40:42 2024 +0100

tree-optimization/113863 - elide degenerate virtual PHIs when moving ee 
stores

caused

FAIL: gcc.c-torture/compile/920723-1.c   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler 
error: Segmentation fault)
FAIL: gcc.c-torture/compile/920723-1.c   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess 
errors)
FAIL: gcc.c-torture/compile/920723-1.c   -O3 -g  (internal compiler error: 
Segmentation fault)
FAIL: gcc.c-torture/compile/920723-1.c   -O3 -g  (test for excess errors)
FAIL: gcc.dg/torture/pr56689.c   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  (internal compiler error: 
Segmentation fault)
FAIL: gcc.dg/torture/pr56689.c   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gcc.dg/torture/pr56689.c   -O3 -g  (internal compiler error: Segmentation 
fault)
FAIL: gcc.dg/torture/pr56689.c   -O3 -g  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8925/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="compile.exp=gcc.c-torture/compile/920723-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="compile.exp=gcc.c-torture/compile/920723-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/pr56689.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/pr56689.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8998 Regression] FAIL: 26_numerics/random/pr60037-neg.cc -std=gnu++17 (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c9ce332b557bb95987d038d98ea929cdfd1eae1d is the first bad commit
commit c9ce332b557bb95987d038d98ea929cdfd1eae1d
Author: Jonathan Wakely 
Date:   Wed Feb 7 11:31:10 2024 +

libstdc++: Use 128-bit arithmetic for std::linear_congruential_engine 
[PR87744]

caused

FAIL: 26_numerics/random/pr60037-neg.cc  -std=gnu++17  (test for errors, line 
271)
FAIL: 26_numerics/random/pr60037-neg.cc  -std=gnu++17 (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8998/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9028 Regression] FAIL: 26_numerics/random/pr60037-neg.cc -std=gnu++17 (test for errors, line 3350) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

7f3d900684ad989164114f25eb46a33871c6533d is the first bad commit
commit 7f3d900684ad989164114f25eb46a33871c6533d
Author: Jonathan Wakely 
Date:   Wed Feb 7 11:31:10 2024 +

libstdc++: Fix FAIL: 26_numerics/random/pr60037-neg.cc [PR113931]

caused

FAIL: 26_numerics/random/pr60037-neg.cc  -std=gnu++17  (test for errors, line 
3350)
FAIL: 26_numerics/random/pr60037-neg.cc  -std=gnu++17 (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9028/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9138 Regression] FAIL: g++.dg/warn/Wmismatched-new-delete-8.C -std=gnu++20 (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

1076ffda6ce5e6d5fc9577deaf8233e549e5787a is the first bad commit
commit 1076ffda6ce5e6d5fc9577deaf8233e549e5787a
Author: Andrew Pinski 
Date:   Wed Feb 21 20:12:21 2024 -0800

warn-access: Fix handling of unnamed types [PR109804]

caused

FAIL: g++.dg/warn/Wmismatched-new-delete-8.C  -std=gnu++14 (test for excess 
errors)
FAIL: g++.dg/warn/Wmismatched-new-delete-8.C  -std=gnu++17 (test for excess 
errors)
FAIL: g++.dg/warn/Wmismatched-new-delete-8.C  -std=gnu++20 (test for excess 
errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9138/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/warn/Wmismatched-new-delete-8.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/warn/Wmismatched-new-delete-8.C 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9155 Regression] FAIL: gcc.dg/rtl/aarch64/pr113295-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

8a16e06da97f51574cfad17e2cece2e58571305d is the first bad commit
commit 8a16e06da97f51574cfad17e2cece2e58571305d
Author: Richard Sandiford 
Date:   Fri Feb 23 14:12:54 2024 +

aarch64: Add missing early-ra bookkeeping [PR113295]

caused

FAIL: gcc.dg/rtl/aarch64/pr113295-1.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9155/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="rtl.exp=gcc.dg/rtl/aarch64/pr113295-1.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="rtl.exp=gcc.dg/rtl/aarch64/pr113295-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="rtl.exp=gcc.dg/rtl/aarch64/pr113295-1.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="rtl.exp=gcc.dg/rtl/aarch64/pr113295-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9173 Regression] FAIL: gcc.dg/tree-ssa/andnot-2.c scan-tree-dump-not forwprop3 "_expr" on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

af66ad89e8169f44db723813662917cf4cbb78fc is the first bad commit
commit af66ad89e8169f44db723813662917cf4cbb78fc
Author: Richard Biener 
Date:   Fri Feb 23 16:06:05 2024 +0100

middle-end/114070 - folding breaking VEC_COND expansion

caused

FAIL: gcc.dg/tree-ssa/andnot-2.c scan-tree-dump-not forwprop3 "_expr"

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9173/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/andnot-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/andnot-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-7139 Regression] FAIL: gcc.dg/pr15784-1.c scan-tree-dump-times gimple "ABS_EXPR" 0 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

897b95a12b7fe549ec2cb8ef3a3f0e4fbabf9737 is the first bad commit
commit 897b95a12b7fe549ec2cb8ef3a3f0e4fbabf9737
Author: Richard Biener 
Date:   Thu Jan 11 12:02:43 2024 +0100

tree-optimization/113126 - vector extension compare optimization

caused

FAIL: gcc.dg/pr15784-1.c scan-tree-dump-times gimple "ABS_EXPR" 0

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-7139/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr15784-1.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr15784-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr15784-1.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr15784-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-7158 Regression] FAIL: gcc.dg/gomp/bad-array-section-c-3.c at line 14 (test for warnings, line 12) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

b5476e4c881b0d2bfbbfb84ee38d791123acf8e1 is the first bad commit
commit b5476e4c881b0d2bfbbfb84ee38d791123acf8e1
Author: Julian Brown 
Date:   Mon Nov 15 02:23:49 2021 -0800

OpenMP: lvalue parsing for map/to/from clauses (C)

caused

FAIL: gcc.dg/gomp/bad-array-section-c-3.c  at line 14 (test for warnings, line 
12)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-7158/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gcc.dg/gomp/bad-array-section-c-3.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gcc.dg/gomp/bad-array-section-c-3.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-7199 Regression] FAIL: gcc.dg/vect/vect-early-break_100-pr113287.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

d14ef0987de2f6f2dac64f4f0f068b929078a01d is the first bad commit
commit d14ef0987de2f6f2dac64f4f0f068b929078a01d
Author: Tamar Christina 
Date:   Fri Jan 12 15:27:45 2024 +

testsuite: Make bitint early vect test more accurate

caused

FAIL: gcc.dg/vect/vect-early-break_100-pr113287.c -flto -ffat-lto-objects (test 
for excess errors)
FAIL: gcc.dg/vect/vect-early-break_100-pr113287.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-7199/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_100-pr113287.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_100-pr113287.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8206 Regression] FAIL: gfortran.dg/forall_1.f90 -O3 -g (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

0f3880d6ad0e40c4a8b6d94b2c93931cdf42 is the first bad commit
commit 0f3880d6ad0e40c4a8b6d94b2c93931cdf42
Author: Richard Biener 
Date:   Wed Jan 17 13:24:22 2024 +0100

tree-optimization/113374 - early break vect and virtual operands

caused

FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler 
error: Segmentation fault)
FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess 
errors)
FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -g  (internal compiler error: 
Segmentation fault)
FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/forall_1.f90   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  (internal compiler error: in 
add_phi_arg, at tree-phinodes.cc:366)
FAIL: gfortran.dg/forall_1.f90   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/forall_1.f90   -O3 -g  (internal compiler error: in 
add_phi_arg, at tree-phinodes.cc:366)
FAIL: gfortran.dg/forall_1.f90   -O3 -g  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8206/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/20150611-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/20150611-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/forall_1.f90 --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/forall_1.f90 --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8346 Regression] FAIL: gcc.dg/guality/pr54796.c -Os -DPREVENT_OPTIMIZATION line 17 c == 5 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a98d5130a6dcff2ed4db371e500550134777b8cf is the first bad commit
commit a98d5130a6dcff2ed4db371e500550134777b8cf
Author: Richard Biener 
Date:   Mon Jan 15 12:55:20 2024 +0100

rtl-optimization/113255 - base_alias_check vs. pointer difference

caused

FAIL: gcc.dg/guality/pr54796.c   -O1  -DPREVENT_OPTIMIZATION  line 17 a == 5
FAIL: gcc.dg/guality/pr54796.c   -O1  -DPREVENT_OPTIMIZATION  line 17 b == 6
FAIL: gcc.dg/guality/pr54796.c   -O1  -DPREVENT_OPTIMIZATION  line 17 c == 5
FAIL: gcc.dg/guality/pr54796.c   -O2  -DPREVENT_OPTIMIZATION  line 17 a == 5
FAIL: gcc.dg/guality/pr54796.c   -O2  -DPREVENT_OPTIMIZATION  line 17 b == 6
FAIL: gcc.dg/guality/pr54796.c   -O2  -DPREVENT_OPTIMIZATION  line 17 c == 5
FAIL: gcc.dg/guality/pr54796.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  -DPREVENT_OPTIMIZATION line 17 a == 5
FAIL: gcc.dg/guality/pr54796.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  -DPREVENT_OPTIMIZATION line 17 b == 6
FAIL: gcc.dg/guality/pr54796.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  -DPREVENT_OPTIMIZATION line 17 c == 5
FAIL: gcc.dg/guality/pr54796.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 17 a == 5
FAIL: gcc.dg/guality/pr54796.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 17 b == 6
FAIL: gcc.dg/guality/pr54796.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 17 c == 5
FAIL: gcc.dg/guality/pr54796.c  -Og -DPREVENT_OPTIMIZATION  line 17 a == 5
FAIL: gcc.dg/guality/pr54796.c  -Og -DPREVENT_OPTIMIZATION  line 17 b == 6
FAIL: gcc.dg/guality/pr54796.c  -Og -DPREVENT_OPTIMIZATION  line 17 c == 5
FAIL: gcc.dg/guality/pr54796.c   -Os  -DPREVENT_OPTIMIZATION  line 17 a == 5
FAIL: gcc.dg/guality/pr54796.c   -Os  -DPREVENT_OPTIMIZATION  line 17 b == 6
FAIL: gcc.dg/guality/pr54796.c   -Os  -DPREVENT_OPTIMIZATION  line 17 c == 5

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8346/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54796.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54796.c --target_board='unix{-m32\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-8346 Regression] FAIL: gcc.dg/guality/pr54796.c -Os -DPREVENT_OPTIMIZATION line 17 c == 5 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a98d5130a6dcff2ed4db371e500550134777b8cf is the first bad commit
commit a98d5130a6dcff2ed4db371e500550134777b8cf
Author: Richard Biener 
Date:   Mon Jan 15 12:55:20 2024 +0100

rtl-optimization/113255 - base_alias_check vs. pointer difference

caused

FAIL: gcc.dg/torture/pr113255.c   -O0  (test for excess errors)
FAIL: gcc.dg/torture/pr113255.c   -O1  (test for excess errors)
FAIL: gcc.dg/torture/pr113255.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  (test for excess errors)
FAIL: gcc.dg/torture/pr113255.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.dg/torture/pr113255.c   -O2  (test for excess errors)
FAIL: gcc.dg/torture/pr113255.c   -O3 -g  (test for excess errors)
FAIL: gcc.dg/torture/pr113255.c   -Os  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8346/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/pr113255.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/pr113255.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6468 Regression] FAIL: std/time/year/io.cc -std=gnu++26 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a01462ae8bafa86e7df47a252917ba6899d587cf is the first bad commit
commit a01462ae8bafa86e7df47a252917ba6899d587cf
Author: Jonathan Wakely 
Date:   Mon Dec 11 15:33:59 2023 +

libstdc++: Fix std::format output of %C for negative years

caused

FAIL: std/time/year/io.cc  -std=gnu++20 execution test
FAIL: std/time/year/io.cc  -std=gnu++26 execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6468/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6470 Regression] FAIL: g++.dg/pr112822.C -std=gnu++98 (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

788e0d48ec639d44294434f4f20ae94023c3759d is the first bad commit
commit 788e0d48ec639d44294434f4f20ae94023c3759d
Author: Peter Bergner 
Date:   Tue Dec 12 16:46:16 2023 -0600

testsuite: Add testcase for already fixed PR [PR112822]

caused

FAIL: g++.dg/pr112822.C  -std=gnu++14 (test for excess errors)
FAIL: g++.dg/pr112822.C  -std=gnu++98 (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6470/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/pr112822.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/pr112822.C 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/pr112822.C 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/pr112822.C 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6515 Regression] FAIL: c-c++-common/gomp/target-enter-data-1.c -std=c++98 scan-tree-dump-times gimple "map\\(struct:\\*\\(f->bars \\+ \\(sizetype\\) \\(\\([^\\)]+\\) n \\* 16\\)\\) \\[len: 1\\]

[haochen.jiang]

On Linux/x86_64,

5fdb150cd4bf8f2da335e3f5c3a17aafcbc66dbe is the first bad commit
commit 5fdb150cd4bf8f2da335e3f5c3a17aafcbc66dbe
Author: Julian Brown 
Date:   Mon Aug 14 12:41:56 2023 +

OpenMP/OpenACC: Rework clause expansion and nested struct handling

caused

FAIL: c-c++-common/gomp/target-enter-data-1.c scan-tree-dump-times gimple 
"map\\(struct:\\*\\(f->bars \\+ \\(sizetype\\) \\(\\([^\\)]+\\) n \\* 16\\)\\) 
\\[len: 1\\]\\) map\\(alloc:[a-z0-9\\._]+->vectors \\[len: 0\\]\\) 
map\\(to:\\*_[0-9]+ \\[len: _[0-9]+\\]\\) map\\(attach:[a-z0-9\\._]+->vectors 
\\[bias: [^\\]]+\\]\\)" 2
FAIL: c-c++-common/gomp/target-enter-data-1.c  -std=c++14  scan-tree-dump-times 
gimple "map\\(struct:\\*\\(f->bars \\+ \\(sizetype\\) \\(\\([^\\)]+\\) n \\* 
16\\)\\) \\[len: 1\\]\\) map\\(alloc:[a-z0-9\\._]+->vectors \\[len: 0\\]\\) 
map\\(to:\\*_[0-9]+ \\[len: _[0-9]+\\]\\) map\\(attach:[a-z0-9\\._]+->vectors 
\\[bias: [^\\]]+\\]\\)" 2
FAIL: c-c++-common/gomp/target-enter-data-1.c  -std=c++17  scan-tree-dump-times 
gimple "map\\(struct:\\*\\(f->bars \\+ \\(sizetype\\) \\(\\([^\\)]+\\) n \\* 
16\\)\\) \\[len: 1\\]\\) map\\(alloc:[a-z0-9\\._]+->vectors \\[len: 0\\]\\) 
map\\(to:\\*_[0-9]+ \\[len: _[0-9]+\\]\\) map\\(attach:[a-z0-9\\._]+->vectors 
\\[bias: [^\\]]+\\]\\)" 2
FAIL: c-c++-common/gomp/target-enter-data-1.c  -std=c++20  scan-tree-dump-times 
gimple "map\\(struct:\\*\\(f->bars \\+ \\(sizetype\\) \\(\\([^\\)]+\\) n \\* 
16\\)\\) \\[len: 1\\]\\) map\\(alloc:[a-z0-9\\._]+->vectors \\[len: 0\\]\\) 
map\\(to:\\*_[0-9]+ \\[len: _[0-9]+\\]\\) map\\(attach:[a-z0-9\\._]+->vectors 
\\[bias: [^\\]]+\\]\\)" 2
FAIL: c-c++-common/gomp/target-enter-data-1.c  -std=c++98  scan-tree-dump-times 
gimple "map\\(struct:\\*\\(f->bars \\+ \\(sizetype\\) \\(\\([^\\)]+\\) n \\* 
16\\)\\) \\[len: 1\\]\\) map\\(alloc:[a-z0-9\\._]+->vectors \\[len: 0\\]\\) 
map\\(to:\\*_[0-9]+ \\[len: _[0-9]+\\]\\) map\\(attach:[a-z0-9\\._]+->vectors 
\\[bias: [^\\]]+\\]\\)" 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6515/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=c-c++-common/gomp/target-enter-data-1.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=c-c++-common/gomp/target-enter-data-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6559 Regression] FAIL: gcc.dg/guality/pr58791-4.c -Os -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652 is the first bad commit
commit 8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652
Author: Di Zhao 
Date:   Fri Dec 15 03:22:32 2023 +0800

Consider fully pipelined FMA in get_reassociation_width

caused

FAIL: gcc.dg/guality/pr58791-4.c   -O2  -DPREVENT_OPTIMIZATION  line 
pr58791-4.c:32 i2 == 487
FAIL: gcc.dg/guality/pr58791-4.c   -O2  -DPREVENT_OPTIMIZATION  line 
pr58791-4.c:32 i == 486
FAIL: gcc.dg/guality/pr58791-4.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i2 == 487
FAIL: gcc.dg/guality/pr58791-4.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486
FAIL: gcc.dg/guality/pr58791-4.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i2 == 487
FAIL: gcc.dg/guality/pr58791-4.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486
FAIL: gcc.dg/guality/pr58791-4.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 
pr58791-4.c:32 i2 == 487
FAIL: gcc.dg/guality/pr58791-4.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 
pr58791-4.c:32 i == 486
FAIL: gcc.dg/guality/pr58791-4.c   -Os  -DPREVENT_OPTIMIZATION  line 
pr58791-4.c:32 i2 == 487
FAIL: gcc.dg/guality/pr58791-4.c   -Os  -DPREVENT_OPTIMIZATION  line 
pr58791-4.c:32 i == 486

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6559/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr58791-4.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6559 Regression] FAIL: gcc.dg/guality/pr58791-4.c -Os -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652 is the first bad commit
commit 8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652
Author: Di Zhao 
Date:   Fri Dec 15 03:22:32 2023 +0800

Consider fully pipelined FMA in get_reassociation_width

caused

FAIL: gcc.dg/pr110279-2.c scan-tree-dump-not reassoc2 "was chosen for 
reassociation"
FAIL: gcc.dg/pr110279-2.c scan-tree-dump-times optimized "\\.FMA " 3

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6559/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr110279-2.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr110279-2.c 
--target_board='unix{-m64}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6770 Regression] FAIL: gcc.dg/gnu23-tag-4.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

23fee88f84873b0b8b41c8e5a9b229d533fb4022 is the first bad commit
commit 23fee88f84873b0b8b41c8e5a9b229d533fb4022
Author: Martin Uecker 
Date:   Tue Aug 15 14:58:32 2023 +0200

c23: tag compatibility rules for struct and unions

caused

FAIL: gcc.dg/gnu23-tag-4.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6770/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/gnu23-tag-4.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/gnu23-tag-4.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6796 Regression] FAIL: g++.dg/abi/mangle-regparm1a.C -std=gnu++98 (test for warnings, line 6) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

2fa122cae50cd87c1262c4ec18a783ee9bbbdaaa is the first bad commit
commit 2fa122cae50cd87c1262c4ec18a783ee9bbbdaaa
Author: Jason Merrill 
Date:   Thu Dec 21 16:16:37 2023 -0500

testsuite: suppress mangling compatibility aliases

caused

FAIL: g++.dg/abi/mangle-regparm1a.C  -std=gnu++14  (test for warnings, line 6)
FAIL: g++.dg/abi/mangle-regparm1a.C  -std=gnu++17  (test for warnings, line 6)
FAIL: g++.dg/abi/mangle-regparm1a.C  -std=gnu++20  (test for warnings, line 6)
FAIL: g++.dg/abi/mangle-regparm1a.C  -std=gnu++98  (test for warnings, line 6)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6796/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/abi/mangle-regparm1a.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/abi/mangle-regparm1a.C --target_board='unix{-m32\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6822 Regression] FAIL: 25_algorithms/partition_point/constrained.cc -std=gnu++26 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

01f4251b8775c832a92d55e2df57c9ac72eaceef is the first bad commit
commit 01f4251b8775c832a92d55e2df57c9ac72eaceef
Author: Tamar Christina 
Date:   Sun Dec 24 19:18:12 2023 +

middle-end: Support vectorization of loops with multiple exits.

caused

FAIL: 25_algorithms/partition_point/constrained.cc  -std=gnu++20 execution test
FAIL: 25_algorithms/partition_point/constrained.cc  -std=gnu++26 execution test
FAIL: gcc.dg/tree-ssa/gen-vect-26.c scan-tree-dump-times vect "Alignment of 
access forced using peeling" 1
FAIL: gcc.dg/vect/slp-mask-store-1.c -flto -ffat-lto-objects  
scan-tree-dump-times vect "LOOP VECTORIZED" 1
FAIL: gcc.dg/vect/slp-mask-store-1.c scan-tree-dump-times vect "LOOP 
VECTORIZED" 1
FAIL: gcc.target/i386/vect-double-2.c scan-tree-dump-times vect "Vectorized 
loops: 1" 1
FAIL: gcc.target/i386/xorsign.c scan-assembler-not [ \t]or
FAIL: gcc.target/i386/xorsign.c scan-tree-dump-times vect "vectorized 2 loops" 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6822/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=25_algorithms/partition_point/constrained.cc 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/gen-vect-26.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/gen-vect-26.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-mask-store-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-mask-store-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-double-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-double-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/xorsign.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/xorsign.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6822 Regression] FAIL: 25_algorithms/partition_point/constrained.cc -std=gnu++26 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

01f4251b8775c832a92d55e2df57c9ac72eaceef is the first bad commit
commit 01f4251b8775c832a92d55e2df57c9ac72eaceef
Author: Tamar Christina 
Date:   Sun Dec 24 19:18:12 2023 +

middle-end: Support vectorization of loops with multiple exits.

caused

FAIL: gcc.target/i386/sse4_1-stv-1.c scan-assembler-not pxor

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6822/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/sse4_1-stv-1.c 
--target_board='unix{-m32}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-7003 Regression] FAIL: gfortran.dg/power_8.f90 -O3 -g execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

b3cc5a1efead520bc977b4ba51f1328d01b3e516 is the first bad commit
commit b3cc5a1efead520bc977b4ba51f1328d01b3e516
Author: Richard Biener 
Date:   Fri Dec 15 10:32:29 2023 +0100

tree-optimization/113026 - avoid vector epilog in more cases

caused

FAIL: gcc.c-torture/execute/950612-1.c   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gcc.c-torture/execute/950612-1.c   -O3 -g  execution test
FAIL: gcc.c-torture/execute/builtin-bitops-1.c   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gcc.c-torture/execute/builtin-bitops-1.c   -O3 -g  execution test
FAIL: gcc.dg/vect/vect-early-break_74.c execution test
FAIL: gcc.dg/vect/vect-early-break_74.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-early-break_78.c execution test
FAIL: gcc.dg/vect/vect-early-break_78.c -flto -ffat-lto-objects execution test
FAIL: gfortran.dg/power_8.f90   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/power_8.f90   -O3 -g  execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-7003/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/950612-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/950612-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/builtin-bitops-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/builtin-bitops-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_74.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_74.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_78.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_78.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/power_8.f90 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/power_8.f90 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-7033 Regression] FAIL: g++.dg/gomp/bad-array-section-4.C -std=c++98 at line 37 (test for warnings, line 35) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

1413af02d62182bc1e19698aaa4dae406f8f13bf is the first bad commit
commit 1413af02d62182bc1e19698aaa4dae406f8f13bf
Author: Julian Brown 
Date:   Mon Sep 12 17:11:29 2022 +

OpenMP: lvalue parsing for map/to/from clauses (C++)

caused

FAIL: g++.dg/gomp/array-section-1.C  -std=c++14  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-1.C  -std=c++17  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-1.C  -std=c++20  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-1.C  -std=c++98  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++14  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR 
\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: 
\\(long int\\) &arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++14  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++17  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR 
\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: 
\\(long int\\) &arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++17  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++20  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR 
\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: 
\\(long int\\) &arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++20  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++98  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR 
\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: 
\\(long int\\) &arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++98  scan-tree-dump original 
"map\\(tofrom:arr1\\[SAVE_EXPR \\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) 
map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) 
&arr1\\[SAVE_EXPR \\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++14  at line 37 (test for 
warnings, line 35)
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++17  at line 37 (test for 
warnings, line 35)
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++20  at line 37 (test for 
warnings, line 35)
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++98  at line 37 (test for 
warnings, line 35)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-7033/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=g++.dg/gomp/array-section-1.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=g++.dg/gomp/array-section-1.C --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=g++.dg/gomp/array-section-2.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=g++.dg/gomp/array-section-2.C --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=g++.dg/gomp/bad-array-section-4.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=g++.dg/gomp/bad-array-section-4.C 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to th

[r14-6114 Regression] FAIL: gcc.dg/tree-ssa/ssa-sink-16.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

de0ab339a795352c843f6e9b2dfce222f26588de is the first bad commit
commit de0ab339a795352c843f6e9b2dfce222f26588de
Author: Richard Biener 
Date:   Mon Dec 4 10:46:11 2023 +0100

tree-optimization/112827 - corrupt SCEV cache during SCCP

caused

FAIL: gcc.dg/tree-ssa/ssa-sink-16.c (internal compiler error: verify_gimple 
failed)
FAIL: gcc.dg/tree-ssa/ssa-sink-16.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6114/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-6412 Regression] FAIL: libgomp.fortran/allocators-5.f90 -O (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

2505a8b41d3b74a545755a278f3750a29c1340b6 is the first bad commit
commit 2505a8b41d3b74a545755a278f3750a29c1340b6
Author: Tobias Burnus 
Date:   Mon Dec 11 15:08:07 2023 +0100

OpenMP: Minor '!$omp allocators' cleanup

caused

FAIL: gfortran.dg/gomp/allocate-5.f90   -O  (internal compiler error: tree 
check: expected class 'type', have 'declaration' (function_decl) in 
gfc_omp_call_is_alloc, at fortran/trans-openmp.cc:8386)
FAIL: gfortran.dg/gomp/allocate-5.f90   -O  (test for excess errors)
FAIL: libgomp.fortran/allocators-1.f90   -O  (internal compiler error: tree 
check: expected class 'type', have 'declaration' (function_decl) in 
gfc_omp_call_is_alloc, at fortran/trans-openmp.cc:8386)
FAIL: libgomp.fortran/allocators-1.f90   -O   scan-tree-dump-times original 
"__builtin_GOMP_free \\(sss, 0B\\);" 2
FAIL: libgomp.fortran/allocators-1.f90   -O   scan-tree-dump-times original 
"GOMP_add_alloc \\(sss\\);" 1
FAIL: libgomp.fortran/allocators-1.f90   -O   scan-tree-dump-times original "if 
\\(GOMP_is_alloc \\(sss\\)\\)" 2
FAIL: libgomp.fortran/allocators-1.f90   -O   scan-tree-dump-times original 
"sss = \\(integer\\(kind=4\\) \\*\\) __builtin_GOMP_alloc \\(4, 4, 
D\\.[0-9]+\\);" 1
FAIL: libgomp.fortran/allocators-1.f90   -O  (test for excess errors)
FAIL: libgomp.fortran/allocators-2.f90   -O  (internal compiler error: tree 
check: expected class 'type', have 'declaration' (function_decl) in 
gfc_omp_call_is_alloc, at fortran/trans-openmp.cc:8386)
FAIL: libgomp.fortran/allocators-2.f90   -O  (test for excess errors)
FAIL: libgomp.fortran/allocators-3.f90   -O  (internal compiler error: tree 
check: expected class 'type', have 'declaration' (function_decl) in 
gfc_omp_call_is_alloc, at fortran/trans-openmp.cc:8386)
FAIL: libgomp.fortran/allocators-3.f90   -O  (test for excess errors)
FAIL: libgomp.fortran/allocators-4.f90   -O  (internal compiler error: tree 
check: expected class 'type', have 'declaration' (function_decl) in 
gfc_omp_call_is_alloc, at fortran/trans-openmp.cc:8386)
FAIL: libgomp.fortran/allocators-4.f90   -O  (test for excess errors)
FAIL: libgomp.fortran/allocators-5.f90   -O  (internal compiler error: tree 
check: expected class 'type', have 'declaration' (function_decl) in 
gfc_omp_call_is_alloc, at fortran/trans-openmp.cc:8386)
FAIL: libgomp.fortran/allocators-5.f90   -O  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6412/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/allocate-5.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/allocate-5.f90 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/allocate-5.f90 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/allocate-5.f90 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-1.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-1.f90 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-1.f90 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-1.f90 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-2.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-2.f90 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-2.f90 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-2.f90 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-3.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-3.f90 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocators-3.f90 
--target_board='unix{-m

[r14-6420 Regression] FAIL: gcc.target/i386/pr110790-2.c scan-assembler-times shrq 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

85c5efcffed19ca6160eeecc2d4faebd9fee63aa is the first bad commit
commit 85c5efcffed19ca6160eeecc2d4faebd9fee63aa
Author: Andrew Pinski 
Date:   Sat Nov 11 15:54:10 2023 -0800

MATCH: (convert)(zero_one !=/== 0/1) for outer type and zero_one type are 
the same

caused

FAIL: gcc.target/i386/pr110790-2.c scan-assembler-times shrq 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6420/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr110790-2.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5513 Regression] FAIL: gcc.target/i386/avx-storeu2-m128i-1.c scan-assembler \tvextract[if]128\t on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

9251db0dabc8e75c31b49a5b589124e9a2bc8299 is the first bad commit
commit 9251db0dabc8e75c31b49a5b589124e9a2bc8299
Author: Hongyu Wang 
Date:   Thu Nov 9 13:11:41 2023 +0800

[i386] APX: Fix EGPR usage in several patterns.

caused

FAIL: gcc.target/i386/avx256-unaligned-store-1.c scan-assembler vextractf128
FAIL: gcc.target/i386/avx-storeu2-m128-1.c scan-assembler \tvextractf128\t
FAIL: gcc.target/i386/avx-storeu2-m128i-1.c scan-assembler \tvextract[if]128\t

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5513/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx256-unaligned-store-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx256-unaligned-store-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-storeu2-m128-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-storeu2-m128-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-storeu2-m128i-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-storeu2-m128i-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5284 Regression] FAIL: gcc.target/i386/fnabs.c scan-assembler-times \tv?orp[sd][ \t] 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

3f176e1adc6bc9cc2c21222d776b51d9f43cb66b is the first bad commit
commit 3f176e1adc6bc9cc2c21222d776b51d9f43cb66b
Author: Tamar Christina 
Date:   Thu Nov 9 13:59:39 2023 +

middle-end: optimize fneg (fabs (x)) to copysign (x, -1) [PR109154]

caused

FAIL: gcc.target/i386/fnabs.c scan-assembler-times \tv?orp[sd][ \t] 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5284/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/fnabs.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/fnabs.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5666 Regression] FAIL: gcc.dg/tree-prof/time-profiler-3.c scan-ipa-dump-times profile "Read tp_first_run: 2" 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

41aacdea55c5d795a7aa195357d966645845d00e is the first bad commit
commit 41aacdea55c5d795a7aa195357d966645845d00e
Author: Sebastian Huber 
Date:   Mon Nov 20 15:26:38 2023 +0100

gcov: Fix integer types in gen_counter_update()

caused

FAIL: gcc.dg/tree-prof/time-profiler-3.c scan-ipa-dump-times profile "Read 
tp_first_run: 0" 1
FAIL: gcc.dg/tree-prof/time-profiler-3.c scan-ipa-dump-times profile "Read 
tp_first_run: 2" 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5666/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-prof.exp=gcc.dg/tree-prof/time-profiler-3.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-prof.exp=gcc.dg/tree-prof/time-profiler-3.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-prof.exp=gcc.dg/tree-prof/time-profiler-3.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-prof.exp=gcc.dg/tree-prof/time-profiler-3.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5355 Regression] FAIL: ext/pb_ds/example/store_hash.cc -std=gnu++17 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

3cd3a09b3f91a1d023cb180763d40598d6bb274b is the first bad commit
commit 3cd3a09b3f91a1d023cb180763d40598d6bb274b
Author: Richard Sandiford 
Date:   Sat Nov 11 17:28:55 2023 +

mode-switching: Add note problem

caused

FAIL: ext/pb_ds/example/store_hash.cc  -std=gnu++17 execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5355/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=ext/pb_ds/example/store_hash.cc 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5579 Regression] FAIL: gcc.dg/tree-ssa/ssa-lim-11.c scan-tree-dump-times lim2 "Executing store motion of __gcov0.access_buf\\[[12]\\] from loop 1" 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

20a3c74c347429c109bc7002285b735be83f6a0b is the first bad commit
commit 20a3c74c347429c109bc7002285b735be83f6a0b
Author: Sebastian Huber 
Date:   Tue Nov 14 21:36:51 2023 +0100

gcov: Improve -fprofile-update=atomic

caused

FAIL: gcc.dg/tree-ssa/ssa-lim-11.c scan-tree-dump-times lim2 "Executing store 
motion of __gcov0.access_buf\\[[12]\\] from loop 1" 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5579/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5115 Regression] FAIL: gcc.dg/Wnonnull-4.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

6e9ee44d96e5bda8808dd9d8ccf58d2525383f6b is the first bad commit
commit 6e9ee44d96e5bda8808dd9d8ccf58d2525383f6b
Author: Martin Uecker 
Date:   Thu Apr 13 19:35:15 2023 +0200

Reduce false positives for -Wnonnull for VLA parameters [PR98541]

caused

FAIL: gcc.dg/Wnonnull-4.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5115/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/Wnonnull-4.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/Wnonnull-4.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5759 Regression] FAIL: gcc.dg/Wstringop-overflow-17.c (test for warnings, line 9) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

6bf66276e3e41d5d92f7b7260e98b6a111653805 is the first bad commit
commit 6bf66276e3e41d5d92f7b7260e98b6a111653805
Author: Richard Biener 
Date:   Wed Nov 22 11:10:41 2023 +0100

tree-optimization/112344 - wrong final value replacement

caused

FAIL: gcc.dg/vect/no-scevccp-noreassoc-outer-4.c scan-tree-dump-times vect 
"OUTER LOOP VECTORIZED." 1
FAIL: gcc.dg/Wstringop-overflow-17.c  (test for warnings, line 16)
FAIL: gcc.dg/Wstringop-overflow-17.c  (test for warnings, line 9)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5759/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/no-scevccp-noreassoc-outer-4.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/no-scevccp-noreassoc-outer-4.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/no-scevccp-noreassoc-outer-4.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/no-scevccp-noreassoc-outer-4.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gcc.dg/Wstringop-overflow-17.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gcc.dg/Wstringop-overflow-17.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gcc.dg/Wstringop-overflow-17.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gcc.dg/Wstringop-overflow-17.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5679 Regression] FAIL: g++.dg/opt/pr110879.C -std=gnu++98 scan-tree-dump-not optimized "=\\s*\\S*res_(?!\\S*_M_end_of_storage;)" on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

1d82fc2e6824bf83159389729c31a942f7b91b04 is the first bad commit
commit 1d82fc2e6824bf83159389729c31a942f7b91b04
Author: Jan Hubicka 
Date:   Tue Nov 21 15:17:16 2023 +0100

optimize std::vector::push_back

caused

FAIL: g++.dg/opt/pr110879.C  -std=gnu++98  scan-tree-dump-not optimized 
"=\\s*\\S*res_(?!\\S*_M_end_of_storage;)"

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5679/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/opt/pr110879.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/opt/pr110879.C 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/opt/pr110879.C 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/opt/pr110879.C 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5113 Regression] FAIL: gcc.dg/vect/vect-simd-clone-20.c scan-tree-dump-times vect "[\\n\\r] [^\\n]* = foo\\.simdclone" 4 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

aed00696a01ac065e9ed327434ec29d1cf50179e is the first bad commit
commit aed00696a01ac065e9ed327434ec29d1cf50179e
Author: Andre Vieira 
Date:   Fri Nov 3 19:09:07 2023 +

vect: allow using inbranch simdclones for masked loops

caused

FAIL: gcc.dg/vect/vect-simd-clone-20.c scan-tree-dump-times vect "[\\n\\r] 
[^\\n]* = foo\\.simdclone" 4

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5113/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-simd-clone-20.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-simd-clone-20.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5578 Regression] FAIL: gfortran.dg/gomp/pr27573.f90 -O (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a350a74d6113e3a84943266eb691275951c109d9 is the first bad commit
commit a350a74d6113e3a84943266eb691275951c109d9
Author: Sebastian Huber 
Date:   Sat Oct 21 15:52:15 2023 +0200

gcov: Add gen_counter_update()

caused

FAIL: gcc.dg/gomp/pr27573.c (internal compiler error: verify_gimple failed)
FAIL: gcc.dg/gomp/pr27573.c (test for excess errors)
FAIL: gcc.dg/profile-update-warning.c (internal compiler error: verify_gimple 
failed)
FAIL: gcc.dg/profile-update-warning.c (test for excess errors)
FAIL: gfortran.dg/gomp/pr27573.f90   -O  (internal compiler error: 
verify_gimple failed)
FAIL: gfortran.dg/gomp/pr27573.f90   -O  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5578/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gcc.dg/gomp/pr27573.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gcc.dg/gomp/pr27573.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gcc.dg/gomp/pr27573.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gcc.dg/gomp/pr27573.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gcc.dg/profile-update-warning.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gcc.dg/profile-update-warning.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/pr27573.f90 --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/pr27573.f90 --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/pr27573.f90 --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/pr27573.f90 --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5385 Regression] FAIL: std/time/format.cc -std=gnu++26 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

0a140730c970870a5125beb1114f6c01679a040e is the first bad commit
commit 0a140730c970870a5125beb1114f6c01679a040e
Author: Roger Sayle 
Date:   Mon Nov 13 09:05:16 2023 +

i386: Improve reg pressure of double word right shift then truncate.

caused

FAIL: 20_util/duration/io.cc  -std=gnu++20 execution test
FAIL: 20_util/duration/io.cc  -std=gnu++26 execution test
FAIL: 20_util/to_chars/1.cc  -std=gnu++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++98 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c  -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c  -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c  -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c  -std=c++98 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c  -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c  -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c  -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c  -std=c++98 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c  -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c  -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c  -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c  -std=c++98 execution test
FAIL: gcc.c-torture/execute/pr60822.c   -O1  execution test
FAIL: gcc.c-torture/execute/pr60822.c   -O2  execution test
FAIL: gcc.c-torture/execute/pr60822.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  execution test
FAIL: gcc.c-torture/execute/pr60822.c   -O3 -g  execution test
FAIL: gcc.c-torture/execute/pr60822.c   -Os  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c   -O0  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c   -O1  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c   -O2  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c   -O2 -flto 
-fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c   -O2 -flto 
-fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c   -O3 -g  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c   -Os  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c   -O0  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c   -O1  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c   -O2  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c   -O2 -flto 
-fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c   -O2 -flto 
-fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c   -O3 -g  execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c   -Os  execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c   -O0  execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c   -O1  execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c   -O2  execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c   -O2 -flto 
-fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c   -O2 -flto 
-fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c   -O3 -g  execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c   -Os  execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c   -O0  execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c   -O1  execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c   -O2  execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c   -O3 -g  execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c   -Os  execution test
FAIL: std/time/exceptions.cc  -std=gnu++20 execution test
FAIL: std/time/exceptions.cc  -std=gnu++26 execution test
FAIL: std/time/format.cc  -std=gnu++20 execution test
FAIL: std/time/format.cc  -std=gnu++26 execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5385/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran 

[r14-5456 Regression] FAIL: gcc.c-torture/execute/pr82524.c -Os (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

b42a09b258c3ed8d1368e0ef0948034dcf0f8ac9 is the first bad commit
commit b42a09b258c3ed8d1368e0ef0948034dcf0f8ac9
Author: Uros Bizjak 
Date:   Tue Nov 14 18:34:43 2023 +0100

i386: Generate strict_low_part QImode insn with high input register

caused

FAIL: gcc.c-torture/execute/pr82524.c   -O1  (internal compiler error: in 
extract_insn, at recog.cc:2804)
FAIL: gcc.c-torture/execute/pr82524.c   -O1  (test for excess errors)
FAIL: gcc.c-torture/execute/pr82524.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  (internal compiler error: in extract_insn, at 
recog.cc:2804)
FAIL: gcc.c-torture/execute/pr82524.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  (test for excess errors)
FAIL: gcc.c-torture/execute/pr82524.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  (internal compiler error: in extract_insn, at 
recog.cc:2804)
FAIL: gcc.c-torture/execute/pr82524.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.c-torture/execute/pr82524.c   -O2  (internal compiler error: in 
extract_insn, at recog.cc:2804)
FAIL: gcc.c-torture/execute/pr82524.c   -O2  (test for excess errors)
FAIL: gcc.c-torture/execute/pr82524.c   -O3 -g  (internal compiler error: in 
extract_insn, at recog.cc:2804)
FAIL: gcc.c-torture/execute/pr82524.c   -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/execute/pr82524.c   -Os  (internal compiler error: in 
extract_insn, at recog.cc:2804)
FAIL: gcc.c-torture/execute/pr82524.c   -Os  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5456/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr82524.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr82524.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr82524.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr82524.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5628 Regression] FAIL: gcc.dg/vla-1.c scan-tree-dump-times optimized " s=> i" 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

53ba8d669550d3a1f809048428b97ca607f95cf5 is the first bad commit
commit 53ba8d669550d3a1f809048428b97ca607f95cf5
Author: Jan Hubicka 
Date:   Mon Nov 20 19:35:53 2023 +0100

inter-procedural value range propagation

caused

FAIL: gcc.dg/guality/ipa-sra-1.c   -O2  -DPREVENT_OPTIMIZATION  line 27 k == 3
FAIL: gcc.dg/guality/ipa-sra-1.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  -DPREVENT_OPTIMIZATION line 27 k == 3
FAIL: gcc.dg/guality/ipa-sra-1.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 27 k == 3
FAIL: gcc.dg/guality/ipa-sra-1.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 27 k == 
3
FAIL: gcc.dg/guality/ipa-sra-1.c   -Os  -DPREVENT_OPTIMIZATION  line 27 k == 3
FAIL: gcc.dg/guality/vla-1.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 24 i == 5
FAIL: gcc.dg/guality/vla-1.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 24 sizeof (a) == 17 * sizeof 
(short)
FAIL: gcc.dg/vla-1.c scan-tree-dump-times optimized " s=> i" 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5628/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/ipa-sra-1.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/ipa-sra-1.c --target_board='unix{-m64\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/vla-1.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/vla-1.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/vla-1.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/vla-1.c --target_board='unix{-m64\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/vla-1.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/vla-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/vla-1.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/vla-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-5930 Regression] FAIL: gcc.c-torture/compile/libcall-2.c -Os (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

f31a019d1161ec78846473da743aedf49cca8c27 is the first bad commit
commit f31a019d1161ec78846473da743aedf49cca8c27
Author: Jose E. Marchesi 
Date:   Fri Nov 24 06:30:28 2023 +0100

Emit funcall external declarations only if actually used.

caused

FAIL: gcc.c-torture/compile/libcall-2.c   -O0  (test for excess errors)
FAIL: gcc.c-torture/compile/libcall-2.c   -O1  (test for excess errors)
FAIL: gcc.c-torture/compile/libcall-2.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  (test for excess errors)
FAIL: gcc.c-torture/compile/libcall-2.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.c-torture/compile/libcall-2.c   -O2  (test for excess errors)
FAIL: gcc.c-torture/compile/libcall-2.c   -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/compile/libcall-2.c   -Os  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5930/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="compile.exp=gcc.c-torture/compile/libcall-2.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="compile.exp=gcc.c-torture/compile/libcall-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1758 Regression] FAIL: g++.dg/cpp2a/spaceship-narrowing1.C -std=c++20 (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

52d71b6b1f0f465a6cf064f61b22fc99453ec132 is the first bad commit
commit 52d71b6b1f0f465a6cf064f61b22fc99453ec132
Author: Marek Polacek 
Date:   Fri Jun 28 17:51:19 2024 -0400

c++: DR2627, Bit-fields and narrowing conversions [PR94058]

caused

FAIL: g++.dg/cpp2a/spaceship-narrowing1.C  -std=c++20 (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1758/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/cpp2a/spaceship-narrowing1.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/cpp2a/spaceship-narrowing1.C 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1848 Regression] FAIL: gcc.dg/vect/slp-54.c scan-tree-dump vect "vectorizing stmts using SLP" on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

7eb8b65780d9dc3e266056383279b00d5e152bea is the first bad commit
commit 7eb8b65780d9dc3e266056383279b00d5e152bea
Author: Richard Biener 
Date:   Wed Jul 3 13:50:59 2024 +0200

Support group size of three in SLP store permute lowering

caused

FAIL: gcc.dg/vect/slp-54.c -flto -ffat-lto-objects  scan-tree-dump vect 
"vectorizing stmts using SLP"
FAIL: gcc.dg/vect/slp-54.c scan-tree-dump vect "vectorizing stmts using SLP"

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1848/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-54.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-54.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1936 Regression] FAIL: gcc.target/i386/avx512vl-vpmovuswb-2.c execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

80e446e829d818dc19daa6e671b9626e93ee4949 is the first bad commit
commit 80e446e829d818dc19daa6e671b9626e93ee4949
Author: Pan Li 
Date:   Fri Jul 5 20:36:35 2024 +0800

Match: Support form 2 for the .SAT_TRUNC

caused

FAIL: gcc.target/i386/avx512f-vpmovusqb-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmovusdb-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmovusdw-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmovusqb-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmovusqd-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmovusqw-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmovuswb-2.c execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1936/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512f-vpmovusqb-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512f-vpmovusqb-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdb-2.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdb-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdb-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdb-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdw-2.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdw-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdw-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusdw-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusqb-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusqb-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusqd-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusqd-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusqw-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovusqw-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovuswb-2.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovuswb-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovuswb-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512vl-vpmovuswb-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2011 Regression] FAIL: gcc.target/i386/pr31985.c scan-assembler-times movl 4 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a6f551d079de1d151b272bcdd3d42316857c9d4e is the first bad commit
commit a6f551d079de1d151b272bcdd3d42316857c9d4e
Author: Jeff Law 
Date:   Fri Jul 12 13:11:33 2024 -0600

[PR rtl-optimization/115876] Fix one of two ubsan reported issues in new 
ext-dce.cc code

caused

FAIL: gcc.target/i386/ashldi3-1.c scan-assembler-times xorl 2
FAIL: gcc.target/i386/pr31985.c scan-assembler-times movl 4

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2011/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/ashldi3-1.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/ashldi3-1.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr31985.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr31985.c --target_board='unix{-m32\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2135 Regression] FAIL: libgomp.oacc-fortran/privatized-ref-2.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -Os at line 32 (test for warnings, line 31) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c3aa339ea50f050caf7ed2e497f5499ec2d7b9cc is the first bad commit
commit c3aa339ea50f050caf7ed2e497f5499ec2d7b9cc
Author: Paul Thomas 
Date:   Thu Jul 18 08:51:35 2024 +0100

Fortran: Suppress bogus used uninitialized warnings [PR108889].

caused

FAIL: libgomp.oacc-fortran/privatized-ref-2.f90 -DACC_DEVICE_TYPE_host=1 
-DACC_MEM_SHARED=1 -foffload=disable  -O0   at line 32 (test for warnings, line 
31)
FAIL: libgomp.oacc-fortran/privatized-ref-2.f90 -DACC_DEVICE_TYPE_host=1 
-DACC_MEM_SHARED=1 -foffload=disable  -O1   at line 32 (test for warnings, line 
31)
FAIL: libgomp.oacc-fortran/privatized-ref-2.f90 -DACC_DEVICE_TYPE_host=1 
-DACC_MEM_SHARED=1 -foffload=disable  -O2   at line 32 (test for warnings, line 
31)
FAIL: libgomp.oacc-fortran/privatized-ref-2.f90 -DACC_DEVICE_TYPE_host=1 
-DACC_MEM_SHARED=1 -foffload=disable  -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions   at line 32 (test for warnings, line 
31)
FAIL: libgomp.oacc-fortran/privatized-ref-2.f90 -DACC_DEVICE_TYPE_host=1 
-DACC_MEM_SHARED=1 -foffload=disable  -O3 -g   at line 32 (test for warnings, 
line 31)
FAIL: libgomp.oacc-fortran/privatized-ref-2.f90 -DACC_DEVICE_TYPE_host=1 
-DACC_MEM_SHARED=1 -foffload=disable  -Os   at line 32 (test for warnings, line 
31)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2135/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.oacc-fortran/privatized-ref-2.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.oacc-fortran/privatized-ref-2.f90 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.oacc-fortran/privatized-ref-2.f90 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="fortran.exp=libgomp.oacc-fortran/privatized-ref-2.f90 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r13-8926 Regression] FAIL: gfortran.dg/pr113363.f90 -Os (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

7c81ff02a943cda82cc1a82b36ae8ab14470b00a is the first bad commit
commit 7c81ff02a943cda82cc1a82b36ae8ab14470b00a
Author: Paul Thomas 
Date:   Mon May 13 07:27:20 2024 +0100

Fortran: Fix wrong code in unlimited polymorphic assignment [PR113363]

caused

FAIL: gfortran.dg/pr113363.f90   -O0  (internal compiler error: Segmentation 
fault)
FAIL: gfortran.dg/pr113363.f90   -O0  (test for excess errors)
FAIL: gfortran.dg/pr113363.f90   -O1  (internal compiler error: Segmentation 
fault)
FAIL: gfortran.dg/pr113363.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/pr113363.f90   -O2  (internal compiler error: Segmentation 
fault)
FAIL: gfortran.dg/pr113363.f90   -O2  (test for excess errors)
FAIL: gfortran.dg/pr113363.f90   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  (internal compiler error: 
Segmentation fault)
FAIL: gfortran.dg/pr113363.f90   -O3 -fomit-frame-pointer -funroll-loops 
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/pr113363.f90   -O3 -g  (internal compiler error: Segmentation 
fault)
FAIL: gfortran.dg/pr113363.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/pr113363.f90   -Os  (internal compiler error: Segmentation 
fault)
FAIL: gfortran.dg/pr113363.f90   -Os  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/gcc-13/releases/gcc-13/r13-8926/usr
 --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/pr113363.f90 --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/pr113363.f90 --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/pr113363.f90 --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/pr113363.f90 --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-499 Regression] FAIL: g++.target/i386/pr107563-b.C scan-assembler-times psrlw 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a71f90c5a7ae2942083921033cb23dcd63e70525 is the first bad commit
commit a71f90c5a7ae2942083921033cb23dcd63e70525
Author: Levy Hsu 
Date:   Thu May 9 16:50:56 2024 +0800

x86: Add 3-instruction subroutine vector shift for V16QI in 
ix86_expand_vec_perm_const_1 [PR107563]

caused

FAIL: g++.target/i386/pr107563-a.C   scan-assembler-times por 1
FAIL: g++.target/i386/pr107563-a.C   scan-assembler-times psllw 1
FAIL: g++.target/i386/pr107563-a.C   scan-assembler-times psraw 1
FAIL: g++.target/i386/pr107563-b.C   scan-assembler-times por 1
FAIL: g++.target/i386/pr107563-b.C   scan-assembler-times psllw 1
FAIL: g++.target/i386/pr107563-b.C   scan-assembler-times psrlw 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-499/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=g++.target/i386/pr107563-a.C --target_board='unix{-m64\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=g++.target/i386/pr107563-b.C --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=g++.target/i386/pr107563-b.C --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-512 Regression] FAIL: gfortran.dg/vect/vect-do-concurrent-1.f90 -O at line 14 (test for warnings, line ) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

9b7cad5884f21cc5783075be0043777448db3fab is the first bad commit
commit 9b7cad5884f21cc5783075be0043777448db3fab
Author: Jan Hubicka 
Date:   Wed May 15 14:14:27 2024 +0200

Avoid pointer compares on TYPE_MAIN_VARIANT in TBAA

caused

FAIL: gcc.dg/tree-ssa/ssa-lim-15.c scan-tree-dump lim2 "Executing store motion"
FAIL: g++.dg/tree-ssa/pr83215.C  -std=gnu++14  scan-tree-dump-times fre1 "\\*i" 
1
FAIL: g++.dg/tree-ssa/pr83215.C  -std=gnu++17  scan-tree-dump-times fre1 "\\*i" 
1
FAIL: g++.dg/tree-ssa/pr83215.C  -std=gnu++20  scan-tree-dump-times fre1 "\\*i" 
1
FAIL: g++.dg/tree-ssa/pr83215.C  -std=gnu++98  scan-tree-dump-times fre1 "\\*i" 
1
FAIL: gfortran.dg/vect/vect-do-concurrent-1.f90   -O   at line 14 (test for 
warnings, line )

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-512/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-15.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-15.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-15.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-15.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/tree-ssa/pr83215.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/tree-ssa/pr83215.C --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/tree-ssa/pr83215.C --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/tree-ssa/pr83215.C --target_board='unix{-m64\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gfortran.dg/vect/vect-do-concurrent-1.f90 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gfortran.dg/vect/vect-do-concurrent-1.f90 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-580 Regression] FAIL: experimental/functional/searchers.cc -std=gnu++17 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

f3e5f4c58591f5dacdd14a65ec47bbe310df02a0 is the first bad commit
commit f3e5f4c58591f5dacdd14a65ec47bbe310df02a0
Author: Richard Biener 
Date:   Mon Mar 11 11:17:32 2024 +0100

tree-optimization/13962 - handle ptr-ptr compares in ptrs_compare_unequal

caused

FAIL: experimental/functional/searchers.cc  -std=gnu++17 execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-580/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=experimental/functional/searchers.cc 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=experimental/functional/searchers.cc 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=experimental/functional/searchers.cc 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check 
RUNTESTFLAGS="conformance.exp=experimental/functional/searchers.cc 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-812 Regression] FAIL: gcc.dg/vect/vect-gather-4.c scan-tree-dump-not vect "Loop contains only SLP stmts" on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c71886f2ca2e46ce1449c7064d6f1b447d02fcba is the first bad commit
commit c71886f2ca2e46ce1449c7064d6f1b447d02fcba
Author: Richard Biener 
Date:   Fri Sep 29 13:13:16 2023 +0200

Avoid splitting store dataref groups during SLP discovery

caused

FAIL: gcc.dg/vect/vect-gather-4.c -flto -ffat-lto-objects  scan-tree-dump-not 
vect "Loop contains only SLP stmts"
FAIL: gcc.dg/vect/vect-gather-4.c scan-tree-dump-not vect "Loop contains only 
SLP stmts"

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-812/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-gather-4.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-gather-4.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-853 Regression] FAIL: gcc.dg/tree-ssa/bitops-9.c scan-tree-dump-times optimized "bit_not_expr, " 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c5a7628470a7fb801ebeea82e16a4549db43bfa5 is the first bad commit
commit c5a7628470a7fb801ebeea82e16a4549db43bfa5
Author: Andrew Pinski 
Date:   Sun May 26 17:59:21 2024 -0700

match: Use uniform_integer_cst_p in bitwise_inverted_equal_p [PR115238]

caused

FAIL: gcc.dg/tree-ssa/bitops-9.c scan-tree-dump-times optimized "bit_ior_expr, 
" 1
FAIL: gcc.dg/tree-ssa/bitops-9.c scan-tree-dump-times optimized "bit_not_expr, 
" 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-853/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/bitops-9.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/bitops-9.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-10271 Regression] FAIL: gcc.target/i386/avx10_1-25.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

97474ba2075dc3c397bbc2861646561dcfd13386 is the first bad commit
commit 97474ba2075dc3c397bbc2861646561dcfd13386
Author: Haochen Jiang 
Date:   Mon May 20 15:52:32 2024 +0800

Add AVX10.1 target_clones support

caused

FAIL: gcc.target/i386/avx10_1-25.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/gcc-14/releases/gcc-14/r14-10271/usr
 --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_1-25.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_1-25.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-984 Regression] FAIL: gcc.target/i386/pr86722.c scan-assembler-times (?n)(?:andnpd|andpd) 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

ac306de7d5100d3682eae2270995a9abbe19db38 is the first bad commit
commit ac306de7d5100d3682eae2270995a9abbe19db38
Author: liuhongt 
Date:   Fri May 31 14:38:07 2024 +0800

Add some preference for floating point rtl ifcvt when sse4.1 is not 
available

caused

FAIL: gcc.target/i386/pr86722.c scan-assembler-times (?n)(?:andnpd|andpd) 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-984/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr86722.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-983 Regression] FAIL: gcc.target/i386/avx10_1-25.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

1f2ca510065a2033bac408eb5a960ef0126f25cc is the first bad commit
commit 1f2ca510065a2033bac408eb5a960ef0126f25cc
Author: Haochen Jiang 
Date:   Mon May 20 15:52:32 2024 +0800

Add AVX10.1 target_clones support

caused

FAIL: gcc.target/i386/avx10_1-25.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-983/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_1-25.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_1-25.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2820 Regression] FAIL: gcc.target/i386/pr105493.c scan-tree-dump-times slp1 " MEM \\[[^]]*\\] = " 4 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

ab18785840d7b8afd9f716bab9d1eab415bc4fe9 is the first bad commit
commit ab18785840d7b8afd9f716bab9d1eab415bc4fe9
Author: Manolis Tsamis 
Date:   Tue Jun 25 08:00:04 2024 -0700

Rearrange SLP nodes with duplicate statements [PR98138]

caused

FAIL: gcc.target/i386/pr105493.c scan-tree-dump-times slp1 "  MEM 
 \\[[^]]*\\] = " 4

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2820/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr105493.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr105493.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2991 Regression] FAIL: gcc.target/i386/avx10_2-rounding-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

e22e3af1954469c40b139b7cfa8e7708592f4bfd is the first bad commit
commit e22e3af1954469c40b139b7cfa8e7708592f4bfd
Author: Hu, Lin1 
Date:   Mon Aug 19 10:08:51 2024 +0800

AVX10.2 ymm rounding: Support vadd{s,d,h} and vcmp{s,d,h} intrins

caused

FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmppd[ 
\\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7](?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmppd[ 
\\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7]{%k[1-7]}(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpph[ 
\\t]+\\$3[^\n\r]*{sae}[^\n\r]*%ymm[0-9]+[^\n\r]*%ymm[0-9]+[^\n\r]*%k[0-9][^\n\r]*(?:\n|[
 \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpph[ 
\\t]+[^{\n]*\\$4[^\n\r]*%ymm[0-9]+[^\n\r]*%ymm[0-9]+[^\n\r]*%k[0-9]{%k[0-9]}[^\n\r]*(?:\n|[
 \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpps[ 
\\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7](?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpps[ 
\\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7]{%k[1-7]}(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2991/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3000 Regression] FAIL: gcc.target/i386/avx10_2-rounding-3.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

3d1b5530ea1d23e26dc5ab70aa4a2e7b9dc19b50 is the first bad commit
commit 3d1b5530ea1d23e26dc5ab70aa4a2e7b9dc19b50
Author: Hu, Lin1 
Date:   Mon Aug 19 10:09:03 2024 +0800

AVX10.2 ymm rounding: Support vcvt{,u}w2ph and vdivp{s,d,h} intrins

caused

FAIL: gcc.target/i386/avx10_2-rounding-3.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3000/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-3.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-3.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2997 Regression] FAIL: gcc.target/i386/avx10_2-rounding-2.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

6e231f8504874828b23bbe89f3ef4086dcc15a44 is the first bad commit
commit 6e231f8504874828b23bbe89f3ef4086dcc15a44
Author: Hu, Lin1 
Date:   Mon Aug 19 10:08:59 2024 +0800

AVX10.2 ymm rounding: Support vcvtqq2p{s,d,h} and vcvttpd2{,u}{dq,qq} 
intrins

caused

FAIL: gcc.target/i386/avx10_2-rounding-2.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2997/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3052 Regression] FAIL: gfortran.dg/sizeof_6.f90 -O1 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c7b76a076cb2c6ded7ae208464019b04cb0531a2 is the first bad commit
commit c7b76a076cb2c6ded7ae208464019b04cb0531a2
Author: Andrew Pinski 
Date:   Mon Aug 19 08:06:36 2024 -0700

match: Reject non-ssa name/min invariants in gimple_extract [PR116412]

caused

FAIL: gfortran.dg/sizeof_6.f90   -O1  execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3052/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/sizeof_6.f90 --target_board='unix{-m64}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r13-8987 Regression] FAIL: gcc.target/i386/pieces-strcpy-2.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

aea374238cec1a1e53fb79575d2f998e16926999 is the first bad commit
commit aea374238cec1a1e53fb79575d2f998e16926999
Author: liuhongt 
Date:   Thu Aug 15 12:54:07 2024 +0800

Align ix86_{move_max,store_max} with vectorizer.

caused

FAIL: gcc.target/i386/pieces-memcpy-10.c scan-assembler-times vmovdqu[ 
\\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memcpy-6.c scan-assembler-times vmovdqu[ 
\\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memset-38.c scan-assembler-times vmovdqu[ 
\\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-38.c scan-assembler-times vpcmpeqd[ 
\\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memset-40.c scan-assembler-not %[re]bp
FAIL: gcc.target/i386/pieces-memset-40.c scan-assembler-times vmovdqu[ 
\\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memset-40.c scan-assembler-times vpbroadcastb[ 
\\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memset-41.c scan-assembler-not %[re]bp
FAIL: gcc.target/i386/pieces-memset-42.c scan-assembler-times vmovdqu[ 
\\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-43.c scan-assembler-times vmovdqu[ 
\\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-43.c scan-assembler-times vpcmpeqd[ 
\\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-strcpy-2.c scan-assembler-times vmovdqa[ 
\\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-strcpy-2.c scan-assembler-times vmovdqu[ 
\\t]+[^\n]*%xmm 4

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/gcc-13/releases/gcc-13/r13-8987/usr
 --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memcpy-10.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memcpy-10.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memcpy-10.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memcpy-10.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memcpy-6.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memcpy-6.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-38.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-38.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-38.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-38.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-40.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-40.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-41.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-41.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-42.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-42.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-42.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-42.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-43.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-43.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-43.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-memset-43.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-strcpy-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pieces-strcpy-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this repor

[r15-3080 Regression] FAIL: gfortran.dg/sizeof_6.f90 -O1 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c1aba5e7e7da5f2bd75873d3853f1de85addc2ac is the first bad commit
commit c1aba5e7e7da5f2bd75873d3853f1de85addc2ac
Author: Sam James 
Date:   Wed Aug 14 13:25:01 2024 +0100

Makefile.tpl: fix whitespace in licence header

caused

FAIL: gfortran.dg/sizeof_6.f90   -O1  execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3080/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/sizeof_6.f90 --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3128 Regression] FAIL: gcc.target/i386/part-vect-complexhf.c scan-assembler-times vfmaddcph[ \\t] 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

de1923f9f4d5344694c22ca883aeb15caf635734 is the first bad commit
commit de1923f9f4d5344694c22ca883aeb15caf635734
Author: Richard Biener 
Date:   Fri Aug 23 13:44:29 2024 +0200

tree-optimization/116463 - complex lowering leaves around dead stmts

caused

FAIL: gcc.target/i386/avx512fp16-vector-complex-float.c scan-assembler-not 
vfmadd[123]*ph[ \\t]
FAIL: gcc.target/i386/avx512fp16-vector-complex-float.c scan-assembler-times 
vfmaddcph[ \\t] 1
FAIL: gcc.target/i386/part-vect-complexhf.c scan-assembler-times vfmaddcph[ 
\\t] 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3128/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512fp16-vector-complex-float.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512fp16-vector-complex-float.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512fp16-vector-complex-float.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512fp16-vector-complex-float.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/part-vect-complexhf.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/part-vect-complexhf.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3176 Regression] FAIL: gcc.target/i386/funcspec-6.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

8db80b2735782d793a83a9ef7eb012d83be7660d is the first bad commit
commit 8db80b2735782d793a83a9ef7eb012d83be7660d
Author: Hongyu Wang 
Date:   Mon Aug 26 10:53:37 2024 +0800

[PATCH 1/2] AVX10.2: Support media instructions

caused

FAIL: gcc.target/i386/avx10_2-builtin-1.c (test for excess errors)
FAIL: gcc.target/i386/avx10_2-media-1.c (test for excess errors)
FAIL: gcc.target/i386/funcspec-5.c (test for excess errors)
FAIL: gcc.target/i386/funcspec-6.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3176/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-builtin-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-builtin-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-media-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-media-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/funcspec-5.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/funcspec-6.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3179 Regression] FAIL: gcc.target/i386/avx10_2-bf16-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

9023662464ac7a0bbac72d94078ea0845bf99c86 is the first bad commit
commit 9023662464ac7a0bbac72d94078ea0845bf99c86
Author: konglin1 
Date:   Mon Aug 26 10:53:43 2024 +0800

[PATCH 1/2] AVX10.2: Support BF16 instructions

caused

FAIL: gcc.target/i386/avx10_2-bf16-1.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3179/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-bf16-1.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-bf16-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-bf16-1.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-bf16-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3177 Regression] FAIL: gcc.target/i386/avx10_2-builtin-2.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

af0a06274fce2ca64456f5b13b4bc8ff864a45e4 is the first bad commit
commit af0a06274fce2ca64456f5b13b4bc8ff864a45e4
Author: Haochen Jiang 
Date:   Mon Aug 26 10:53:39 2024 +0800

[PATCH 2/2] AVX10.2: Support media instructions

caused

FAIL: gcc.target/i386/avx10_2-builtin-2.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3177/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-builtin-2.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-builtin-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3185 Regression] FAIL: gcc.target/i386/avx10_2-compare-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

576bd309ded9dfe258023f26924c064a7bf12875 is the first bad commit
commit 576bd309ded9dfe258023f26924c064a7bf12875
Author: Zhang, Jun 
Date:   Mon Aug 26 10:53:54 2024 +0800

AVX10.2: Support compare instructions

caused

FAIL: gcc.target/i386/avx10_2-compare-1.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3185/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-compare-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-compare-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3178 Regression] FAIL: gcc.target/i386/avx10_2-convert-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

2a046117a8376578337dc385f171e908155782b7 is the first bad commit
commit 2a046117a8376578337dc385f171e908155782b7
Author: Levy Hsu 
Date:   Mon Aug 26 10:53:41 2024 +0800

AVX10.2: Support convert instructions

caused

FAIL: gcc.target/i386/avx10_2-convert-1.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3178/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-convert-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-convert-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3184 Regression] FAIL: gcc.target/i386/avx10_2-vmovw-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

f6fe2962daf7b8d8532c768c3b9eab00f99cce5b is the first bad commit
commit f6fe2962daf7b8d8532c768c3b9eab00f99cce5b
Author: Zhang, Jun 
Date:   Mon Aug 26 10:53:52 2024 +0800

AVX10.2: Support vector copy instructions

caused

FAIL: gcc.target/i386/avx10_2-vmovd-1.c (test for excess errors)
FAIL: gcc.target/i386/avx10_2-vmovw-1.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3184/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vmovd-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vmovd-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vmovw-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vmovw-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-3183 Regression] FAIL: gcc.target/i386/avx10_2-minmax-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

889f6dd0d8c7317f62578c900c0f662e919786a2 is the first bad commit
commit 889f6dd0d8c7317f62578c900c0f662e919786a2
Author: Mo, Zewei 
Date:   Mon Aug 26 10:53:50 2024 +0800

AVX10.2: Support minmax instructions

caused

FAIL: gcc.target/i386/avx10_2-minmax-1.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3183/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-minmax-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-minmax-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1056 Regression] FAIL: gcc.dg/vect/vect-cond-reduc-in-order-2-signed-zero.c -flto -ffat-lto-objects execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

4653b682ef161c3c2fc7bf8462b8f9206a1349e6 is the first bad commit
commit 4653b682ef161c3c2fc7bf8462b8f9206a1349e6
Author: Richard Biener 
Date:   Tue Mar 5 15:46:24 2024 +0100

Allow single-lane SLP in-order reductions

caused

FAIL: gcc.dg/vect/vect-cond-reduc-in-order-2-signed-zero.c execution test
FAIL: gcc.dg/vect/vect-cond-reduc-in-order-2-signed-zero.c -flto 
-ffat-lto-objects execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1056/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-cond-reduc-in-order-2-signed-zero.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-cond-reduc-in-order-2-signed-zero.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1058 Regression] FAIL: gcc.target/i386/pr77881.c scan-assembler js[ \t].?L on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c989e59fc99d994159114304d4e715c72bedff0a is the first bad commit
commit c989e59fc99d994159114304d4e715c72bedff0a
Author: Hongyu Wang 
Date:   Wed Mar 27 10:13:06 2024 +0800

[APX CCMP] Support APX CCMP

caused

FAIL: gcc.target/i386/pr77881.c scan-assembler js[ \t].?L

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1058/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr77881.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr77881.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr77881.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr77881.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1100 Regression] FAIL: gcc.target/i386/sse2-v1ti-vne.c scan-assembler-times pcmpeq 6 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

ec985bc97a01577bca8307f986caba7ba7633cde is the first bad commit
commit ec985bc97a01577bca8307f986caba7ba7633cde
Author: Roger Sayle 
Date:   Fri Jun 7 13:57:23 2024 +0100

i386: Improve handling of ternlog instructions in i386/sse.md

caused

FAIL: gcc.target/i386/avx2-pr98461.c scan-assembler-times \tnotl\t 6
FAIL: gcc.target/i386/avx512f-copysign.c scan-assembler-times vpternlog[dq][ 
\\t]+\\$(?:216|228|0xd8|0xe4), 5
FAIL: gcc.target/i386/avx512f-vpternlogd-3.c scan-assembler-times vpternlogd[ 
\\t] 694
FAIL: gcc.target/i386/avx512f-vpternlogd-4.c scan-assembler-times vpternlogd[ 
\\t] 694
FAIL: gcc.target/i386/pr101989-broadcast-1.c scan-assembler-times \\{1to4\\} 4
FAIL: gcc.target/i386/sse2-v1ti-vne.c scan-assembler-times pcmpeq 6
FAIL: gcc.target/i386/sse2-v1ti-vne.c scan-assembler-times pxor 3

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1100/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-pr98461.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-pr98461.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512f-copysign.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512f-vpternlogd-3.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512f-vpternlogd-3.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512f-vpternlogd-4.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512f-vpternlogd-4.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr101989-broadcast-1.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr101989-broadcast-1.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/sse2-v1ti-vne.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1239 Regression] FAIL: gcc.dg/vect/pr115385.c -flto -ffat-lto-objects execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

6669dc51515313dd1e60c493596dbc90429fc362 is the first bad commit
commit 6669dc51515313dd1e60c493596dbc90429fc362
Author: Richard Biener 
Date:   Fri Jun 7 14:47:12 2024 +0200

tree-optimization/115385 - handle more gaps with peeling of a single 
iteration

caused

FAIL: gcc.dg/vect/pr115385.c execution test
FAIL: gcc.dg/vect/pr115385.c -flto -ffat-lto-objects execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1239/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr115385.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr115385.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1240 Regression] FAIL: gcc.target/i386/vect-strided-3.c scan-assembler-times movhps 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

e8f4d525cb320ff11dd95b985d8043fef0510878 is the first bad commit
commit e8f4d525cb320ff11dd95b985d8043fef0510878
Author: Richard Biener 
Date:   Mon Jun 10 15:31:35 2024 +0200

Improve code generation of strided SLP loads

caused

FAIL: gcc.target/i386/vect-strided-3.c scan-assembler-times movhps 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1240/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-strided-3.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1330 Regression] FAIL: gcc.target/i386/vect-strided-3.c scan-assembler-times movq 4 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

1438b15e5430f7fab3832c35d262d6b58caba469 is the first bad commit
commit 1438b15e5430f7fab3832c35d262d6b58caba469
Author: Richard Biener 
Date:   Fri Jun 14 11:31:53 2024 +0200

Adjust gcc.target/i386/vect-strided-3.c

caused

FAIL: gcc.target/i386/vect-strided-3.c scan-assembler-times movq 4

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1330/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-strided-3.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1394 Regression] FAIL: gcc.dg/pr115109.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c9b96a68860bfdee49d40b4a844af7c5ef69cd12 is the first bad commit
commit c9b96a68860bfdee49d40b4a844af7c5ef69cd12
Author: Martin Uecker 
Date:   Sat May 18 22:00:04 2024 +0200

c23: Fix for redeclared enumerator initialized with different type 
[PR115109]

caused

FAIL: gcc.dg/c23-tag-enum-6.c  (test for errors, line 10)
FAIL: gcc.dg/c23-tag-enum-6.c  (test for errors, line 13)
FAIL: gcc.dg/c23-tag-enum-7.c (test for excess errors)
FAIL: gcc.dg/pr115109.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1394/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/c23-tag-enum-6.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/c23-tag-enum-6.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/c23-tag-enum-7.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/c23-tag-enum-7.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr115109.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr115109.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1502 Regression] FAIL: gcc.target/i386/pr89984-2.c scan-assembler-not vmovaps on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

9a76db24e044c8058497051a652cca4228cbc8e9 is the first bad commit
commit 9a76db24e044c8058497051a652cca4228cbc8e9
Author: Roger Sayle 
Date:   Thu Jun 20 16:30:15 2024 +0100

i386: Allow all register_operand SUBREGs in x86_ternlog_idx.

caused

FAIL: gcc.target/i386/pr89984-2.c scan-assembler-not vmovaps

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1502/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr89984-2.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1575 Regression] FAIL: gcc.target/i386/pr101716.c scan-assembler-not movl[\\t ][^\\n]*eax on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

ea8061f46a301797e7ba33b52e3b4713fb8e6b48 is the first bad commit
commit ea8061f46a301797e7ba33b52e3b4713fb8e6b48
Author: Haochen Gui 
Date:   Mon Jun 24 13:12:51 2024 +0800

fwprop: invoke change_is_worthwhile to judge if a replacement is worthwhile

caused

FAIL: gcc.target/i386/pr101716.c scan-assembler leal[\\t ][^\\n]*eax
FAIL: gcc.target/i386/pr101716.c scan-assembler-not movl[\\t ][^\\n]*eax

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1575/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr101716.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr101716.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-1619 Regression] FAIL: gcc.target/i386/stack-check-17.c scan-assembler-not pop on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

3b9b8d6cfdf59337f4b7ce10ce92a98044b2657b is the first bad commit
commit 3b9b8d6cfdf59337f4b7ce10ce92a98044b2657b
Author: Surya Kumari Jangala 
Date:   Tue Jun 25 08:37:49 2024 -0500

ira: Scale save/restore costs of callee save registers with block frequency

caused

FAIL: gcc.dg/pr10474.c scan-rtl-dump pro_and_epilogue "Performing 
shrink-wrapping"
FAIL: gcc.target/i386/force-indirect-call-2.c scan-assembler-times 
(?:call|jmp)[ \\t]+\\*% 3
FAIL: gcc.target/i386/pr63527.c scan-assembler-not movl[ \t]%[^,]+, %ebx
FAIL: gcc.target/i386/pr91384.c scan-assembler-not testl
FAIL: gcc.target/i386/stack-check-17.c scan-assembler-not pop

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1619/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr10474.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr10474.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/force-indirect-call-2.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/force-indirect-call-2.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr63527.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr63527.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr91384.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr91384.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr91384.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr91384.c --target_board='unix{-m64\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/stack-check-17.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/stack-check-17.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2196 Regression] FAIL: c-c++-common/dfp/convert-bfp-6.c -std=gnu++98 execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

88d16194d0c8a6bdc2896c8944bfbf3e6038c9d2 is the first bad commit
commit 88d16194d0c8a6bdc2896c8944bfbf3e6038c9d2
Author: Jeff Law 
Date:   Mon Jul 22 08:45:10 2024 -0600

[NFC][PR rtl-optimization/115877] Avoid setting irrelevant bit groups as 
live in ext-dce

caused

FAIL: c-c++-common/dfp/convert-bfp-10.c execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c  -std=c++98 execution test
FAIL: c-c++-common/dfp/convert-bfp-6.c execution test
FAIL: c-c++-common/dfp/convert-bfp-6.c  -std=gnu++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-6.c  -std=gnu++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-6.c  -std=gnu++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-6.c  -std=gnu++98 execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2196/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-10.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-10.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-6.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-6.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2275 Regression] FAIL: gcc.dg/torture/pr116037.c -Os (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

679086172b84be18c55fdbb9cda7e97806e7c083 is the first bad commit
commit 679086172b84be18c55fdbb9cda7e97806e7c083
Author: Jeff Law 
Date:   Wed Jul 24 11:16:26 2024 -0600

[rtl-optimization/116037] Explicitly track if a destination was skipped in 
ext-dce

caused

FAIL: gcc.dg/torture/pr116037.c   -O0  (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c   -O1  (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c   -O2 -flto -fno-use-linker-plugin 
-flto-partition=none  (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c   -O2 -flto -fuse-linker-plugin 
-fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c   -O2  (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c   -O3 -g  (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c   -Os  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2275/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/pr116037.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/pr116037.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2362 Regression] FAIL: g++.dg/cpp2a/consteval-prop21.C -std=c++26 (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

a9e9f772c7488ac0c09dd92f28890bdab939771a is the first bad commit
commit a9e9f772c7488ac0c09dd92f28890bdab939771a
Author: Jason Merrill 
Date:   Fri Jul 26 17:20:18 2024 -0400

c++: consteval propagation and templates [PR115986]

caused

FAIL: g++.dg/cpp2a/consteval-prop21.C  -std=c++20 (test for excess errors)
FAIL: g++.dg/cpp2a/consteval-prop21.C  -std=c++23 (test for excess errors)
FAIL: g++.dg/cpp2a/consteval-prop21.C  -std=c++26 (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2362/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/cpp2a/consteval-prop21.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/cpp2a/consteval-prop21.C --target_board='unix{-m32\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r13-8949 Regression] FAIL: gcc.target/i386/avx512dq-vreducess-1b.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

bb15c4cf21dbe76df5a225342d1fbe8ecd3c7971 is the first bad commit
commit bb15c4cf21dbe76df5a225342d1fbe8ecd3c7971
Author: Haochen Jiang 
Date:   Thu Jul 25 16:12:20 2024 +0800

i386: Fix AVX512 intrin macro typo

caused

FAIL: gcc.target/i386/avx512dq-vreducesd-1b.c (test for excess errors)
FAIL: gcc.target/i386/avx512dq-vreducess-1b.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/gcc-13/releases/gcc-13/r13-8949/usr
 --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducesd-1b.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducesd-1b.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducesd-1b.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducesd-1b.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducess-1b.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducess-1b.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducess-1b.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512dq-vreducess-1b.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2378 Regression] FAIL: gfortran.dg/compiler-directive_2.f -O (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

29b1587e7d34667a1fd63071c1e4f5475cd71026 is the first bad commit
commit 29b1587e7d34667a1fd63071c1e4f5475cd71026
Author: Tobias Burnus 
Date:   Mon Jul 29 11:46:57 2024 +0200

OpenMP/Fortran: Fix handling of 'declare target' with 'link' clause 
[PR115559]

caused

FAIL: gfortran.dg/compiler-directive_2.f   -O   (test for errors, line 8)
FAIL: gfortran.dg/compiler-directive_2.f   -O  (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2378/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/compiler-directive_2.f 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/compiler-directive_2.f 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2416 Regression] FAIL: gcc.target/i386/switch-exp-transform-3.c scan-tree-dump-times switchconv "Applying exponential index transform" 6 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

2b3533cd871f62923e7a4f06a826f37bf0f35c5c is the first bad commit
commit 2b3533cd871f62923e7a4f06a826f37bf0f35c5c
Author: Filip Kastl 
Date:   Tue Jul 30 18:40:29 2024 +0200

gimple ssa: Teach switch conversion to optimize powers of 2 switches

caused

FAIL: gcc.target/i386/switch-exp-transform-3.c scan-tree-dump-times switchconv 
"Applying exponential index transform" 6

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2416/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/switch-exp-transform-3.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/switch-exp-transform-3.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2739 Regression] FAIL: gfortran.dg/class_transformational_1.f90 -O3 -g (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

4cb07a38233aadb4b389a6e5236c95f52241b6e0 is the first bad commit
commit 4cb07a38233aadb4b389a6e5236c95f52241b6e0
Author: Paul Thomas 
Date:   Tue Aug 6 06:42:27 2024 +0100

Fortran: Fix class transformational intrinsic calls [PR102689]

caused

FAIL: gfortran.dg/class_transformational_1.f90   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler 
error: in make_ssa_name_fn, at tree-ssanames.cc:355)
FAIL: gfortran.dg/class_transformational_1.f90   -O3 -fomit-frame-pointer 
-funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess 
errors)
FAIL: gfortran.dg/class_transformational_1.f90   -O3 -g  (internal compiler 
error: in make_ssa_name_fn, at tree-ssanames.cc:355)
FAIL: gfortran.dg/class_transformational_1.f90   -O3 -g  (test for excess 
errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2739/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/class_transformational_1.f90 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=gfortran.dg/class_transformational_1.f90 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2758 Regression] FAIL: g++.dg/other/sse2-pr85572-1.C -std=gnu++98 scan-assembler-times \\mpxor\\M 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

2f759fa9f4dd78ae8d86482ccda72a335aaac404 is the first bad commit
commit 2f759fa9f4dd78ae8d86482ccda72a335aaac404
Author: Roger Sayle 
Date:   Tue Aug 6 17:19:29 2024 +0100

i386: Refactor V2DI arithmetic right shift expansion for STV.

caused

FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++17  scan-assembler-times 
\\mpsrlq\\M 1
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++17  scan-assembler-times 
\\mpsubq\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++17  scan-assembler-times 
\\mpxor\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++26  scan-assembler-times 
\\mpsrlq\\M 1
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++26  scan-assembler-times 
\\mpsubq\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++26  scan-assembler-times 
\\mpxor\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++98  scan-assembler-times 
\\mpsrlq\\M 1
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++98  scan-assembler-times 
\\mpsubq\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++98  scan-assembler-times 
\\mpxor\\M 2

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2758/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/other/sse2-pr85572-1.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/other/sse2-pr85572-1.C --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/other/sse2-pr85572-1.C --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/other/sse2-pr85572-1.C --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2794 Regression] FAIL: gcc.target/i386/pr116258.c scan-assembler-times shufps 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

5b97d1a2102dca57918947d7e40a6ca68871 is the first bad commit
commit 5b97d1a2102dca57918947d7e40a6ca68871
Author: Richard Biener 
Date:   Wed Aug 7 13:54:53 2024 +0200

tree-optimization/116258 - do not lower PAREN_EXPR of vectors

caused

FAIL: gcc.target/i386/pr116258.c scan-assembler-times shufps 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2794/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr116258.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr116258.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-2799 Regression] FAIL: libgomp.c++/static-aggr-constructor-destructor-2.C scan-tree-dump-times optimized "void _GLOBAL__off_I_" 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

f1bfba3a9b3f31e3e06bfd1911c9f223869ea03f is the first bad commit
commit f1bfba3a9b3f31e3e06bfd1911c9f223869ea03f
Author: Tobias Burnus 
Date:   Wed Aug 7 19:31:19 2024 +0200

OpenMP: Constructors and destructors for "declare target" static aggregates

caused

FAIL: libgomp.c++/static-aggr-constructor-destructor-1.C scan-tree-dump-times 
optimized "__attribute__\\(\\([^\n\r]*omp declare target nohost" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-1.C scan-tree-dump-times 
optimized "void _GLOBAL__off_I_v1" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-2.C scan-tree-dump-times 
optimized "__attribute__\\(\\([^\n\r]*omp declare target nohost" 1
FAIL: libgomp.c++/static-aggr-constructor-destructor-2.C scan-tree-dump-times 
optimized "void _GLOBAL__off_I_" 1

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2799/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-1.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-1.C 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-1.C 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-1.C 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-2.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-2.C 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-2.C 
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/static-aggr-constructor-destructor-2.C 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r14-9969 Regression] FAIL: gcc.dg/vect/vect-early-break_124-pr114403.c -flto -ffat-lto-objects execution test on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

85002f8085c25bb3e74ab013581a74e7c7ae006b is the first bad commit
commit 85002f8085c25bb3e74ab013581a74e7c7ae006b
Author: Tamar Christina 
Date:   Mon Apr 15 12:06:21 2024 +0100

middle-end: adjust loop upper bounds when peeling for gaps and early break 
[PR114403].

caused

FAIL: gcc.dg/vect/vect-early-break_124-pr114403.c execution test
FAIL: gcc.dg/vect/vect-early-break_124-pr114403.c -flto -ffat-lto-objects 
execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-9969/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_124-pr114403.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-early-break_124-pr114403.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)

[r15-124 Regression] FAIL: gcc.target/i386/pr70251.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

87e35da16df74cd1c4729a55d94e7bc592487f48 is the first bad commit
commit 87e35da16df74cd1c4729a55d94e7bc592487f48
Author: Richard Biener 
Date:   Thu May 2 13:55:15 2024 +0200

tree-optimization/114921 - _Float16 -> __bf16 isn't noop

caused

FAIL: gcc.target/i386/pr70251.c 1 blank line(s) in output
FAIL: gcc.target/i386/pr70251.c (internal compiler error: verify_gimple failed)
FAIL: gcc.target/i386/pr70251.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-124/usr 
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld 
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl 
--enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr70251.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr70251.c --target_board='unix{-m64\ 
-march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)