https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80644
Bug ID: 80644
Summary: [8 regression] many test cases fails starting with
247622
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
All these tests fail now on powerpc64 LE. From the details it looks like they
all are triggering overflow warnings from -Wstringop-overflow=.
> FAIL: gcc.dg/pr78138.c (test for warnings, line 23)
> FAIL: gcc.dg/pr78138.c (test for excess errors)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 25)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 30)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 35)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 40)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 45)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 52)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 59)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 66)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 73)
> FAIL: gcc.dg/pr79214.c (test for warnings, line 80)
> FAIL: gcc.dg/pr79214.c (test for excess errors)
> FAIL: gcc.dg/pr79222.c (test for warnings, line 12)
> FAIL: gcc.dg/pr79222.c (test for excess errors)
> FAIL: gcc.dg/pr79223.c (test for warnings, line 26)
> FAIL: gcc.dg/pr79223.c (test for warnings, line 31)
> FAIL: gcc.dg/pr79223.c (test for warnings, line 36)
> FAIL: gcc.dg/pr79223.c (test for excess errors)
> FAIL: gcc.dg/tree-ssa/builtins-folding-gimple-ub.c (test for excess errors)
> FAIL: gfortran.dg/elemental_subroutine_3.f90 -O1 (test for excess errors)
> FAIL: gfortran.dg/elemental_subroutine_3.f90 -O2 (test for excess errors)
> FAIL: gfortran.dg/elemental_subroutine_3.f90 -O3 -fomit-frame-pointer
> -funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess
> errors)
> FAIL: gfortran.dg/elemental_subroutine_3.f90 -O3 -g (test for excess
> errors)
> FAIL: gfortran.dg/elemental_subroutine_3.f90 -Os (test for excess errors)
> FAIL: gfortran.dg/mvbits_7.f90 -O0 (test for warnings, line 28)
Some details below
spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -Wformat-overflow -S
-o pr78138.s
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c: In function 'f':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c:15:3: warning:
'strcpy': writing between 6 and 7 bytes into a region of size 5 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c: In function 'g':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c:23:3: warning:
'memcpy': writing between 7 and 32 bytes into a region of size 5 overflows the
destination [-Wstringop-overflow=]
output is:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c: In function 'f':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c:15:3: warning:
'strcpy': writing between 6 and 7 bytes into a region of size 5 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c: In function 'g':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c:23:3: warning:
'memcpy': writing between 7 and 32 bytes into a region of size 5 overflows the
destination [-Wstringop-overflow=]
PASS: gcc.dg/pr78138.c (test for warnings, line 15)
FAIL: gcc.dg/pr78138.c (test for warnings, line 23)
FAIL: gcc.dg/pr78138.c (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr78138.c:23:3: warning:
'memcpy': writing between 7 and 32 bytes into a region of size 5 overflows the
destination [-Wstringop-overflow=]
spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -S -o pr79214.s
In file included from
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:6:0:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_bzero':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:25:3: warning:
'__builtin_bzero': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_memcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:30:3: warning:
'__builtin_memcpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_memmove':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:35:3: warning:
'__builtin_memmove': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_mempcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:40:3: warning:
'__builtin_mempcpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_memset':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:45:3: warning:
'__builtin_memset': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strcat':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:52:3: warning:
'__builtin_strcat': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_stpcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:59:10: warning:
'__builtin_stpcpy': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_stpncpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:66:10: warning:
'__builtin_stpncpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:73:10: warning:
'__builtin_strcpy': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strncpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:80:10: warning:
'__builtin_strncpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strncat':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:87:10: warning:
'__builtin_strncat': specified bound between 4 and 18446744073709551615 exceeds
destination size 3 [-Wstringop-overflow=]
output is:
In file included from
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:6:0:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_bzero':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:25:3: warning:
'__builtin_bzero': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_memcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:30:3: warning:
'__builtin_memcpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_memmove':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:35:3: warning:
'__builtin_memmove': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_mempcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:40:3: warning:
'__builtin_mempcpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_memset':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:45:3: warning:
'__builtin_memset': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strcat':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:52:3: warning:
'__builtin_strcat': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_stpcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:59:10: warning:
'__builtin_stpcpy': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_stpncpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:66:10: warning:
'__builtin_stpncpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:73:10: warning:
'__builtin_strcpy': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strncpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:80:10: warning:
'__builtin_strncpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c: In function
'test_strncat':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:87:10: warning:
'__builtin_strncat': specified bound between 4 and 18446744073709551615 exceeds
destination size 3 [-Wstringop-overflow=]
FAIL: gcc.dg/pr79214.c (test for warnings, line 25)
FAIL: gcc.dg/pr79214.c (test for warnings, line 30)
FAIL: gcc.dg/pr79214.c (test for warnings, line 35)
FAIL: gcc.dg/pr79214.c (test for warnings, line 40)
FAIL: gcc.dg/pr79214.c (test for warnings, line 45)
FAIL: gcc.dg/pr79214.c (test for warnings, line 52)
FAIL: gcc.dg/pr79214.c (test for warnings, line 59)
FAIL: gcc.dg/pr79214.c (test for warnings, line 66)
FAIL: gcc.dg/pr79214.c (test for warnings, line 73)
FAIL: gcc.dg/pr79214.c (test for warnings, line 80)
PASS: gcc.dg/pr79214.c (test for warnings, line 87)
FAIL: gcc.dg/pr79214.c (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:25:3: warning:
'__builtin_bzero': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:30:3: warning:
'__builtin_memcpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:35:3: warning:
'__builtin_memmove': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:40:3: warning:
'__builtin_mempcpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:45:3: warning:
'__builtin_memset': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:52:3: warning:
'__builtin_strcat': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:59:10: warning:
'__builtin_stpcpy': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:66:10: warning:
'__builtin_stpncpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:73:10: warning:
'__builtin_strcpy': writing between 4 and 5 bytes into a region of size 3
overflows the destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79214.c:80:10: warning:
'__builtin_strncpy': writing 4 or more bytes into a region of size 3 overflows
the destination [-Wstringop-overflow=]
Executing on host: /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79222.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -S -o pr79222.s
(timeout = 300)
spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79222.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -S -o pr79222.s
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79222.c: In function 'f':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79222.c:12:10: warning:
'stpcpy': writing between 9 and 11 bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
output is:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79222.c: In function 'f':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79222.c:12:10: warning:
'stpcpy': writing between 9 and 11 bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
FAIL: gcc.dg/pr79222.c (test for warnings, line 12)
FAIL: gcc.dg/pr79222.c (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79222.c:12:10: warning:
'stpcpy': writing between 9 and 11 bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
Executing on host: /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -ansi -pedantic-errors
-O2 -Wall -std=gnu99 -S -o pr79223.s (timeout = 300)
spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -ansi -pedantic-errors
-O2 -Wall -std=gnu99 -S -o pr79223.s
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c: In function
'test_memcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:26:3: warning:
'memcpy': writing 4 or more bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c: In function
'test_mempcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:31:3: warning:
'mempcpy': writing 4 or more bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c: In function
'test_memmove':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:36:3: warning:
'memmove': writing 4 or more bytes into a region of size 2 overflows the
destination [-Wstringop-overflow=]
output is:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c: In function
'test_memcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:26:3: warning:
'memcpy': writing 4 or more bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c: In function
'test_mempcpy':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:31:3: warning:
'mempcpy': writing 4 or more bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c: In function
'test_memmove':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:36:3: warning:
'memmove': writing 4 or more bytes into a region of size 2 overflows the
destination [-Wstringop-overflow=]
FAIL: gcc.dg/pr79223.c (test for warnings, line 26)
FAIL: gcc.dg/pr79223.c (test for warnings, line 31)
FAIL: gcc.dg/pr79223.c (test for warnings, line 36)
FAIL: gcc.dg/pr79223.c (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:26:3: warning:
'memcpy': writing 4 or more bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:31:3: warning:
'mempcpy': writing 4 or more bytes into a region of size 3 overflows the
destination [-Wstringop-overflow=]
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr79223.c:36:3: warning:
'memmove': writing 4 or more bytes into a region of size 2 overflows the
destination [-Wstringop-overflow=]
