https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111699
Bug ID: 111699
Summary: [14 Regression] ICE: SIGSEGV: infinite recursion in
fold_build3_loc/fold_ternary_loc/generic_simplify_VEC_
COND_EXPR
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: aarch64-unknown-linux-gnu
Created attachment 56054
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56054&action=edit
reduced testcase
Compiler output:
$ aarch64-unknown-linux-gnu-gcc testcase.c -wrapper gdb,-q,--args
Reading symbols from
/repo/gcc-trunk/binary-trunk-20231005001818-gbf2e66e3ee2-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/14.0.0/cc1...
(gdb) r
Starting program:
/repo/gcc-trunk/binary-trunk-20231005001818-gbf2e66e3ee2-checking-yes-rtl-df-extra-aarch64/libexec/gcc/aarch64-unknown-linux-gnu/14.0.0/cc1
-quiet -iprefix
/repo/gcc-trunk/binary-trunk-20231005001818-gbf2e66e3ee2-checking-yes-rtl-df-extra-aarch64/bin/../lib/gcc/aarch64-unknown-linux-gnu/14.0.0/
testcase.c -quiet -dumpdir a- -dumpbase testcase.c -dumpbase-ext .c
-mlittle-endian -mabi=lp64 -o /tmp/cc6LuKcc.s
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
const_binop (code=BIT_AND_EXPR, arg1=0x7ffff756a7c8, arg2=0x7ffff756a870) at
/repo/gcc-trunk/gcc/fold-const.cc:1358
1358 STRIP_NOPS (arg1);
(gdb) bt
#0 const_binop (code=BIT_AND_EXPR, arg1=0x7ffff756a7c8, arg2=0x7ffff756a870)
at /repo/gcc-trunk/gcc/fold-const.cc:1358
#1 0x0000000000ea0ee6 in const_binop (code=BIT_AND_EXPR, arg1=0x7ffff7212b70,
arg2=0x7ffff7213360) at /repo/gcc-trunk/gcc/fold-const.cc:1688
#2 0x0000000000e94ff1 in fold_binary_loc (loc=2147483651, code=<optimized
out>, type=0x7ffff7556498, op0=0x7ffff7212b70, op1=0x7ffff7213360) at
/repo/gcc-trunk/gcc/fold-const.cc:11129
#3 0x0000000000e9c7fb in fold_build2_loc (loc=2147483651, code=BIT_AND_EXPR,
type=0x7ffff7556498, op0=0x7ffff7212b70, op1=0x7ffff7213360) at
/repo/gcc-trunk/gcc/fold-const.cc:14040
#4 0x0000000000eae86d in fold_binary_op_with_conditional_arg (loc=2147483651,
code=BIT_AND_EXPR, type=0x7ffff7556498, op0=<optimized out>, op1=<optimized
out>, cond=<optimized out>, arg=<optimized out>,
cond_first_p=1) at /repo/gcc-trunk/gcc/fold-const.cc:7336
#5 0x0000000000e95062 in fold_binary_loc (loc=2147483651, code=<optimized
out>, type=0x7ffff7556498, op0=0x7ffff7557640, op1=0x7ffff7213360) at
/repo/gcc-trunk/gcc/fold-const.cc:11219
#6 0x0000000000e9c7fb in fold_build2_loc (loc=loc@entry=2147483651,
code=code@entry=BIT_AND_EXPR, type=0x7ffff7556498,
op0=op0@entry=0x7ffff7557640, op1=op1@entry=0x7ffff7213360)
at /repo/gcc-trunk/gcc/fold-const.cc:14040
#7 0x00000000021f9843 in generic_simplify_VEC_COND_EXPR (loc=2147483651,
code=<optimized out>, type=0x7ffff7556348, _p0=0x7ffff7211bd0,
_p1=0x7ffff756a7e0, _p2=0x7ffff756a7f8) at generic-match-2.cc:8731
#8 0x0000000000eabf3b in fold_ternary_loc (loc=2147483651, code=VEC_COND_EXPR,
type=0x7ffff7556348, op0=0x7ffff7211bd0, op1=0x7ffff756a7e0,
op2=0x7ffff756a7f8) at /repo/gcc-trunk/gcc/fold-const.cc:13028
#9 0x0000000000eadeb8 in fold_build3_loc (loc=loc@entry=2147483651,
code=code@entry=VEC_COND_EXPR, type=type@entry=0x7ffff7556348,
op0=0x7ffff7211bd0, op1=op1@entry=0x7ffff756a7e0,
op2=op2@entry=0x7ffff756a7f8) at /repo/gcc-trunk/gcc/fold-const.cc:14100
#10 0x00000000021f985e in generic_simplify_VEC_COND_EXPR (loc=2147483651,
code=<optimized out>, type=0x7ffff7556348, _p0=0x7ffff7211ba0,
_p1=0x7ffff756a7e0, _p2=0x7ffff756a7f8) at generic-match-2.cc:8739
#11 0x0000000000eabf3b in fold_ternary_loc (loc=2147483651, code=VEC_COND_EXPR,
type=0x7ffff7556348, op0=0x7ffff7211ba0, op1=0x7ffff756a7e0,
op2=0x7ffff756a7f8) at /repo/gcc-trunk/gcc/fold-const.cc:13028
#12 0x0000000000eadeb8 in fold_build3_loc (loc=loc@entry=2147483651,
code=code@entry=VEC_COND_EXPR, type=type@entry=0x7ffff7556348,
op0=0x7ffff7211ba0, op1=op1@entry=0x7ffff756a7e0,
op2=op2@entry=0x7ffff756a7f8) at /repo/gcc-trunk/gcc/fold-const.cc:14100
...
$ aarch64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-13-branch/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-13-branch/binary-13-branch-20231001002158-gf8353d6a7cd-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/13.2.1/lto-wrapper
Target: aarch64-unknown-linux-gnu
Configured with: /repo/gcc-13-branch//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl
--with-sysroot=/usr/aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu
--with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld
--with-as=/usr/bin/aarch64-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-13-branch//binary-13-branch-20231001002158-gf8353d6a7cd-checking-yes-rtl-df-extra-aarch64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.2.1 20231001 (GCC)
