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* [Bug tree-optimization/112333] New: ICE on valid code at -O2 and -O3: Segmentation fault
@ 2023-11-01 11:26 zhendong.su at inf dot ethz.ch
2023-11-01 11:28 ` [Bug tree-optimization/112333] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: zhendong.su at inf dot ethz.ch @ 2023-11-01 11:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112333
Bug ID: 112333
Summary: ICE on valid code at -O2 and -O3: Segmentation fault
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zhendong.su at inf dot ethz.ch
Target Milestone: ---
It appears to be a recent regression.
Compiler Explorer: https://godbolt.org/z/z8fo6PvPh
With my local build, -g is needed to reproduce the ICE.
[512] % gcctk -v
Using built-in specs.
COLLECT_GCC=gcctk
COLLECT_LTO_WRAPPER=/local/suz-local/software/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --disable-bootstrap
--enable-checking=yes --prefix=/local/suz-local/software/local/gcc-trunk
--enable-sanitizers --enable-languages=c,c++ --disable-werror --enable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.0 20231101 (experimental) (GCC)
[513] %
[513] % gcctk -O3 -g small.c
during GIMPLE pass: ccp
small.c: In function ‘main’:
small.c:3:5: internal compiler error: Segmentation fault
3 | int main() {
| ^~~~
0x111dc93 crash_signal
../../gcc-trunk/gcc/toplev.cc:315
0x7f658ef6c08f ???
/build/glibc-BHL3KM/glibc-2.31/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0xd70a7b gsi_for_stmt(gimple*)
../../gcc-trunk/gcc/gimple-iterator.cc:615
0x13a2e72 insert_debug_temp_for_var_def(gimple_stmt_iterator*, tree_node*)
../../gcc-trunk/gcc/tree-ssa.cc:471
0x13a329a insert_debug_temps_for_defs(gimple_stmt_iterator*)
../../gcc-trunk/gcc/tree-ssa.cc:506
0xd707e4 gsi_remove(gimple_stmt_iterator*, bool)
../../gcc-trunk/gcc/gimple-iterator.cc:567
0x12624c2 simple_dce_from_worklist(bitmap_head*, bitmap_head*)
../../gcc-trunk/gcc/tree-ssa-dce.cc:2206
0x1314c1a substitute_and_fold_engine::substitute_and_fold(basic_block_def*)
../../gcc-trunk/gcc/tree-ssa-propagate.cc:1001
0x1242db8 ccp_finalize
../../gcc-trunk/gcc/tree-ssa-ccp.cc:1031
0x1243468 do_ssa_ccp
../../gcc-trunk/gcc/tree-ssa-ccp.cc:2980
0x1243468 execute
../../gcc-trunk/gcc/tree-ssa-ccp.cc:3025
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
[514] %
[514] % cat small.c
int printf(const char *, ...);
int a, b, c, d, e;
int main() {
long g;
int h = a, i;
if (e)
goto j;
i = 0;
for (; i < 1; i++) {
int k = d | c, l = ~a;
if (k) {
m:
e = 0;
j:
b = l;
if (c)
goto m;
}
}
if (a) {
while (a > 1)
a--;
g = a;
printf("%d", h);
}
while (a)
;
return 0;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/112333] ICE on valid code at -O2 and -O3: Segmentation fault
2023-11-01 11:26 [Bug tree-optimization/112333] New: ICE on valid code at -O2 and -O3: Segmentation fault zhendong.su at inf dot ethz.ch
@ 2023-11-01 11:28 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-01 11:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112333
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup.
*** This bug has been marked as a duplicate of bug 112320 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-11-01 11:26 [Bug tree-optimization/112333] New: ICE on valid code at -O2 and -O3: Segmentation fault zhendong.su at inf dot ethz.ch
2023-11-01 11:28 ` [Bug tree-optimization/112333] " pinskia at gcc dot gnu.org
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