https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103231
Bug ID: 103231
Summary: ICE (nondeterministic) on valid code at -O1 on
x86_64-linux-gnu: 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: ---
Created attachment 51788
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51788&action=edit
reproducer
This one is flaky and very difficult to reduce (likely due to memory errors).
The reproducer is still quite large and hairy.
[658] % 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/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --disable-bootstrap
--prefix=/local/suz-local/software/local/gcc-trunk --enable-languages=c,c++
--disable-werror --enable-multilib --with-system-zlib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20211114 (experimental) [master r12-5239-ga8029add306] (GCC)
[659] %
[659] % gcctk -O0 -w small.c
[660] %
[660] % gcctk -O1 -w small.c
[661] % gcctk -O1 -w small.c
[662] % gcctk -O1 -w small.c
gcctk: internal compiler error: Segmentation fault signal terminated program
cc1
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
[663] %
