https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100414
Bug ID: 100414
Summary: [12 Regression] ICE: in dominated_by_p, at
dominance.c:1120 with -O -fno-tree-dce -fno-tree-dse
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Created attachment 50748
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50748&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -fno-tree-dce -fno-tree-dse testcase.c
during GIMPLE pass: phiopt
testcase.c: In function 'foo0':
testcase.c:3:1: internal compiler error: in dominated_by_p, at dominance.c:1120
3 | foo (void)
| ^~~~
0x6511a8 dominated_by_p(cdi_direction, basic_block_def const*, basic_block_def
const*)
/repo/gcc-trunk/gcc/dominance.c:1120
0x11f5f0b factor_out_conditional_conversion
/repo/gcc-trunk/gcc/tree-ssa-phiopt.c:507
0x11f5f0b tree_ssa_phiopt_worker
/repo/gcc-trunk/gcc/tree-ssa-phiopt.c:327
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
