https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103321
Bug ID: 103321
Summary: [12 regression] ICE at tree-ssa.c:1211 after r12-5300
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:f98f373dd822b35c52356b753d528924e9f89678, r12-5300
I am seeing an ICE when building the spec2017 test case 445.gobmk
/home/seurer/gcc/git/install/gcc-test/bin/gcc -c -o engine/value_moves.o
-DSPEC_CPU -DNDEBUG -DHAVE_CONFIG_H -I. -I.. -I../include -I./include -m64 -O3
-mcpu=power8 -ffast-math -funroll-loops -fpeel-loops -fvect-cost-model
-mpopcntd -mrecip=rsqrt engine/value_moves.c
engine/value_moves.c: In function 'value_move_reasons':
engine/value_moves.c:3030:1: error: definition in block 38 does not dominate
use in block 37
3030 | }
| ^
for SSA_NAME: iftmp.54_199 in statement:
iftmp.54_143 = PHI <iftmp.54_199(37), _89(38)>
PHI argument
iftmp.54_199
for PHI node
iftmp.54_143 = PHI <iftmp.54_199(37), _89(38)>
during GIMPLE pass: phiopt
engine/value_moves.c:3030:1: internal compiler error: verify_ssa failed
0x10f15523 verify_ssa(bool, bool)
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa.c:1211
0x10a6a65f execute_function_todo
/home/seurer/gcc/git/gcc-test/gcc/passes.c:2049
0x10a6b8eb do_per_function
/home/seurer/gcc/git/gcc-test/gcc/passes.c:1687
0x10a6bb0b execute_todo
/home/seurer/gcc/git/gcc-test/gcc/passes.c:2096
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.
specmake: *** [engine/value_moves.o] Error 1
Error with make 'specmake -j 1 build': check file
'/home/seurer/gcc/cpu2006/benchspec/CPU2006/445.gobmk/build/build_base_ppc64.0000/make.err'
Command returned exit code 2
Error with make!
*** Error building 445.gobmk
commit f98f373dd822b35c52356b753d528924e9f89678
Author: Richard Biener <rguent...@suse.de>
Date: Mon Nov 15 15:19:36 2021 +0100
tree-optimization/102880 - make PHI-OPT recognize more CFGs
