https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81848
Bug ID: 81848
Summary: Segmentation fault at
gimple-ssa-strength-reduction.c:2356
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: jamborm at gcc dot gnu.org
Target Milestone: ---
Created attachment 41988
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41988&action=edit
Testcase
Starting with r250416, spec 2017 benchmark 521.wrf_r started to ICE at
-Ofast optimization level. I have extracted the attached (slightly
minimized) function from it which reproduces the ICE:
$ /home/mjambor/gcc/bisect/inst/bin/gfortran -S -Ofast bug.f90
during GIMPLE pass: slsr
bug.f90:4:0:
integer function ice_in_me( pcols , pver , ncol , fixed_ubc , mw
, ubc_mmr , &
internal compiler error: Segmentation fault
0xf4c4fb crash_signal
/home/mjambor/gcc/bisect/src/gcc/toplev.c:338
0x190bdf4 create_phi_basis
/home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:2356
0x190bfa0 create_phi_basis
/home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:2386
0x190bfa0 create_phi_basis
/home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:2386
0x190bfa0 create_phi_basis
/home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:2386
0x190f7a5 replace_profitable_candidates
/home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:3670
0x190fa9e analyze_candidates_and_replace
/home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:3769
0x190fc82 execute
/home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:3843
Please submit a full bug report,
