https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105012
Bug ID: 105012
Summary: [12 Regression] wrf from SPECCPU2017 ICEs during LTO
linking
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: tnfchris at gcc dot gnu.org
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Target: aarch64-*
wrf when linking with -mcpu=native -Ofast -fomit-frame-pointer -flto=auto
--param ipa-cp-eval-threshold=1 --param ipa-cp-unit-growth=80 (have not reduced
flags yet) fails during final link with:
during GIMPLE pass: ifcvt
module_cam_mp_ndrop.fppized.f90: In function 'dropmixnuc':
module_cam_mp_ndrop.fppized.f90:33:27: internal compiler error: Segmentation
fault
33 | subroutine dropmixnuc(lchnk, ncol, ncldwtr,tendnd, temp,omega, &
| ^
0xb9bee3 crash_signal
/data/tamar/ci/work/5c94c4ced6ebfcd0/gcc/toplev.cc:322
0xc93978 first_imm_use_stmt
/data/tamar/ci/work/5c94c4ced6ebfcd0/gcc/ssa-iterators.h:932
0xc93978 dse_classify_store(ao_ref*, gimple*, bool, simple_bitmap_def*, bool*,
tree_node*)
/data/tamar/ci/work/5c94c4ced6ebfcd0/gcc/tree-ssa-dse.cc:954
0xbf9263 ifcvt_local_dce
/data/tamar/ci/work/5c94c4ced6ebfcd0/gcc/tree-if-conv.cc:3154
0xbfe1b7 tree_if_conversion(loop*, vec<gimple*, va_heap, vl_ptr>*)
/data/tamar/ci/work/5c94c4ced6ebfcd0/gcc/tree-if-conv.cc:3383
0xc000af execute
/data/tamar/ci/work/5c94c4ced6ebfcd0/gcc/tree-if-conv.cc:3461
0xc000af execute
/data/tamar/ci/work/5c94c4ced6ebfcd0/gcc/tree-if-conv.cc:3449
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.
make[1]: *** [/opt/buildAgent/temp/buildTmp/ccGjHi3g.ltrans8.ltrans.o] Error 1
This has started somewhere between g:79e210f0c8e1fad875333e93b5ae2fe9b4879b7a
and g:9fc8f278ebebc57537dc0cb9d33e36d932be0bc3
Sorry for the lack of a small reproducer, still need to learn how to reduce LTO
cases properly..
Note that this range does contain a fix for the threader failure for wrf in
PR102943 but not sure if related.
