https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97761
Bug ID: 97761
Summary: [11 Regression] ICE in vectorizable_live_operation, at
tree-vect-loop.c:8689
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: powerpc-*-linux-gnu
Created attachment 49522
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49522&action=edit
Testcase
gfortran-11.0.0-alpha20201108 snapshot
(g:b642fca1c31b2e2175e0860daf32b4ee0d918085) ICEs when compiling the attached
testcase w/ -mvsx -O1 -ftree-slp-vectorize -fvect-cost-model=unlimited:
% powerpc-e300c3-linux-gnu-gfortran-11.0.0 -mvsx -O1 -ftree-slp-vectorize
-fvect-cost-model=unlimited -c ar6dubil.f90
during GIMPLE pass: slp
ar6dubil.f90:11:15:
11 | subroutine ni (ps, bf)
| ^
internal compiler error: in vectorizable_live_operation, at
tree-vect-loop.c:8689
0x6f1f2c vectorizable_live_operation(vec_info*, _stmt_vec_info*,
gimple_stmt_iterator*, _slp_tree*, _slp_instance*, int, bool,
vec<stmt_info_for_cost, va_heap, vl_ptr>*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-loop.c:8689
0x10b8087 can_vectorize_live_stmts
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-stmts.c:10510
0x10df928 vect_transform_stmt(vec_info*, _stmt_vec_info*,
gimple_stmt_iterator*, _slp_tree*, _slp_instance*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-stmts.c:10894
0x1111726 vect_schedule_slp_node
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:5437
0x111d0bc vect_schedule_scc
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:5599
0x111ce2f vect_schedule_scc
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:5580
0x111ce2f vect_schedule_scc
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:5580
0x111ce2f vect_schedule_scc
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:5580
0x111d40c vect_schedule_slp(vec_info*, vec<_slp_instance*, va_heap, vl_ptr>)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:5715
0x111ebba vect_slp_region
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:4264
0x111ebba vect_slp_bbs
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:4374
0x111fa9c vect_slp_function(function*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vect-slp.c:4460
0x112208b execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201108/work/gcc-11-20201108/gcc/tree-vectorizer.c:1437
