https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99924
Bug ID: 99924
Summary: ICE in vect_schedule_slp_node, at tree-vect-slp.c:6040
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: aarch64-linux-gnu
gfortran-11.0.1-alpha20210404 snapshot
(g:c3d3bb0f03dbd02512ab46979088ee8e22520c24) ICEs when compiling the following
testcase w/ -march=armv8.3-a -O1 -ftree-slp-vectorize
-fvect-cost-model=unlimited:
subroutine cunhj (tfn, asum, bsum)
implicit none
complex :: up, tfn, asum, bsum
real :: ar
up = tfn * ar
bsum = up + ar
asum = up + asum
return
end subroutine cunhj
% aarch64-linux-gnu-gfortran-11.0.1 -march=armv8.3-a -O1 -ftree-slp-vectorize
-fvect-cost-model=unlimited -c ufhzvqzb.f90
during GIMPLE pass: slp
ufhzvqzb.f90:1:16:
1 | subroutine cunhj (tfn, asum, bsum)
| ^
internal compiler error: in vect_schedule_slp_node, at tree-vect-slp.c:6040
0x7c377c vect_schedule_slp_node
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:6040
0x123a4fc vect_schedule_scc
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:6355
0x123a26f vect_schedule_scc
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:6336
0x123a26f vect_schedule_scc
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:6336
0x123a26f vect_schedule_scc
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:6336
0x123a26f vect_schedule_scc
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:6336
0x123ab5f vect_schedule_slp(vec_info*, vec<_slp_instance*, va_heap, vl_ptr>)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:6471
0x123c4db vect_slp_region
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:4985
0x123c4db vect_slp_bbs
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:5095
0x123db1c vect_slp_function(function*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vect-slp.c:5181
0x12444fa execute
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210404/work/gcc-11-20210404/gcc/tree-vectorizer.c:1450
