https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88182
Bug ID: 88182
Summary: [9 Regression] ICE in vectorizable_reduction, at
tree-vect-loop.c:6465
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, openmp
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
g++-9.0.0-alpha20181118 snapshot (r266255) ICEs when compiling
gcc/testsuite/c-c++-common/gomp/pr60823-2.c w/ -O1 (-O2) -fopenmp
-ftree-loop-if-convert -fno-ssa-phiopt:
% g++-9.0.0-alpha20181118 -O1 -fopenmp -ftree-loop-if-convert -fno-ssa-phiopt
-c gcc/testsuite/c-c++-common/gomp/pr60823-2.c
during GIMPLE pass: vect
gcc/testsuite/c-c++-common/gomp/pr60823-2.c: In function 'int foo(double,
double)':
gcc/testsuite/c-c++-common/gomp/pr60823-2.c:8:1: internal compiler error: in
vectorizable_reduction, at tree-vect-loop.c:6465
8 | foo (double c1, double c2)
| ^~~
0x76cde7 vectorizable_reduction(_stmt_vec_info*, gimple_stmt_iterator*,
_stmt_vec_info**, _slp_tree*, _slp_instance*, vec<stmt_info_for_cost, va_heap,
vl_ptr>*)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181118/work/gcc-9-20181118/gcc/tree-vect-loop.c:6465
0x11398ec vect_analyze_stmt(_stmt_vec_info*, bool*, _slp_tree*, _slp_instance*,
vec<stmt_info_for_cost, va_heap, vl_ptr>*)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181118/work/gcc-9-20181118/gcc/tree-vect-stmts.c:9539
0x114e6d0 vect_analyze_loop_operations
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181118/work/gcc-9-20181118/gcc/tree-vect-loop.c:1576
0x114fd4a vect_analyze_loop_2
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181118/work/gcc-9-20181118/gcc/tree-vect-loop.c:1971
0x114fd4a vect_analyze_loop(loop*, _loop_vec_info*, vec_info_shared*)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181118/work/gcc-9-20181118/gcc/tree-vect-loop.c:2270
0x116c358 try_vectorize_loop_1
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181118/work/gcc-9-20181118/gcc/tree-vectorizer.c:873
0x116d199 vectorize_loops()
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181118/work/gcc-9-20181118/gcc/tree-vectorizer.c:1101
