https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91982
Bug ID: 91982
Summary: gcc.target/aarch64/sve/clastb_*.c tests failing with
segfault
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: sje at gcc dot gnu.org
Target Milestone: ---
Target: aarch64
A number of gcc.target/aarch64/sve/clastb_* tests (1-8) are failing with
segfaults. This seems to have started around September 30, 2019.
One example:
% install/bin/gcc -O2 -ftree-vectorize -march=armv8.2-a+sve clastb_1.c
during GIMPLE pass: vect
clastb_1.c: In function 'condition_reduction':
clastb_1.c:9:1: internal compiler error: Segmentation fault
9 | condition_reduction (int *a, int min_v)
| ^~~~~~~~~~~~~~~~~~~
0xc0103f crash_signal
../../gcc/gcc/toplev.c:326
0x7f5118 dominated_by_p(cdi_direction, basic_block_def const*, basic_block_def
const*)
../../gcc/gcc/dominance.c:1118
0xe4dcdb vect_transform_stmt(_stmt_vec_info*, gimple_stmt_iterator*,
_slp_tree*, _slp_instance*)
../../gcc/gcc/tree-vect-stmts.c:10903
0xe5054f vect_transform_loop_stmt
../../gcc/gcc/tree-vect-loop.c:8351
0xe5a51f vect_transform_loop(_loop_vec_info*)
../../gcc/gcc/tree-vect-loop.c:8578
0xe7eda7 try_vectorize_loop_1
../../gcc/gcc/tree-vectorizer.c:983
0xe7f7d3 vectorize_loops()
../../gcc/gcc/tree-vectorizer.c:1115
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
