https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97405
Bug ID: 97405
Summary: ICE in get_or_alloc_expr_for in code hoisting with SVE
intrinsics
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ktkachov at gcc dot gnu.org
Target Milestone: ---
Target: aarch64
The following ICEs:
#include "arm_sve.h"
void
a (svuint8x3_t b, unsigned char *p, int c) {
if (c)
svst1_u8(svptrue_pat_b8(SV_VL16), p, svget3_u8(b, 1));
else
svst1_u8(svwhilelt_b8(6, 6), p, svget3_u8(b, 1));
}
with -O2 -march=armv8.2-a+sve on aarch64 with both GCC 10 and 11 branches
during GIMPLE pass: pre
sveice.c: In function 'a':
sveice.c:4:1: internal compiler error: in get_or_alloc_expr_for, at
tree-ssa-pre.c:1098
4 | a (svuint8x3_t b, unsigned char *p, int c) {
| ^
0xf3a0e9 get_or_alloc_expr_for
$SRC/gcc/tree-ssa-pre.c:1098
0xf3a0e9 find_or_generate_expression
$SRC/gcc/tree-ssa-pre.c:2693
0xf3aadd create_component_ref_by_pieces_1
$SRC/gcc/tree-ssa-pre.c:2613
0xf393fc create_component_ref_by_pieces
$SRC/gcc/tree-ssa-pre.c:2681
0xf393fc create_expression_by_pieces
$SRC/gcc/tree-ssa-pre.c:2830
0xf3da24 do_hoist_insertion
$SRC/gcc/tree-ssa-pre.c:3598
0xf3da24 insert
$SRC/gcc/tree-ssa-pre.c:3685
0xf3da24 execute
$SRC/gcc/tree-ssa-pre.c:4235
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.
