https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99249
Bug ID: 99249
Summary: SVE: ICE in aarch64_expand_sve_const_vector (during
RTL pass: early_remat)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: acoplan at gcc dot gnu.org
Target Milestone: ---
The following fails:
$ cat test.cc
#include <arm_sve.h>
extern char b[];
int x;
void f() {
while (x) {
x = svaddv(
svnot_z(svnot_z(svptrue_pat_b8(SV_VL6),
svmov_z(svptrue_pat_b8(SV_VL1),
svptrue_pat_b16(SV_VL3))),
svptrue_pat_b64(SV_VL2)),
svdup_s32(8193));
for (int j = x; j; j++)
b[j] = 0;
}
}
$ aarch64-linux-gnu-gcc -c -march=armv8.2-a+sve -Os test.cc
during RTL pass: early_remat
test.cc: In function ‘void f()’:
test.cc:15:1: internal compiler error: in aarch64_expand_sve_const_vector, at
config/aarch64/aarch64.c:4956
15 | }
| ^
0x14ffb66 aarch64_expand_sve_const_vector
/home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64.c:4956
0x15019b1 aarch64_expand_mov_immediate(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64.c:5395
0x19afb10 gen_movvnx16qi(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64-sve.md:662
0xcab8e6 rtx_insn* insn_gen_fn::operator()<rtx_def*, rtx_def*>(rtx_def*,
rtx_def*) const
/home/alecop01/toolchain/src/gcc/gcc/recog.h:407
0xcab8e6 emit_move_insn_1(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:3766
0xcabe37 emit_move_insn(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:3936
0xc7e694 force_reg(machine_mode, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/explow.c:677
0x14ffc4f aarch64_expand_sve_const_vector
/home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64.c:4964
0x15019b1 aarch64_expand_mov_immediate(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64.c:5395
0x19afb10 gen_movvnx16qi(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64-sve.md:662
0xcab8e6 rtx_insn* insn_gen_fn::operator()<rtx_def*, rtx_def*>(rtx_def*,
rtx_def*) const
/home/alecop01/toolchain/src/gcc/gcc/recog.h:407
0xcab8e6 emit_move_insn_1(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:3766
0xcabe37 emit_move_insn(rtx_def*, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:3936
0xc7e614 copy_to_mode_reg(machine_mode, rtx_def*)
/home/alecop01/toolchain/src/gcc/gcc/explow.c:653
0xf69b69 maybe_legitimize_operand
/home/alecop01/toolchain/src/gcc/gcc/optabs.c:7626
0xf69b69 maybe_legitimize_operands(insn_code, unsigned int, unsigned int,
expand_operand*)
/home/alecop01/toolchain/src/gcc/gcc/optabs.c:7758
0xf69e52 maybe_gen_insn(insn_code, unsigned int, expand_operand*)
/home/alecop01/toolchain/src/gcc/gcc/optabs.c:7777
0xf6a06e maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/home/alecop01/toolchain/src/gcc/gcc/optabs.c:7820
0xf69605 expand_insn(insn_code, unsigned int, expand_operand*)
/home/alecop01/toolchain/src/gcc/gcc/optabs.c:7851
0x14d45d2 aarch64_sve_emit_int_cmp
/home/alecop01/toolchain/src/gcc/gcc/config/aarch64/aarch64.c:3920
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.
