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From: "acoplan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/97141] New: [10/11 Regression] aarch64, SVE: ICE in decompose, at rtl.h (during expand) since r10-4676-g9c437a108a
Date: Mon, 21 Sep 2020 10:48:07 +0000 [thread overview]
Message-ID: <bug-97141-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97141
Bug ID: 97141
Summary: [10/11 Regression] aarch64, SVE: ICE in decompose, at
rtl.h (during expand) since r10-4676-g9c437a108a
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: ---
For the following testcase:
int a;
short b, c;
short d(short e, short f) { return e + f; }
void g(void) {
a = -9;
for (; a != 51; a = d(a, 5))
b |= c;
}
AArch64 GCC ICEs at -O3 -march=armv8.2-a+sve since
r10-4676-g9c437a108a14b9bdc44659c131b0da944e5ffeab:
commit 9c437a108a14b9bdc44659c131b0da944e5ffeab
Author: Richard Sandiford <richard.sandiford@arm.com>
Date: Thu Nov 14 15:31:25 2019
Vectorise conversions between differently-sized integer vectors
To reproduce:
$ aarch64-none-elf-gcc -c -S -O3 -march=armv8.2-a+sve test.c
during RTL pass: expand
test.c: In function 'g':
test.c:4:6: internal compiler error: in decompose, at rtl.h:2296
4 | void g(void) {
| ^
0xd05b28 wi::int_traits<std::pair<rtx_def*, machine_mode> >::decompose(long*,
unsigned int, std::pair<rtx_def*, machine_mode> const&)
/home/alecop01/toolchain/src/gcc/gcc/rtl.h:2296
0xd05b28 wide_int_ref_storage<false,
false>::wide_int_ref_storage<std::pair<rtx_def*, machine_mode>
>(std::pair<rtx_def*, machine_mode> const&, unsigned int)
/home/alecop01/toolchain/src/gcc/gcc/wide-int.h:1034
0xd05b28 generic_wide_int<wide_int_ref_storage<false, false>
>::generic_wide_int<std::pair<rtx_def*, machine_mode> >(std::pair<rtx_def*,
machine_mode> const&, unsigned int)
/home/alecop01/toolchain/src/gcc/gcc/wide-int.h:790
0xd05b28 wi::binary_traits<std::pair<rtx_def*, machine_mode>,
std::pair<rtx_def*, machine_mode>, wi::int_traits<std::pair<rtx_def*,
machine_mode> >::precision_type, wi::int_traits<std::pair<rtx_def*,
machine_mode> >::precision_type>::result_type wi::sub<std::pair<rtx_def*,
machine_mode>, std::pair<rtx_def*, machine_mode> >(std::pair<rtx_def*,
machine_mode> const&, std::pair<rtx_def*, machine_mode> const&)
/home/alecop01/toolchain/src/gcc/gcc/wide-int.h:2510
0xd05b28 rtx_vector_builder::step(rtx_def*, rtx_def*) const
/home/alecop01/toolchain/src/gcc/gcc/rtx-vector-builder.h:122
0xd05d38 vector_builder<rtx_def*, machine_mode,
rtx_vector_builder>::elt(unsigned int) const
/home/alecop01/toolchain/src/gcc/gcc/vector-builder.h:254
0xd059a8 rtx_vector_builder::build()
/home/alecop01/toolchain/src/gcc/gcc/rtx-vector-builder.c:73
0x9932f8 const_vector_from_tree
/home/alecop01/toolchain/src/gcc/gcc/expr.c:12790
0x9932f8 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:10349
0x998cfb expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
/home/alecop01/toolchain/src/gcc/gcc/expr.c:8480
0xe5d7a4 expand_expr
/home/alecop01/toolchain/src/gcc/gcc/expr.h:282
0xe5d7a4 insert_value_copy_on_edge
/home/alecop01/toolchain/src/gcc/gcc/tree-outof-ssa.c:349
0xe5d7a4 eliminate_phi
/home/alecop01/toolchain/src/gcc/gcc/tree-outof-ssa.c:785
0xe5d7a4 expand_phi_nodes(ssaexpand*)
/home/alecop01/toolchain/src/gcc/gcc/tree-outof-ssa.c:1024
0x85aa3c execute
/home/alecop01/toolchain/src/gcc/gcc/cfgexpand.c:6553
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.
next reply other threads:[~2020-09-21 10:48 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-21 10:48 acoplan at gcc dot gnu.org [this message]
2020-09-21 11:29 ` [Bug target/97141] " rguenth at gcc dot gnu.org
2020-12-08 14:39 ` akrl at gcc dot gnu.org
2020-12-16 14:10 ` acoplan at gcc dot gnu.org
2021-01-14 9:21 ` rguenth at gcc dot gnu.org
2021-01-14 9:21 ` rguenth at gcc dot gnu.org
2021-03-30 11:05 ` rsandifo at gcc dot gnu.org
2021-03-31 18:34 ` cvs-commit at gcc dot gnu.org
2021-03-31 20:37 ` [Bug target/97141] [10 " rsandifo at gcc dot gnu.org
2021-03-31 20:38 ` rsandifo at gcc dot gnu.org
2021-04-08 12:02 ` rguenth at gcc dot gnu.org
2021-04-23 9:10 ` cvs-commit at gcc dot gnu.org
2021-04-23 9:14 ` rsandifo at gcc dot gnu.org
2021-12-12 13:18 ` pinskia at gcc dot gnu.org
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