https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98914
Bug ID: 98914
Summary: [11 Regression] ICE in rs6000_expand_vector_set, at
config/rs6000/rs6000.c:7198
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: powerpc-*-linux-gnu
gcc-11.0.0-alpha20210131 snapshot (g:98342bdd2b7085c9e7e4c9fbb07c3917a0013515)
ICEs when compiling the following testcase, reduced from
gcc/testsuite/gcc.target/powerpc/pr79251-run.p8.c, w/ -mvsx -Og:
void
foo (int __attribute__ ((altivec (vector__))) v)
{
for (int k = 0; k < 1; ++k)
v[k] = 0;
}
% powerpc-e300c3-linux-gnu-gcc-11.0.0 -mvsx -Og -c yo6irbnt.c
during RTL pass: expand
yo6irbnt.c: In function 'foo':
yo6irbnt.c:5:10: internal compiler error: in rs6000_expand_vector_set, at
config/rs6000/rs6000.c:7198
5 | v[k] = 0;
| ~~~~~^~~
0x731be0 rs6000_expand_vector_set(rtx_def*, rtx_def*, rtx_def*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/config/rs6000/rs6000.c:7198
0x157be60 ???
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/config/rs6000/vector.md:1251
0xceb038 maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/optabs.c:7820
0xb83bfd expand_vec_set_optab_fn
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/internal-fn.c:2871
0xb83bfd expand_VEC_SET
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/internal-fn.def:148
0x954357 expand_call_stmt
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/cfgexpand.c:2748
0x954357 expand_gimple_stmt_1
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/cfgexpand.c:3843
0x954357 expand_gimple_stmt
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/cfgexpand.c:4007
0x95a01a expand_gimple_basic_block
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/cfgexpand.c:6044
0x95bb5f execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20210131/work/gcc-11-20210131/gcc/cfgexpand.c:6728
