https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100645
Bug ID: 100645
Summary: ICE in related_vector_mode, at stor-layout.c:537
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: powerpc-*-linux-gnu
gcc-12.0.0-alpha20210516 snapshot (g:4a322345cab10879162a2ddf659fb0f873ba0182)
ICEs when compiling the following testcase, extracted from
gcc/testsuite/gcc.target/i386/sse2-pr94680.c, w/ -maltivec:
typedef long long v2di __attribute__((vector_size(16)));
v2di
foo_v2di_l (v2di x)
{
return __builtin_shuffle ((v2di) { 0, 0 }, x, (v2di) {3, 0});
}
% powerpc-e300c3-linux-gnu-gcc-12.0.0 -maltivec -c z7u847kc.c
during RTL pass: expand
z7u847kc.c: In function 'foo_v2di_l':
z7u847kc.c:6:10: internal compiler error: in related_vector_mode, at
stor-layout.c:537
6 | return __builtin_shuffle ((v2di) { 0, 0 }, x, (v2di) {3, 0});
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x69756e related_vector_mode(machine_mode, scalar_mode, poly_int<1u, unsigned
long>)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-12.0.0_alpha20210516/work/gcc-12-20210516/gcc/stor-layout.c:537
0xd0b1e3 expand_vec_perm_const(machine_mode, rtx_def*, rtx_def*,
int_vector_builder<poly_int<1u, long> > const&, machine_mode, rtx_def*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-12.0.0_alpha20210516/work/gcc-12-20210516/gcc/optabs.c:6003
0xa8fc09 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-12.0.0_alpha20210516/work/gcc-12-20210516/gcc/expr.c:10033
0x964ee5 expand_gimple_stmt_1
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-12.0.0_alpha20210516/work/gcc-12-20210516/gcc/cfgexpand.c:3950
0x964ee5 expand_gimple_stmt
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-12.0.0_alpha20210516/work/gcc-12-20210516/gcc/cfgexpand.c:4011
0x96aa86 expand_gimple_basic_block
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-12.0.0_alpha20210516/work/gcc-12-20210516/gcc/cfgexpand.c:6053
0x96c5cf execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-12.0.0_alpha20210516/work/gcc-12-20210516/gcc/cfgexpand.c:6737
