https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104779
Bug ID: 104779
Summary: [12 Regression] ICE: in extract_insn, at recog.cc:2769
(error: unrecognizable insn)
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: x86_64-pc-linux-gnu
gcc 12.0.1 20220227 snapshot (g:d1574a9b820f17adb9004255e2018967e9be063b) ICEs
when compiling the following testcase w/ -O1 --param
sccvn-max-alias-queries-per-access=0:
__attribute__ ((simd)) int
foo (int x, int y, int z)
{
return (x & y) * !!z;
}
% x86_64-pc-linux-gnu-gcc-12.0.1 -O1 --param
sccvn-max-alias-queries-per-access=0 -c yumxsqtg.c
yumxsqtg.c: In function 'foo.simdclone.6':
yumxsqtg.c:5:1: error: unrecognizable insn:
5 | }
| ^
(insn 14 13 18 2 (set (reg:V16SI 85 [ <retval> ])
(vec_merge:V16SI (and:V16SI (mem/c:V16SI (plus:DI (reg/f:DI 77
virtual-stack-vars)
(const_int -128 [0xffffffffffffff80])) [0 MEM
<vector(16) int> [(int *)&y.57]+0 S64 A512])
(mem/c:V16SI (plus:DI (reg/f:DI 77 virtual-stack-vars)
(const_int -192 [0xffffffffffffff40])) [0 MEM
<vector(16) int> [(int *)&x.56]+0 S64 A512]))
(const_vector:V16SI [
(const_int 0 [0]) repeated x16
])
(reg:HI 91 [ mask__5.187 ]))) -1
(nil))
during RTL pass: vregs
yumxsqtg.c:5:1: internal compiler error: in extract_insn, at recog.cc:2769
0x71bfd7 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/rtl-error.cc:108
0x71bff3 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/rtl-error.cc:116
0x71a5ed extract_insn(rtx_insn*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/recog.cc:2769
0xb65c6b instantiate_virtual_regs_in_insn
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/function.cc:1611
0xb65c6b instantiate_virtual_regs
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/function.cc:1985
0xb65c6b execute
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/function.cc:2034
