https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96177
Bug ID: 96177
Summary: ICE: in extract_insn, at recog.c:2294 (error:
unrecognizable insn)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
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-alpha20200705 snapshot (g:cc9a9229285a26ac12bc8de53237ce9c4d42f867)
ICEs when compiling the following testcase, extracted from
gcc/testsuite/gcc.target/powerpc/xxgenpc-runnable.c, w/ -mcpu=power10:
__attribute__ ((altivec (vector__))) char
ew (__attribute__ ((altivec (vector__))) char uk)
{
return __builtin_vec_xxgenpcvm (uk, 1);
}
% powerpc-e300c3-linux-gnu-gcc-11.0.0 -mcpu=power10 -c rwmfukd0.c
rwmfukd0.c: In function 'ew':
rwmfukd0.c:5:1: error: unrecognizable insn:
5 | }
| ^
(insn 7 6 10 2 (set (reg:V16QI 117 [ _2 ])
(unspec:V16QI [
(reg:V16QI 119)
(const_int 1 [0x1])
] UNSPEC_XXGENPCV)) "rwmfukd0.c":4:10 -1
(nil))
during RTL pass: vregs
rwmfukd0.c:5:1: internal compiler error: in extract_insn, at recog.c:2294
0x696456 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200705/work/gcc-11-20200705/gcc/rtl-error.c:108
0x696476 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200705/work/gcc-11-20200705/gcc/rtl-error.c:116
0x694697 extract_insn(rtx_insn*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200705/work/gcc-11-20200705/gcc/recog.c:2294
0xb23a93 instantiate_virtual_regs_in_insn
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200705/work/gcc-11-20200705/gcc/function.c:1607
0xb23a93 instantiate_virtual_regs
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200705/work/gcc-11-20200705/gcc/function.c:1977
0xb23a93 execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200705/work/gcc-11-20200705/gcc/function.c:2026
