https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79807
Bug ID: 79807
Summary: ICE in extract_insn, at recog.c:2311 (error:
unrecognizable insn)
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: jakub at redhat dot com, kyukhin at gcc dot gnu.org
Target Milestone: ---
Target: x86_64-linux-gnu
Starting from r244263, we ICE:
$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/sse-22.c
-ffloat-store
In file included from
/home/marxin/bin/gcc3/lib64/gcc/x86_64-pc-linux-gnu/7.0.1/include/immintrin.h:41:0,
from
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/sse-22.c:223:
/home/marxin/bin/gcc3/lib64/gcc/x86_64-pc-linux-gnu/7.0.1/include/avxintrin.h:
In function ‘_mm256_castpd256_pd128’:
/home/marxin/bin/gcc3/lib64/gcc/x86_64-pc-linux-gnu/7.0.1/include/avxintrin.h:1436:1:
error: unrecognizable insn:
}
^
(insn 6 3 9 2 (set (mem:V2DF (plus:DI (reg/f:DI 82 virtual-stack-vars)
(const_int -16 [0xfffffffffffffff0])) [11 S16 A128])
(vec_select:V2DF (mem/c:V4DF (plus:DI (reg/f:DI 82 virtual-stack-vars)
(const_int -64 [0xffffffffffffffc0])) [11 __A+0 S32 A256])
(parallel [
(const_int 0 [0])
(const_int 1 [0x1])
])))
"/home/marxin/bin/gcc3/lib64/gcc/x86_64-pc-linux-gnu/7.0.1/include/avxintrin.h":1435
-1
(nil))
/home/marxin/bin/gcc3/lib64/gcc/x86_64-pc-linux-gnu/7.0.1/include/avxintrin.h:1436:1:
internal compiler error: in extract_insn, at recog.c:2311
0xb95868 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc/rtl-error.c:108
0xb95899 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../gcc/rtl-error.c:116
0xb62e81 extract_insn(rtx_insn*)
../../gcc/recog.c:2311
0x92d5e3 instantiate_virtual_regs_in_insn
../../gcc/function.c:1589
0x92d5e3 instantiate_virtual_regs
../../gcc/function.c:1957
0x92d5e3 execute
../../gcc/function.c:2006
Similar to what was reported in PR79568.
