https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96578
Bug ID: 96578
Summary: [11 Regression] ICE in extract_insn, at recog.c:2294
since r11-2623-g99e4891ed552aca4
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: marxin at gcc dot gnu.org
CC: crazylht at gmail dot com
Target Milestone: ---
Host: x86_64-linux-gnu
The following is causing ICE:
$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/vectorize8.c
-mavx5124vnniw -Ofast -c
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/vectorize8.c: In
function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/vectorize8.c:13:1:
error: unrecognizable insn:
13 | }
| ^
(insn 11 10 12 2 (set (reg:QI 136)
(lt:QI (reg:V8DF 135)
(reg:V8DF 133)))
"/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/vectorize8.c":12:10
-1
(nil))
during RTL pass: vregs
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/vectorize8.c:13:1:
internal compiler error: in extract_insn, at recog.c:2294
0x6c4d45 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/home/marxin/Programming/gcc/gcc/rtl-error.c:108
0x6c4d61 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/home/marxin/Programming/gcc/gcc/rtl-error.c:116
0x6c3349 extract_insn(rtx_insn*)
/home/marxin/Programming/gcc/gcc/recog.c:2294
0xab75c5 instantiate_virtual_regs_in_insn
/home/marxin/Programming/gcc/gcc/function.c:1607
0xab75c5 instantiate_virtual_regs
/home/marxin/Programming/gcc/gcc/function.c:1977
0xab75c5 execute
/home/marxin/Programming/gcc/gcc/function.c:2026
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
