https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99786
Bug ID: 99786
Summary: ICE in in extract_insn, at recog.c:2770
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
Target Milestone: ---
Host: x86_64-linux-gnu
Target: arm-linux-gnueabi
The following ICEs:
$ arm-linux-gnueabi-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ubsan/pr79904.c -mcpu=iwmmxt
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ubsan/pr79904.c: In function
‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ubsan/pr79904.c:11:1: error:
unrecognizable insn:
11 | }
| ^
(insn 9 8 10 2 (set (reg:V8QI 114 [ _2 ])
(mult:V8QI (reg:V8QI 113 [ _1 ])
(reg:V8QI 116)))
"/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ubsan/pr79904.c":10:11 -1
(nil))
during RTL pass: vregs
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ubsan/pr79904.c:11:1:
internal compiler error: in extract_insn, at recog.c:2770
0x5fea13 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/rtl-error.c:108
0x5fea2f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/rtl-error.c:116
0x5fdea6 extract_insn(rtx_insn*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/recog.c:2770
0x89836f instantiate_virtual_regs_in_insn
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:1609
0x89836f instantiate_virtual_regs
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:1983
0x89836f execute
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:2032
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.
