https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97792
Bug ID: 97792
Summary: ICE in extract_insn, at recog.c:2315
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: ktkachov at gcc dot gnu.org, rearnsha at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux
Target: arm-linux-gnueabi
The following fails:
$ gcc
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/overflow-vec-2.c
-mcpu=iwmmxt -c
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/overflow-vec-2.c:
In function ‘main’:
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/overflow-vec-2.c:144:1:
error: unrecognizable insn:
144 | }
| ^
(insn 1590 1589 1591 2 (set (reg:V8QI 353 [ _337 ])
(mult:V8QI (reg:V8QI 351 [ _335 ])
(reg:V8QI 352 [ _336 ])))
"/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/overflow-vec-2.c":110:9
-1
(nil))
during RTL pass: vregs
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/overflow-vec-2.c:144:1:
internal compiler error: in extract_insn, at recog.c:2315
0x5f02f7 _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
0x5f0313 _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
0x5ef7c8 extract_insn(rtx_insn*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/recog.c:2315
0x87e5ff instantiate_virtual_regs_in_insn
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:1609
0x87e5ff instantiate_virtual_regs
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:1979
0x87e5ff execute
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:2028
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.
