https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101504
Bug ID: 101504
Summary: [12 Regression] ICE: in lra_assign, at
lra-assigns.c:1649 with -O2 -march=broadwell
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 51170
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51170&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -march=broadwell testcase.c
during RTL pass: reload
testcase.c: In function 'foo':
testcase.c:18:1: internal compiler error: in lra_assign, at lra-assigns.c:1649
18 | }
| ^
0xee2b8b lra_assign(bool&)
/repo/gcc-trunk/gcc/lra-assigns.c:1649
0xedce4c lra(_IO_FILE*)
/repo/gcc-trunk/gcc/lra.c:2387
0xe8ec59 do_reload
/repo/gcc-trunk/gcc/ira.c:5932
0xe8ec59 execute
/repo/gcc-trunk/gcc/ira.c:6118
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.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-2388-20210719001624-gbdea84c4b57-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-2388-20210719001624-gbdea84c4b57-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20210719 (experimental) (GCC)
