https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100508
Bug ID: 100508
Summary: ICE with '-g -O3': in expand_debug_locations, at
cfgexpand.c:5618
Product: gcc
Version: tree-ssa
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: cnsun at uwaterloo dot ca
Target Milestone: ---
$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/configure
--enable-languages=c,c++,lto --enable-checking-yes --enable-multiarch
--prefix=/scratch/software/gcc-trunk --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20210510 (experimental) [master revision
:fb3a8fb4a:25f9f35a85ffee808fc1482b14d91176df59751b] (GCC)
$ cat mutant.c
typedef __attribute__((__vector_size__(32))) V;
V j;
__attribute__((simd)) foo() { V m = j; }
$ gcc-trunk -g -O3 mutant.c
mutant.c:1:46: warning: type defaults to ‘int’ in declaration of ‘V’
[-Wimplicit-int]
1 | typedef __attribute__((__vector_size__(32))) V;
| ^
mutant.c:3:23: warning: return type defaults to ‘int’ [-Wimplicit-int]
3 | __attribute__((simd)) foo() { V m = j; }
| ^~~
during RTL pass: expand
mutant.c: In function ‘foo.simdclone.2’:
mutant.c:3:23: internal compiler error: in expand_debug_locations, at
cfgexpand.c:5618
0x68c497 expand_debug_locations
/tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/gcc/cfgexpand.c:5618
0x68c497 execute
/tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/gcc/cfgexpand.c:6735
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.
