https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101038
Bug ID: 101038
Summary: ice in vect_optimize_slp
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 50988
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50988&action=edit
gzipped C++ source code
The attached C++ code, when compiled by -march=bdver2 and -O3,
does this:
during GIMPLE pass: vect
/home/dcb34/rpmbuild/BUILD/kolourpaint-21.04.1/imagelib/effects/blitz.cpp: In
fu
nction ‘bool _Z8equalizeR6QImage.part.0(QImage&)’:
/home/dcb34/rpmbuild/BUILD/kolourpaint-21.04.1/imagelib/effects/blitz.cpp:125:6:
internal compiler error: Segmentation fault
125 | bool equalize(QImage &img)
| ^~~~~~~~
0xfcd5f9 crash_signal(int)
../../trunk.git/gcc/toplev.c:327
0x12a4968 vect_optimize_slp(vec_info*)
../../trunk.git/gcc/tree-vect-slp.c:3626
This code was fine at git hash 91349e57bbfd0101, but had gone wrong by
f8b067056ba5dd53, a few days later.
