https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85935
Bug ID: 85935
Summary: [8/9 Regression] [graphite] ICE in extract_affine, at
graphite-sese-to-poly.c:287
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-9.0.0-alpha20180520 snapshot (r260425) and 8.1 ICE when compiling the
following snippet w/ -O1 (-O2, -O3, -Ofast) -floop-parallelize-all
-fno-tree-loop-im --param scev-max-expr-size=3:
typedef int dq;
int gb;
void
qq (dq ww, int kk)
{
dq *up = &ww;
(void) *up;
while (kk < 1)
{
++ww;
if (ww == 0)
for (gb = 0; gb < 2; ++gb)
{
}
++kk;
}
}
% gcc-9.0.0-alpha20180520 -O1 -floop-parallelize-all -fno-tree-loop-im --param
scev-max-expr-size=3 -c ahhx6tw1.c
during GIMPLE pass: graphite
ahhx6tw1.c: In function 'qq':
ahhx6tw1.c:6:1: internal compiler error: in extract_affine, at
graphite-sese-to-poly.c:287
qq (dq ww, int kk)
^~
0x14852fa extract_affine
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:287
0x148518a extract_affine
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:300
0x1484c2a extract_affine
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:260
0x1484fe9 extract_affine_chrec
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:86
0x1484fe9 extract_affine
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:237
0x1486263 add_condition_to_pbb
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:349
0x1486263 add_conditions_to_domain
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:416
0x1486263 build_iteration_domains
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:866
0x14866af build_poly_scop(scop*)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite-sese-to-poly.c:1215
0x1477e51 graphite_transform_loops()
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite.c:406
0x1478280 graphite_transforms
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite.c:475
0x1478280 execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180520/work/gcc-9-20180520/gcc/graphite.c:552
