https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68428
Bug ID: 68428
Summary: [6 Regression] [graphite] ICE in
outermost_loop_in_sese w/ -O2 -floop-strip-mine or -O2
-floop-nest-optimize
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
At least gcc-6.0.0-alpha20151108 and gcc-6.0.0-alpha20151115 ICE when compiling
the following reduced case:
int au[4] = { 0 };
int
main(void)
{
int dc;
int m7;
int lv;
int f2;
int uq[3] = { 1 };
for (dc = 0; dc < 2; ++dc) {
for (lv = 0; lv < 2; ++lv)
for (m7 = 0; m7 < 3; ++m7) {
if (uq[dc] == 0)
continue;
for (f2 = 0; f2 < 3; ++f2)
au[dc+2] = uq[f2];
}
}
return 0;
}
% gcc-6.0.0-alpha20151115 -O2 -floop-strip-mine y7cav5se.c
y7cav5se.c: In function 'main':
y7cav5se.c:4:1: internal compiler error: in outermost_loop_in_sese, at
sese.c:1892
main(void)
^~~~
I cannot reproduce it w/ gcc-6.0.0-alpha20150802, though.
