https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71667
Bug ID: 71667
Summary: [7 Regression] ICE in as_a, at is-a.h:192 w/ -g -O2
-ftree-vectorize
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-7.0.0-alpha20160619 ICEs on the following reduced testcase w/ -O2 (-O3,
-Ofast) -g -ftree-vectorize:
unsigned int mu;
int pt;
void
qf (void)
{
int gy;
long int vz;
for (;;)
{
for (gy = 0; gy < 80; ++gy)
{
vz = mu;
++mu;
pt = (vz != 0) && (pt != 0);
}
while (gy < 81)
while (gy < 83)
{
vz = (vz != 0) ? 0 : mu;
++gy;
}
pt = vz;
++mu;
}
}
% gcc-7.0.0-alpha20160619 -c -O2 -g -ftree-vectorize jjgn2cjj.c
jjgn2cjj.c: In function 'qf':
jjgn2cjj.c:5:1: internal compiler error: in as_a, at is-a.h:192
qf (void)
^~
