http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54899
Bug #: 54899
Summary: -fpredictive-commoning and -ftree-vectorize
optimizations generate a nonsensical binary which
segfaults
Classification: Unclassified
Produ
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33989
Scott Mansell changed:
What|Removed |Added
CC||phiren at gmail dot com
--- Comment #12
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33989
--- Comment #14 from Scott Mansell 2010-11-12
03:15:21 UTC ---
I downloaded and compiled the 2010-11-6 snapshot of gcc 4.6.
I'm still getting the extra load/store in ppc with -O3.
.L.f:
lfs 0,0(3)
fadds 0,1,0
stfs 0,-16(1)
lwz 0,
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33989
--- Comment #15 from Scott Mansell 2010-11-12
04:04:25 UTC ---
Weirdly, it works fine with doubles.
Testcase:
union a
{
long int i;
double f;
};
void d(double *a, long int *b, double e)
{
union a c;
c.f = *a + e;
*b = c.i;
}
Results
