[Bug middle-end/50913] [4.7 Regression] ICE in scan_tree_for_params_right_scev, at graphite-sese-to-poly.c:633 compiling libgfortran with -floop-interchange -m32
belyshev at depni dot sinp.msu.ru
gcc-bugzilla@gcc.gnu.org
Mon Nov 7 11:44:00 GMT 2011
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50913
Serge Belyshev <belyshev at depni dot sinp.msu.ru> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |i686-*-* x86_64-*-*
Status|UNCONFIRMED |NEW
Keywords| |ice-on-valid-code
Last reconfirmed| |2011-11-07
CC| |belyshev at depni dot
| |sinp.msu.ru
Ever Confirmed|0 |1
Summary|ICE: compiling libgfortran |[4.7 Regression] ICE in
|for i686-w64-mingw32 |scan_tree_for_params_right_
| |scev, at
| |graphite-sese-to-poly.c:633
| |compiling libgfortran with
| |-floop-interchange -m32
Severity|critical |normal
--- Comment #3 from Serge Belyshev <belyshev at depni dot sinp.msu.ru> 2011-11-07 11:43:48 UTC ---
Reduced testcase, fails on mainline with -O2 -floop-interchange -m32:
void spread_i1 (int *rptr, int *sptr, int ncopies, int *extent, int rdelta, int
m)
{
int *dest;
int n;
while (m--)
{
dest = rptr;
for (n = 0; n < ncopies; n ++)
{
*dest = *sptr;
dest += rdelta;
}
if (extent [n])
if (n)
rptr ++;
}
}
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