[Bug bootstrap/44470] New: [4.6 Regression] Failed to bootstrap with - -with-arch=atom

[hjl dot tools at gmail dot com]

Revision 160417 failed to compile libgcc:

[...@gnu-32 rrs]$ cat testcase.i
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
  struct DWstruct {SItype low, high;};
typedef union
{
  struct DWstruct s;
  DItype ll;
} DWunion;
DItype
__negdi2 (DItype u)
{
  const DWunion uu = {.ll = u};
  const DWunion w = { {.low = -uu.s.low,
         .high = -uu.s.high - ((USItype) -uu.s.low > 0) } };
  return w.ll;
}
[...@gnu-32 rrs]$ /export/gnu/import/rrs/160417/usr/bin/gcc  -m32 -march=atom
-O2 -fPIC -S testcase.i   
testcase.i: In function ‘__negdi2’:
testcase.i:17:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[...@gnu-32 rrs]$


-- 
           Summary: [4.6 Regression] Failed to bootstrap with - -with-
                    arch=atom
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44470