[Bug tree-optimization/32243] New: [4.3 Regression] ICE in vectorizable_type_promotion, at tree-vect-transform.c:2890

["tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>]

I'm getting the following ICE with current trunk.  This also fails with
20070303.

(sid)25827:tbm@em64t: ~] /usr/lib/gcc-snapshot/bin/gcc -c -O3 -ftree-vectorize
mesa-depthstencil.c
mesa-depthstencil.c: In function 'put_mono_values_s8':
mesa-depthstencil.c:13: internal compiler error: in
vectorizable_type_promotion, at tree-vect-transform.c:2890
Please submit a full bug report, [...]

Test case:


typedef struct __GLcontextRec GLcontext;
struct gl_renderbuffer
{
  struct gl_renderbuffer *Wrapped;
  void (*PutValues) (GLcontext *ctx, struct gl_renderbuffer *rb,
                     int count, const int x[], const int y[],
                     const void *values, const char *mask);
};
void
put_mono_values_s8 (GLcontext *ctx, struct gl_renderbuffer *s8rb,
                    int count, const int x[], const int y[],
                    const void *value, const char *mask)
{
  struct gl_renderbuffer *dsrb = s8rb->Wrapped;
  int temp[4096], i;
  const char val = *((char *) value);
  for (i = 0; i < count; i++)
      if (!mask || mask[i])
          temp[i] = (temp[i] & 0xffffff) | val;
  dsrb->PutValues (ctx, dsrb, count, x, y, temp, mask);
}
_mesa_new_s8_renderbuffer_wrapper (void)
{
  struct gl_renderbuffer *s8rb;
  s8rb->PutValues = put_mono_values_s8;
}


-- 
           Summary: [4.3 Regression] ICE in vectorizable_type_promotion, at
                    tree-vect-transform.c:2890
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32243