[Bug target/66137] New: [4.9/5 Regression] ICE with -ffixed-ebp

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66137

            Bug ID: 66137
           Summary: [4.9/5 Regression] ICE with -ffixed-ebp
           Product: gcc
           Version: 5.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
                CC: hubicka at gcc dot gnu.org
  Target Milestone: ---

void
foo (char *x, char *y, char *z, int a)
{
  int i;
  for (i = a; i > 0; i--)
    *x++ = *y++ = *z++;
}

ICEs when compiled with -mno-accumulate-outgoing-args -mavx -O3 -ffixed-ebp
starting with r203171 or when compiled with -mavx -O3 -ffixed-ebp starting with
r206947.