[Bug target/24772] Lots of ICEs in vrsave_operation_1 while running the testsuite on powerpc

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

------- Comment #2 from rguenth at gcc dot gnu dot org  2005-11-10 09:51 -------
Testcase:

void bar (float *pa, float *pb, float *pc)
{
  int i;
  for (i = 0; i < 256; i++)
    {
    }
}
main1 (int n)
{
  int i;
  float a[256] __attribute__ ((__aligned__(16))); float b[256] __attribute__
((__aligned__(16))) =
{0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57}; float c[256]
__attribute__ ((__aligned__(16))) =
{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  float *pa = a;
  float *pb = b;
  float *pc = c;
  for (i = 0; i < n; i++)
    {
      pa[i] = pb[i] * pc[i];
    }
  bar (pa,pb,pc);
}

last rtl dump of main (43.ce3) shows:

(insn 340 339 341 0 (parallel [
            (set (reg:SI 109 vrsave)
                (unspec_volatile:SI [
                        (reg:SI 0 0)
                        (reg:SI 109 vrsave)
                    ] 30))
            (clobber (reg:V4SI 77 0))
            (clobber (reg:V4SI 78 1))
            (clobber (reg:V4SI 90 13))
        ]) -1 (nil)
    (expr_list:REG_DEAD (reg:SI 0 0)
        (expr_list:REG_UNUSED (reg:V4SI 90 13)
            (expr_list:REG_UNUSED (reg:V4SI 78 1)
                (expr_list:REG_UNUSED (reg:V4SI 77 0)
                    (nil))))))

they appear after 40.flow2 for some reason.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24772