[Bug c/16356] New: Failure to use count register

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

I was retesting bug 14886 on 3.5 cvs (20040703) and noticed the count register
is not being used in 64bit:

float bar;

void f1 (void)
{
  int i;
  for (i = 0; i < 500; i++)
    __asm__ __volatile__ ("# %0" : : "f" (i * bar));
}

gives:

.L2:
        rldicl. 0,11,0,53
        sradi 9,11,53
        addi 9,9,1
        cmpldi 7,9,2
        beq- 0,.L3
        xor 0,11,0
        blt- 7,.L3
        ori 11,0,2048
.L3:
        lfs 13,0(10)
        std 11,-16(1)
        lfd 12,-16(1)
        fcfid 12,12
        frsp 0,12
        fmuls 0,0,13
#APP
        # 0
#NO_APP
        addi 0,11,1
        extsw 11,0
        cmpwi 7,11,499
        ble+ 7,.L2

-- 
           Summary: Failure to use count register
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: anton at samba dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: powerpc64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16356