[Bug tree-optimization/18463] [4.0 Regression] Moving floating point through an integer register

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-11-13 
18:14 -------
Here is the reduced testcase for the problem, it has nothing to do with loops 
at all:
void
fcpy(float *restrict a,  float *restrict b,
     float *restrict aa, float *restrict bb, unsigned n)
{
                aa[n]=a[n];
                bb[n]=b[n];
}

DOM is doing CSE of n*4 which is the right thing to do.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18463