Re: [RFH] - Less than optimal code compiling 252.eon -O2 for x86

[fjahanian]

On Jun 24, 2005, at 3:16 PM, Andrew Pinski wrote:

I wonder why combine can do the simplification though which is why  
still
produce good code for the simple testcase:
void f1(double *d,float *f2)
{
  *f2 = 0.0;
  *d = 0.0;
}

It is hard to reproduce the simple test case, exhibiting the same  
problem (-O1 producing better code than -O2). Yes, small test cases  
move the desired simplification to other phases.

- fariborz

Thanks,
Andrew Pinski