Missing if optimization

[James E Wilson]

Uros Bizjak wrote:
> The if optimization, which produces quite optimized code for integer 
> case is missing for floatin-point compares.

This is very target dependent, and you didn't mention the target.  From 
the assembly code, it appears to be x86.

Some targets have comparisons that can be used to optimize this 
testcase.  Some don't.

For those that do, whether it gets optimized depends on how the backend 
represents compares, which is done differently for different targets.

As for the optimization itself, there should be no problem there, as has 
already been pointed out we get this right for powerpc.

You might consider filing a bug report for the missed optimization if 
you haven't already.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com