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2012 Dec 17
0
[LLVMdev] max/min intrinsics
...alent to an fcmp/select sequence.
This part worries me. The new min/max intrinsics will only be useful if we could pattern match cmp/select into them.
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2012 Dec 17
2
[LLVMdev] max/min intrinsics
On Wednesday, December 05, 2012 at 2:48 PM, Chris Lattner wrote:
> > What does the community think?
>
> It seems inevitable. For the floating point version, please make it very clear
> what the behavior of max(-0,+0) and related cases are.
The following is our current proposal for llvm.fmax/fmin.*:
[1] If exactly one argument is a NaN, the intrinsic returns the other argument.