[PATCH] R600/SI: Add intrinsic for class instructions

[Matt Arsenault]

> On Dec 21, 2014, at 7:42 PM, Matt Arsenault <arsenm2 at gmail.com> wrote:
> 
> Hi,
> 
> These add an intrinsic and basic combines for instructions for FP classify functions, and also match the simplest patterns to it. A generic intrinsic would be better, since some of the others that are not handled are pretty complicated to match and that could also be emitted from the corresponding __builtins.
> 
> <0001-R600-SI-Add-class-intrinsic.patch><0002-R600-SI-Add-basic-DAG-combines-for-fp_class.patch><0003-R600-SI-Pattern-match-isinf-to-v_cmp_class-instructi.patch><0004-Add-isInfinity-helper-to-ConstantFPSDNode.patch><0005-Add-isNegative-helper-to-ConstantFPSDNode.patch><0006-R600-SI-Add-combine-for-isinfinite-pattern.patch>

ping