Stanislav Mekhanoshin c9bd53ab59 [AMDGPU] Simplify setcc (sext from i1 b), -1|0, cc ...

Depending on the compare code that can be either an argument of
sext or negate of it. This helps to avoid v_cndmask_b64 instruction
for sext. A reversed value can be further simplified and folded into
its parent comparison if possible.

Differential Revision: https://reviews.llvm.org/D34545

llvm-svn: 306446

2017-06-27 18:53:03 +00:00

7.8 KiB

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