Kai Luo b904324788 [DAGCombiner] Enhance (zext(setcc)) ...

Current `v:t = zext(setcc x,y,cc)` will be transformed to `select x, y, 1:t, 0:t, cc`. It misses some opportunities if x's type size is less than `t`'s size. This patch enhances the above transformation.

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D86687

2020-08-29 03:37:41 +00:00

7.4 KiB

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