Li Jia He f6fb752fe8 [PowerPC] Fix some missed optimization opportunities in combineSetCC ...

For both operands are bool, short, int, long, long long, add the following optimization.
1. 0-x == y --> x+y ==0
2. 0-x != y --> x+y != 0

Review: nemanjai
Differential Revision: https://reviews.llvm.org/D53360

llvm-svn: 345366

2018-10-26 06:48:53 +00:00

10 KiB

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