Commit Graph

2 Commits

Author SHA1 Message Date
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
Li Jia He 9521467318 [PowerPC][NFC] Add tests for some missed optimization opportunities in combineSetCC
For both operands are bool, short, int, long, long long, add the following optimization test case.
1. 0-x == y --> x+y ==0
2. 0-x != y --> x+y != 0

Review: nemanjai
Differential Revision: https://reviews.llvm.org/D53358

llvm-svn: 345365
2018-10-26 05:02:10 +00:00