2 Commits

Author	SHA1	Message	Date
Roman Lebedev	136867931a	[InstCombine] Canonicalize variable mask in masked merge ... Summary: Masked merge has a pattern of: `((x ^ y) & M) ^ y`. But, there is no difference between `((x ^ y) & M) ^ y` and `((x ^ y) & ~M) ^ x`, We should canonicalize the pattern to non-inverted mask. https://rise4fun.com/Alive/Yol Reviewers: spatel, craig.topper Reviewed By: spatel Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D45664 llvm-svn: 331112	2018-04-28 15:45:07 +00:00
Roman Lebedev	6b1e66b188	[InstCombine][NFC] Add tests for variable mask canonicalization in masked merge ... Summary: Masked merge has a pattern of: `((x ^ y) & M) ^ y`. But, there is no difference between `((x ^ y) & M) ^ y` and `((x ^ y) & ~M) ^ x`, We should canonicalize the pattern to non-inverted mask. Differential Revision: https://reviews.llvm.org/D45663 llvm-svn: 331111	2018-04-28 15:45:00 +00:00