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3 Commits

Author SHA1 Message Date
Simon Pilgrim fa8fadc0e5 [DAGCombiner] Add vector support to C2-(A+C1) -> (C2-C1)-A folding 
llvm-svn: 284117
 2016-10-13 12:49:31 +00:00
Simon Pilgrim 833b8a2071 [DAGCombiner] Add vector support to (sub -1, x) -> (xor x, -1) canonicalization 
Improves commutation potential

llvm-svn: 284113
 2016-10-13 12:05:20 +00:00
Simon Pilgrim 99cc6f8043 [X86][SSE] Added vector sub combine tests 
llvm-svn: 281769
 2016-09-16 20:00:51 +00:00