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2 Commits

Author SHA1 Message Date
Roman Lebedev 859e14aeaa [InstCombine] Fold x s> x & (-1 >> y) to x s> (-1 >> y) 
https://bugs.llvm.org/show_bug.cgi?id=38123
https://rise4fun.com/Alive/I3O

This pattern is not commutative!
We must make sure not to fold the commuted version!

llvm-svn: 337105
 2018-07-14 20:08:16 +00:00
Roman Lebedev 62d050d2c4 [NFC][InstCombine] Tests for x s> x & (-1 >> y) to x s> (-1 >> y) fold. 
https://bugs.llvm.org/show_bug.cgi?id=38123
https://rise4fun.com/Alive/I3O

This pattern is not commutative!
We must make sure not to fold the commuted version!

llvm-svn: 337104
 2018-07-14 20:08:09 +00:00