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4 Commits

Author SHA1 Message Date
Simon Pilgrim 9620f4b746 [InstCombine] Add constant vector support for X udiv C, where C >= signbit 
llvm-svn: 324728
 2018-02-09 10:43:59 +00:00
Simon Pilgrim f30656add3 [InstCombine] Add vector udiv tests 
Tests for X udiv C, where C >= signbit

llvm-svn: 324635
 2018-02-08 18:58:00 +00:00
Simon Pilgrim 2a90acd17a [InstCombine] Fix issue with X udiv (POW2_C1 << N) for non-splat constant vectors 
foldUDivShl was assuming that the input was a scalar or a splat constant

llvm-svn: 324613
 2018-02-08 15:19:38 +00:00
Simon Pilgrim 94cc89d5f2 [InstCombine] Fix issue with X udiv 2^C -> X >> C for non-splat constant vectors 
foldUDivPow2Cst was assuming that the input was a scalar or a splat constant

llvm-svn: 324608
 2018-02-08 14:46:10 +00:00