Add fast math inst combine X*log2(Y*0.5)-->X*log2(Y)-X
authorPedro Artigas <partigas@apple.com>
Fri, 30 Nov 2012 19:09:41 +0000 (19:09 +0000)
committerPedro Artigas <partigas@apple.com>
Fri, 30 Nov 2012 19:09:41 +0000 (19:09 +0000)
commit84030dcb3f532f66b13d54da7bdef9621527c5c5
tree7a7be4aace9603cb85f0461996dd3a1ed04653e0
parentcb4953089bb845afedeaaf5dfd03d8d5639fd656
Add fast math inst combine X*log2(Y*0.5)-->X*log2(Y)-X

reviewed by Michael Ilseman <milseman@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169025 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/InstCombine/InstCombineMulDivRem.cpp