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It handles the errors which were seen in PR19958 where wrong code was being emitted due to earlier patch. Added code for lshr as well as non-exact right shifts. It implements : (icmp eq/ne (ashr/lshr const2, A), const1)" -> (icmp eq/ne A, Log2(const2/const1)) -> (icmp eq/ne A, Log2(const2) - Log2(const1)) Differential Revision: http://reviews.llvm.org/D4068 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213678 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
CMakeLists.txt | ||
InstCombine.h | ||
InstCombineAddSub.cpp | ||
InstCombineAndOrXor.cpp | ||
InstCombineCalls.cpp | ||
InstCombineCasts.cpp | ||
InstCombineCompares.cpp | ||
InstCombineLoadStoreAlloca.cpp | ||
InstCombineMulDivRem.cpp | ||
InstCombinePHI.cpp | ||
InstCombineSelect.cpp | ||
InstCombineShifts.cpp | ||
InstCombineSimplifyDemanded.cpp | ||
InstCombineVectorOps.cpp | ||
InstCombineWorklist.h | ||
InstructionCombining.cpp | ||
LLVMBuild.txt | ||
Makefile |