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5733100450
Summary: Some optimizations such as jump threading and loop unswitching can negatively affect performance when applied to divergent branches. The divergence analysis added in this patch conservatively estimates which branches in a GPU program can diverge. This information can then help LLVM to run certain optimizations selectively. Test Plan: test/Analysis/DivergenceAnalysis/NVPTX/diverge.ll Reviewers: resistor, hfinkel, eliben, meheff, jholewinski Subscribers: broune, bjarke.roune, madhur13490, tstellarAMD, dberlin, echristo, jholewinski, llvm-commits Differential Revision: http://reviews.llvm.org/D8576 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234567 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
InstPrinter | ||
MCTargetDesc | ||
TargetInfo | ||
cl_common_defines.h | ||
CMakeLists.txt | ||
LLVMBuild.txt | ||
Makefile | ||
ManagedStringPool.h | ||
NVPTX.h | ||
NVPTX.td | ||
NVPTXAllocaHoisting.cpp | ||
NVPTXAllocaHoisting.h | ||
NVPTXAsmPrinter.cpp | ||
NVPTXAsmPrinter.h | ||
NVPTXAssignValidGlobalNames.cpp | ||
NVPTXFavorNonGenericAddrSpaces.cpp | ||
NVPTXFrameLowering.cpp | ||
NVPTXFrameLowering.h | ||
NVPTXGenericToNVVM.cpp | ||
NVPTXImageOptimizer.cpp | ||
NVPTXInstrFormats.td | ||
NVPTXInstrInfo.cpp | ||
NVPTXInstrInfo.h | ||
NVPTXInstrInfo.td | ||
NVPTXIntrinsics.td | ||
NVPTXISelDAGToDAG.cpp | ||
NVPTXISelDAGToDAG.h | ||
NVPTXISelLowering.cpp | ||
NVPTXISelLowering.h | ||
NVPTXLowerAggrCopies.cpp | ||
NVPTXLowerAggrCopies.h | ||
NVPTXLowerStructArgs.cpp | ||
NVPTXMachineFunctionInfo.h | ||
NVPTXMCExpr.cpp | ||
NVPTXMCExpr.h | ||
NVPTXPrologEpilogPass.cpp | ||
NVPTXRegisterInfo.cpp | ||
NVPTXRegisterInfo.h | ||
NVPTXRegisterInfo.td | ||
NVPTXReplaceImageHandles.cpp | ||
NVPTXSection.h | ||
NVPTXSubtarget.cpp | ||
NVPTXSubtarget.h | ||
NVPTXTargetMachine.cpp | ||
NVPTXTargetMachine.h | ||
NVPTXTargetObjectFile.h | ||
NVPTXTargetTransformInfo.cpp | ||
NVPTXTargetTransformInfo.h | ||
NVPTXUtilities.cpp | ||
NVPTXUtilities.h | ||
NVPTXVector.td | ||
NVVMReflect.cpp |