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will cause us to miss cases where the input pointer to a load could be value numbered to another load. Something like this: %X = load int* %P1 %Y = load int* %P2 Those are obviously the same if P1/P2 are the same. The code this patch removes attempts to handle that. However, since GCSE iterates, this doesn't actually buy us anything: GCSE will first replace P1 or P2 with the other one, then the load can be value numbered as equal. Removing this code speeds up gcse a lot. On 176.gcc in debug mode, this speeds up gcse from 29.08s -> 25.73s, a 13% savings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19906 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
DataStructure | ||
IPA | ||
AliasAnalysis.cpp | ||
AliasAnalysisCounter.cpp | ||
AliasAnalysisEvaluator.cpp | ||
AliasSetTracker.cpp | ||
BasicAliasAnalysis.cpp | ||
CFGPrinter.cpp | ||
ConstantRange.cpp | ||
Expressions.cpp | ||
InstCount.cpp | ||
Interval.cpp | ||
IntervalPartition.cpp | ||
LoadValueNumbering.cpp | ||
LoopInfo.cpp | ||
Makefile | ||
PostDominators.cpp | ||
ProfileInfo.cpp | ||
ProfileInfoLoader.cpp | ||
ProfileInfoLoaderPass.cpp | ||
ScalarEvolution.cpp | ||
Trace.cpp | ||
ValueNumbering.cpp |