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55e622cae0
IndVarSimplify sometimes makes transforms basing on users that are trivially dead. In particular, if DCE wasn't run before it, there may be a dead `sext/zext` in loop that will trigger widening transforms, however it makes no sense to do it. This patch teaches IndVarsSimplify ignore the mist trivial cases of that. Differential Revision: https://reviews.llvm.org/D47974 Reviewed By: sanjoy llvm-svn: 334567 |
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AliasSet | ||
AssumptionCache | ||
BasicAA | ||
BlockFrequencyInfo | ||
BranchProbabilityInfo | ||
CallGraph | ||
CFLAliasAnalysis | ||
ConstantFolding | ||
CostModel | ||
Delinearization | ||
DemandedBits | ||
DependenceAnalysis | ||
DivergenceAnalysis | ||
DominanceFrontier | ||
Dominators | ||
GlobalsModRef | ||
IVUsers | ||
LazyCallGraph | ||
LazyValueAnalysis | ||
Lint | ||
LoopAccessAnalysis | ||
LoopInfo | ||
MemoryDependenceAnalysis | ||
MemorySSA | ||
MustExecute | ||
PostDominators | ||
ProfileSummary | ||
RegionInfo | ||
ScalarEvolution | ||
ScopedNoAliasAA | ||
TypeBasedAliasAnalysis | ||
ValueTracking | ||
alias-analysis-uses.ll |