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ab22644f5b
Summary: There was this comment here previously: ``` - // It is currently not resolved how to interpret NSW for left - // shift by BitWidth - 1, so we avoid applying flags in that - // case. Remove this check (or this comment) once the situation - // is resolved. See - // http://lists.llvm.org/pipermail/llvm-dev/2015-April/084195.html - // and http://reviews.llvm.org/D8890 . ``` But langref was fixed in rL286785, and the behavior is pretty obvious: http://volta.cs.utah.edu:8080/z/MM4WZP ^ nuw can always be propagated. nsw can be propagated if either nuw is specified, or the shift is by *less* than bitwidth-1. This mimics similar D81189 Reassociate change, alive2 is happy about that one. I'm not sure `NUW` isn't being printed, but that seems unrelated. Reviewers: mkazantsev, reames, sanjoy, nlopes, craig.topper, efriedma Reviewed By: efriedma Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D81243 |
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| AliasSet | ||
| AssumptionCache | ||
| BasicAA | ||
| BlockFrequencyInfo | ||
| BranchProbabilityInfo | ||
| CallGraph | ||
| CFLAliasAnalysis | ||
| ConstantFolding | ||
| CostModel | ||
| DDG | ||
| Delinearization | ||
| DemandedBits | ||
| DependenceAnalysis | ||
| DivergenceAnalysis | ||
| DominanceFrontier | ||
| Dominators | ||
| GlobalsModRef | ||
| IVUsers | ||
| LazyCallGraph | ||
| LazyValueAnalysis | ||
| LegacyDivergenceAnalysis | ||
| Lint | ||
| LoopAccessAnalysis | ||
| LoopCacheAnalysis/PowerPC | ||
| LoopInfo | ||
| LoopNestAnalysis | ||
| MemoryDependenceAnalysis | ||
| MemorySSA | ||
| MustExecute | ||
| PhiValues | ||
| PostDominators | ||
| ProfileSummary | ||
| RegionInfo | ||
| ScalarEvolution | ||
| ScopedNoAliasAA | ||
| StackSafetyAnalysis | ||
| TypeBasedAliasAnalysis | ||
| ValueTracking | ||
| alias-analysis-uses.ll | ||