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47d13f688a
This relands commit 1c021c64caef83cccb719c9bf0a2554faa6563af which was reverted in commit 17cec6a11a12f815052d56a17ef738cf246a2d9a because an assertion was being triggered, since `BuildConstantFromSCEV()` wasn't updated to handle the case where the constant we want to truncate is actually a pointer. I was unsuccessful in coming up with a test case where we'd end there with constant zext/sext of a pointer, so i didn't handle those cases there until there is a test case. Original commit message: While we indeed can't treat them as no-ops, i believe we can/should do better than just modelling them as `unknown`. `inttoptr` story is complicated, but for `ptrtoint`, it seems straight-forward to model it just as a zext-or-trunc of unknown. This may be important now that we track towards making inttoptr/ptrtoint casts not no-op, and towards preventing folding them into loads/etc (see D88979/D88789/D88788) Reviewed By: mkazantsev Differential Revision: https://reviews.llvm.org/D88806 |
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| .. | ||
| AliasSet | ||
| AssumptionCache | ||
| BasicAA | ||
| BlockFrequencyInfo | ||
| BranchProbabilityInfo | ||
| CallGraph | ||
| CFLAliasAnalysis | ||
| CostModel | ||
| DDG | ||
| Delinearization | ||
| DemandedBits | ||
| DependenceAnalysis | ||
| DivergenceAnalysis | ||
| DominanceFrontier | ||
| Dominators | ||
| FunctionPropertiesAnalysis | ||
| GlobalsModRef | ||
| IRSimilarityIdentifier | ||
| 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 | ||