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llvm-mirror/test/Analysis
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Florian Hahn e93c4c3336 [SCEV] Retain AddExpr flags when subtracting a foldable constant. 
Currently we drop wrapping flags for expressions like (A + C1)<flags> - C2.

But we can retain flags under certain conditions:

* Adding a smaller constant is NUW if the original AddExpr was NUW.

* Adding a constant with the same sign and small magnitude is NSW, if the
  original AddExpr was NSW.

This can improve results after using `SimplifyICmpOperands`, which may
subtract one in order to use stricter predicates, as is the case for
`isKnownPredicate`.

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D104319
2021-06-22 11:27:51 +01:00
..
AliasSet [noalias.decl] Look through llvm.experimental.noalias.scope.decl 2021-01-19 20:09:42 +01:00
AssumptionCache Revert "[AssumptionCache] Avoid dangling llvm.assume calls in the cache" 2021-02-11 12:17:38 -06:00
BasicAA [IR] Memory intrinsics are not unconditionally nosync 2021-05-21 03:40:59 +02:00
BlockFrequencyInfo [BPI] Improve static heuristics for "cold" paths. 2020-12-23 22:47:36 +07:00
BranchProbabilityInfo Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
CallGraph Set IgnoreLLVMUsed to false in CallGraph::addToCallGraph() 2021-04-08 11:14:09 -07:00
CFLAliasAnalysis
CostModel Update @llvm.powi to handle different int sizes for the exponent 2021-06-17 09:38:28 +02:00
DDG Fix print-dot-ddg.ll so it doesn't try to write to the source tree (& uses the test temp paths instead) 2021-01-07 19:57:14 -08:00
Delinearization Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
DemandedBits Add getDemandedBits for uses. 2021-06-02 10:07:40 -04:00
DependenceAnalysis Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
DivergenceAnalysis [NewPM] Introduce (GPU)DivergenceAnalysis in the new pass manager 2021-02-16 10:26:45 +05:30
DominanceFrontier
Dominators
FunctionPropertiesAnalysis
GlobalsModRef
IRSimilarityIdentifier [IROutliner] Adding instruction strings to IRSimilarityPrinting diagnostics. 2021-02-09 12:11:47 -06:00
IVUsers
LazyCallGraph
LazyValueAnalysis
LegacyDivergenceAnalysis [NewPM] Introduce (GPU)DivergenceAnalysis in the new pass manager 2021-02-16 10:26:45 +05:30
Lint
LoopAccessAnalysis [SCEV] Retain AddExpr flags when subtracting a foldable constant. 2021-06-22 11:27:51 +01:00
LoopCacheAnalysis/PowerPC
LoopInfo
LoopNestAnalysis [LoopNest] Consider loop nest with inner loop guard using outer loop 2021-05-07 16:04:18 +00:00
MemoryDependenceAnalysis Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
MemorySSA Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
MustExecute
PhiValues
PostDominators
ProfileSummary
RegionInfo
ScalarEvolution [ScalarEvolution] Ensure backedge-taken counts are not pointers. 2021-06-21 16:24:16 -07:00
ScopedNoAliasAA [MemCpyOpt] Correctly merge alias scopes during call slot optimization 2020-12-03 09:23:37 -08:00
StackSafetyAnalysis [SCEV] Use both known bits and sign bits when computing range of SCEV unknowns 2021-02-19 08:29:12 -08:00
TypeBasedAliasAnalysis Revert "[NFC] remove explicit default value for strboolattr attribute in tests" 2021-05-24 19:43:40 +02:00
ValueTracking Recommit "Generalize getInvertibleOperand recurrence handling slightly" 2021-05-03 16:40:56 -07:00
alias-analysis-uses.ll