llvm-project/llvm/test/Analysis
Adam Nemet 4896c7a82a [ScopedNoAliasAA] Make test basic.ll less confusing
Summary:
This testcase had me confused.  It made me believe that you can use
alias scopes and alias scopes list interchangeably with alias.scope and
noalias.  Both langref and the other testcase use scope lists so I went
looking.

Turns out using scope directly only happens to work by chance.  When
ScopedNoAliasAAResult::mayAliasInScopes traverses this as a scope list:

!1 = !{!1, !0, !"some scope"}

, the first entry is in fact a scope but only because the scope is
happened to be defined self-referentially to make it unique globally.

The remaining elements in the tuple (!0, !"some scope") are considered
as scopes but AliasScopeNode::getDomain will just bail on those without
any error.

This change avoids this ambiguity in the test but I've also been
wondering if we should issue some sort of a diagnostics.

Reviewers: dexonsmith, hfinkel

Subscribers: mssimpso, llvm-commits

Differential Revision: http://reviews.llvm.org/D16670

llvm-svn: 262841
2016-03-07 17:49:10 +00:00
..
AssumptionCache [PM] Actually add the new pass manager support for the assumption cache. 2015-01-22 21:53:09 +00:00
BasicAA [PM/AA] Port alias analysis evaluator to the new pass manager, and use 2016-02-20 03:46:03 +00:00
BlockFrequencyInfo Use getEdgeProbability() instead of getEdgeWeight() in BFI and remove getEdgeWeight() interfaces from MBPI. 2015-12-18 21:53:24 +00:00
BranchProbabilityInfo [BPI] Replace weights by probabilities in BPI. 2015-12-22 18:56:14 +00:00
CFLAliasAnalysis [PM/AA] Wire up CFLAA to the new pass manager fully, and port one of its 2016-02-20 03:52:02 +00:00
CallGraph [gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type 2015-12-26 07:54:32 +00:00
CostModel [AArch64] Reduce vector insert/extract cost for Kryo 2016-02-18 18:35:45 +00:00
Delinearization [SCEV] Mark AddExprs as nsw or nuw if legal 2015-10-22 19:57:19 +00:00
DemandedBits [DemandedBits] Revert r249687 due to PR26071 2016-02-03 15:05:06 +00:00
DependenceAnalysis Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
DivergenceAnalysis AMDGPU: Fix not handling new workitem intrinsics in DivergenceAnalysis 2016-02-11 05:32:51 +00:00
DominanceFrontier Another fix the testcase introduced by r261903 - Add the missing matches 2016-02-26 03:41:47 +00:00
Dominators Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
GlobalsModRef [GlobalsAA] Relax condition in checking globals as args to functions 2016-01-14 08:46:45 +00:00
LazyCallGraph [LCG] Construct an actual call graph with call-edge SCCs nested inside 2016-02-17 00:18:16 +00:00
Lint [WinEH] Delete the old landingpad implementation of Windows EH 2015-10-09 23:34:53 +00:00
LoopAccessAnalysis [SCEV][LAA] Re-commit r260085 and r260086, this time with a fix for the memory 2016-02-08 17:02:45 +00:00
LoopInfo [PM] Port LoopInfo to the new pass manager, adding both a LoopAnalysis 2015-01-20 10:58:50 +00:00
MemoryDependenceAnalysis [MDA] change BlockScanLimit into a command line option. 2015-07-21 21:50:39 +00:00
PostDominators Introduce analysis pass to compute PostDominators in the new pass manager. NFC 2016-02-25 17:54:07 +00:00
RegionInfo Introduce RegionInfoAnalysis, which compute Region Tree in the new PassManager. NFC 2016-02-25 17:54:25 +00:00
ScalarEvolution [SCEV] Prove no-overflow via constant ranges 2016-03-03 18:31:29 +00:00
ScopedNoAliasAA [ScopedNoAliasAA] Make test basic.ll less confusing 2016-03-07 17:49:10 +00:00
TypeBasedAliasAnalysis [PM/AA] Wire up TBAA to the new pass manager's registry and test it. 2016-02-20 04:04:52 +00:00
ValueTracking [ValueTracking] Remove dead code from an old experiment 2016-03-03 19:44:06 +00:00
alias-analysis-uses.ll Add an "addUsedAAAnalyses" helper function 2016-02-09 01:21:57 +00:00