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24473120a2
llvm-6502/include/llvm/Analysis
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Stepan Dyatkovskiy 24473120a2 SwitchInst refactoring. 
The purpose of refactoring is to hide operand roles from SwitchInst user (programmer). If you want to play with operands directly, probably you will need lower level methods than SwitchInst ones (TerminatorInst or may be User). After this patch we can reorganize SwitchInst operands and successors as we want.

What was done:

1. Changed semantics of index inside the getCaseValue method:
getCaseValue(0) means "get first case", not a condition. Use getCondition() if you want to resolve the condition. I propose don't mix SwitchInst case indexing with low level indexing (TI successors indexing, User's operands indexing), since it may be dangerous.
2. By the same reason findCaseValue(ConstantInt*) returns actual number of case value. 0 means first case, not default. If there is no case with given value, ErrorIndex will returned.
3. Added getCaseSuccessor method. I propose to avoid usage of TerminatorInst::getSuccessor if you want to resolve case successor BB. Use getCaseSuccessor instead, since internal SwitchInst organization of operands/successors is hidden and may be changed in any moment.
4. Added resolveSuccessorIndex and resolveCaseIndex. The main purpose of these methods is to see how case successors are really mapped in TerminatorInst.
4.1 "resolveSuccessorIndex" was created if you need to level down from SwitchInst to TerminatorInst. It returns TerminatorInst's successor index for given case successor.
4.2 "resolveCaseIndex" converts low level successors index to case index that curresponds to the given successor.

Note: There are also related compatability fix patches for dragonegg, klee, llvm-gcc-4.0, llvm-gcc-4.2, safecode, clang.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149481 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01 07:49:51 +00:00
..
AliasAnalysis.h Fix extra whitespace in comment. 2011-10-15 19:36:45 +00:00
AliasSetTracker.h
BlockFrequencyImpl.h Add some constantness to BranchProbabilityInfo and BlockFrequnencyInfo. 2011-12-20 20:03:10 +00:00
BlockFrequencyInfo.h Add some constantness to BranchProbabilityInfo and BlockFrequnencyInfo. 2011-12-20 20:03:10 +00:00
BranchProbabilityInfo.h Remove return heuristics from the static branch probabilities, and 2011-10-24 12:01:08 +00:00
CallGraph.h
CaptureTracking.h Move includes to the .cpp file. 2012-01-17 22:16:31 +00:00
CFGPrinter.h SwitchInst refactoring. 2012-02-01 07:49:51 +00:00
CodeMetrics.h Fix grammar error noticed by Duncan. 2011-12-29 02:15:06 +00:00
ConstantFolding.h Split the interesting bits of ConstantFoldLoadThroughGEPConstantExpr 2012-01-24 05:43:50 +00:00
ConstantsScanner.h
DebugInfo.h Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch 2011-12-20 02:50:00 +00:00
DIBuilder.h Add a new wrapper node for a DILexicalBlock that encapsulates it and a 2011-10-11 22:59:11 +00:00
DominanceFrontier.h Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch 2011-12-20 02:50:00 +00:00
DominatorInternals.h Change the Dominators recalculate() function to only rely on GraphTraits 2011-12-05 19:17:04 +00:00
Dominators.h SCEVExpander fixes. Affects LSR and indvars. 2012-01-20 07:41:13 +00:00
DomPrinter.h
DOTGraphTraitsPass.h Remove all remaining uses of Value::getNameStr(). 2011-11-15 16:27:03 +00:00
FindUsedTypes.h
InlineCost.h Make headers standalone. 2011-11-14 17:45:03 +00:00
InstructionSimplify.h Propagate TargetLibraryInfo throughout ConstantFolding.cpp and 2011-12-01 03:08:23 +00:00
Interval.h
IntervalIterator.h
IntervalPartition.h
IVUsers.h Put all IVUsers in the processed set. Allow querying IVUsers with isIVUserOrOperand. 2012-01-06 21:41:55 +00:00
LazyValueInfo.h Fix a few more places where TargetData/TargetLibraryInfo is not being passed. 2011-12-02 01:26:24 +00:00
LibCallAliasAnalysis.h
LibCallSemantics.h
Lint.h
Loads.h
LoopDependenceAnalysis.h
LoopInfo.h Simplify more DenseMap.find users. 2012-01-04 21:41:24 +00:00
LoopIterator.h Cleanup. Remove an extraneous GraphTraits specialization. 2011-08-10 22:55:39 +00:00
LoopPass.h Reapply r138695. Fix PassManager stack depths. 2011-08-29 17:07:00 +00:00
MemoryBuiltins.h
MemoryDependenceAnalysis.h Refactor capture tracking (which already had a couple flags for whether returns 2011-11-14 22:49:42 +00:00
Passes.h
PathNumbering.h
PathProfileInfo.h
PHITransAddr.h Propagate TargetLibraryInfo throughout ConstantFolding.cpp and 2011-12-01 03:08:23 +00:00
PostDominators.h
ProfileInfo.h
ProfileInfoLoader.h
ProfileInfoTypes.h
RegionInfo.h Missed some users of Value::getNameStr. 2011-11-15 18:30:06 +00:00
RegionIterator.h
RegionPass.h Reapply r138695. Fix PassManager stack depths. 2011-08-29 17:07:00 +00:00
RegionPrinter.h
ScalarEvolution.h Clarified the SCEV getSmallConstantTripCount interface with in-your-face comments. 2012-01-11 06:52:55 +00:00
ScalarEvolutionExpander.h SCEVExpander fixes. Affects LSR and indvars. 2012-01-20 07:41:13 +00:00
ScalarEvolutionExpressions.h
ScalarEvolutionNormalization.h
SparsePropagation.h
Trace.h
ValueTracking.h Revert Chris' commits up to r149348 that started causing VMCoreTests unit test to fail. 2012-02-01 04:51:17 +00:00
Verifier.h