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delinearization of arrays

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194527 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sebastian Pop
2013-11-12 22:47:20 +00:00
parent b8fc659c8e
commit 5230ad61fd
20 changed files with 1423 additions and 1 deletions
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4
include/llvm/Analysis/DependenceAnalysis.h
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@@ -908,6 +908,10 @@ namespace llvm {
/// based on the current constraint.
void updateDirection(Dependence::DVEntry &Level,
const Constraint &CurConstraint) const;
bool tryDelinearize(const SCEV *SrcSCEV, const SCEV *DstSCEV,
SmallVectorImpl<Subscript> &Pair) const;
public:
static char ID; // Class identification, replacement for typeinfo
DependenceAnalysis() : FunctionPass(ID) {

7
include/llvm/Analysis/Passes.h
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@@ -134,6 +134,13 @@ namespace llvm {
//
FunctionPass *createCostModelAnalysisPass();
//===--------------------------------------------------------------------===//
//
// createDelinearizationPass - This pass implements attempts to restore
// multidimensional array indices from linearized expressions.
//
FunctionPass *createDelinearizationPass();
//===--------------------------------------------------------------------===//
//
// Minor pass prototypes, allowing us to expose them through bugpoint and

8
include/llvm/Analysis/ScalarEvolutionExpressions.h
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@@ -351,8 +351,14 @@ namespace llvm {
static inline bool classof(const SCEV *S) {
return S->getSCEVType() == scAddRecExpr;
}
};
/// Splits the SCEV into two vectors of SCEVs representing the subscripts
/// and sizes of an array access. Returns the remainder of the
/// delinearization that is the offset start of the array.
const SCEV *delinearize(ScalarEvolution &SE,
SmallVectorImpl<const SCEV *> &Subscripts,
SmallVectorImpl<const SCEV *> &Sizes) const;
};
//===--------------------------------------------------------------------===//
/// SCEVSMaxExpr - This class represents a signed maximum selection.

1
include/llvm/InitializePasses.h
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@@ -102,6 +102,7 @@ void initializeDSEPass(PassRegistry&);
void initializeDebugIRPass(PassRegistry&);
void initializeDeadInstEliminationPass(PassRegistry&);
void initializeDeadMachineInstructionElimPass(PassRegistry&);
void initializeDelinearizationPass(PassRegistry &);
void initializeDependenceAnalysisPass(PassRegistry&);
void initializeDomOnlyPrinterPass(PassRegistry&);
void initializeDomOnlyViewerPass(PassRegistry&);