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Add LDA statistics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77358 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -18,6 +18,7 @@
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "lda"
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#define DEBUG_TYPE "lda"
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#include "llvm/ADT/Statistic.h"
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#include "llvm/Analysis/AliasAnalysis.h"
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#include "llvm/Analysis/AliasAnalysis.h"
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#include "llvm/Analysis/LoopDependenceAnalysis.h"
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#include "llvm/Analysis/LoopDependenceAnalysis.h"
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#include "llvm/Analysis/LoopPass.h"
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#include "llvm/Analysis/LoopPass.h"
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@ -30,6 +31,12 @@
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#include "llvm/Target/TargetData.h"
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#include "llvm/Target/TargetData.h"
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using namespace llvm;
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using namespace llvm;
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STATISTIC(NumAnswered, "Number of dependence queries answered");
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STATISTIC(NumAnalysed, "Number of distinct dependence pairs analysed");
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STATISTIC(NumDependent, "Number of pairs with dependent accesses");
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STATISTIC(NumIndependent, "Number of pairs with independent accesses");
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STATISTIC(NumUnknown, "Number of pairs with unknown accesses");
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LoopPass *llvm::createLoopDependenceAnalysisPass() {
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LoopPass *llvm::createLoopDependenceAnalysisPass() {
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return new LoopDependenceAnalysis();
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return new LoopDependenceAnalysis();
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}
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}
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@ -148,11 +155,18 @@ void LoopDependenceAnalysis::analysePair(DependencePair *P) const {
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bool LoopDependenceAnalysis::depends(Value *A, Value *B) {
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bool LoopDependenceAnalysis::depends(Value *A, Value *B) {
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assert(isDependencePair(A, B) && "Values form no dependence pair!");
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assert(isDependencePair(A, B) && "Values form no dependence pair!");
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++NumAnswered;
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DependencePair *p;
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DependencePair *p;
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if (!findOrInsertDependencePair(A, B, p)) {
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if (!findOrInsertDependencePair(A, B, p)) {
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// The pair is not cached, so analyse it.
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// The pair is not cached, so analyse it.
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++NumAnalysed;
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analysePair(p);
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analysePair(p);
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switch (p->Result) {
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case Dependent: ++NumDependent; break;
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case Independent: ++NumIndependent; break;
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case Unknown: ++NumUnknown; break;
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}
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}
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}
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return p->Result != Independent;
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return p->Result != Independent;
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}
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}
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