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-rw-r--r--llvm/include/llvm/Analysis/AliasAnalysisCounter.h124
-rw-r--r--llvm/include/llvm/Analysis/Passes.h7
-rw-r--r--llvm/include/llvm/LinkAllPasses.h1
-rw-r--r--llvm/lib/Analysis/AliasAnalysisCounter.cpp93
4 files changed, 126 insertions, 99 deletions
diff --git a/llvm/include/llvm/Analysis/AliasAnalysisCounter.h b/llvm/include/llvm/Analysis/AliasAnalysisCounter.h
new file mode 100644
index 00000000000..7a4e04b513d
--- /dev/null
+++ b/llvm/include/llvm/Analysis/AliasAnalysisCounter.h
@@ -0,0 +1,124 @@
+//===- AliasAnalysisCounter.h - Alias Analysis Query Counter ----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This declares an alias analysis which counts and prints queries made
+/// through it. By inserting this between other AAs you can track when specific
+/// layers of LLVM's AA get queried.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ANALYSIS_ALIASANALYSISCOUNTER_H
+#define LLVM_ANALYSIS_ALIASANALYSISCOUNTER_H
+
+#include "llvm/Analysis/AliasAnalysis.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Pass.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+
+ class AliasAnalysisCounter : public ModulePass, public AliasAnalysis {
+ unsigned No, May, Partial, Must;
+ unsigned NoMR, JustRef, JustMod, MR;
+ Module *M;
+ public:
+ static char ID; // Class identification, replacement for typeinfo
+ AliasAnalysisCounter() : ModulePass(ID) {
+ initializeAliasAnalysisCounterPass(*PassRegistry::getPassRegistry());
+ No = May = Partial = Must = 0;
+ NoMR = JustRef = JustMod = MR = 0;
+ }
+
+ void printLine(const char *Desc, unsigned Val, unsigned Sum) {
+ errs() << " " << Val << " " << Desc << " responses ("
+ << Val*100/Sum << "%)\n";
+ }
+ ~AliasAnalysisCounter() override {
+ unsigned AASum = No+May+Partial+Must;
+ unsigned MRSum = NoMR+JustRef+JustMod+MR;
+ if (AASum + MRSum) { // Print a report if any counted queries occurred...
+ errs() << "\n===== Alias Analysis Counter Report =====\n"
+ << " Analysis counted:\n"
+ << " " << AASum << " Total Alias Queries Performed\n";
+ if (AASum) {
+ printLine("no alias", No, AASum);
+ printLine("may alias", May, AASum);
+ printLine("partial alias", Partial, AASum);
+ printLine("must alias", Must, AASum);
+ errs() << " Alias Analysis Counter Summary: " << No*100/AASum << "%/"
+ << May*100/AASum << "%/"
+ << Partial*100/AASum << "%/"
+ << Must*100/AASum<<"%\n\n";
+ }
+
+ errs() << " " << MRSum << " Total MRI_Mod/MRI_Ref Queries Performed\n";
+ if (MRSum) {
+ printLine("no mod/ref", NoMR, MRSum);
+ printLine("ref", JustRef, MRSum);
+ printLine("mod", JustMod, MRSum);
+ printLine("mod/ref", MR, MRSum);
+ errs() << " MRI_Mod/MRI_Ref Analysis Counter Summary: "
+ << NoMR * 100 / MRSum << "%/" << JustRef * 100 / MRSum << "%/"
+ << JustMod * 100 / MRSum << "%/" << MR * 100 / MRSum
+ << "%\n\n";
+ }
+ }
+ }
+
+ bool runOnModule(Module &M) override {
+ this->M = &M;
+ InitializeAliasAnalysis(this, &M.getDataLayout());
+ return false;
+ }
+
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
+ AliasAnalysis::getAnalysisUsage(AU);
+ AU.addRequired<AliasAnalysis>();
+ AU.setPreservesAll();
+ }
+
+ /// getAdjustedAnalysisPointer - This method is used when a pass implements
+ /// an analysis interface through multiple inheritance. If needed, it
+ /// should override this to adjust the this pointer as needed for the
+ /// specified pass info.
+ void *getAdjustedAnalysisPointer(AnalysisID PI) override {
+ if (PI == &AliasAnalysis::ID)
+ return (AliasAnalysis*)this;
+ return this;
+ }
+
+ // FIXME: We could count these too...
+ bool pointsToConstantMemory(const MemoryLocation &Loc,
+ bool OrLocal) override {
+ return getAnalysis<AliasAnalysis>().pointsToConstantMemory(Loc, OrLocal);
+ }
+
+ // Forwarding functions: just delegate to a real AA implementation, counting
+ // the number of responses...
+ AliasResult alias(const MemoryLocation &LocA,
+ const MemoryLocation &LocB) override;
+
+ ModRefInfo getModRefInfo(ImmutableCallSite CS,
+ const MemoryLocation &Loc) override;
+ ModRefInfo getModRefInfo(ImmutableCallSite CS1,
+ ImmutableCallSite CS2) override {
+ return AliasAnalysis::getModRefInfo(CS1,CS2);
+ }
+ };
+
+ //===--------------------------------------------------------------------===//
+ //
+ // createAliasAnalysisCounterPass - This pass counts alias queries and how the
+ // alias analysis implementation responds.
+ //
+ ModulePass *createAliasAnalysisCounterPass();
+
+}
+
+#endif
diff --git a/llvm/include/llvm/Analysis/Passes.h b/llvm/include/llvm/Analysis/Passes.h
index becaa7e1d69..c85d751a810 100644
--- a/llvm/include/llvm/Analysis/Passes.h
+++ b/llvm/include/llvm/Analysis/Passes.h
@@ -33,13 +33,6 @@ namespace llvm {
//===--------------------------------------------------------------------===//
//
- // createAliasAnalysisCounterPass - This pass counts alias queries and how the
- // alias analysis implementation responds.
- //
- ModulePass *createAliasAnalysisCounterPass();
-
- //===--------------------------------------------------------------------===//
- //
// createAAEvalPass - This pass implements a simple N^2 alias analysis
// accuracy evaluator.
//
diff --git a/llvm/include/llvm/LinkAllPasses.h b/llvm/include/llvm/LinkAllPasses.h
index 87ec4468d6f..4b58ee3ab28 100644
--- a/llvm/include/llvm/LinkAllPasses.h
+++ b/llvm/include/llvm/LinkAllPasses.h
@@ -17,6 +17,7 @@
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasSetTracker.h"
+#include "llvm/Analysis/AliasAnalysisCounter.h"
#include "llvm/Analysis/BasicAliasAnalysis.h"
#include "llvm/Analysis/CallPrinter.h"
#include "llvm/Analysis/DomPrinter.h"
diff --git a/llvm/lib/Analysis/AliasAnalysisCounter.cpp b/llvm/lib/Analysis/AliasAnalysisCounter.cpp
index 6c53b41d3a1..821badeb42f 100644
--- a/llvm/lib/Analysis/AliasAnalysisCounter.cpp
+++ b/llvm/lib/Analysis/AliasAnalysisCounter.cpp
@@ -12,7 +12,7 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/Analysis/Passes.h"
+#include "llvm/Analysis/AliasAnalysisCounter.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
@@ -27,97 +27,6 @@ PrintAll("count-aa-print-all-queries", cl::ReallyHidden, cl::init(true));
static cl::opt<bool>
PrintAllFailures("count-aa-print-all-failed-queries", cl::ReallyHidden);
-namespace {
- class AliasAnalysisCounter : public ModulePass, public AliasAnalysis {
- unsigned No, May, Partial, Must;
- unsigned NoMR, JustRef, JustMod, MR;
- Module *M;
- public:
- static char ID; // Class identification, replacement for typeinfo
- AliasAnalysisCounter() : ModulePass(ID) {
- initializeAliasAnalysisCounterPass(*PassRegistry::getPassRegistry());
- No = May = Partial = Must = 0;
- NoMR = JustRef = JustMod = MR = 0;
- }
-
- void printLine(const char *Desc, unsigned Val, unsigned Sum) {
- errs() << " " << Val << " " << Desc << " responses ("
- << Val*100/Sum << "%)\n";
- }
- ~AliasAnalysisCounter() override {
- unsigned AASum = No+May+Partial+Must;
- unsigned MRSum = NoMR+JustRef+JustMod+MR;
- if (AASum + MRSum) { // Print a report if any counted queries occurred...
- errs() << "\n===== Alias Analysis Counter Report =====\n"
- << " Analysis counted:\n"
- << " " << AASum << " Total Alias Queries Performed\n";
- if (AASum) {
- printLine("no alias", No, AASum);
- printLine("may alias", May, AASum);
- printLine("partial alias", Partial, AASum);
- printLine("must alias", Must, AASum);
- errs() << " Alias Analysis Counter Summary: " << No*100/AASum << "%/"
- << May*100/AASum << "%/"
- << Partial*100/AASum << "%/"
- << Must*100/AASum<<"%\n\n";
- }
-
- errs() << " " << MRSum << " Total MRI_Mod/MRI_Ref Queries Performed\n";
- if (MRSum) {
- printLine("no mod/ref", NoMR, MRSum);
- printLine("ref", JustRef, MRSum);
- printLine("mod", JustMod, MRSum);
- printLine("mod/ref", MR, MRSum);
- errs() << " MRI_Mod/MRI_Ref Analysis Counter Summary: "
- << NoMR * 100 / MRSum << "%/" << JustRef * 100 / MRSum << "%/"
- << JustMod * 100 / MRSum << "%/" << MR * 100 / MRSum
- << "%\n\n";
- }
- }
- }
-
- bool runOnModule(Module &M) override {
- this->M = &M;
- InitializeAliasAnalysis(this, &M.getDataLayout());
- return false;
- }
-
- void getAnalysisUsage(AnalysisUsage &AU) const override {
- AliasAnalysis::getAnalysisUsage(AU);
- AU.addRequired<AliasAnalysis>();
- AU.setPreservesAll();
- }
-
- /// getAdjustedAnalysisPointer - This method is used when a pass implements
- /// an analysis interface through multiple inheritance. If needed, it
- /// should override this to adjust the this pointer as needed for the
- /// specified pass info.
- void *getAdjustedAnalysisPointer(AnalysisID PI) override {
- if (PI == &AliasAnalysis::ID)
- return (AliasAnalysis*)this;
- return this;
- }
-
- // FIXME: We could count these too...
- bool pointsToConstantMemory(const MemoryLocation &Loc,
- bool OrLocal) override {
- return getAnalysis<AliasAnalysis>().pointsToConstantMemory(Loc, OrLocal);
- }
-
- // Forwarding functions: just delegate to a real AA implementation, counting
- // the number of responses...
- AliasResult alias(const MemoryLocation &LocA,
- const MemoryLocation &LocB) override;
-
- ModRefInfo getModRefInfo(ImmutableCallSite CS,
- const MemoryLocation &Loc) override;
- ModRefInfo getModRefInfo(ImmutableCallSite CS1,
- ImmutableCallSite CS2) override {
- return AliasAnalysis::getModRefInfo(CS1,CS2);
- }
- };
-}
-
char AliasAnalysisCounter::ID = 0;
INITIALIZE_AG_PASS(AliasAnalysisCounter, AliasAnalysis, "count-aa",
"Count Alias Analysis Query Responses", false, true, false)
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