X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAnalysis%2FAliasAnalysisCounter.cpp;h=d947220e078df51b6d1a87d88b3fc61ef758fa14;hb=4032eaf98c63b0fb1f2418a1cdc56b72bc76c329;hp=73956a15a8ceb108271f8bf05be8b7390f796342;hpb=791102fb1192ac9483274e54cbc42480c9b1af10;p=oota-llvm.git

diff --git a/lib/Analysis/AliasAnalysisCounter.cpp b/lib/Analysis/AliasAnalysisCounter.cpp
index 73956a15a8c..d947220e078 100644
--- a/lib/Analysis/AliasAnalysisCounter.cpp
+++ b/lib/Analysis/AliasAnalysisCounter.cpp
@@ -17,27 +17,26 @@
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Assembly/Writer.h"
 #include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 static cl::opt<bool>
-PrintAll("count-aa-print-all-queries", cl::ReallyHidden);
+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 VISIBILITY_HIDDEN AliasAnalysisCounter 
-      : public ModulePass, public AliasAnalysis {
-    unsigned No, May, Must;
+  class AliasAnalysisCounter : public ModulePass, public AliasAnalysis {
+    unsigned No, May, Partial, Must;
     unsigned NoMR, JustRef, JustMod, MR;
-    const char *Name;
     Module *M;
   public:
     static char ID; // Class identification, replacement for typeinfo
-    AliasAnalysisCounter() : ModulePass(&ID) {
-      No = May = Must = 0;
+    AliasAnalysisCounter() : ModulePass(ID) {
+      initializeAliasAnalysisCounterPass(*PassRegistry::getPassRegistry());
+      No = May = Partial = Must = 0;
       NoMR = JustRef = JustMod = MR = 0;
     }
 
@@ -46,18 +45,21 @@ namespace {
              << Val*100/Sum << "%)\n";
     }
     ~AliasAnalysisCounter() {
-      unsigned AASum = No+May+Must;
+      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: " << Name << "\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 << "%/" << Must*100/AASum<<"%\n\n";
+                 << May*100/AASum << "%/"
+                 << Partial*100/AASum << "%/"
+                 << Must*100/AASum<<"%\n\n";
         }
 
         errs() << "  " << MRSum    << " Total Mod/Ref Queries Performed\n";
@@ -76,7 +78,6 @@ namespace {
     bool runOnModule(Module &M) {
       this->M = &M;
       InitializeAliasAnalysis(this);
-      Name = dynamic_cast<Pass*>(&getAnalysis<AliasAnalysis>())->getPassName();
       return false;
     }
 
@@ -86,65 +87,62 @@ namespace {
       AU.setPreservesAll();
     }
 
-    // FIXME: We could count these too...
-    bool pointsToConstantMemory(const Value *P) {
-      return getAnalysis<AliasAnalysis>().pointsToConstantMemory(P);
-    }
-    bool doesNotAccessMemory(CallSite CS) {
-      return getAnalysis<AliasAnalysis>().doesNotAccessMemory(CS);
-    }
-    bool doesNotAccessMemory(Function *F) {
-      return getAnalysis<AliasAnalysis>().doesNotAccessMemory(F);
+    /// 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.
+    virtual void *getAdjustedAnalysisPointer(AnalysisID PI) {
+      if (PI == &AliasAnalysis::ID)
+        return (AliasAnalysis*)this;
+      return this;
     }
-    bool onlyReadsMemory(CallSite CS) {
-      return getAnalysis<AliasAnalysis>().onlyReadsMemory(CS);
-    }
-    bool onlyReadsMemory(Function *F) {
-      return getAnalysis<AliasAnalysis>().onlyReadsMemory(F);
+    
+    // FIXME: We could count these too...
+    bool pointsToConstantMemory(const Location &Loc, bool OrLocal) {
+      return getAnalysis<AliasAnalysis>().pointsToConstantMemory(Loc, OrLocal);
     }
 
-
     // Forwarding functions: just delegate to a real AA implementation, counting
     // the number of responses...
-    AliasResult alias(const Value *V1, unsigned V1Size,
-                      const Value *V2, unsigned V2Size);
+    AliasResult alias(const Location &LocA, const Location &LocB);
 
-    ModRefResult getModRefInfo(CallSite CS, Value *P, unsigned Size);
-    ModRefResult getModRefInfo(CallSite CS1, CallSite CS2) {
+    ModRefResult getModRefInfo(ImmutableCallSite CS,
+                               const Location &Loc);
+    ModRefResult getModRefInfo(ImmutableCallSite CS1,
+                               ImmutableCallSite CS2) {
       return AliasAnalysis::getModRefInfo(CS1,CS2);
     }
   };
 }
 
 char AliasAnalysisCounter::ID = 0;
-static RegisterPass<AliasAnalysisCounter>
-X("count-aa", "Count Alias Analysis Query Responses", false, true);
-static RegisterAnalysisGroup<AliasAnalysis> Y(X);
+INITIALIZE_AG_PASS(AliasAnalysisCounter, AliasAnalysis, "count-aa",
+                   "Count Alias Analysis Query Responses", false, true, false)
 
 ModulePass *llvm::createAliasAnalysisCounterPass() {
   return new AliasAnalysisCounter();
 }
 
 AliasAnalysis::AliasResult
-AliasAnalysisCounter::alias(const Value *V1, unsigned V1Size,
-                            const Value *V2, unsigned V2Size) {
-  AliasResult R = getAnalysis<AliasAnalysis>().alias(V1, V1Size, V2, V2Size);
+AliasAnalysisCounter::alias(const Location &LocA, const Location &LocB) {
+  AliasResult R = getAnalysis<AliasAnalysis>().alias(LocA, LocB);
 
   const char *AliasString;
   switch (R) {
   default: llvm_unreachable("Unknown alias type!");
   case NoAlias:   No++;   AliasString = "No alias"; break;
   case MayAlias:  May++;  AliasString = "May alias"; break;
+  case PartialAlias: Partial++; AliasString = "Partial alias"; break;
   case MustAlias: Must++; AliasString = "Must alias"; break;
   }
 
   if (PrintAll || (PrintAllFailures && R == MayAlias)) {
     errs() << AliasString << ":\t";
-    errs() << "[" << V1Size << "B] ";
-    WriteAsOperand(errs(), V1, true, M);
+    errs() << "[" << LocA.Size << "B] ";
+    WriteAsOperand(errs(), LocA.Ptr, true, M);
     errs() << ", ";
-    errs() << "[" << V2Size << "B] ";
-    WriteAsOperand(errs(), V2, true, M);
+    errs() << "[" << LocB.Size << "B] ";
+    WriteAsOperand(errs(), LocB.Ptr, true, M);
     errs() << "\n";
   }
 
@@ -152,8 +150,9 @@ AliasAnalysisCounter::alias(const Value *V1, unsigned V1Size,
 }
 
 AliasAnalysis::ModRefResult
-AliasAnalysisCounter::getModRefInfo(CallSite CS, Value *P, unsigned Size) {
-  ModRefResult R = getAnalysis<AliasAnalysis>().getModRefInfo(CS, P, Size);
+AliasAnalysisCounter::getModRefInfo(ImmutableCallSite CS,
+                                    const Location &Loc) {
+  ModRefResult R = getAnalysis<AliasAnalysis>().getModRefInfo(CS, Loc);
 
   const char *MRString;
   switch (R) {
@@ -166,9 +165,9 @@ AliasAnalysisCounter::getModRefInfo(CallSite CS, Value *P, unsigned Size) {
 
   if (PrintAll || (PrintAllFailures && R == ModRef)) {
     errs() << MRString << ":  Ptr: ";
-    errs() << "[" << Size << "B] ";
-    WriteAsOperand(errs(), P, true, M);
-    errs() << "\t<->" << *CS.getInstruction();
+    errs() << "[" << Loc.Size << "B] ";
+    WriteAsOperand(errs(), Loc.Ptr, true, M);
+    errs() << "\t<->" << *CS.getInstruction() << '\n';
   }
   return R;
 }