#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 {
+ class AliasAnalysisCounter : public ModulePass, public AliasAnalysis {
unsigned No, May, Must;
unsigned NoMR, JustRef, JustMod, MR;
- const char *Name;
Module *M;
public:
static char ID; // Class identification, replacement for typeinfo
- AliasAnalysisCounter() : ModulePass(&ID) {
+ AliasAnalysisCounter() : ModulePass(ID) {
No = May = Must = 0;
NoMR = JustRef = JustMod = MR = 0;
}
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);
bool runOnModule(Module &M) {
this->M = &M;
InitializeAliasAnalysis(this);
- Name = dynamic_cast<Pass*>(&getAnalysis<AliasAnalysis>())->getPassName();
return false;
}
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) {
+ return getAnalysis<AliasAnalysis>().pointsToConstantMemory(Loc);
}
-
// 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) {
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";
}
}
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) {
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;
}