AliasAnalysisEvaluator.cpp revision cb19d679076724a86b62a1821e422ad69ab3d9c5
19798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner//===- AliasAnalysisEvaluator.cpp - Alias Analysis Accuracy Evaluator -----===// 2b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 5b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// This file was developed by the LLVM research group and is distributed under 6b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// the University of Illinois Open Source License. See LICENSE.TXT for details. 7b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 8b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell//===----------------------------------------------------------------------===// 99798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// 109798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// This file implements a simple N^2 alias analysis accuracy evaluator. 119798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// Basically, for each function in the program, it simply queries to see how the 129798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// alias analysis implementation answers alias queries between each pair of 139798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// pointers in the function. 149798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// 159798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// This is inspired and adapted from code by: Naveen Neelakantam, Francesco 169798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// Spadini, and Wojciech Stryjewski. 179798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner// 189798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner//===----------------------------------------------------------------------===// 199798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 209798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner#include "llvm/Function.h" 21bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman#include "llvm/iOther.h" 22bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman#include "llvm/iTerminators.h" 23bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman#include "llvm/Pass.h" 24cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner#include "llvm/DerivedTypes.h" 25bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman#include "llvm/Analysis/AliasAnalysis.h" 26638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner#include "llvm/Assembly/Writer.h" 27bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman#include "llvm/Support/InstIterator.h" 28638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner#include "Support/CommandLine.h" 29954da37bb492b519f5c31dc360f2a142567e08b4Reid Spencer#include <iostream> 301842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner#include <set> 31954da37bb492b519f5c31dc360f2a142567e08b4Reid Spencer 329a4f8ef78757882ceb2edbf90f37439deb112c88Chris Lattnerusing namespace llvm; 33d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 349798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattnernamespace { 350e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner cl::opt<bool> PrintAll("print-all-alias-modref-info", cl::ReallyHidden); 360e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner 37bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman cl::opt<bool> PrintNoAlias("print-no-aliases", cl::ReallyHidden); 38bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman cl::opt<bool> PrintMayAlias("print-may-aliases", cl::ReallyHidden); 39bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman cl::opt<bool> PrintMustAlias("print-must-aliases", cl::ReallyHidden); 40bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman 41bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman cl::opt<bool> PrintNoModRef("print-no-modref", cl::ReallyHidden); 42bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman cl::opt<bool> PrintMod("print-mod", cl::ReallyHidden); 43bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman cl::opt<bool> PrintRef("print-ref", cl::ReallyHidden); 44bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman cl::opt<bool> PrintModRef("print-modref", cl::ReallyHidden); 45638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner 469798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner class AAEval : public FunctionPass { 47bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman unsigned NoAlias, MayAlias, MustAlias; 48bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman unsigned NoModRef, Mod, Ref, ModRef; 499798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 509798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner public: 519798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner virtual void getAnalysisUsage(AnalysisUsage &AU) const { 529798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner AU.addRequired<AliasAnalysis>(); 539798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner AU.setPreservesAll(); 549798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner } 559798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 56bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman bool doInitialization(Module &M) { 57bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman NoAlias = MayAlias = MustAlias = 0; 58bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman NoModRef = Mod = Ref = ModRef = 0; 590e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner 600e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner if (PrintAll) { 610e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner PrintNoAlias = PrintMayAlias = PrintMustAlias = true; 620e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner PrintNoModRef = PrintMod = PrintRef = PrintModRef = true; 630e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner } 64bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman return false; 65bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman } 66bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman 679798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner bool runOnFunction(Function &F); 689798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner bool doFinalization(Module &M); 699798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner }; 709798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 719798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner RegisterOpt<AAEval> 729798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner X("aa-eval", "Exhaustive Alias Analysis Precision Evaluator"); 739798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner} 749798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 759a4f8ef78757882ceb2edbf90f37439deb112c88Chris Lattnerstatic inline void PrintResults(const char *Msg, bool P, Value *V1, Value *V2, 769a4f8ef78757882ceb2edbf90f37439deb112c88Chris Lattner Module *M) { 77638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner if (P) { 78638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner std::cerr << " " << Msg << ":\t"; 799a4f8ef78757882ceb2edbf90f37439deb112c88Chris Lattner WriteAsOperand(std::cerr, V1, true, true, M) << ", "; 809a4f8ef78757882ceb2edbf90f37439deb112c88Chris Lattner WriteAsOperand(std::cerr, V2, true, true, M) << "\n"; 81638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner } 82638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner} 83638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner 84ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattnerstatic inline void 85ad48cc71dcd218216e5e7df6d05c481946a65879Chris LattnerPrintModRefResults(const char *Msg, bool P, Instruction *I, Value *Ptr, 86ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner Module *M) { 87ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner if (P) { 88ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner std::cerr << " " << Msg << ": Ptr: "; 89ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner WriteAsOperand(std::cerr, Ptr, true, true, M); 90ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner std::cerr << "\t<->" << *I; 91ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner } 92ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner} 93ad48cc71dcd218216e5e7df6d05c481946a65879Chris Lattner 949798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattnerbool AAEval::runOnFunction(Function &F) { 959798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner AliasAnalysis &AA = getAnalysis<AliasAnalysis>(); 969798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 971842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner std::set<Value *> Pointers; 98bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::set<CallSite> CallSites; 999798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 1009798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner for (Function::aiterator I = F.abegin(), E = F.aend(); I != E; ++I) 1019798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner if (isa<PointerType>(I->getType())) // Add all pointer arguments 1021842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner Pointers.insert(I); 1039798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 1041842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I) { 1056ffe551f657c948d6a473a198ecbd1188bf9ce45Chris Lattner if (isa<PointerType>(I->getType())) // Add all pointer instructions 1066ffe551f657c948d6a473a198ecbd1188bf9ce45Chris Lattner Pointers.insert(&*I); 1076ffe551f657c948d6a473a198ecbd1188bf9ce45Chris Lattner for (User::op_iterator OI = (*I).op_begin(); OI != (*I).op_end(); ++OI) 1081842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner if (isa<PointerType>((*OI)->getType())) 1091842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner Pointers.insert(*OI); 1109798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 1116ffe551f657c948d6a473a198ecbd1188bf9ce45Chris Lattner CallSite CS = CallSite::get(&*I); 11285f5e11c065a7e236d31cf6ef20a20e9eeab7e95Misha Brukman if (CS.getInstruction()) CallSites.insert(CS); 113bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman } 114bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman 115bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman if (PrintNoAlias || PrintMayAlias || PrintMustAlias || 116bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman PrintNoModRef || PrintMod || PrintRef || PrintModRef) 1170e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner std::cerr << "Function: " << F.getName() << ": " << Pointers.size() 1180e872cb4707cbfc260279132e290ed595e47d2cdChris Lattner << " pointers, " << CallSites.size() << " call sites\n"; 119638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner 1209798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner // iterate over the worklist, and run the full (n^2)/2 disambiguations 1211842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner for (std::set<Value *>::iterator I1 = Pointers.begin(), E = Pointers.end(); 1229798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner I1 != E; ++I1) 1231842a90e0bf7b9137fb595828c6e07c5b629b2adChris Lattner for (std::set<Value *>::iterator I2 = Pointers.begin(); I2 != I1; ++I2) 124e4b3339b9cfcbd09b8e50693d351c375df14d68bChris Lattner switch (AA.alias(*I1, 0, *I2, 0)) { 125638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner case AliasAnalysis::NoAlias: 126bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman PrintResults("NoAlias", PrintNoAlias, *I1, *I2, F.getParent()); 127bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman ++NoAlias; break; 128638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner case AliasAnalysis::MayAlias: 129bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman PrintResults("MayAlias", PrintMayAlias, *I1, *I2, F.getParent()); 130bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman ++MayAlias; break; 131638b381713e32a0a9fb2a83c43b600683116df52Chris Lattner case AliasAnalysis::MustAlias: 132bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman PrintResults("MustAlias", PrintMustAlias, *I1, *I2, F.getParent()); 133bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman ++MustAlias; break; 1349798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner default: 1359798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner std::cerr << "Unknown alias query result!\n"; 1369798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner } 1379798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 138bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman // Mod/ref alias analysis: compare all pairs of calls and values 139bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman for (std::set<Value *>::iterator V = Pointers.begin(), Ve = Pointers.end(); 140cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner V != Ve; ++V) { 141cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner unsigned Size = 0; 142cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner if (const PointerType *PTy = dyn_cast<PointerType>((*V)->getType())) 143cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner if (!(Size = PTy->getElementType()->getPrimitiveSize())) 144cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner if (isa<PointerType>(PTy->getElementType())) 145cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner Size = 4; // This is a hack, but it's good enough for eval. 146cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner 147cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner if (Size) 148cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner for (std::set<CallSite>::iterator C = CallSites.begin(), 149cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner Ce = CallSites.end(); C != Ce; ++C) { 150cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner Instruction *I = C->getInstruction(); 151cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner switch (AA.getModRefInfo(*C, *V, Size)) { 152cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner case AliasAnalysis::NoModRef: 153cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner PrintModRefResults("NoModRef", PrintNoModRef, I, *V, F.getParent()); 154cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner ++NoModRef; break; 155cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner case AliasAnalysis::Mod: 156cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner PrintModRefResults(" Mod", PrintMod, I, *V, F.getParent()); 157cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner ++Mod; break; 158cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner case AliasAnalysis::Ref: 159cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner PrintModRefResults(" Ref", PrintRef, I, *V, F.getParent()); 160cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner ++Ref; break; 161cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner case AliasAnalysis::ModRef: 162cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner PrintModRefResults(" ModRef", PrintModRef, I, *V, F.getParent()); 163cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner ++ModRef; break; 164cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner default: 165cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner std::cerr << "Unknown alias query result!\n"; 166cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner } 167bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman } 168cb19d679076724a86b62a1821e422ad69ab3d9c5Chris Lattner } 169bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman 1709798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner return false; 1719798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner} 1729798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner 1739798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattnerbool AAEval::doFinalization(Module &M) { 174bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman unsigned AliasSum = NoAlias + MayAlias + MustAlias; 1759798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner std::cerr << "===== Alias Analysis Evaluator Report =====\n"; 176bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman if (AliasSum == 0) { 1772c1d7cf13b3c049c40627416315841ccbe6b123fChris Lattner std::cerr << " Alias Analysis Evaluator Summary: No pointers!\n"; 178bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman } else { 179bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << AliasSum << " Total Alias Queries Performed\n"; 180bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << NoAlias << " no alias responses (" 181bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << NoAlias*100/AliasSum << "%)\n"; 182bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << MayAlias << " may alias responses (" 183bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << MayAlias*100/AliasSum << "%)\n"; 184bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << MustAlias << " must alias responses (" 185bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << MustAlias*100/AliasSum <<"%)\n"; 186bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " Alias Analysis Evaluator Pointer Alias Summary: " 187bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << NoAlias*100/AliasSum << "%/" << MayAlias*100/AliasSum << "%/" 188bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << MustAlias*100/AliasSum << "%\n"; 189bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman } 190bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman 191bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman // Display the summary for mod/ref analysis 192bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman unsigned ModRefSum = NoModRef + Mod + Ref + ModRef; 193bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman if (ModRefSum == 0) { 194bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " Alias Analysis Mod/Ref Evaluator Summary: no mod/ref!\n"; 195bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman } else { 196bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << ModRefSum << " Total ModRef Queries Performed\n"; 197bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << NoModRef << " no mod/ref responses (" 198bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << NoModRef*100/ModRefSum << "%)\n"; 199bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << Mod << " mod responses (" 200bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << Mod*100/ModRefSum << "%)\n"; 201bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << Ref << " ref responses (" 202bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << Ref*100/ModRefSum <<"%)\n"; 203bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " " << ModRef << " mod & ref responses (" 204bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << ModRef*100/ModRefSum <<"%)\n"; 205bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman std::cerr << " Alias Analysis Evaluator Mod/Ref Summary: " 206bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << NoModRef*100/ModRefSum << "%/" << Mod*100/ModRefSum << "%/" 207bc1dbe95b87a1931f9187597da26a1810250a40aMisha Brukman << Ref*100/ModRefSum << "%/" << ModRef*100/ModRefSum << "%\n"; 2082c1d7cf13b3c049c40627416315841ccbe6b123fChris Lattner } 2092c1d7cf13b3c049c40627416315841ccbe6b123fChris Lattner 2109798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner return false; 2119798ca55e1c5e07b175dbb7bbae3b50dbffeec94Chris Lattner} 212