-//===------------------------------------------------------------------------===
+//===----------------------------------------------------------------------===//
// LLVM 'Analyze' UTILITY
//
// This utility is designed to print out the results of running various analysis
// analyze --help - Output information about command line switches
// analyze --quiet - Do not print analysis name before output
//
-//===------------------------------------------------------------------------===
+//===----------------------------------------------------------------------===//
#include "llvm/Instruction.h"
#include "llvm/Module.h"
#include "llvm/Method.h"
#include "llvm/iPHINode.h"
+#include "llvm/PassManager.h"
#include "llvm/Bytecode/Reader.h"
#include "llvm/Assembly/Parser.h"
+#include "llvm/Assembly/PrintModulePass.h"
#include "llvm/Analysis/Writer.h"
#include "llvm/Analysis/InstForest.h"
#include "llvm/Analysis/Dominators.h"
#include "Support/CommandLine.h"
#include <algorithm>
#include <iostream>
+
using std::cout;
-using std::cerr;
-using std::pair;
+using std::ostream;
+using std::string;
+
+static Module *CurrentModule;
-static void PrintMethod(Method *M) {
- cout << M;
+static void operator<<(ostream &O, const FindUsedTypes &FUT) {
+ FUT.printTypes(cout, CurrentModule);
}
-static void PrintIntervalPartition(Method *M) {
- cout << cfg::IntervalPartition(M);
+static void operator<<(ostream &O, const FindUnsafePointerTypes &FUPT) {
+ FUPT.printResults(CurrentModule, cout);
}
-static void PrintClassifiedExprs(Method *M) {
- cout << "Classified expressions for: " << M->getName() << "\n";
- Method::inst_iterator I = M->inst_begin(), E = M->inst_end();
- for (; I != E; ++I) {
- cout << *I;
-
- if ((*I)->getType() == Type::VoidTy) continue;
- analysis::ExprType R = analysis::ClassifyExpression(*I);
- if (R.Var == *I) continue; // Doesn't tell us anything
-
- cout << "\t\tExpr =";
- switch (R.ExprTy) {
- case analysis::ExprType::ScaledLinear:
- WriteAsOperand(cout << "(", (Value*)R.Scale) << " ) *";
- // fall through
- case analysis::ExprType::Linear:
- WriteAsOperand(cout << "(", R.Var) << " )";
- if (R.Offset == 0) break;
- else cout << " +";
- // fall through
- case analysis::ExprType::Constant:
- if (R.Offset) WriteAsOperand(cout, (Value*)R.Offset); else cout << " 0";
- break;
- }
- cout << "\n\n";
+
+
+template <class PassType, class PassName>
+class PassPrinter; // Do not implement
+
+template <class PassName>
+class PassPrinter<Pass, PassName> : public Pass {
+ const string Message;
+ const AnalysisID ID;
+public:
+ PassPrinter(const string &M, AnalysisID id) : Message(M), ID(id) {}
+
+ virtual bool run(Module *M) {
+ cout << Message << "\n" << getAnalysis<PassName>(ID);
+ return false;
}
-}
-static void PrintInductionVariables(Method *M) {
- cfg::LoopInfo LI(M);
- for (Method::inst_iterator I = M->inst_begin(), E = M->inst_end();
- I != E; ++I)
- if (PHINode *PN = dyn_cast<PHINode>(*I)) {
- InductionVariable IV(PN, &LI);
- if (IV.InductionType != InductionVariable::Unknown)
- cout << IV;
- }
-}
+ virtual void getAnalysisUsageInfo(Pass::AnalysisSet &Required,
+ Pass::AnalysisSet &Destroyed,
+ Pass::AnalysisSet &Provided) {
+ Required.push_back(ID);
+ }
+};
+template <class PassName>
+class PassPrinter<MethodPass, PassName> : public MethodPass {
+ const string Message;
+ const AnalysisID ID;
+public:
+ PassPrinter(const string &M, AnalysisID id) : Message(M), ID(id) {}
+
+ virtual bool runOnMethod(Method *M) {
+ cout << Message << " on method '" << M->getName() << "'\n"
+ << getAnalysis<PassName>(ID);
+ return false;
+ }
-static void PrintInstForest(Method *M) {
- cout << analysis::InstForest<char>(M);
-}
-static void PrintLoops(Method *M) {
- cout << cfg::LoopInfo(M);
-}
-static void PrintCallGraph(Module *M) {
- cout << cfg::CallGraph(M);
-}
+ virtual void getAnalysisUsageInfo(Pass::AnalysisSet &Required,
+ Pass::AnalysisSet &Destroyed,
+ Pass::AnalysisSet &Provided) {
+ Required.push_back(ID);
+ }
+};
-static void PrintUnsafePtrTypes(Module *M) {
- FindUnsafePointerTypes FUPT;
- FUPT.run(M);
- FUPT.printResults(M, cout);
-}
-static void PrintUsedTypes(Module *M) {
- FindUsedTypes FUT;
- FUT.run(M);
- FUT.printTypes(cout, M);
-}
-static void PrintDominatorSets(Method *M) {
- cout << cfg::DominatorSet(M);
+template <class PassType, class PassName, AnalysisID &ID>
+Pass *New(const string &Message) {
+ return new PassPrinter<PassType, PassName>(Message, ID);
}
-static void PrintImmediateDominators(Method *M) {
- cout << cfg::ImmediateDominators(M);
-}
-static void PrintDominatorTree(Method *M) {
- cout << cfg::DominatorTree(M);
-}
-static void PrintDominanceFrontier(Method *M) {
- cout << cfg::DominanceFrontier(M);
+template <class PassType, class PassName>
+Pass *New(const string &Message) {
+ return new PassPrinter<PassType, PassName>(Message, PassName::ID);
}
-static void PrintPostDominatorSets(Method *M) {
- cout << cfg::DominatorSet(M, true);
-}
-static void PrintImmediatePostDoms(Method *M) {
- cout << cfg::ImmediateDominators(cfg::DominatorSet(M, true));
+
+
+Pass *NewPrintMethod(const string &Message) {
+ return new PrintMethodPass(Message, &std::cout);
}
-static void PrintPostDomTree(Method *M) {
- cout << cfg::DominatorTree(cfg::DominatorSet(M, true));
+Pass *NewPrintModule(const string &Message) {
+ return new PrintModulePass(&std::cout);
}
-static void PrintPostDomFrontier(Method *M) {
- cout << cfg::DominanceFrontier(cfg::DominatorSet(M, true));
+
+struct InstForest : public MethodPass {
+ void doit(Method *M) {
+ cout << analysis::InstForest<char>(M);
+ }
+};
+
+struct IndVars : public MethodPass {
+ void doit(Method *M) {
+ cfg::LoopInfo &LI = getAnalysis<cfg::LoopInfo>();
+ for (Method::inst_iterator I = M->inst_begin(), E = M->inst_end();
+ I != E; ++I)
+ if (PHINode *PN = dyn_cast<PHINode>(*I)) {
+ InductionVariable IV(PN, &LI);
+ if (IV.InductionType != InductionVariable::Unknown)
+ cout << IV;
+ }
+ }
+
+ void getAnalysisUsageInfo(Pass::AnalysisSet &Req,
+ Pass::AnalysisSet &, Pass::AnalysisSet &) {
+ Req.push_back(cfg::LoopInfo::ID);
+ }
+};
+
+struct Exprs : public MethodPass {
+ static void doit(Method *M) {
+ cout << "Classified expressions for: " << M->getName() << "\n";
+ Method::inst_iterator I = M->inst_begin(), E = M->inst_end();
+ for (; I != E; ++I) {
+ cout << *I;
+
+ if ((*I)->getType() == Type::VoidTy) continue;
+ analysis::ExprType R = analysis::ClassifyExpression(*I);
+ if (R.Var == *I) continue; // Doesn't tell us anything
+
+ cout << "\t\tExpr =";
+ switch (R.ExprTy) {
+ case analysis::ExprType::ScaledLinear:
+ WriteAsOperand(cout << "(", (Value*)R.Scale) << " ) *";
+ // fall through
+ case analysis::ExprType::Linear:
+ WriteAsOperand(cout << "(", R.Var) << " )";
+ if (R.Offset == 0) break;
+ else cout << " +";
+ // fall through
+ case analysis::ExprType::Constant:
+ if (R.Offset) WriteAsOperand(cout, (Value*)R.Offset); else cout << " 0";
+ break;
+ }
+ cout << "\n\n";
+ }
+ }
+};
+
+
+template<class TraitClass>
+class PrinterPass : public TraitClass {
+ const string Message;
+public:
+ PrinterPass(const string &M) : Message(M) {}
+
+ virtual bool runOnMethod(Method *M) {
+ cout << Message << " on method '" << M->getName() << "'\n";
+
+ TraitClass::doit(M);
+ return false;
+ }
+};
+
+
+template<class PassClass>
+Pass *Create(const string &Message) {
+ return new PassClass(Message);
}
+
enum Ans {
- PassDone, // Unique Marker
- print, intervals, exprclassify, instforest, loops, indvars, callgraph,
- printusedtypes, unsafepointertypes,
+ // global analyses
+ print, intervals, exprs, instforest, loops, indvars,
+
+ // ip analyses
+ printmodule, callgraph, printusedtypes, unsafepointertypes,
domset, idom, domtree, domfrontier,
postdomset, postidom, postdomtree, postdomfrontier,
cl::Flag Quiet ("q", "Don't print analysis pass names");
cl::Alias QuietA ("quiet", "Alias for -q", cl::NoFlags, Quiet);
cl::EnumList<enum Ans> AnalysesList(cl::NoFlags,
- clEnumVal(print , "Print each Method"),
+ clEnumVal(print , "Print each method"),
clEnumVal(intervals , "Print Interval Partitions"),
- clEnumVal(exprclassify , "Classify Expressions"),
+ clEnumVal(exprs , "Classify Expressions"),
clEnumVal(instforest , "Print Instruction Forest"),
clEnumVal(loops , "Print Loops"),
clEnumVal(indvars , "Print Induction Variables"),
+
+ clEnumVal(printmodule , "Print entire module"),
clEnumVal(callgraph , "Print Call Graph"),
clEnumVal(printusedtypes , "Print Types Used by Module"),
clEnumVal(unsafepointertypes, "Print Unsafe Pointer Types"),
clEnumVal(postdomfrontier, "Print Postdominance Frontier"),
0);
+
struct {
enum Ans AnID;
- void (*AnPtr)(Method *M);
-} MethAnTable[] = {
- { print , PrintMethod },
- { intervals , PrintIntervalPartition },
- { exprclassify , PrintClassifiedExprs },
- { instforest , PrintInstForest },
- { loops , PrintLoops },
- { indvars , PrintInductionVariables },
-
- { domset , PrintDominatorSets },
- { idom , PrintImmediateDominators },
- { domtree , PrintDominatorTree },
- { domfrontier , PrintDominanceFrontier },
-
- { postdomset , PrintPostDominatorSets },
- { postidom , PrintImmediatePostDoms },
- { postdomtree , PrintPostDomTree },
- { postdomfrontier, PrintPostDomFrontier },
-};
-
-pair<enum Ans, void (*)(Module *)> ModAnTable[] = {
- pair<enum Ans, void (*)(Module *)>(callgraph , PrintCallGraph),
- pair<enum Ans, void (*)(Module *)>(printusedtypes , PrintUsedTypes),
- pair<enum Ans, void (*)(Module *)>(unsafepointertypes, PrintUnsafePtrTypes),
+ Pass *(*PassConstructor)(const string &Message);
+} AnTable[] = {
+ // Global analyses
+ { print , NewPrintMethod },
+ { intervals , New<MethodPass, cfg::IntervalPartition> },
+ { loops , New<MethodPass, cfg::LoopInfo> },
+ { instforest , Create<PrinterPass<InstForest> > },
+ { indvars , Create<PrinterPass<IndVars> > },
+ { exprs , Create<PrinterPass<Exprs> > },
+
+ // IP Analyses...
+ { printmodule , NewPrintModule },
+ { printusedtypes , New<Pass, FindUsedTypes> },
+ { callgraph , New<Pass, cfg::CallGraph> },
+ { unsafepointertypes, New<Pass, FindUnsafePointerTypes> },
+
+ // Dominator analyses
+ { domset , New<MethodPass, cfg::DominatorSet> },
+ { idom , New<MethodPass, cfg::ImmediateDominators> },
+ { domtree , New<MethodPass, cfg::DominatorTree> },
+ { domfrontier , New<MethodPass, cfg::DominanceFrontier> },
+
+ { postdomset , New<MethodPass, cfg::DominatorSet, cfg::DominatorSet::PostDomID> },
+ { postidom , New<MethodPass, cfg::ImmediateDominators, cfg::ImmediateDominators::PostDomID> },
+ { postdomtree , New<MethodPass, cfg::DominatorTree, cfg::DominatorTree::PostDomID> },
+ { postdomfrontier , New<MethodPass, cfg::DominanceFrontier, cfg::DominanceFrontier::PostDomID> },
};
-
-
int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv, " llvm analysis printer tool\n");
- Module *C = ParseBytecodeFile(InputFilename);
- if (!C && !(C = ParseAssemblyFile(InputFilename))) {
- cerr << "Input file didn't read correctly.\n";
+ CurrentModule = ParseBytecodeFile(InputFilename);
+ if (!CurrentModule && !(CurrentModule = ParseAssemblyFile(InputFilename))) {
+ std::cerr << "Input file didn't read correctly.\n";
return 1;
}
- // Loop over all of the analyses looking for module level analyses to run...
+ // Create a PassManager to hold and optimize the collection of passes we are
+ // about to build...
+ //
+ PassManager Analyses;
+
+ // Loop over all of the analyses looking for analyses to run...
for (unsigned i = 0; i < AnalysesList.size(); ++i) {
enum Ans AnalysisPass = AnalysesList[i];
- for (unsigned j = 0; j < sizeof(ModAnTable)/sizeof(ModAnTable[0]); ++j) {
- if (ModAnTable[j].first == AnalysisPass) {
+ for (unsigned j = 0; j < sizeof(AnTable)/sizeof(AnTable[0]); ++j) {
+ if (AnTable[j].AnID == AnalysisPass) {
+ string Message;
if (!Quiet)
- cerr << "Running: " << AnalysesList.getArgDescription(AnalysisPass)
- << " analysis on module!\n";
- ModAnTable[j].second(C);
- AnalysesList[i] = PassDone; // Mark pass as complete so that we don't
+ Message = "\nRunning: '" +
+ string(AnalysesList.getArgDescription(AnalysisPass)) + "' analysis";
+ Analyses.add(AnTable[j].PassConstructor(Message));
break; // get an error later
}
}
}
- // Loop over all of the methods in the module...
- for (Module::iterator I = C->begin(), E = C->end(); I != E; ++I) {
- Method *M = *I;
- if (M->isExternal()) continue;
-
- for (unsigned i = 0; i < AnalysesList.size(); ++i) {
- enum Ans AnalysisPass = AnalysesList[i];
- if (AnalysisPass == PassDone) continue; // Don't rerun module analyses
-
- // Loop over all of the analyses to be run...
- unsigned j;
- for (j = 0; j < sizeof(MethAnTable)/sizeof(MethAnTable[0]); ++j) {
- if (AnalysisPass == MethAnTable[j].AnID) {
- if (!Quiet)
- cerr << "Running: " << AnalysesList.getArgDescription(AnalysisPass)
- << " analysis on '" << ((Value*)M)->getName() << "'!\n";
- MethAnTable[j].AnPtr(M);
- break;
- }
- }
- if (j == sizeof(MethAnTable)/sizeof(MethAnTable[0]))
- cerr << "Analysis tables inconsistent!\n";
- }
- }
+ Analyses.run(CurrentModule);
- delete C;
+ delete CurrentModule;
return 0;
}
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