+static cl::opt<bool>
+AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
+
+// ---------- Define Printers for module and function passes ------------
+namespace {
+
+struct CallGraphSCCPassPrinter : public CallGraphSCCPass {
+ static char ID;
+ const PassInfo *PassToPrint;
+ CallGraphSCCPassPrinter(const PassInfo *PI) :
+ CallGraphSCCPass((intptr_t)&ID), PassToPrint(PI) {}
+
+ virtual bool runOnSCC(const std::vector<CallGraphNode *>&SCC) {
+ if (!Quiet) {
+ cout << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
+
+ for (unsigned i = 0, e = SCC.size(); i != e; ++i) {
+ Function *F = SCC[i]->getFunction();
+ if (F)
+ getAnalysisID<Pass>(PassToPrint).print(cout, F->getParent());
+ }
+ }
+ // Get and print pass...
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "'Pass' Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+char CallGraphSCCPassPrinter::ID = 0;
+
+struct ModulePassPrinter : public ModulePass {
+ static char ID;
+ const PassInfo *PassToPrint;
+ ModulePassPrinter(const PassInfo *PI) : ModulePass((intptr_t)&ID),
+ PassToPrint(PI) {}
+
+ virtual bool runOnModule(Module &M) {
+ if (!Quiet) {
+ cout << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
+ getAnalysisID<Pass>(PassToPrint).print(cout, &M);
+ }
+
+ // Get and print pass...
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "'Pass' Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+char ModulePassPrinter::ID = 0;
+struct FunctionPassPrinter : public FunctionPass {
+ const PassInfo *PassToPrint;
+ static char ID;
+ FunctionPassPrinter(const PassInfo *PI) : FunctionPass((intptr_t)&ID),
+ PassToPrint(PI) {}
+
+ virtual bool runOnFunction(Function &F) {
+ if (!Quiet) {
+ cout << "Printing analysis '" << PassToPrint->getPassName()
+ << "' for function '" << F.getName() << "':\n";
+ }
+ // Get and print pass...
+ getAnalysisID<Pass>(PassToPrint).print(cout, F.getParent());
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "FunctionPass Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+char FunctionPassPrinter::ID = 0;
+
+struct LoopPassPrinter : public LoopPass {
+ static char ID;
+ const PassInfo *PassToPrint;
+ LoopPassPrinter(const PassInfo *PI) :
+ LoopPass((intptr_t)&ID), PassToPrint(PI) {}
+
+ virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
+ if (!Quiet) {
+ cout << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
+ getAnalysisID<Pass>(PassToPrint).print(cout,
+ L->getHeader()->getParent()->getParent());
+ }
+ // Get and print pass...
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "'Pass' Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+char LoopPassPrinter::ID = 0;
+
+struct BasicBlockPassPrinter : public BasicBlockPass {
+ const PassInfo *PassToPrint;
+ static char ID;
+ BasicBlockPassPrinter(const PassInfo *PI)
+ : BasicBlockPass((intptr_t)&ID), PassToPrint(PI) {}
+
+ virtual bool runOnBasicBlock(BasicBlock &BB) {
+ if (!Quiet) {
+ cout << "Printing Analysis info for BasicBlock '" << BB.getName()
+ << "': Pass " << PassToPrint->getPassName() << ":\n";
+ }
+
+ // Get and print pass...
+ getAnalysisID<Pass>(PassToPrint).print(cout, BB.getParent()->getParent());
+ return false;
+ }
+
+ virtual const char *getPassName() const { return "BasicBlockPass Printer"; }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequiredID(PassToPrint);
+ AU.setPreservesAll();
+ }
+};
+
+char BasicBlockPassPrinter::ID = 0;
+inline void addPass(PassManager &PM, Pass *P) {
+ // Add the pass to the pass manager...
+ PM.add(P);
+
+ // If we are verifying all of the intermediate steps, add the verifier...
+ if (VerifyEach) PM.add(createVerifierPass());
+}
+
+void AddStandardCompilePasses(PassManager &PM) {
+ PM.add(createVerifierPass()); // Verify that input is correct
+
+ addPass(PM, createLowerSetJmpPass()); // Lower llvm.setjmp/.longjmp
+
+ // If the -strip-debug command line option was specified, do it.
+ if (StripDebug)
+ addPass(PM, createStripSymbolsPass(true));
+
+ if (DisableOptimizations) return;
+
+ addPass(PM, createRaiseAllocationsPass()); // call %malloc -> malloc inst
+ addPass(PM, createCFGSimplificationPass()); // Clean up disgusting code
+ addPass(PM, createPromoteMemoryToRegisterPass());// Kill useless allocas
+ addPass(PM, createGlobalOptimizerPass()); // Optimize out global vars
+ addPass(PM, createGlobalDCEPass()); // Remove unused fns and globs
+ addPass(PM, createIPConstantPropagationPass());// IP Constant Propagation
+ addPass(PM, createDeadArgEliminationPass()); // Dead argument elimination
+ addPass(PM, createInstructionCombiningPass()); // Clean up after IPCP & DAE
+ addPass(PM, createCFGSimplificationPass()); // Clean up after IPCP & DAE
+
+ addPass(PM, createPruneEHPass()); // Remove dead EH info
+
+ if (!DisableInline)
+ addPass(PM, createFunctionInliningPass()); // Inline small functions
+ addPass(PM, createArgumentPromotionPass()); // Scalarize uninlined fn args
+
+ addPass(PM, createTailDuplicationPass()); // Simplify cfg by copying code
+ addPass(PM, createSimplifyLibCallsPass()); // Library Call Optimizations
+ addPass(PM, createInstructionCombiningPass()); // Cleanup for scalarrepl.
+ addPass(PM, createJumpThreadingPass()); // Thread jumps.
+ addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
+ addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
+ addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
+ addPass(PM, createCondPropagationPass()); // Propagate conditionals
+
+ addPass(PM, createTailCallEliminationPass()); // Eliminate tail calls
+ addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
+ addPass(PM, createReassociatePass()); // Reassociate expressions
+ addPass(PM, createLoopRotatePass());
+ addPass(PM, createLICMPass()); // Hoist loop invariants
+ addPass(PM, createLoopUnswitchPass()); // Unswitch loops.
+ addPass(PM, createLoopIndexSplitPass()); // Index split loops.
+ // FIXME : Removing instcombine causes nestedloop regression.
+ addPass(PM, createInstructionCombiningPass());
+ addPass(PM, createIndVarSimplifyPass()); // Canonicalize indvars
+ addPass(PM, createLoopDeletionPass()); // Delete dead loops
+ addPass(PM, createLoopUnrollPass()); // Unroll small loops
+ addPass(PM, createInstructionCombiningPass()); // Clean up after the unroller
+ addPass(PM, createGVNPass()); // Remove redundancies
+ addPass(PM, createMemCpyOptPass()); // Remove memcpy / form memset
+ addPass(PM, createSCCPPass()); // Constant prop with SCCP
+
+ // Run instcombine after redundancy elimination to exploit opportunities
+ // opened up by them.
+ addPass(PM, createInstructionCombiningPass());
+ addPass(PM, createCondPropagationPass()); // Propagate conditionals
+
+ addPass(PM, createDeadStoreEliminationPass()); // Delete dead stores
+ addPass(PM, createAggressiveDCEPass()); // Delete dead instructions
+ addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
+ addPass(PM, createStripDeadPrototypesPass()); // Get rid of dead prototypes
+ addPass(PM, createDeadTypeEliminationPass()); // Eliminate dead types
+ addPass(PM, createConstantMergePass()); // Merge dup global constants
+}
+
+} // anonymous namespace
+