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diff --git a/contrib/llvm/tools/opt/opt.cpp b/contrib/llvm/tools/opt/opt.cpp
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-//===- opt.cpp - The LLVM Modular Optimizer -------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Optimizations may be specified an arbitrary number of times on the command
-// line, They are run in the order specified.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/PassManager.h"
-#include "llvm/CallGraphSCCPass.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/Assembly/PrintModulePass.h"
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/Analysis/LoopPass.h"
-#include "llvm/Analysis/CallGraph.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Support/PassNameParser.h"
-#include "llvm/System/Signals.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/IRReader.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/PluginLoader.h"
-#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/StandardPasses.h"
-#include "llvm/Support/SystemUtils.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/LinkAllPasses.h"
-#include "llvm/LinkAllVMCore.h"
-#include <memory>
-#include <algorithm>
-using namespace llvm;
-
-// The OptimizationList is automatically populated with registered Passes by the
-// PassNameParser.
-//
-static cl::list<const PassInfo*, bool, PassNameParser>
-PassList(cl::desc("Optimizations available:"));
-
-// Other command line options...
-//
-static cl::opt<std::string>
-InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
- cl::init("-"), cl::value_desc("filename"));
-
-static cl::opt<std::string>
-OutputFilename("o", cl::desc("Override output filename"),
- cl::value_desc("filename"));
-
-static cl::opt<bool>
-Force("f", cl::desc("Enable binary output on terminals"));
-
-static cl::opt<bool>
-PrintEachXForm("p", cl::desc("Print module after each transformation"));
-
-static cl::opt<bool>
-NoOutput("disable-output",
- cl::desc("Do not write result bitcode file"), cl::Hidden);
-
-static cl::opt<bool>
-OutputAssembly("S", cl::desc("Write output as LLVM assembly"));
-
-static cl::opt<bool>
-NoVerify("disable-verify", cl::desc("Do not verify result module"), cl::Hidden);
-
-static cl::opt<bool>
-VerifyEach("verify-each", cl::desc("Verify after each transform"));
-
-static cl::opt<bool>
-StripDebug("strip-debug",
- cl::desc("Strip debugger symbol info from translation unit"));
-
-static cl::opt<bool>
-DisableInline("disable-inlining", cl::desc("Do not run the inliner pass"));
-
-static cl::opt<bool>
-DisableOptimizations("disable-opt",
- cl::desc("Do not run any optimization passes"));
-
-static cl::opt<bool>
-DisableInternalize("disable-internalize",
- cl::desc("Do not mark all symbols as internal"));
-
-static cl::opt<bool>
-StandardCompileOpts("std-compile-opts",
- cl::desc("Include the standard compile time optimizations"));
-
-static cl::opt<bool>
-StandardLinkOpts("std-link-opts",
- cl::desc("Include the standard link time optimizations"));
-
-static cl::opt<bool>
-OptLevelO1("O1",
- cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
-
-static cl::opt<bool>
-OptLevelO2("O2",
- cl::desc("Optimization level 2. Similar to llvm-gcc -O2"));
-
-static cl::opt<bool>
-OptLevelO3("O3",
- cl::desc("Optimization level 3. Similar to llvm-gcc -O3"));
-
-static cl::opt<bool>
-UnitAtATime("funit-at-a-time",
- cl::desc("Enable IPO. This is same as llvm-gcc's -funit-at-a-time"),
- cl::init(true));
-
-static cl::opt<bool>
-DisableSimplifyLibCalls("disable-simplify-libcalls",
- cl::desc("Disable simplify-libcalls"));
-
-static cl::opt<bool>
-Quiet("q", cl::desc("Obsolete option"), cl::Hidden);
-
-static cl::alias
-QuietA("quiet", cl::desc("Alias for -q"), cl::aliasopt(Quiet));
-
-static cl::opt<bool>
-AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
-
-static cl::opt<std::string>
-DefaultDataLayout("default-data-layout",
- cl::desc("data layout string to use if not specified by module"),
- cl::value_desc("layout-string"), cl::init(""));
-
-// ---------- Define Printers for module and function passes ------------
-namespace {
-
-struct CallGraphSCCPassPrinter : public CallGraphSCCPass {
- static char ID;
- const PassInfo *PassToPrint;
- raw_ostream &Out;
- CallGraphSCCPassPrinter(const PassInfo *PI, raw_ostream &out) :
- CallGraphSCCPass(ID), PassToPrint(PI), Out(out) {}
-
- virtual bool runOnSCC(CallGraphSCC &SCC) {
- if (!Quiet) {
- Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
-
- for (CallGraphSCC::iterator I = SCC.begin(), E = SCC.end(); I != E; ++I) {
- Function *F = (*I)->getFunction();
- if (F)
- getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
- 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->getTypeInfo());
- AU.setPreservesAll();
- }
-};
-
-char CallGraphSCCPassPrinter::ID = 0;
-
-struct ModulePassPrinter : public ModulePass {
- static char ID;
- const PassInfo *PassToPrint;
- raw_ostream &Out;
- ModulePassPrinter(const PassInfo *PI, raw_ostream &out)
- : ModulePass(ID), PassToPrint(PI), Out(out) {}
-
- virtual bool runOnModule(Module &M) {
- if (!Quiet) {
- Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
- getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out, &M);
- }
-
- // Get and print pass...
- return false;
- }
-
- virtual const char *getPassName() const { return "'Pass' Printer"; }
-
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.addRequiredID(PassToPrint->getTypeInfo());
- AU.setPreservesAll();
- }
-};
-
-char ModulePassPrinter::ID = 0;
-struct FunctionPassPrinter : public FunctionPass {
- const PassInfo *PassToPrint;
- raw_ostream &Out;
- static char ID;
- FunctionPassPrinter(const PassInfo *PI, raw_ostream &out)
- : FunctionPass(ID), PassToPrint(PI), Out(out) {}
-
- virtual bool runOnFunction(Function &F) {
- if (!Quiet) {
- Out << "Printing analysis '" << PassToPrint->getPassName()
- << "' for function '" << F.getName() << "':\n";
- }
- // Get and print pass...
- getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
- F.getParent());
- return false;
- }
-
- virtual const char *getPassName() const { return "FunctionPass Printer"; }
-
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.addRequiredID(PassToPrint->getTypeInfo());
- AU.setPreservesAll();
- }
-};
-
-char FunctionPassPrinter::ID = 0;
-
-struct LoopPassPrinter : public LoopPass {
- static char ID;
- const PassInfo *PassToPrint;
- raw_ostream &Out;
- LoopPassPrinter(const PassInfo *PI, raw_ostream &out) :
- LoopPass(ID), PassToPrint(PI), Out(out) {}
-
- virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
- if (!Quiet) {
- Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
- getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
- 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->getTypeInfo());
- AU.setPreservesAll();
- }
-};
-
-char LoopPassPrinter::ID = 0;
-
-struct BasicBlockPassPrinter : public BasicBlockPass {
- const PassInfo *PassToPrint;
- raw_ostream &Out;
- static char ID;
- BasicBlockPassPrinter(const PassInfo *PI, raw_ostream &out)
- : BasicBlockPass(ID), PassToPrint(PI), Out(out) {}
-
- virtual bool runOnBasicBlock(BasicBlock &BB) {
- if (!Quiet) {
- Out << "Printing Analysis info for BasicBlock '" << BB.getName()
- << "': Pass " << PassToPrint->getPassName() << ":\n";
- }
-
- // Get and print pass...
- getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
- BB.getParent()->getParent());
- return false;
- }
-
- virtual const char *getPassName() const { return "BasicBlockPass Printer"; }
-
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.addRequiredID(PassToPrint->getTypeInfo());
- AU.setPreservesAll();
- }
-};
-
-char BasicBlockPassPrinter::ID = 0;
-inline void addPass(PassManagerBase &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());
-}
-
-/// AddOptimizationPasses - This routine adds optimization passes
-/// based on selected optimization level, OptLevel. This routine
-/// duplicates llvm-gcc behaviour.
-///
-/// OptLevel - Optimization Level
-void AddOptimizationPasses(PassManagerBase &MPM, PassManagerBase &FPM,
- unsigned OptLevel) {
- createStandardFunctionPasses(&FPM, OptLevel);
-
- llvm::Pass *InliningPass = 0;
- if (DisableInline) {
- // No inlining pass
- } else if (OptLevel) {
- unsigned Threshold = 200;
- if (OptLevel > 2)
- Threshold = 250;
- InliningPass = createFunctionInliningPass(Threshold);
- } else {
- InliningPass = createAlwaysInlinerPass();
- }
- createStandardModulePasses(&MPM, OptLevel,
- /*OptimizeSize=*/ false,
- UnitAtATime,
- /*UnrollLoops=*/ OptLevel > 1,
- !DisableSimplifyLibCalls,
- /*HaveExceptions=*/ true,
- InliningPass);
-}
-
-void AddStandardCompilePasses(PassManagerBase &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;
-
- llvm::Pass *InliningPass = !DisableInline ? createFunctionInliningPass() : 0;
-
- // -std-compile-opts adds the same module passes as -O3.
- createStandardModulePasses(&PM, 3,
- /*OptimizeSize=*/ false,
- /*UnitAtATime=*/ true,
- /*UnrollLoops=*/ true,
- /*SimplifyLibCalls=*/ true,
- /*HaveExceptions=*/ true,
- InliningPass);
-}
-
-void AddStandardLinkPasses(PassManagerBase &PM) {
- PM.add(createVerifierPass()); // Verify that input is correct
-
- // If the -strip-debug command line option was specified, do it.
- if (StripDebug)
- addPass(PM, createStripSymbolsPass(true));
-
- if (DisableOptimizations) return;
-
- createStandardLTOPasses(&PM, /*Internalize=*/ !DisableInternalize,
- /*RunInliner=*/ !DisableInline,
- /*VerifyEach=*/ VerifyEach);
-}
-
-} // anonymous namespace
-
-
-//===----------------------------------------------------------------------===//
-// main for opt
-//
-int main(int argc, char **argv) {
- sys::PrintStackTraceOnErrorSignal();
- llvm::PrettyStackTraceProgram X(argc, argv);
-
- if (AnalyzeOnly && NoOutput) {
- errs() << argv[0] << ": analyze mode conflicts with no-output mode.\n";
- return 1;
- }
-
- // Enable debug stream buffering.
- EnableDebugBuffering = true;
-
- llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
- LLVMContext &Context = getGlobalContext();
-
- cl::ParseCommandLineOptions(argc, argv,
- "llvm .bc -> .bc modular optimizer and analysis printer\n");
-
- // Allocate a full target machine description only if necessary.
- // FIXME: The choice of target should be controllable on the command line.
- std::auto_ptr<TargetMachine> target;
-
- SMDiagnostic Err;
-
- // Load the input module...
- std::auto_ptr<Module> M;
- M.reset(ParseIRFile(InputFilename, Err, Context));
-
- if (M.get() == 0) {
- Err.Print(argv[0], errs());
- return 1;
- }
-
- // Figure out what stream we are supposed to write to...
- OwningPtr<tool_output_file> Out;
- if (NoOutput) {
- if (!OutputFilename.empty())
- errs() << "WARNING: The -o (output filename) option is ignored when\n"
- "the --disable-output option is used.\n";
- } else {
- // Default to standard output.
- if (OutputFilename.empty())
- OutputFilename = "-";
-
- std::string ErrorInfo;
- Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
- raw_fd_ostream::F_Binary));
- if (!ErrorInfo.empty()) {
- errs() << ErrorInfo << '\n';
- return 1;
- }
- }
-
- // If the output is set to be emitted to standard out, and standard out is a
- // console, print out a warning message and refuse to do it. We don't
- // impress anyone by spewing tons of binary goo to a terminal.
- if (!Force && !NoOutput && !AnalyzeOnly && !OutputAssembly)
- if (CheckBitcodeOutputToConsole(Out->os(), !Quiet))
- NoOutput = true;
-
- // Create a PassManager to hold and optimize the collection of passes we are
- // about to build...
- //
- PassManager Passes;
-
- // Add an appropriate TargetData instance for this module...
- TargetData *TD = 0;
- const std::string &ModuleDataLayout = M.get()->getDataLayout();
- if (!ModuleDataLayout.empty())
- TD = new TargetData(ModuleDataLayout);
- else if (!DefaultDataLayout.empty())
- TD = new TargetData(DefaultDataLayout);
-
- if (TD)
- Passes.add(TD);
-
- OwningPtr<PassManager> FPasses;
- if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
- FPasses.reset(new PassManager());
- if (TD)
- FPasses->add(new TargetData(*TD));
- }
-
- // If the -strip-debug command line option was specified, add it. If
- // -std-compile-opts was also specified, it will handle StripDebug.
- if (StripDebug && !StandardCompileOpts)
- addPass(Passes, createStripSymbolsPass(true));
-
- // Create a new optimization pass for each one specified on the command line
- for (unsigned i = 0; i < PassList.size(); ++i) {
- // Check to see if -std-compile-opts was specified before this option. If
- // so, handle it.
- if (StandardCompileOpts &&
- StandardCompileOpts.getPosition() < PassList.getPosition(i)) {
- AddStandardCompilePasses(Passes);
- StandardCompileOpts = false;
- }
-
- if (StandardLinkOpts &&
- StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
- AddStandardLinkPasses(Passes);
- StandardLinkOpts = false;
- }
-
- if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 1);
- OptLevelO1 = false;
- }
-
- if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 2);
- OptLevelO2 = false;
- }
-
- if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 3);
- OptLevelO3 = false;
- }
-
- const PassInfo *PassInf = PassList[i];
- Pass *P = 0;
- if (PassInf->getNormalCtor())
- P = PassInf->getNormalCtor()();
- else
- errs() << argv[0] << ": cannot create pass: "
- << PassInf->getPassName() << "\n";
- if (P) {
- PassKind Kind = P->getPassKind();
- addPass(Passes, P);
-
- if (AnalyzeOnly) {
- switch (Kind) {
- case PT_BasicBlock:
- Passes.add(new BasicBlockPassPrinter(PassInf, Out->os()));
- break;
- case PT_Loop:
- Passes.add(new LoopPassPrinter(PassInf, Out->os()));
- break;
- case PT_Function:
- Passes.add(new FunctionPassPrinter(PassInf, Out->os()));
- break;
- case PT_CallGraphSCC:
- Passes.add(new CallGraphSCCPassPrinter(PassInf, Out->os()));
- break;
- default:
- Passes.add(new ModulePassPrinter(PassInf, Out->os()));
- break;
- }
- }
- }
-
- if (PrintEachXForm)
- Passes.add(createPrintModulePass(&errs()));
- }
-
- // If -std-compile-opts was specified at the end of the pass list, add them.
- if (StandardCompileOpts) {
- AddStandardCompilePasses(Passes);
- StandardCompileOpts = false;
- }
-
- if (StandardLinkOpts) {
- AddStandardLinkPasses(Passes);
- StandardLinkOpts = false;
- }
-
- if (OptLevelO1)
- AddOptimizationPasses(Passes, *FPasses, 1);
-
- if (OptLevelO2)
- AddOptimizationPasses(Passes, *FPasses, 2);
-
- if (OptLevelO3)
- AddOptimizationPasses(Passes, *FPasses, 3);
-
- if (OptLevelO1 || OptLevelO2 || OptLevelO3)
- FPasses->run(*M.get());
-
- // Check that the module is well formed on completion of optimization
- if (!NoVerify && !VerifyEach)
- Passes.add(createVerifierPass());
-
- // Write bitcode or assembly to the output as the last step...
- if (!NoOutput && !AnalyzeOnly) {
- if (OutputAssembly)
- Passes.add(createPrintModulePass(&Out->os()));
- else
- Passes.add(createBitcodeWriterPass(Out->os()));
- }
-
- // Now that we have all of the passes ready, run them.
- Passes.run(*M.get());
-
- // Declare success.
- if (!NoOutput)
- Out->keep();
-
- return 0;
-}
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