#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
#include "llvm/PassManager.h"
#include "llvm/CallGraphSCCPass.h"
#include "llvm/Bitcode/ReaderWriter.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/MemoryBuffer.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"
cl::value_desc("filename"), cl::init("-"));
static cl::opt<bool>
-Force("f", cl::desc("Overwrite output files"));
+Force("f", cl::desc("Enable binary output on terminals"));
static cl::opt<bool>
PrintEachXForm("p", cl::desc("Print module after each transformation"));
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>
UnitAtATime("funit-at-a-time",
- cl::desc("Enable IPO. This is same as llvm-gcc's -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",
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 {
CallGraphSCCPassPrinter(const PassInfo *PI) :
CallGraphSCCPass(&ID), PassToPrint(PI) {}
- virtual bool runOnSCC(const std::vector<CallGraphNode *>&SCC) {
+ virtual bool runOnSCC(std::vector<CallGraphNode *>&SCC) {
if (!Quiet) {
outs() << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
for (unsigned i = 0, e = SCC.size(); i != e; ++i) {
Function *F = SCC[i]->getFunction();
if (F) {
- outs().flush();
- getAnalysisID<Pass>(PassToPrint).print(cout, F->getParent());
- cout << std::flush;
+ getAnalysisID<Pass>(PassToPrint).print(outs(), F->getParent());
}
}
}
virtual bool runOnModule(Module &M) {
if (!Quiet) {
outs() << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
- outs().flush();
- getAnalysisID<Pass>(PassToPrint).print(cout, &M);
- cout << std::flush;
+ getAnalysisID<Pass>(PassToPrint).print(outs(), &M);
}
// Get and print pass...
<< "' for function '" << F.getName() << "':\n";
}
// Get and print pass...
- outs().flush();
- getAnalysisID<Pass>(PassToPrint).print(cout, F.getParent());
- cout << std::flush;
+ getAnalysisID<Pass>(PassToPrint).print(outs(), F.getParent());
return false;
}
virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
if (!Quiet) {
outs() << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
- outs().flush();
- getAnalysisID<Pass>(PassToPrint).print(cout,
+ getAnalysisID<Pass>(PassToPrint).print(outs(),
L->getHeader()->getParent()->getParent());
- cout << std::flush;
}
// Get and print pass...
return false;
}
// Get and print pass...
- outs().flush();
- getAnalysisID<Pass>(PassToPrint).print(cout, BB.getParent()->getParent());
- cout << std::flush;
+ getAnalysisID<Pass>(PassToPrint).print(outs(), BB.getParent()->getParent());
return false;
}
unsigned OptLevel) {
createStandardFunctionPasses(&FPM, OptLevel);
- llvm::Pass *InliningPass = OptLevel > 1 ? createFunctionInliningPass() : 0;
+ 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,
// main for opt
//
int main(int argc, char **argv) {
- llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
+ sys::PrintStackTraceOnErrorSignal();
+ llvm::PrettyStackTraceProgram X(argc, argv);
+
+ // Enable debug stream buffering.
+ EnableDebugBuffering = true;
+
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
LLVMContext &Context = getGlobalContext();
- try {
- cl::ParseCommandLineOptions(argc, argv,
- "llvm .bc -> .bc modular optimizer and analysis printer\n");
- sys::PrintStackTraceOnErrorSignal();
-
- // 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;
-
- std::string ErrorMessage;
-
- // Load the input module...
- std::auto_ptr<Module> M;
- if (MemoryBuffer *Buffer
- = MemoryBuffer::getFileOrSTDIN(InputFilename, &ErrorMessage)) {
- M.reset(ParseBitcodeFile(Buffer, Context, &ErrorMessage));
- delete Buffer;
- }
+
+ cl::ParseCommandLineOptions(argc, argv,
+ "llvm .bc -> .bc modular optimizer and analysis printer\n");
- if (M.get() == 0) {
- errs() << argv[0] << ": ";
- if (ErrorMessage.size())
- errs() << ErrorMessage << "\n";
- else
- errs() << "bitcode didn't read correctly.\n";
- return 1;
- }
+ // 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...
+ // FIXME: outs() is not binary!
+ raw_ostream *Out = &outs(); // Default to printing to stdout...
+ if (OutputFilename != "-") {
+ if (NoOutput || AnalyzeOnly) {
+ errs() << "WARNING: The -o (output filename) option is ignored when\n"
+ "the --disable-output or --analyze options are used.\n";
+ } else {
+ // Make sure that the Output file gets unlinked from the disk if we get a
+ // SIGINT
+ sys::RemoveFileOnSignal(sys::Path(OutputFilename));
- // Figure out what stream we are supposed to write to...
- // FIXME: outs() is not binary!
- raw_ostream *Out = &outs(); // Default to printing to stdout...
- if (OutputFilename != "-") {
std::string ErrorInfo;
- Out = new raw_fd_ostream(OutputFilename.c_str(), /*Binary=*/true,
- Force, ErrorInfo);
+ Out = new raw_fd_ostream(OutputFilename.c_str(), ErrorInfo,
+ raw_fd_ostream::F_Binary);
if (!ErrorInfo.empty()) {
errs() << ErrorInfo << '\n';
- if (!Force)
- errs() << "Use -f command line argument to force output\n";
delete Out;
return 1;
}
-
- // Make sure that the Output file gets unlinked from the disk if we get a
- // SIGINT
- sys::RemoveFileOnSignal(sys::Path(OutputFilename));
}
+ }
- // 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 && CheckBitcodeOutputToConsole(Out,!Quiet)) {
+ // 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, !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...
- Passes.add(new TargetData(M.get()));
-
- FunctionPassManager *FPasses = NULL;
- if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
- FPasses = new FunctionPassManager(new ExistingModuleProvider(M.get()));
- FPasses->add(new TargetData(M.get()));
- }
-
- // 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) {
- bool isBBPass = dynamic_cast<BasicBlockPass*>(P) != 0;
- bool isLPass = !isBBPass && dynamic_cast<LoopPass*>(P) != 0;
- bool isFPass = !isLPass && dynamic_cast<FunctionPass*>(P) != 0;
- bool isCGSCCPass = !isFPass && dynamic_cast<CallGraphSCCPass*>(P) != 0;
-
- addPass(Passes, P);
-
- if (AnalyzeOnly) {
- if (isBBPass)
- Passes.add(new BasicBlockPassPrinter(PassInf));
- else if (isLPass)
- Passes.add(new LoopPassPrinter(PassInf));
- else if (isFPass)
- Passes.add(new FunctionPassPrinter(PassInf));
- else if (isCGSCCPass)
- Passes.add(new CallGraphSCCPassPrinter(PassInf));
- else
- Passes.add(new ModulePassPrinter(PassInf));
- }
- }
-
- if (PrintEachXForm)
- Passes.add(createPrintModulePass(&errs()));
- }
+ // 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);
+
+ FunctionPassManager *FPasses = NULL;
+ if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
+ FPasses = new FunctionPassManager(M.get());
+ if (TD)
+ FPasses->add(new TargetData(*TD));
+ }
- // If -std-compile-opts was specified at the end of the pass list, add them.
- if (StandardCompileOpts) {
+ // 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) {
+ if (StandardLinkOpts &&
+ StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
AddStandardLinkPasses(Passes);
StandardLinkOpts = false;
}
- if (OptLevelO1) {
+ if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
AddOptimizationPasses(Passes, *FPasses, 1);
+ OptLevelO1 = false;
}
- if (OptLevelO2) {
+ if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
AddOptimizationPasses(Passes, *FPasses, 2);
+ OptLevelO2 = false;
}
- if (OptLevelO3) {
+ if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
AddOptimizationPasses(Passes, *FPasses, 3);
+ OptLevelO3 = false;
}
- if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
- FPasses->doInitialization();
- for (Module::iterator I = M.get()->begin(), E = M.get()->end();
- I != E; ++I)
- FPasses->run(*I);
+ 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) {
+ addPass(Passes, P);
+
+ if (AnalyzeOnly) {
+ switch (P->getPassKind()) {
+ case PT_BasicBlock:
+ Passes.add(new BasicBlockPassPrinter(PassInf));
+ break;
+ case PT_Loop:
+ Passes.add(new LoopPassPrinter(PassInf));
+ break;
+ case PT_Function:
+ Passes.add(new FunctionPassPrinter(PassInf));
+ break;
+ case PT_CallGraphSCC:
+ Passes.add(new CallGraphSCCPassPrinter(PassInf));
+ break;
+ default:
+ Passes.add(new ModulePassPrinter(PassInf));
+ break;
+ }
+ }
}
- // Check that the module is well formed on completion of optimization
- if (!NoVerify && !VerifyEach)
- Passes.add(createVerifierPass());
+ if (PrintEachXForm)
+ Passes.add(createPrintModulePass(&errs()));
+ }
- // Write bitcode out to disk or outs() as the last step...
- if (!NoOutput && !AnalyzeOnly)
- Passes.add(createBitcodeWriterPass(*Out));
+ // 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);
- // Now that we have all of the passes ready, run them.
- Passes.run(*M.get());
+ if (OptLevelO2)
+ AddOptimizationPasses(Passes, *FPasses, 2);
- // Delete the raw_fd_ostream.
- if (Out != &outs())
- delete Out;
- return 0;
+ if (OptLevelO3)
+ AddOptimizationPasses(Passes, *FPasses, 3);
- } catch (const std::string& msg) {
- errs() << argv[0] << ": " << msg << "\n";
- } catch (...) {
- errs() << argv[0] << ": Unexpected unknown exception occurred.\n";
+ if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
+ FPasses->doInitialization();
+ for (Module::iterator I = M.get()->begin(), E = M.get()->end();
+ I != E; ++I)
+ FPasses->run(*I);
}
- llvm_shutdown();
- return 1;
+
+ // Check that the module is well formed on completion of optimization
+ if (!NoVerify && !VerifyEach)
+ Passes.add(createVerifierPass());
+
+ // Write bitcode or assembly out to disk or outs() as the last step...
+ if (!NoOutput && !AnalyzeOnly) {
+ if (OutputAssembly)
+ Passes.add(createPrintModulePass(Out));
+ else
+ Passes.add(createBitcodeWriterPass(*Out));
+ }
+
+ // Now that we have all of the passes ready, run them.
+ Passes.run(*M.get());
+
+ // Delete the raw_fd_ostream.
+ if (Out != &outs())
+ delete Out;
+ return 0;
}
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