//
//===----------------------------------------------------------------------===//
-#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/DebugInfo.h"
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/Analysis/LoopPass.h"
-#include "llvm/Analysis/RegionPass.h"
-#include "llvm/Analysis/CallGraph.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetLibraryInfo.h"
-#include "llvm/Target/TargetMachine.h"
+#include "NewPMDriver.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/Support/PassNameParser.h"
-#include "llvm/Support/Signals.h"
+#include "llvm/Analysis/CallGraph.h"
+#include "llvm/Analysis/CallGraphSCCPass.h"
+#include "llvm/Analysis/LoopPass.h"
+#include "llvm/Analysis/RegionPass.h"
+#include "llvm/Bitcode/BitcodeWriterPass.h"
+#include "llvm/CodeGen/CommandFlags.h"
+#include "llvm/DebugInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/IRPrintingPasses.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/Verifier.h"
+#include "llvm/IRReader/IRReader.h"
+#include "llvm/LinkAllIR.h"
+#include "llvm/LinkAllPasses.h"
+#include "llvm/MC/SubtargetFeature.h"
+#include "llvm/PassManager.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/IRReader.h"
#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PassNameParser.h"
#include "llvm/Support/PluginLoader.h"
#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/PassManagerBuilder.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/SystemUtils.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/ToolOutputFile.h"
-#include "llvm/LinkAllPasses.h"
-#include "llvm/LinkAllVMCore.h"
-#include <memory>
+#include "llvm/Target/TargetLibraryInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
#include <algorithm>
+#include <memory>
using namespace llvm;
+using namespace opt_tool;
// The OptimizationList is automatically populated with registered Passes by the
// PassNameParser.
static cl::list<const PassInfo*, bool, PassNameParser>
PassList(cl::desc("Optimizations available:"));
+// This flag specifies a textual description of the optimization pass pipeline
+// to run over the module. This flag switches opt to use the new pass manager
+// infrastructure, completely disabling all of the flags specific to the old
+// pass management.
+static cl::opt<std::string> PassPipeline(
+ "passes",
+ cl::desc("A textual description of the pass pipeline for optimizing"),
+ cl::Hidden);
+
// Other command line options...
//
static cl::opt<std::string>
static cl::opt<bool>
OptLevelO1("O1",
- cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
+ cl::desc("Optimization level 1. Similar to clang -O1"));
static cl::opt<bool>
OptLevelO2("O2",
- cl::desc("Optimization level 2. Similar to llvm-gcc -O2"));
+ cl::desc("Optimization level 2. Similar to clang -O2"));
+
+static cl::opt<bool>
+OptLevelOs("Os",
+ cl::desc("Like -O2 with extra optimizations for size. Similar to clang -Os"));
+
+static cl::opt<bool>
+OptLevelOz("Oz",
+ cl::desc("Like -Os but reduces code size further. Similar to clang -Oz"));
static cl::opt<bool>
OptLevelO3("O3",
- cl::desc("Optimization level 3. Similar to llvm-gcc -O3"));
+ cl::desc("Optimization level 3. Similar to clang -O3"));
+
+static cl::opt<std::string>
+TargetTriple("mtriple", cl::desc("Override target triple for module"));
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>
+DisableLoopUnrolling("disable-loop-unrolling",
+ cl::desc("Disable loop unrolling in all relevant passes"),
+ cl::init(false));
+static cl::opt<bool>
+DisableLoopVectorization("disable-loop-vectorization",
+ cl::desc("Disable the loop vectorization pass"),
+ cl::init(false));
+
+static cl::opt<bool>
+DisableSLPVectorization("disable-slp-vectorization",
+ cl::desc("Disable the slp vectorization pass"),
+ cl::init(false));
+
+
static cl::opt<bool>
DisableSimplifyLibCalls("disable-simplify-libcalls",
cl::desc("Disable simplify-libcalls"));
virtual bool runOnRegion(Region *R, RGPassManager &RGM) {
if (!Quiet) {
Out << "Printing analysis '" << PassToPrint->getPassName() << "' for "
- << "region: '" << R->getNameStr() << "' in function '"
- << R->getEntry()->getParent()->getNameStr() << "':\n";
+ << "region: '" << R->getNameStr() << "' in function '"
+ << R->getEntry()->getParent()->getName() << "':\n";
}
// Get and print pass...
getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
struct BreakpointPrinter : public ModulePass {
raw_ostream &Out;
static char ID;
+ DITypeIdentifierMap TypeIdentifierMap;
BreakpointPrinter(raw_ostream &out)
: ModulePass(ID), Out(out) {
} else if (Context.isType()) {
DIType TY(Context);
if (!TY.getName().empty()) {
- getContextName(TY.getContext(), N);
+ getContextName(TY.getContext().resolve(TypeIdentifierMap), N);
N = N + TY.getName().str() + "::";
}
}
}
virtual bool runOnModule(Module &M) {
+ TypeIdentifierMap.clear();
+ NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu");
+ if (CU_Nodes)
+ TypeIdentifierMap = generateDITypeIdentifierMap(CU_Nodes);
+
StringSet<> Processed;
if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
std::string Name;
DISubprogram SP(NMD->getOperand(i));
- if (SP.Verify())
- getContextName(SP.getContext(), Name);
+ assert((!SP || SP.isSubprogram()) &&
+ "A MDNode in llvm.dbg.sp should be null or a DISubprogram.");
+ if (!SP)
+ continue;
+ getContextName(SP.getContext().resolve(TypeIdentifierMap), Name);
Name = Name + SP.getDisplayName().str();
if (!Name.empty() && Processed.insert(Name)) {
Out << Name << "\n";
AU.setPreservesAll();
}
};
-
+
} // anonymous namespace
char BreakpointPrinter::ID = 0;
///
/// OptLevel - Optimization Level
static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
- unsigned OptLevel) {
+ unsigned OptLevel, unsigned SizeLevel) {
+ FPM.add(createVerifierPass()); // Verify that input is correct
+
PassManagerBuilder Builder;
Builder.OptLevel = OptLevel;
+ Builder.SizeLevel = SizeLevel;
if (DisableInline) {
// No inlining pass
- } else if (OptLevel) {
+ } else if (OptLevel > 1) {
unsigned Threshold = 225;
+ if (SizeLevel == 1) // -Os
+ Threshold = 75;
+ else if (SizeLevel == 2) // -Oz
+ Threshold = 25;
if (OptLevel > 2)
Threshold = 275;
Builder.Inliner = createFunctionInliningPass(Threshold);
Builder.Inliner = createAlwaysInlinerPass();
}
Builder.DisableUnitAtATime = !UnitAtATime;
- Builder.DisableUnrollLoops = OptLevel == 0;
- Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
-
+ Builder.DisableUnrollLoops = (DisableLoopUnrolling.getNumOccurrences() > 0) ?
+ DisableLoopUnrolling : OptLevel == 0;
+
+ // This is final, unless there is a #pragma vectorize enable
+ if (DisableLoopVectorization)
+ Builder.LoopVectorize = false;
+ // If option wasn't forced via cmd line (-vectorize-loops, -loop-vectorize)
+ else if (!Builder.LoopVectorize)
+ Builder.LoopVectorize = OptLevel > 1 && SizeLevel < 2;
+
+ // When #pragma vectorize is on for SLP, do the same as above
+ Builder.SLPVectorize =
+ DisableSLPVectorization ? false : OptLevel > 1 && SizeLevel < 2;
+
Builder.populateFunctionPassManager(FPM);
Builder.populateModulePassManager(MPM);
}
static 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 (!DisableInline)
Builder.Inliner = createFunctionInliningPass();
Builder.OptLevel = 3;
- Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
Builder.populateModulePassManager(PM);
}
/*RunInliner=*/ !DisableInline);
}
+//===----------------------------------------------------------------------===//
+// CodeGen-related helper functions.
+//
+static TargetOptions GetTargetOptions() {
+ TargetOptions Options;
+ Options.LessPreciseFPMADOption = EnableFPMAD;
+ Options.NoFramePointerElim = DisableFPElim;
+ Options.AllowFPOpFusion = FuseFPOps;
+ Options.UnsafeFPMath = EnableUnsafeFPMath;
+ Options.NoInfsFPMath = EnableNoInfsFPMath;
+ Options.NoNaNsFPMath = EnableNoNaNsFPMath;
+ Options.HonorSignDependentRoundingFPMathOption =
+ EnableHonorSignDependentRoundingFPMath;
+ Options.UseSoftFloat = GenerateSoftFloatCalls;
+ if (FloatABIForCalls != FloatABI::Default)
+ Options.FloatABIType = FloatABIForCalls;
+ Options.NoZerosInBSS = DontPlaceZerosInBSS;
+ Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
+ Options.DisableTailCalls = DisableTailCalls;
+ Options.StackAlignmentOverride = OverrideStackAlignment;
+ Options.TrapFuncName = TrapFuncName;
+ Options.PositionIndependentExecutable = EnablePIE;
+ Options.EnableSegmentedStacks = SegmentedStacks;
+ Options.UseInitArray = UseInitArray;
+ return Options;
+}
+
+CodeGenOpt::Level GetCodeGenOptLevel() {
+ if (OptLevelO1)
+ return CodeGenOpt::Less;
+ if (OptLevelO2)
+ return CodeGenOpt::Default;
+ if (OptLevelO3)
+ return CodeGenOpt::Aggressive;
+ return CodeGenOpt::None;
+}
+
+// Returns the TargetMachine instance or zero if no triple is provided.
+static TargetMachine* GetTargetMachine(Triple TheTriple) {
+ std::string Error;
+ const Target *TheTarget = TargetRegistry::lookupTarget(MArch, TheTriple,
+ Error);
+ // Some modules don't specify a triple, and this is okay.
+ if (!TheTarget) {
+ return 0;
+ }
+
+ // Package up features to be passed to target/subtarget
+ std::string FeaturesStr;
+ if (MAttrs.size()) {
+ SubtargetFeatures Features;
+ for (unsigned i = 0; i != MAttrs.size(); ++i)
+ Features.AddFeature(MAttrs[i]);
+ FeaturesStr = Features.getString();
+ }
+
+ return TheTarget->createTargetMachine(TheTriple.getTriple(),
+ MCPU, FeaturesStr, GetTargetOptions(),
+ RelocModel, CMModel,
+ GetCodeGenOptLevel());
+}
//===----------------------------------------------------------------------===//
// main for opt
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
LLVMContext &Context = getGlobalContext();
+ InitializeAllTargets();
+ InitializeAllTargetMCs();
+
// Initialize passes
PassRegistry &Registry = *PassRegistry::getPassRegistry();
initializeCore(Registry);
+ initializeDebugIRPass(Registry);
initializeScalarOpts(Registry);
+ initializeObjCARCOpts(Registry);
+ initializeVectorization(Registry);
initializeIPO(Registry);
initializeAnalysis(Registry);
initializeIPA(Registry);
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;
+ OwningPtr<Module> M;
M.reset(ParseIRFile(InputFilename, Err, Context));
if (M.get() == 0) {
- Err.Print(argv[0], errs());
+ Err.print(argv[0], errs());
return 1;
}
+ // If we are supposed to override the target triple, do so now.
+ if (!TargetTriple.empty())
+ M->setTargetTriple(Triple::normalize(TargetTriple));
+
// Figure out what stream we are supposed to write to...
OwningPtr<tool_output_file> Out;
if (NoOutput) {
std::string ErrorInfo;
Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
- raw_fd_ostream::F_Binary));
+ sys::fs::F_Binary));
if (!ErrorInfo.empty()) {
errs() << ErrorInfo << '\n';
return 1;
if (CheckBitcodeOutputToConsole(Out->os(), !Quiet))
NoOutput = true;
+ if (PassPipeline.getNumOccurrences() > 0) {
+ OutputKind OK = OK_NoOutput;
+ if (!NoOutput)
+ OK = OutputAssembly ? OK_OutputAssembly : OK_OutputBitcode;
+
+ // The user has asked to use the new pass manager and provided a pipeline
+ // string. Hand off the rest of the functionality to the new code for that
+ // layer.
+ return runPassPipeline(argv[0], Context, *M.get(), Out.get(), PassPipeline,
+ OK)
+ ? 0
+ : 1;
+ }
+
// Create a PassManager to hold and optimize the collection of passes we are
// about to build.
//
TLI->disableAllFunctions();
Passes.add(TLI);
- // Add an appropriate TargetData instance for this module.
- TargetData *TD = 0;
+ // Add an appropriate DataLayout instance for this module.
+ DataLayout *TD = 0;
const std::string &ModuleDataLayout = M.get()->getDataLayout();
if (!ModuleDataLayout.empty())
- TD = new TargetData(ModuleDataLayout);
+ TD = new DataLayout(ModuleDataLayout);
else if (!DefaultDataLayout.empty())
- TD = new TargetData(DefaultDataLayout);
+ TD = new DataLayout(DefaultDataLayout);
if (TD)
Passes.add(TD);
+ Triple ModuleTriple(M->getTargetTriple());
+ TargetMachine *Machine = 0;
+ if (ModuleTriple.getArch())
+ Machine = GetTargetMachine(Triple(ModuleTriple));
+ OwningPtr<TargetMachine> TM(Machine);
+
+ // Add internal analysis passes from the target machine.
+ if (TM.get())
+ TM->addAnalysisPasses(Passes);
+
OwningPtr<FunctionPassManager> FPasses;
- if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
+ if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
FPasses.reset(new FunctionPassManager(M.get()));
if (TD)
- FPasses->add(new TargetData(*TD));
+ FPasses->add(new DataLayout(*TD));
+ if (TM.get())
+ TM->addAnalysisPasses(*FPasses);
+
}
if (PrintBreakpoints) {
std::string ErrorInfo;
Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
- raw_fd_ostream::F_Binary));
+ sys::fs::F_Binary));
if (!ErrorInfo.empty()) {
errs() << ErrorInfo << '\n';
return 1;
}
if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 1);
+ AddOptimizationPasses(Passes, *FPasses, 1, 0);
OptLevelO1 = false;
}
if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 2);
+ AddOptimizationPasses(Passes, *FPasses, 2, 0);
OptLevelO2 = false;
}
+ if (OptLevelOs && OptLevelOs.getPosition() < PassList.getPosition(i)) {
+ AddOptimizationPasses(Passes, *FPasses, 2, 1);
+ OptLevelOs = false;
+ }
+
+ if (OptLevelOz && OptLevelOz.getPosition() < PassList.getPosition(i)) {
+ AddOptimizationPasses(Passes, *FPasses, 2, 2);
+ OptLevelOz = false;
+ }
+
if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 3);
+ AddOptimizationPasses(Passes, *FPasses, 3, 0);
OptLevelO3 = false;
}
}
if (PrintEachXForm)
- Passes.add(createPrintModulePass(&errs()));
+ Passes.add(createPrintModulePass(errs()));
}
// If -std-compile-opts was specified at the end of the pass list, add them.
}
if (OptLevelO1)
- AddOptimizationPasses(Passes, *FPasses, 1);
+ AddOptimizationPasses(Passes, *FPasses, 1, 0);
if (OptLevelO2)
- AddOptimizationPasses(Passes, *FPasses, 2);
+ AddOptimizationPasses(Passes, *FPasses, 2, 0);
+
+ if (OptLevelOs)
+ AddOptimizationPasses(Passes, *FPasses, 2, 1);
+
+ if (OptLevelOz)
+ AddOptimizationPasses(Passes, *FPasses, 2, 2);
if (OptLevelO3)
- AddOptimizationPasses(Passes, *FPasses, 3);
+ AddOptimizationPasses(Passes, *FPasses, 3, 0);
- if (OptLevelO1 || OptLevelO2 || OptLevelO3)
+ if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
+ FPasses->doInitialization();
for (Module::iterator F = M->begin(), E = M->end(); F != E; ++F)
FPasses->run(*F);
+ FPasses->doFinalization();
+ }
// Check that the module is well formed on completion of optimization
if (!NoVerify && !VerifyEach)
// Write bitcode or assembly to the output as the last step...
if (!NoOutput && !AnalyzeOnly) {
if (OutputAssembly)
- Passes.add(createPrintModulePass(&Out->os()));
+ Passes.add(createPrintModulePass(Out->os()));
else
Passes.add(createBitcodeWriterPass(Out->os()));
}
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