//===----------------------------------------------------------------------===//
#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/PassManager.h"
-#include "llvm/Pass.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/Support/IRReader.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/CodeGen/CommandFlags.h"
#include "llvm/CodeGen/LinkAllAsmWriterComponents.h"
#include "llvm/CodeGen/LinkAllCodegenComponents.h"
-#include "llvm/Config/config.h"
+#include "llvm/DataLayout.h"
+#include "llvm/MC/SubtargetFeature.h"
+#include "llvm/Module.h"
+#include "llvm/Pass.h"
+#include "llvm/PassManager.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/IRReader.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PluginLoader.h"
#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Signals.h"
-#include "llvm/Target/SubtargetFeature.h"
-#include "llvm/Target/TargetData.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetRegistry.h"
-#include "llvm/Target/TargetSelect.h"
+#include "llvm/TargetTransformInfo.h"
#include <memory>
using namespace llvm;
static cl::opt<std::string>
OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"));
+static cl::opt<unsigned>
+TimeCompilations("time-compilations", cl::Hidden, cl::init(1u),
+ cl::value_desc("N"),
+ cl::desc("Repeat compilation N times for timing"));
+
// Determine optimization level.
static cl::opt<char>
OptLevel("O",
static cl::opt<std::string>
TargetTriple("mtriple", cl::desc("Override target triple for module"));
-static cl::opt<std::string>
-MArch("march", cl::desc("Architecture to generate code for (see --version)"));
-
-static cl::opt<std::string>
-MCPU("mcpu",
- cl::desc("Target a specific cpu type (-mcpu=help for details)"),
- cl::value_desc("cpu-name"),
- cl::init(""));
-
-static cl::list<std::string>
-MAttrs("mattr",
- cl::CommaSeparated,
- cl::desc("Target specific attributes (-mattr=help for details)"),
- cl::value_desc("a1,+a2,-a3,..."));
-
-static cl::opt<bool>
-RelaxAll("mc-relax-all",
- cl::desc("When used with filetype=obj, "
- "relax all fixups in the emitted object file"));
-
-cl::opt<TargetMachine::CodeGenFileType>
-FileType("filetype", cl::init(TargetMachine::CGFT_AssemblyFile),
- cl::desc("Choose a file type (not all types are supported by all targets):"),
- cl::values(
- clEnumValN(TargetMachine::CGFT_AssemblyFile, "asm",
- "Emit an assembly ('.s') file"),
- clEnumValN(TargetMachine::CGFT_ObjectFile, "obj",
- "Emit a native object ('.o') file [experimental]"),
- clEnumValN(TargetMachine::CGFT_Null, "null",
- "Emit nothing, for performance testing"),
- clEnumValEnd));
-
cl::opt<bool> NoVerify("disable-verify", cl::Hidden,
cl::desc("Do not verify input module"));
+cl::opt<bool>
+DisableSimplifyLibCalls("disable-simplify-libcalls",
+ cl::desc("Disable simplify-libcalls"),
+ cl::init(false));
-static cl::opt<bool>
-DisableRedZone("disable-red-zone",
- cl::desc("Do not emit code that uses the red zone."),
- cl::init(false));
-
-static cl::opt<bool>
-NoImplicitFloats("no-implicit-float",
- cl::desc("Don't generate implicit floating point instructions (x86-only)"),
- cl::init(false));
+static int compileModule(char**, LLVMContext&);
// GetFileNameRoot - Helper function to get the basename of a filename.
static inline std::string
OutputFilename = GetFileNameRoot(InputFilename);
switch (FileType) {
- default: assert(0 && "Unknown file type");
case TargetMachine::CGFT_AssemblyFile:
if (TargetName[0] == 'c') {
if (TargetName[1] == 0)
// Decide if we need "binary" output.
bool Binary = false;
switch (FileType) {
- default: assert(0 && "Unknown file type");
case TargetMachine::CGFT_AssemblyFile:
break;
case TargetMachine::CGFT_ObjectFile:
// Initialize targets first, so that --version shows registered targets.
InitializeAllTargets();
+ InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
- cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");
-
- // Load the module to be compiled...
- SMDiagnostic Err;
- std::auto_ptr<Module> M;
+ // Initialize codegen and IR passes used by llc so that the -print-after,
+ // -print-before, and -stop-after options work.
+ PassRegistry *Registry = PassRegistry::getPassRegistry();
+ initializeCore(*Registry);
+ initializeCodeGen(*Registry);
+ initializeLoopStrengthReducePass(*Registry);
+ initializeLowerIntrinsicsPass(*Registry);
+ initializeUnreachableBlockElimPass(*Registry);
- M.reset(ParseIRFile(InputFilename, Err, Context));
- if (M.get() == 0) {
- Err.Print(argv[0], errs());
- return 1;
- }
- Module &mod = *M.get();
+ // Register the target printer for --version.
+ cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
- // If we are supposed to override the target triple, do so now.
- if (!TargetTriple.empty())
- mod.setTargetTriple(Triple::normalize(TargetTriple));
+ cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");
- Triple TheTriple(mod.getTargetTriple());
- if (TheTriple.getTriple().empty())
- TheTriple.setTriple(sys::getHostTriple());
-
- // Allocate target machine. First, check whether the user has explicitly
- // specified an architecture to compile for. If so we have to look it up by
- // name, because it might be a backend that has no mapping to a target triple.
- const Target *TheTarget = 0;
- if (!MArch.empty()) {
- for (TargetRegistry::iterator it = TargetRegistry::begin(),
- ie = TargetRegistry::end(); it != ie; ++it) {
- if (MArch == it->getName()) {
- TheTarget = &*it;
- break;
- }
- }
+ // Compile the module TimeCompilations times to give better compile time
+ // metrics.
+ for (unsigned I = TimeCompilations; I; --I)
+ if (int RetVal = compileModule(argv, Context))
+ return RetVal;
+ return 0;
+}
- if (!TheTarget) {
- errs() << argv[0] << ": error: invalid target '" << MArch << "'.\n";
+static int compileModule(char **argv, LLVMContext &Context) {
+ // Load the module to be compiled...
+ SMDiagnostic Err;
+ std::auto_ptr<Module> M;
+ Module *mod = 0;
+ Triple TheTriple;
+
+ bool SkipModule = MCPU == "help" ||
+ (!MAttrs.empty() && MAttrs.front() == "help");
+
+ // If user just wants to list available options, skip module loading
+ if (!SkipModule) {
+ M.reset(ParseIRFile(InputFilename, Err, Context));
+ mod = M.get();
+ if (mod == 0) {
+ Err.print(argv[0], errs());
return 1;
}
- // Adjust the triple to match (if known), otherwise stick with the
- // module/host triple.
- Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
- if (Type != Triple::UnknownArch)
- TheTriple.setArch(Type);
+ // If we are supposed to override the target triple, do so now.
+ if (!TargetTriple.empty())
+ mod->setTargetTriple(Triple::normalize(TargetTriple));
+ TheTriple = Triple(mod->getTargetTriple());
} else {
- std::string Err;
- TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Err);
- if (TheTarget == 0) {
- errs() << argv[0] << ": error auto-selecting target for module '"
- << Err << "'. Please use the -march option to explicitly "
- << "pick a target.\n";
- return 1;
- }
+ TheTriple = Triple(Triple::normalize(TargetTriple));
+ }
+
+ if (TheTriple.getTriple().empty())
+ TheTriple.setTriple(sys::getDefaultTargetTriple());
+
+ // Get the target specific parser.
+ std::string Error;
+ const Target *TheTarget = TargetRegistry::lookupTarget(MArch, TheTriple,
+ Error);
+ if (!TheTarget) {
+ errs() << argv[0] << ": " << Error;
+ return 1;
}
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
- if (MCPU.size() || MAttrs.size()) {
+ if (MAttrs.size()) {
SubtargetFeatures Features;
- Features.setCPU(MCPU);
for (unsigned i = 0; i != MAttrs.size(); ++i)
Features.AddFeature(MAttrs[i]);
FeaturesStr = Features.getString();
}
- std::auto_ptr<TargetMachine>
- target(TheTarget->createTargetMachine(TheTriple.getTriple(), FeaturesStr));
- assert(target.get() && "Could not allocate target machine!");
- TargetMachine &Target = *target.get();
-
- // Figure out where we are going to send the output...
- OwningPtr<tool_output_file> Out
- (GetOutputStream(TheTarget->getName(), TheTriple.getOS(), argv[0]));
- if (!Out) return 1;
-
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
switch (OptLevel) {
default:
case '3': OLvl = CodeGenOpt::Aggressive; break;
}
+ TargetOptions Options;
+ Options.LessPreciseFPMADOption = EnableFPMAD;
+ Options.NoFramePointerElim = DisableFPElim;
+ Options.NoFramePointerElimNonLeaf = DisableFPElimNonLeaf;
+ 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.RealignStack = EnableRealignStack;
+ Options.TrapFuncName = TrapFuncName;
+ Options.PositionIndependentExecutable = EnablePIE;
+ Options.EnableSegmentedStacks = SegmentedStacks;
+ Options.UseInitArray = UseInitArray;
+ Options.SSPBufferSize = SSPBufferSize;
+
+ std::auto_ptr<TargetMachine>
+ target(TheTarget->createTargetMachine(TheTriple.getTriple(),
+ MCPU, FeaturesStr, Options,
+ RelocModel, CMModel, OLvl));
+ assert(target.get() && "Could not allocate target machine!");
+ assert(mod && "Should have exited after outputting help!");
+ TargetMachine &Target = *target.get();
+
+ if (DisableDotLoc)
+ Target.setMCUseLoc(false);
+
+ if (DisableCFI)
+ Target.setMCUseCFI(false);
+
+ if (EnableDwarfDirectory)
+ Target.setMCUseDwarfDirectory(true);
+
+ if (GenerateSoftFloatCalls)
+ FloatABIForCalls = FloatABI::Soft;
+
+ // Disable .loc support for older OS X versions.
+ if (TheTriple.isMacOSX() &&
+ TheTriple.isMacOSXVersionLT(10, 6))
+ Target.setMCUseLoc(false);
+
+ // Figure out where we are going to send the output.
+ OwningPtr<tool_output_file> Out
+ (GetOutputStream(TheTarget->getName(), TheTriple.getOS(), argv[0]));
+ if (!Out) return 1;
+
// Build up all of the passes that we want to do to the module.
PassManager PM;
+ // Add an appropriate TargetLibraryInfo pass for the module's triple.
+ TargetLibraryInfo *TLI = new TargetLibraryInfo(TheTriple);
+ if (DisableSimplifyLibCalls)
+ TLI->disableAllFunctions();
+ PM.add(TLI);
+
+ if (target.get()) {
+ PM.add(new TargetTransformInfo(target->getScalarTargetTransformInfo(),
+ target->getVectorTargetTransformInfo()));
+ }
+
// Add the target data from the target machine, if it exists, or the module.
- if (const TargetData *TD = Target.getTargetData())
- PM.add(new TargetData(*TD));
+ if (const DataLayout *TD = Target.getDataLayout())
+ PM.add(new DataLayout(*TD));
else
- PM.add(new TargetData(&mod));
+ PM.add(new DataLayout(mod));
// Override default to generate verbose assembly.
Target.setAsmVerbosityDefault(true);
{
formatted_raw_ostream FOS(Out->os());
+ AnalysisID StartAfterID = 0;
+ AnalysisID StopAfterID = 0;
+ const PassRegistry *PR = PassRegistry::getPassRegistry();
+ if (!StartAfter.empty()) {
+ const PassInfo *PI = PR->getPassInfo(StartAfter);
+ if (!PI) {
+ errs() << argv[0] << ": start-after pass is not registered.\n";
+ return 1;
+ }
+ StartAfterID = PI->getTypeInfo();
+ }
+ if (!StopAfter.empty()) {
+ const PassInfo *PI = PR->getPassInfo(StopAfter);
+ if (!PI) {
+ errs() << argv[0] << ": stop-after pass is not registered.\n";
+ return 1;
+ }
+ StopAfterID = PI->getTypeInfo();
+ }
+
// Ask the target to add backend passes as necessary.
- if (Target.addPassesToEmitFile(PM, FOS, FileType, OLvl, NoVerify)) {
+ if (Target.addPassesToEmitFile(PM, FOS, FileType, NoVerify,
+ StartAfterID, StopAfterID)) {
errs() << argv[0] << ": target does not support generation of this"
<< " file type!\n";
return 1;
}
- PM.run(mod);
+ // Before executing passes, print the final values of the LLVM options.
+ cl::PrintOptionValues();
+
+ PM.run(*mod);
}
// Declare success.
projects / oota-llvm.git / blobdiff