//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is the llc code generator driver. It provides a convenient
// command-line interface for generating native assembly-language code
-// or C code, given LLVM bytecode.
+// or C code, given LLVM bitcode.
//
//===----------------------------------------------------------------------===//
-#include "llvm/Bytecode/Reader.h"
+#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/CodeGen/FileWriters.h"
#include "llvm/CodeGen/LinkAllCodegenComponents.h"
#include "llvm/Target/SubtargetFeature.h"
#include "llvm/Target/TargetMachineRegistry.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Module.h"
+#include "llvm/ModuleProvider.h"
#include "llvm/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Compressor.h"
#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PluginLoader.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Analysis/Verifier.h"
#include <fstream>
#include <iostream>
#include <memory>
-
using namespace llvm;
// General options for llc. Other pass-specific options are specified
// and back-end code generation options are specified with the target machine.
//
static cl::opt<std::string>
-InputFilename(cl::Positional, cl::desc("<input bytecode>"), cl::init("-"));
+InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
static cl::opt<std::string>
OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"));
static cl::opt<std::string>
TargetTriple("mtriple", cl::desc("Override target triple for module"));
-static cl::opt<const TargetMachineRegistry::Entry*, false, TargetNameParser>
+static cl::opt<const TargetMachineRegistry::entry*, false,
+ TargetMachineRegistry::Parser>
MArch("march", cl::desc("Architecture to generate code for:"));
static cl::opt<std::string>
switch (FileType) {
case TargetMachine::AssemblyFile:
- if (MArch->Name[0] != 'c' || MArch->Name[1] != 0) // not CBE
+ if (MArch->Name[0] == 'c') {
+ if (MArch->Name[1] == 0)
+ OutputFilename += ".cbe.c";
+ else if (MArch->Name[1] == 'p' && MArch->Name[2] == 'p')
+ OutputFilename += ".cpp";
+ else
+ OutputFilename += ".s";
+ } else
OutputFilename += ".s";
- else
- OutputFilename += ".cbe.c";
break;
case TargetMachine::ObjectFile:
OutputFilename += ".o";
//
int main(int argc, char **argv) {
llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
- try {
- cl::ParseCommandLineOptions(argc, argv, " llvm system compiler\n");
- sys::PrintStackTraceOnErrorSignal();
+ cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");
+ sys::PrintStackTraceOnErrorSignal();
- // Load the module to be compiled...
- std::auto_ptr<Module> M(ParseBytecodeFile(InputFilename,
- Compressor::decompressToNewBuffer));
- if (M.get() == 0) {
- std::cerr << argv[0] << ": bytecode didn't read correctly.\n";
+ // Load the module to be compiled...
+ std::string ErrorMessage;
+ std::auto_ptr<Module> M;
+
+ std::auto_ptr<MemoryBuffer> Buffer(
+ MemoryBuffer::getFileOrSTDIN(InputFilename, &ErrorMessage));
+ if (Buffer.get())
+ M.reset(ParseBitcodeFile(Buffer.get(), &ErrorMessage));
+ if (M.get() == 0) {
+ std::cerr << argv[0] << ": bitcode didn't read correctly.\n";
+ std::cerr << "Reason: " << ErrorMessage << "\n";
+ return 1;
+ }
+ Module &mod = *M.get();
+
+ // If we are supposed to override the target triple, do so now.
+ if (!TargetTriple.empty())
+ mod.setTargetTriple(TargetTriple);
+
+ // Allocate target machine. First, check whether the user has
+ // explicitly specified an architecture to compile for.
+ if (MArch == 0) {
+ std::string Err;
+ MArch = TargetMachineRegistry::getClosestStaticTargetForModule(mod, Err);
+ if (MArch == 0) {
+ std::cerr << argv[0] << ": error auto-selecting target for module '"
+ << Err << "'. Please use the -march option to explicitly "
+ << "pick a target.\n";
return 1;
}
- Module &mod = *M.get();
+ }
- // If we are supposed to override the target triple, do so now.
- if (!TargetTriple.empty())
- mod.setTargetTriple(TargetTriple);
-
- // Allocate target machine. First, check whether the user has
- // explicitly specified an architecture to compile for.
- if (MArch == 0) {
- std::string Err;
- MArch = TargetMachineRegistry::getClosestStaticTargetForModule(mod, Err);
- if (MArch == 0) {
- std::cerr << argv[0] << ": error auto-selecting target for module '"
- << Err << "'. Please use the -march option to explicitly "
- << "pick a target.\n";
- return 1;
- }
- }
+ // Package up features to be passed to target/subtarget
+ std::string FeaturesStr;
+ if (MCPU.size() || 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(MArch->CtorFn(mod, FeaturesStr));
+ assert(target.get() && "Could not allocate target machine!");
+ TargetMachine &Target = *target.get();
- // Package up features to be passed to target/subtarget
- std::string FeaturesStr;
- if (MCPU.size() || MAttrs.size()) {
- SubtargetFeatures Features;
- Features.setCPU(MCPU);
- for (unsigned i = 0; i != MAttrs.size(); ++i)
- Features.AddFeature(MAttrs[i]);
- FeaturesStr = Features.getString();
+ // Figure out where we are going to send the output...
+ std::ostream *Out = GetOutputStream(argv[0]);
+ if (Out == 0) return 1;
+
+ // If this target requires addPassesToEmitWholeFile, do it now. This is
+ // used by strange things like the C backend.
+ if (Target.WantsWholeFile()) {
+ PassManager PM;
+ PM.add(new TargetData(*Target.getTargetData()));
+ if (!NoVerify)
+ PM.add(createVerifierPass());
+
+ // Ask the target to add backend passes as necessary.
+ if (Target.addPassesToEmitWholeFile(PM, *Out, FileType, Fast)) {
+ std::cerr << argv[0] << ": target does not support generation of this"
+ << " file type!\n";
+ if (Out != &std::cout) delete Out;
+ // And the Out file is empty and useless, so remove it now.
+ sys::Path(OutputFilename).eraseFromDisk();
+ return 1;
}
-
- std::auto_ptr<TargetMachine> target(MArch->CtorFn(mod, FeaturesStr));
- assert(target.get() && "Could not allocate target machine!");
- TargetMachine &Target = *target.get();
-
- // Figure out where we are going to send the output...
- std::ostream *Out = GetOutputStream(argv[0]);
- if (Out == 0) return 1;
+ PM.run(mod);
+ } else {
+ // Build up all of the passes that we want to do to the module.
+ ExistingModuleProvider Provider(M.release());
+ FunctionPassManager Passes(&Provider);
+ Passes.add(new TargetData(*Target.getTargetData()));
- // If this target requires addPassesToEmitWholeFile, do it now. This is
- // used by strange things like the C backend.
- if (Target.WantsWholeFile()) {
- PassManager PM;
- PM.add(new TargetData(*Target.getTargetData()));
- if (!NoVerify)
- PM.add(createVerifierPass());
-
- // Ask the target to add backend passes as necessary.
- if (Target.addPassesToEmitWholeFile(PM, *Out, FileType, Fast)) {
- std::cerr << argv[0] << ": target does not support generation of this"
- << " file type!\n";
- if (Out != &std::cout) delete Out;
- // And the Out file is empty and useless, so remove it now.
- sys::Path(OutputFilename).eraseFromDisk();
- return 1;
- }
- PM.run(mod);
- } else {
- // Build up all of the passes that we want to do to the module.
- FunctionPassManager Passes(new ExistingModuleProvider(M.get()));
- Passes.add(new TargetData(*Target.getTargetData()));
-
#ifndef NDEBUG
- if (!NoVerify)
- Passes.add(createVerifierPass());
+ if (!NoVerify)
+ Passes.add(createVerifierPass());
#endif
-
- // Ask the target to add backend passes as necessary.
- MachineCodeEmitter *MCE = 0;
+
+ // Ask the target to add backend passes as necessary.
+ MachineCodeEmitter *MCE = 0;
- switch (Target.addPassesToEmitFile(Passes, *Out, FileType, Fast)) {
- default:
- assert(0 && "Invalid file model!");
- return 1;
- case FileModel::Error:
- std::cerr << argv[0] << ": target does not support generation of this"
- << " file type!\n";
- if (Out != &std::cout) delete Out;
- // And the Out file is empty and useless, so remove it now.
- sys::Path(OutputFilename).eraseFromDisk();
- return 1;
- case FileModel::AsmFile:
- break;
- case FileModel::MachOFile:
- MCE = AddMachOWriter(Passes, *Out, Target);
- break;
- case FileModel::ElfFile:
- MCE = AddELFWriter(Passes, *Out, Target);
- break;
- }
+ switch (Target.addPassesToEmitFile(Passes, *Out, FileType, Fast)) {
+ default:
+ assert(0 && "Invalid file model!");
+ return 1;
+ case FileModel::Error:
+ std::cerr << argv[0] << ": target does not support generation of this"
+ << " file type!\n";
+ if (Out != &std::cout) delete Out;
+ // And the Out file is empty and useless, so remove it now.
+ sys::Path(OutputFilename).eraseFromDisk();
+ return 1;
+ case FileModel::AsmFile:
+ break;
+ case FileModel::MachOFile:
+ MCE = AddMachOWriter(Passes, *Out, Target);
+ break;
+ case FileModel::ElfFile:
+ MCE = AddELFWriter(Passes, *Out, Target);
+ break;
+ }
- if (Target.addPassesToEmitFileFinish(Passes, MCE, Fast)) {
- std::cerr << argv[0] << ": target does not support generation of this"
- << " file type!\n";
- if (Out != &std::cout) delete Out;
- // And the Out file is empty and useless, so remove it now.
- sys::Path(OutputFilename).eraseFromDisk();
- return 1;
- }
+ if (Target.addPassesToEmitFileFinish(Passes, MCE, Fast)) {
+ std::cerr << argv[0] << ": target does not support generation of this"
+ << " file type!\n";
+ if (Out != &std::cout) delete Out;
+ // And the Out file is empty and useless, so remove it now.
+ sys::Path(OutputFilename).eraseFromDisk();
+ return 1;
+ }
+
+ Passes.doInitialization();
+
+ // Run our queue of passes all at once now, efficiently.
+ // TODO: this could lazily stream functions out of the module.
+ for (Module::iterator I = mod.begin(), E = mod.end(); I != E; ++I)
+ if (!I->isDeclaration())
+ Passes.run(*I);
- Passes.doInitialization();
+ Passes.doFinalization();
+ }
- // Run our queue of passes all at once now, efficiently.
- // TODO: this could lazily stream functions out of the module.
- for (Module::iterator I = mod.begin(), E = mod.end(); I != E; ++I)
- if (!I->isDeclaration())
- Passes.run(*I);
-
- Passes.doFinalization();
- }
-
- // Delete the ostream if it's not a stdout stream
- if (Out != &std::cout) delete Out;
+ // Delete the ostream if it's not a stdout stream
+ if (Out != &std::cout) delete Out;
- return 0;
- } catch (const std::string& msg) {
- std::cerr << argv[0] << ": " << msg << "\n";
- } catch (...) {
- std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
- }
- return 1;
+ return 0;
}
projects / oota-llvm.git / blobdiff