#include "llvm/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/Analysis/Verifier.h"
#include "llvm/Support/IRReader.h"
#include "llvm/CodeGen/LinkAllAsmWriterComponents.h"
#include "llvm/CodeGen/LinkAllCodegenComponents.h"
#include "llvm/Config/config.h"
+#include "llvm/MC/SubtargetFeature.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/FormattedStream.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/Support/ToolOutputFile.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetRegistry.h"
-#include "llvm/Target/TargetSelect.h"
#include <memory>
using namespace llvm;
cl::desc("Target specific attributes (-mattr=help for details)"),
cl::value_desc("a1,+a2,-a3,..."));
+static cl::opt<Reloc::Model>
+RelocModel("relocation-model",
+ cl::desc("Choose relocation model"),
+ cl::init(Reloc::Default),
+ cl::values(
+ clEnumValN(Reloc::Default, "default",
+ "Target default relocation model"),
+ clEnumValN(Reloc::Static, "static",
+ "Non-relocatable code"),
+ clEnumValN(Reloc::PIC_, "pic",
+ "Fully relocatable, position independent code"),
+ clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic",
+ "Relocatable external references, non-relocatable code"),
+ clEnumValEnd));
+
+static cl::opt<llvm::CodeModel::Model>
+CMModel("code-model",
+ cl::desc("Choose code model"),
+ cl::init(CodeModel::Default),
+ cl::values(clEnumValN(CodeModel::Default, "default",
+ "Target default code model"),
+ clEnumValN(CodeModel::Small, "small",
+ "Small code model"),
+ clEnumValN(CodeModel::Kernel, "kernel",
+ "Kernel code model"),
+ clEnumValN(CodeModel::Medium, "medium",
+ "Medium code model"),
+ clEnumValN(CodeModel::Large, "large",
+ "Large code model"),
+ clEnumValEnd));
+
static cl::opt<bool>
-RelaxAll("mc-relax-all", cl::desc("Relax all fixups"));
+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::opt<bool> NoVerify("disable-verify", cl::Hidden,
cl::desc("Do not verify input module"));
+cl::opt<bool> DisableDotLoc("disable-dot-loc", cl::Hidden,
+ cl::desc("Do not use .loc entries"));
+
+cl::opt<bool> DisableCFI("disable-cfi", cl::Hidden,
+ cl::desc("Do not use .cfi_* directives"));
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));
-
// GetFileNameRoot - Helper function to get the basename of a filename.
static inline std::string
GetFileNameRoot(const std::string &InputFilename) {
return outputFilename;
}
-static formatted_raw_ostream *GetOutputStream(const char *TargetName,
- Triple::OSType OS,
- const char *ProgName) {
- if (OutputFilename != "") {
- if (OutputFilename == "-")
- return new formatted_raw_ostream(outs(),
- formatted_raw_ostream::PRESERVE_STREAM);
-
- // Make sure that the Out file gets unlinked from the disk if we get a
- // SIGINT
- sys::RemoveFileOnSignal(sys::Path(OutputFilename));
-
- std::string error;
- raw_fd_ostream *FDOut =
- new raw_fd_ostream(OutputFilename.c_str(), error,
- raw_fd_ostream::F_Binary);
- if (!error.empty()) {
- errs() << error << '\n';
- delete FDOut;
- return 0;
+static tool_output_file *GetOutputStream(const char *TargetName,
+ Triple::OSType OS,
+ const char *ProgName) {
+ // If we don't yet have an output filename, make one.
+ if (OutputFilename.empty()) {
+ if (InputFilename == "-")
+ OutputFilename = "-";
+ else {
+ OutputFilename = GetFileNameRoot(InputFilename);
+
+ switch (FileType) {
+ default: assert(0 && "Unknown file type");
+ case TargetMachine::CGFT_AssemblyFile:
+ if (TargetName[0] == 'c') {
+ if (TargetName[1] == 0)
+ OutputFilename += ".cbe.c";
+ else if (TargetName[1] == 'p' && TargetName[2] == 'p')
+ OutputFilename += ".cpp";
+ else
+ OutputFilename += ".s";
+ } else
+ OutputFilename += ".s";
+ break;
+ case TargetMachine::CGFT_ObjectFile:
+ if (OS == Triple::Win32)
+ OutputFilename += ".obj";
+ else
+ OutputFilename += ".o";
+ break;
+ case TargetMachine::CGFT_Null:
+ OutputFilename += ".null";
+ break;
+ }
}
- formatted_raw_ostream *Out =
- new formatted_raw_ostream(*FDOut, formatted_raw_ostream::DELETE_STREAM);
-
- return Out;
- }
-
- if (InputFilename == "-") {
- OutputFilename = "-";
- return new formatted_raw_ostream(outs(),
- formatted_raw_ostream::PRESERVE_STREAM);
}
- OutputFilename = GetFileNameRoot(InputFilename);
-
+ // Decide if we need "binary" output.
bool Binary = false;
switch (FileType) {
default: assert(0 && "Unknown file type");
case TargetMachine::CGFT_AssemblyFile:
- if (TargetName[0] == 'c') {
- if (TargetName[1] == 0)
- OutputFilename += ".cbe.c";
- else if (TargetName[1] == 'p' && TargetName[2] == 'p')
- OutputFilename += ".cpp";
- else
- OutputFilename += ".s";
- } else
- OutputFilename += ".s";
break;
case TargetMachine::CGFT_ObjectFile:
- if (OS == Triple::Win32)
- OutputFilename += ".obj";
- else
- OutputFilename += ".o";
- Binary = true;
- break;
case TargetMachine::CGFT_Null:
- OutputFilename += ".null";
Binary = true;
break;
}
- // Make sure that the Out file gets unlinked from the disk if we get a
- // SIGINT
- sys::RemoveFileOnSignal(sys::Path(OutputFilename));
-
+ // Open the file.
std::string error;
unsigned OpenFlags = 0;
if (Binary) OpenFlags |= raw_fd_ostream::F_Binary;
- raw_fd_ostream *FDOut = new raw_fd_ostream(OutputFilename.c_str(), error,
- OpenFlags);
+ tool_output_file *FDOut = new tool_output_file(OutputFilename.c_str(), error,
+ OpenFlags);
if (!error.empty()) {
errs() << error << '\n';
delete FDOut;
return 0;
}
- formatted_raw_ostream *Out =
- new formatted_raw_ostream(*FDOut, formatted_raw_ostream::DELETE_STREAM);
-
- return Out;
+ return FDOut;
}
// main - Entry point for the llc compiler.
// Initialize targets first, so that --version shows registered targets.
InitializeAllTargets();
+ InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
+ // Register the target printer for --version.
+ cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
+
cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");
-
+
// Load the module to be compiled...
SMDiagnostic Err;
std::auto_ptr<Module> M;
M.reset(ParseIRFile(InputFilename, Err, Context));
if (M.get() == 0) {
- Err.Print(argv[0], errs());
+ Err.print(argv[0], errs());
return 1;
}
Module &mod = *M.get();
// If we are supposed to override the target triple, do so now.
if (!TargetTriple.empty())
- mod.setTargetTriple(TargetTriple);
+ mod.setTargetTriple(Triple::normalize(TargetTriple));
Triple TheTriple(mod.getTargetTriple());
if (TheTriple.getTriple().empty())
// 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));
+ std::auto_ptr<TargetMachine>
+ target(TheTarget->createTargetMachine(TheTriple.getTriple(),
+ MCPU, FeaturesStr,
+ RelocModel, CMModel));
assert(target.get() && "Could not allocate target machine!");
TargetMachine &Target = *target.get();
+ if (DisableDotLoc)
+ Target.setMCUseLoc(false);
+
+ if (DisableCFI)
+ Target.setMCUseCFI(false);
+
+ // 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...
- formatted_raw_ostream *Out = GetOutputStream(TheTarget->getName(),
- TheTriple.getOS(), argv[0]);
- if (Out == 0) return 1;
+ OwningPtr<tool_output_file> Out
+ (GetOutputStream(TheTarget->getName(), TheTriple.getOS(), argv[0]));
+ if (!Out) return 1;
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
switch (OptLevel) {
case '3': OLvl = CodeGenOpt::Aggressive; break;
}
- // Request that addPassesToEmitFile run the Verifier after running
- // passes which modify the IR.
-#ifndef NDEBUG
- bool DisableVerify = false;
-#else
- bool DisableVerify = true;
-#endif
-
// Build up all of the passes that we want to do to the module.
PassManager PM;
else
PM.add(new TargetData(&mod));
- if (!NoVerify)
- PM.add(createVerifierPass());
-
// Override default to generate verbose assembly.
Target.setAsmVerbosityDefault(true);
Target.setMCRelaxAll(true);
}
- // Ask the target to add backend passes as necessary.
- if (Target.addPassesToEmitFile(PM, *Out, FileType, OLvl,
- DisableVerify)) {
- errs() << argv[0] << ": target does not support generation of this"
- << " file type!\n";
- delete Out;
- // And the Out file is empty and useless, so remove it now.
- sys::Path(OutputFilename).eraseFromDisk();
- return 1;
- }
+ {
+ formatted_raw_ostream FOS(Out->os());
+
+ // Ask the target to add backend passes as necessary.
+ if (Target.addPassesToEmitFile(PM, FOS, FileType, OLvl, NoVerify)) {
+ 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);
+ }
- // Delete the ostream.
- delete Out;
+ // Declare success.
+ Out->keep();
return 0;
}
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