bool MipsOs16::runOnModule(Module &M) {
DEBUG(errs() << "Run on Module MipsOs16\n");
bool modified = false;
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
if (F->isDeclaration()) continue;
DEBUG(dbgs() << "Working on " << F->getName() << "\n");
if (needsFP(*F)) {
DEBUG(dbgs() << " need to compile as nomips16 \n");
F->addFnAttr("nomips16");
}
else {
F->addFnAttr("mips16");
DEBUG(dbgs() << " no need to compile as nomips16 \n");
}
}
return modified;
}
bool AddAlwaysInlineAttributePass::runOnModule(Module &M) {
bool modified = false;
for (Module::iterator funcIt = M.begin(); funcIt != M.end(); ++funcIt) {
if (std::find(targetFunctions.begin(), targetFunctions.end(), funcIt->getName()) != targetFunctions.end()) {
funcIt->addFnAttr(Attribute::AlwaysInline);
modified = true;
}
}
return modified;
}
bool MipsOs16::runOnModule(Module &M) {
bool usingMask = Mips32FunctionMask.length() > 0;
bool doneUsingMask = false; // this will make it stop repeating
DEBUG(dbgs() << "Run on Module MipsOs16 \n" << Mips32FunctionMask << "\n");
if (usingMask)
DEBUG(dbgs() << "using mask \n" << Mips32FunctionMask << "\n");
unsigned int functionIndex = 0;
bool modified = false;
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
if (F->isDeclaration()) continue;
DEBUG(dbgs() << "Working on " << F->getName() << "\n");
if (usingMask) {
if (!doneUsingMask) {
if (functionIndex == Mips32FunctionMask.length())
functionIndex = 0;
switch (Mips32FunctionMask[functionIndex]) {
case '1':
DEBUG(dbgs() << "mask forced mips32: " << F->getName() << "\n");
F->addFnAttr("nomips16");
break;
case '.':
doneUsingMask = true;
break;
default:
break;
}
functionIndex++;
}
}
else {
if (needsFP(*F)) {
DEBUG(dbgs() << "os16 forced mips32: " << F->getName() << "\n");
F->addFnAttr("nomips16");
}
else {
DEBUG(dbgs() << "os16 forced mips16: " << F->getName() << "\n");
F->addFnAttr("mips16");
}
}
}
return modified;
}
std::vector<Function*> functions(Module &M) {
std::vector<Function*> functions;
for (Module::iterator F = M.begin(); F != M.end(); ++F) {
if (!F->isDeclaration()) {
F->addFnAttr("kernel");
}
functions.push_back(F);
}
return functions;
}
// main - Entry point for the llc compiler.
//
int main(int argc, char **argv) {
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
// Enable debug stream buffering.
EnableDebugBuffering = true;
LLVMContext &Context = getGlobalContext();
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
// Initialize targets first, so that --version shows registered targets.
InitializeAllTargets();
InitializeAllAsmPrinters();
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());
return 1;
}
Module &mod = *M.get();
// If we are supposed to override the target triple, do so now.
if (!TargetTriple.empty())
mod.setTargetTriple(TargetTriple);
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;
}
}
if (!TheTarget) {
errs() << argv[0] << ": error: invalid target '" << MArch << "'.\n";
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);
} 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;
}
}
// 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(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...
formatted_raw_ostream *Out = GetOutputStream(TheTarget->getName(), argv[0]);
if (Out == 0) return 1;
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
switch (OptLevel) {
default:
errs() << argv[0] << ": invalid optimization level.\n";
return 1;
case ' ': break;
case '0': OLvl = CodeGenOpt::None; break;
case '1': OLvl = CodeGenOpt::Less; break;
case '2': OLvl = CodeGenOpt::Default; break;
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
// If this target requires addPassesToEmitWholeFile, do it now. This is
// used by strange things like the C backend.
if (Target.WantsWholeFile()) {
PassManager PM;
// 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));
else
PM.add(new TargetData(&mod));
if (!NoVerify)
PM.add(createVerifierPass());
// Ask the target to add backend passes as necessary.
if (Target.addPassesToEmitWholeFile(PM, *Out, FileType, OLvl,
DisableVerify)) {
errs() << argv[0] << ": target does not support generation of this"
<< " file type!\n";
if (Out != &fouts()) 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(M.get());
// Add the target data from the target machine, if it exists, or the module.
if (const TargetData *TD = Target.getTargetData())
Passes.add(new TargetData(*TD));
else
Passes.add(new TargetData(&mod));
#ifndef NDEBUG
if (!NoVerify)
Passes.add(createVerifierPass());
#endif
// Override default to generate verbose assembly.
Target.setAsmVerbosityDefault(true);
if (Target.addPassesToEmitFile(Passes, *Out, FileType, OLvl,
DisableVerify)) {
errs() << argv[0] << ": target does not support generation of this"
<< " file type!\n";
if (Out != &fouts()) 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()) {
if (DisableRedZone)
I->addFnAttr(Attribute::NoRedZone);
if (NoImplicitFloats)
I->addFnAttr(Attribute::NoImplicitFloat);
Passes.run(*I);
}
Passes.doFinalization();
}
// Delete the ostream if it's not a stdout stream
if (Out != &fouts()) delete Out;
return 0;
}