void emit_file(llvm::Module &module, Internal::LLVMOStream& out, llvm::TargetMachine::CodeGenFileType file_type) {
Internal::debug(1) << "emit_file.Compiling to native code...\n";
Internal::debug(2) << "Target triple: " << module.getTargetTriple() << "\n";
// Get the target specific parser.
auto target_machine = Internal::make_target_machine(module);
internal_assert(target_machine.get()) << "Could not allocate target machine!\n";
#if LLVM_VERSION == 37
llvm::DataLayout target_data_layout(*(target_machine->getDataLayout()));
#else
llvm::DataLayout target_data_layout(target_machine->createDataLayout());
#endif
if (!(target_data_layout == module.getDataLayout())) {
internal_error << "Warning: module's data layout does not match target machine's\n"
<< target_data_layout.getStringRepresentation() << "\n"
<< module.getDataLayout().getStringRepresentation() << "\n";
}
// Build up all of the passes that we want to do to the module.
llvm::legacy::PassManager pass_manager;
pass_manager.add(new llvm::TargetLibraryInfoWrapperPass(llvm::Triple(module.getTargetTriple())));
// Make sure things marked as always-inline get inlined
#if LLVM_VERSION < 40
pass_manager.add(llvm::createAlwaysInlinerPass());
#else
pass_manager.add(llvm::createAlwaysInlinerLegacyPass());
#endif
// Enable symbol rewriting. This allows code outside libHalide to
// use symbol rewriting when compiling Halide code (for example, by
// using cl::ParseCommandLineOption and then passing the appropriate
// rewrite options via -mllvm flags).
pass_manager.add(llvm::createRewriteSymbolsPass());
// Override default to generate verbose assembly.
target_machine->Options.MCOptions.AsmVerbose = true;
// Ask the target to add backend passes as necessary.
target_machine->addPassesToEmitFile(pass_manager, out, file_type);
pass_manager.run(module);
}
void emit_file_legacy(llvm::Module &module, Internal::LLVMOStream& out, llvm::TargetMachine::CodeGenFileType file_type) {
Internal::debug(1) << "emit_file_legacy.Compiling to native code...\n";
Internal::debug(2) << "Target triple: " << module.getTargetTriple() << "\n";
// Get the target specific parser.
auto target_machine = Internal::make_target_machine(module);
internal_assert(target_machine.get()) << "Could not allocate target machine!\n";
// Build up all of the passes that we want to do to the module.
llvm::PassManager pass_manager;
// Add an appropriate TargetLibraryInfo pass for the module's triple.
pass_manager.add(new llvm::TargetLibraryInfo(llvm::Triple(module.getTargetTriple())));
#if LLVM_VERSION < 33
pass_manager.add(new llvm::TargetTransformInfo(target_machine->getScalarTargetTransformInfo(),
target_machine->getVectorTargetTransformInfo()));
#else
target_machine->addAnalysisPasses(pass_manager);
#endif
#if LLVM_VERSION < 35
llvm::DataLayout *layout = new llvm::DataLayout(module.get());
Internal::debug(2) << "Data layout: " << layout->getStringRepresentation();
pass_manager.add(layout);
#endif
// Make sure things marked as always-inline get inlined
pass_manager.add(llvm::createAlwaysInlinerPass());
// Override default to generate verbose assembly.
target_machine->setAsmVerbosityDefault(true);
std::unique_ptr<llvm::formatted_raw_ostream> formatted_out(new llvm::formatted_raw_ostream(out));
// Ask the target to add backend passes as necessary.
target_machine->addPassesToEmitFile(pass_manager, *formatted_out, file_type);
pass_manager.run(module);
}
void emit_file(llvm::Module &module, Internal::LLVMOStream& out, llvm::TargetMachine::CodeGenFileType file_type) {
#if LLVM_VERSION < 37
emit_file_legacy(module, out, file_type);
#else
Internal::debug(1) << "emit_file.Compiling to native code...\n";
Internal::debug(2) << "Target triple: " << module.getTargetTriple() << "\n";
// Get the target specific parser.
auto target_machine = Internal::make_target_machine(module);
internal_assert(target_machine.get()) << "Could not allocate target machine!\n";
#if LLVM_VERSION == 37
llvm::DataLayout target_data_layout(*(target_machine->getDataLayout()));
#else
llvm::DataLayout target_data_layout(target_machine->createDataLayout());
#endif
if (!(target_data_layout == module.getDataLayout())) {
internal_error << "Warning: module's data layout does not match target machine's\n"
<< target_data_layout.getStringRepresentation() << "\n"
<< module.getDataLayout().getStringRepresentation() << "\n";
}
// Build up all of the passes that we want to do to the module.
llvm::legacy::PassManager pass_manager;
pass_manager.add(new llvm::TargetLibraryInfoWrapperPass(llvm::Triple(module.getTargetTriple())));
// Make sure things marked as always-inline get inlined
pass_manager.add(llvm::createAlwaysInlinerPass());
// Override default to generate verbose assembly.
target_machine->Options.MCOptions.AsmVerbose = true;
// Ask the target to add backend passes as necessary.
target_machine->addPassesToEmitFile(pass_manager, out, file_type);
pass_manager.run(module);
#endif
}
