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94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
//===-- driver/targetmachine.h - LLVM target setup --------------*- C++ -*-===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Handles setting up an LLVM TargetMachine from the ugiven command-line
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// arguments.
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//
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//===----------------------------------------------------------------------===//
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#pragma once
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#if LDC_LLVM_VER < 1700
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#include "llvm/ADT/Optional.h"
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#else
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#include <optional>
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namespace llvm {
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template <typename T> using Optional = std::optional<T>;
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}
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#endif
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/CodeGen.h"
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#include <string>
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#include <vector>
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namespace llvm {
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#if LDC_LLVM_VER < 1800
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using CodeGenOptLevel = llvm::CodeGenOpt::Level;
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#endif
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}
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namespace ExplicitBitness {
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enum Type { None, M32, M64 };
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}
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namespace FloatABI {
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enum Type { Default, Soft, SoftFP, Hard };
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}
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namespace MipsABI {
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enum Type { Unknown, O32, N32, N64, EABI };
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}
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namespace llvm {
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class Triple;
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class Target;
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class TargetMachine;
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class Module;
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}
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namespace ComputeBackend {
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enum Type { None, SPIRV, NVPTX };
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}
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ComputeBackend::Type getComputeTargetType(llvm::Module*);
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/**
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* Creates an LLVM TargetMachine suitable for the given (usually command-line)
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* parameters and the host platform defaults.
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* Also finalizes floatABI if it's set to FloatABI::Default.
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*
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* Does not depend on any global state.
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*/
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llvm::TargetMachine *
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createTargetMachine(std::string targetTriple, std::string arch, std::string cpu,
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std::string featuresString, ExplicitBitness::Type bitness,
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FloatABI::Type &floatABI,
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llvm::Optional<llvm::Reloc::Model> relocModel,
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llvm::Optional<llvm::CodeModel::Model> codeModel,
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llvm::CodeGenOptLevel codeGenOptLevel,
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bool noLinkerStripDead);
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/**
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* Returns the Mips ABI which is used for code generation.
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*
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* Function may only be called after the target machine is created.
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* Returns MipsABI::Unknown in case the ABI is not known (e.g. not compiling
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* for Mips).
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*/
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MipsABI::Type getMipsABI();
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// Looks up a target based on an arch name and a target triple.
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const llvm::Target *lookupTarget(const std::string &arch, llvm::Triple &triple,
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std::string &errorMsg);
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const char *getABI(const llvm::Triple &triple,
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const llvm::SmallVectorImpl<llvm::StringRef> &features);
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bool isFeatureEnabled(const llvm::SmallVectorImpl<llvm::StringRef> &features,
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llvm::StringRef feature);
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