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ae9d43c167
I.e., llvm/CodeGen/CommandFlags.h which in turn includes llvm/MC/MCTargetOptionsCommandFlags.h. This gets rid of a few duplicates on our side and includes about 35 (depending on LLVM version) new command-line options. LLVM provides a helper function to set up the TargetOptions according to (most of) these options. Newer LLVM versions may add new options and we'll automatically inherit them, including setting up the TargetOptions accordingly. I did my best (TM) to remove a few unused/undesirable options and hide all remaining new ones except for `-fp-contract`. The lists will need to be tweaked from time to time.
82 lines
2.2 KiB
C++
82 lines
2.2 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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#ifndef LDC_DRIVER_TARGET_H
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#define LDC_DRIVER_TARGET_H
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#if LDC_LLVM_VER >= 309
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#include "llvm/ADT/Optional.h"
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#endif
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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 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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*
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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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#if LDC_LLVM_VER >= 309
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llvm::Optional<llvm::Reloc::Model> relocModel,
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#else
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llvm::Reloc::Model relocModel,
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#endif
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llvm::CodeModel::Model codeModel,
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llvm::CodeGenOpt::Level 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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#endif // LDC_DRIVER_TARGET_H
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