1 //===- ARCTargetMachine.cpp - Define TargetMachine for ARC ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
13 #include "ARCTargetMachine.h"
15 #include "ARCTargetTransformInfo.h"
16 #include "llvm/CodeGen/Passes.h"
17 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
18 #include "llvm/CodeGen/TargetPassConfig.h"
19 #include "llvm/Support/TargetRegistry.h"
23 static Reloc::Model getRelocModel(Optional<Reloc::Model> RM) {
29 static CodeModel::Model getEffectiveCodeModel(Optional<CodeModel::Model> CM) {
32 return CodeModel::Small;
35 /// ARCTargetMachine ctor - Create an ILP32 architecture model
36 ARCTargetMachine::ARCTargetMachine(const Target &T, const Triple &TT,
37 StringRef CPU, StringRef FS,
38 const TargetOptions &Options,
39 Optional<Reloc::Model> RM,
40 Optional<CodeModel::Model> CM,
41 CodeGenOpt::Level OL, bool JIT)
42 : LLVMTargetMachine(T,
43 "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-"
44 "f32:32:32-i64:32-f64:32-a:0:32-n32",
45 TT, CPU, FS, Options, getRelocModel(RM),
46 getEffectiveCodeModel(CM), OL),
47 TLOF(make_unique<TargetLoweringObjectFileELF>()),
48 Subtarget(TT, CPU, FS, *this) {
52 ARCTargetMachine::~ARCTargetMachine() = default;
56 /// ARC Code Generator Pass Configuration Options.
57 class ARCPassConfig : public TargetPassConfig {
59 ARCPassConfig(ARCTargetMachine &TM, PassManagerBase &PM)
60 : TargetPassConfig(TM, PM) {}
62 ARCTargetMachine &getARCTargetMachine() const {
63 return getTM<ARCTargetMachine>();
66 bool addInstSelector() override;
67 void addPreEmitPass() override;
68 void addPreRegAlloc() override;
71 } // end anonymous namespace
73 TargetPassConfig *ARCTargetMachine::createPassConfig(PassManagerBase &PM) {
74 return new ARCPassConfig(*this, PM);
77 bool ARCPassConfig::addInstSelector() {
78 addPass(createARCISelDag(getARCTargetMachine(), getOptLevel()));
82 void ARCPassConfig::addPreEmitPass() { addPass(createARCBranchFinalizePass()); }
84 void ARCPassConfig::addPreRegAlloc() { addPass(createARCExpandPseudosPass()); }
86 // Force static initialization.
87 extern "C" void LLVMInitializeARCTarget() {
88 RegisterTargetMachine<ARCTargetMachine> X(getTheARCTarget());
92 ARCTargetMachine::getTargetTransformInfo(const Function &F) {
93 return TargetTransformInfo(ARCTTIImpl(this, F));