1 //===- ARCTargetMachine.cpp - Define TargetMachine for ARC ------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "ARCTargetMachine.h"
14 #include "ARC.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"
20
21 using namespace llvm;
22
getRelocModel(Optional<Reloc::Model> RM)23 static Reloc::Model getRelocModel(Optional<Reloc::Model> RM) {
24 if (!RM.hasValue())
25 return Reloc::Static;
26 return *RM;
27 }
28
getEffectiveCodeModel(Optional<CodeModel::Model> CM)29 static CodeModel::Model getEffectiveCodeModel(Optional<CodeModel::Model> CM) {
30 if (CM)
31 return *CM;
32 return CodeModel::Small;
33 }
34
35 /// ARCTargetMachine ctor - Create an ILP32 architecture model
ARCTargetMachine(const Target & T,const Triple & TT,StringRef CPU,StringRef FS,const TargetOptions & Options,Optional<Reloc::Model> RM,Optional<CodeModel::Model> CM,CodeGenOpt::Level OL,bool JIT)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) {
49 initAsmInfo();
50 }
51
52 ARCTargetMachine::~ARCTargetMachine() = default;
53
54 namespace {
55
56 /// ARC Code Generator Pass Configuration Options.
57 class ARCPassConfig : public TargetPassConfig {
58 public:
ARCPassConfig(ARCTargetMachine & TM,PassManagerBase & PM)59 ARCPassConfig(ARCTargetMachine &TM, PassManagerBase &PM)
60 : TargetPassConfig(TM, PM) {}
61
getARCTargetMachine() const62 ARCTargetMachine &getARCTargetMachine() const {
63 return getTM<ARCTargetMachine>();
64 }
65
66 bool addInstSelector() override;
67 void addPreEmitPass() override;
68 void addPreRegAlloc() override;
69 };
70
71 } // end anonymous namespace
72
createPassConfig(PassManagerBase & PM)73 TargetPassConfig *ARCTargetMachine::createPassConfig(PassManagerBase &PM) {
74 return new ARCPassConfig(*this, PM);
75 }
76
addInstSelector()77 bool ARCPassConfig::addInstSelector() {
78 addPass(createARCISelDag(getARCTargetMachine(), getOptLevel()));
79 return false;
80 }
81
addPreEmitPass()82 void ARCPassConfig::addPreEmitPass() { addPass(createARCBranchFinalizePass()); }
83
addPreRegAlloc()84 void ARCPassConfig::addPreRegAlloc() { addPass(createARCExpandPseudosPass()); }
85
86 // Force static initialization.
LLVMInitializeARCTarget()87 extern "C" void LLVMInitializeARCTarget() {
88 RegisterTargetMachine<ARCTargetMachine> X(getTheARCTarget());
89 }
90
91 TargetTransformInfo
getTargetTransformInfo(const Function & F)92 ARCTargetMachine::getTargetTransformInfo(const Function &F) {
93 return TargetTransformInfo(ARCTTIImpl(this, F));
94 }
95