XCoreTargetMachine.cpp revision 296417 
1//===-- XCoreTargetMachine.cpp - Define TargetMachine for XCore -----------===//
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 "XCoreTargetMachine.h"
14#include "XCoreTargetObjectFile.h"
15#include "XCoreTargetTransformInfo.h"
16#include "XCore.h"
17#include "llvm/CodeGen/Passes.h"
18#include "llvm/IR/Module.h"
19#include "llvm/IR/LegacyPassManager.h"
20#include "llvm/Support/TargetRegistry.h"
21using namespace llvm;
22
23/// XCoreTargetMachine ctor - Create an ILP32 architecture model
24///
25XCoreTargetMachine::XCoreTargetMachine(const Target &T, const Triple &TT,
26                                       StringRef CPU, StringRef FS,
27                                       const TargetOptions &Options,
28                                       Reloc::Model RM, CodeModel::Model CM,
29                                       CodeGenOpt::Level OL)
30    : LLVMTargetMachine(
31          T, "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32",
32          TT, CPU, FS, Options, RM, CM, OL),
33      TLOF(make_unique<XCoreTargetObjectFile>()),
34      Subtarget(TT, CPU, FS, *this) {
35  initAsmInfo();
36}
37
38XCoreTargetMachine::~XCoreTargetMachine() {}
39
40namespace {
41/// XCore Code Generator Pass Configuration Options.
42class XCorePassConfig : public TargetPassConfig {
43public:
44  XCorePassConfig(XCoreTargetMachine *TM, PassManagerBase &PM)
45    : TargetPassConfig(TM, PM) {}
46
47  XCoreTargetMachine &getXCoreTargetMachine() const {
48    return getTM<XCoreTargetMachine>();
49  }
50
51  void addIRPasses() override;
52  bool addPreISel() override;
53  bool addInstSelector() override;
54  void addPreEmitPass() override;
55};
56} // namespace
57
58TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
59  return new XCorePassConfig(this, PM);
60}
61
62void XCorePassConfig::addIRPasses() {
63  addPass(createAtomicExpandPass(&getXCoreTargetMachine()));
64
65  TargetPassConfig::addIRPasses();
66}
67
68bool XCorePassConfig::addPreISel() {
69  addPass(createXCoreLowerThreadLocalPass());
70  return false;
71}
72
73bool XCorePassConfig::addInstSelector() {
74  addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
75  return false;
76}
77
78void XCorePassConfig::addPreEmitPass() {
79  addPass(createXCoreFrameToArgsOffsetEliminationPass(), false);
80}
81
82// Force static initialization.
83extern "C" void LLVMInitializeXCoreTarget() {
84  RegisterTargetMachine<XCoreTargetMachine> X(TheXCoreTarget);
85}
86
87TargetIRAnalysis XCoreTargetMachine::getTargetIRAnalysis() {
88  return TargetIRAnalysis([this](const Function &F) {
89    return TargetTransformInfo(XCoreTTIImpl(this, F));
90  });
91}
92