XCoreTargetMachine.cpp revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338 
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 "XCore.h"
15#include "llvm/CodeGen/Passes.h"
16#include "llvm/IR/Module.h"
17#include "llvm/PassManager.h"
18#include "llvm/Support/TargetRegistry.h"
19using namespace llvm;
20
21/// XCoreTargetMachine ctor - Create an ILP32 architecture model
22///
23XCoreTargetMachine::XCoreTargetMachine(const Target &T, StringRef TT,
24                                       StringRef CPU, StringRef FS,
25                                       const TargetOptions &Options,
26                                       Reloc::Model RM, CodeModel::Model CM,
27                                       CodeGenOpt::Level OL)
28  : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
29    Subtarget(TT, CPU, FS),
30    DL("e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32"),
31    InstrInfo(),
32    FrameLowering(Subtarget),
33    TLInfo(*this),
34    TSInfo(*this) {
35  initAsmInfo();
36}
37
38namespace {
39/// XCore Code Generator Pass Configuration Options.
40class XCorePassConfig : public TargetPassConfig {
41public:
42  XCorePassConfig(XCoreTargetMachine *TM, PassManagerBase &PM)
43    : TargetPassConfig(TM, PM) {}
44
45  XCoreTargetMachine &getXCoreTargetMachine() const {
46    return getTM<XCoreTargetMachine>();
47  }
48
49  virtual bool addPreISel();
50  virtual bool addInstSelector();
51  virtual bool addPreEmitPass();
52};
53} // namespace
54
55TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
56  return new XCorePassConfig(this, PM);
57}
58
59bool XCorePassConfig::addPreISel() {
60  addPass(createXCoreLowerThreadLocalPass());
61  return false;
62}
63
64bool XCorePassConfig::addInstSelector() {
65  addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
66  return false;
67}
68
69bool XCorePassConfig::addPreEmitPass() {
70  addPass(createXCoreFrameToArgsOffsetEliminationPass());
71  return false;
72}
73
74// Force static initialization.
75extern "C" void LLVMInitializeXCoreTarget() {
76  RegisterTargetMachine<XCoreTargetMachine> X(TheXCoreTarget);
77}
78
79void XCoreTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
80  // Add first the target-independent BasicTTI pass, then our XCore pass. This
81  // allows the XCore pass to delegate to the target independent layer when
82  // appropriate.
83  PM.add(createBasicTargetTransformInfoPass(this));
84  PM.add(createXCoreTargetTransformInfoPass(this));
85}
86