contrib/llvm/lib/Target/XCore/XCoreTargetMachine.cpp

   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"
  19 using namespace llvm;
  20
  21 /// XCoreTargetMachine ctor - Create an ILP32 architecture model
  22 ///
  23 XCoreTargetMachine::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-p:32:32:32-a0:0:32-f32:32:32-f64:32:32-i1:8:32-i8:8:32-"
  31                "i16:16:32-i32:32:32-i64:32:32-n32"),
  32     InstrInfo(),
  33     FrameLowering(Subtarget),
  34     TLInfo(*this),
  35     TSInfo(*this) {
  36   initAsmInfo();
  37 }
  38
  39 namespace {
  40 /// XCore Code Generator Pass Configuration Options.
  41 class XCorePassConfig : public TargetPassConfig {
  42 public:
  43   XCorePassConfig(XCoreTargetMachine *TM, PassManagerBase &PM)
  44     : TargetPassConfig(TM, PM) {}
  45
  46   XCoreTargetMachine &getXCoreTargetMachine() const {
  47     return getTM<XCoreTargetMachine>();
  48   }
  49
  50   virtual bool addPreISel();
  51   virtual bool addInstSelector();
  52 };
  53 } // namespace
  54
  55 TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
  56   return new XCorePassConfig(this, PM);
  57 }
  58
  59 bool XCorePassConfig::addPreISel() {
  60   addPass(createXCoreLowerThreadLocalPass());
  61   return false;
  62 }
  63
  64 bool XCorePassConfig::addInstSelector() {
  65   addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
  66   return false;
  67 }
  68
  69 // Force static initialization.
  70 extern "C" void LLVMInitializeXCoreTarget() {
  71   RegisterTargetMachine<XCoreTargetMachine> X(TheXCoreTarget);
  72 }
  73
  74 void XCoreTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
  75   // Add first the target-independent BasicTTI pass, then our XCore pass. This
  76   // allows the XCore pass to delegate to the target independent layer when
  77   // appropriate.
  78   PM.add(createBasicTargetTransformInfoPass(this));
  79   PM.add(createXCoreTargetTransformInfoPass(this));
  80 }