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, *this) { 30 initAsmInfo(); 31 } 32 33 namespace { 34 /// XCore Code Generator Pass Configuration Options. 35 class XCorePassConfig : public TargetPassConfig { 36 public: 37 XCorePassConfig(XCoreTargetMachine *TM, PassManagerBase &PM) 38 : TargetPassConfig(TM, PM) {} 39 40 XCoreTargetMachine &getXCoreTargetMachine() const { 41 return getTM<XCoreTargetMachine>(); 42 } 43 44 bool addPreISel() override; 45 bool addInstSelector() override; 46 bool addPreEmitPass() override; 47 }; 48 } // namespace 49 50 TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) { 51 return new XCorePassConfig(this, PM); 52 } 53 54 bool XCorePassConfig::addPreISel() { 55 addPass(createXCoreLowerThreadLocalPass()); 56 return false; 57 } 58 59 bool XCorePassConfig::addInstSelector() { 60 addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel())); 61 return false; 62 } 63 64 bool XCorePassConfig::addPreEmitPass() { 65 addPass(createXCoreFrameToArgsOffsetEliminationPass()); 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 } 81
