1 //===-- SPUTargetMachine.cpp - Define TargetMachine for Cell SPU ----------===// 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 // Top-level implementation for the Cell SPU target. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "SPU.h" 15 #include "SPUTargetMachine.h" 16 #include "llvm/PassManager.h" 17 #include "llvm/CodeGen/RegAllocRegistry.h" 18 #include "llvm/CodeGen/SchedulerRegistry.h" 19 #include "llvm/Target/TargetRegistry.h" 20 21 using namespace llvm; 22 23 extern "C" void LLVMInitializeCellSPUTarget() { 24 // Register the target. 25 RegisterTargetMachine<SPUTargetMachine> X(TheCellSPUTarget); 26 } 27 28 const std::pair<unsigned, int> * 29 SPUFrameLowering::getCalleeSaveSpillSlots(unsigned &NumEntries) const { 30 NumEntries = 1; 31 return &LR[0]; 32 } 33 34 SPUTargetMachine::SPUTargetMachine(const Target &T, StringRef TT, 35 StringRef CPU,StringRef FS, Reloc::Model RM) 36 : LLVMTargetMachine(T, TT, CPU, FS, RM), 37 Subtarget(TT, CPU, FS), 38 DataLayout(Subtarget.getTargetDataString()), 39 InstrInfo(*this), 40 FrameLowering(Subtarget), 41 TLInfo(*this), 42 TSInfo(*this), 43 InstrItins(Subtarget.getInstrItineraryData()) { 44 } 45 46 //===----------------------------------------------------------------------===// 47 // Pass Pipeline Configuration 48 //===----------------------------------------------------------------------===// 49 50 bool SPUTargetMachine::addInstSelector(PassManagerBase &PM, 51 CodeGenOpt::Level OptLevel) { 52 // Install an instruction selector. 53 PM.add(createSPUISelDag(*this)); 54 return false; 55 } 56 57 // passes to run just before printing the assembly 58 bool SPUTargetMachine:: 59 addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel) 60 { 61 //align instructions with nops/lnops for dual issue 62 PM.add(createSPUNopFillerPass(*this)); 63 return true; 64 } 65
