1894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===-- SparcISelLowering.cpp - Sparc DAG Lowering Implementation ---------===// 2894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 3894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// The LLVM Compiler Infrastructure 4894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 5894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// This file is distributed under the University of Illinois Open Source 6894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// License. See LICENSE.TXT for details. 7894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 8894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 9894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 10894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// This file implements the interfaces that Sparc uses to lower LLVM code into a 11894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// selection DAG. 12894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 13894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 14894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 15894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "SparcISelLowering.h" 16894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "SparcTargetMachine.h" 17894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "SparcMachineFunctionInfo.h" 1819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/DerivedTypes.h" 19894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Function.h" 2019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/Module.h" 21894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/CodeGen/CallingConvLower.h" 22894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/CodeGen/MachineFrameInfo.h" 23894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/CodeGen/MachineFunction.h" 24894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/CodeGen/MachineInstrBuilder.h" 25894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/CodeGen/MachineRegisterInfo.h" 26894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/CodeGen/SelectionDAG.h" 27894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" 28894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/ADT/VectorExtras.h" 29894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/ErrorHandling.h" 30894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanusing namespace llvm; 31894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 32894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 33894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 34894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Calling Convention Implementation 35894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 36894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 3719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic bool CC_Sparc_Assign_SRet(unsigned &ValNo, MVT &ValVT, 3819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MVT &LocVT, CCValAssign::LocInfo &LocInfo, 3919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ISD::ArgFlagsTy &ArgFlags, CCState &State) 4019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman{ 4119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert (ArgFlags.isSRet()); 4219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 4319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Assign SRet argument 4419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman State.addLoc(CCValAssign::getCustomMem(ValNo, ValVT, 4519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 0, 4619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LocVT, LocInfo)); 4719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return true; 4819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 4919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 5019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic bool CC_Sparc_Assign_f64(unsigned &ValNo, MVT &ValVT, 5119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MVT &LocVT, CCValAssign::LocInfo &LocInfo, 5219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ISD::ArgFlagsTy &ArgFlags, CCState &State) 5319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman{ 5419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman static const unsigned RegList[] = { 5519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5 5619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman }; 5719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Try to get first reg 5819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (unsigned Reg = State.AllocateReg(RegList, 6)) { 5919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman State.addLoc(CCValAssign::getCustomReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 6019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } else { 6119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Assign whole thing in stack 6219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman State.addLoc(CCValAssign::getCustomMem(ValNo, ValVT, 6319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman State.AllocateStack(8,4), 6419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LocVT, LocInfo)); 6519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return true; 6619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 6719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 6819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Try to get second reg 6919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (unsigned Reg = State.AllocateReg(RegList, 6)) 7019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman State.addLoc(CCValAssign::getCustomReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 7119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else 7219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman State.addLoc(CCValAssign::getCustomMem(ValNo, ValVT, 7319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman State.AllocateStack(4,4), 7419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LocVT, LocInfo)); 7519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return true; 7619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 7719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 78894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "SparcGenCallingConv.inc" 79894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 80894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSDValue 81894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::LowerReturn(SDValue Chain, 82894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CallingConv::ID CallConv, bool isVarArg, 83894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SmallVectorImpl<ISD::OutputArg> &Outs, 84894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SmallVectorImpl<SDValue> &OutVals, 85894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl, SelectionDAG &DAG) const { 86894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 8719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachineFunction &MF = DAG.getMachineFunction(); 8819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 89894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // CCValAssign - represent the assignment of the return value to locations. 90894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<CCValAssign, 16> RVLocs; 91894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 92894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // CCState - Info about the registers and stack slot. 9319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 9419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getTarget(), RVLocs, *DAG.getContext()); 95894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 96894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Analize return values. 97894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CCInfo.AnalyzeReturn(Outs, RetCC_Sparc32); 98894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 99894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // If this is the first return lowered for this function, add the regs to the 100894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // liveout set for the function. 10119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (MF.getRegInfo().liveout_empty()) { 102894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0; i != RVLocs.size(); ++i) 103894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (RVLocs[i].isRegLoc()) 10419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MF.getRegInfo().addLiveOut(RVLocs[i].getLocReg()); 105894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 106894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 107894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Flag; 108894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 109894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Copy the result values into the output registers. 110894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0; i != RVLocs.size(); ++i) { 111894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CCValAssign &VA = RVLocs[i]; 112894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(VA.isRegLoc() && "Can only return in registers!"); 113894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 11419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Chain = DAG.getCopyToReg(Chain, dl, VA.getLocReg(), 115894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OutVals[i], Flag); 116894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 117894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Guarantee that all emitted copies are stuck together with flags. 118894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Flag = Chain.getValue(1); 119894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 120894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 12119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned RetAddrOffset = 8; //Call Inst + Delay Slot 12219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // If the function returns a struct, copy the SRetReturnReg to I0 12319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (MF.getFunction()->hasStructRetAttr()) { 12419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SparcMachineFunctionInfo *SFI = MF.getInfo<SparcMachineFunctionInfo>(); 12519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Reg = SFI->getSRetReturnReg(); 12619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!Reg) 12719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman llvm_unreachable("sret virtual register not created in the entry block"); 12819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Val = DAG.getCopyFromReg(Chain, dl, Reg, getPointerTy()); 12919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Chain = DAG.getCopyToReg(Chain, dl, SP::I0, Val, Flag); 13019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Flag = Chain.getValue(1); 13119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (MF.getRegInfo().liveout_empty()) 13219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MF.getRegInfo().addLiveOut(SP::I0); 13319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RetAddrOffset = 12; // CallInst + Delay Slot + Unimp 13419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 13519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 13619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue RetAddrOffsetNode = DAG.getConstant(RetAddrOffset, MVT::i32); 13719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 138894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Flag.getNode()) 13919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return DAG.getNode(SPISD::RET_FLAG, dl, MVT::Other, Chain, 14019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RetAddrOffsetNode, Flag); 14119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return DAG.getNode(SPISD::RET_FLAG, dl, MVT::Other, Chain, 14219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RetAddrOffsetNode); 143894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 144894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 145894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// LowerFormalArguments - V8 uses a very simple ABI, where all values are 146894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// passed in either one or two GPRs, including FP values. TODO: we should 147894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// pass FP values in FP registers for fastcc functions. 148894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSDValue 149894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::LowerFormalArguments(SDValue Chain, 150894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CallingConv::ID CallConv, bool isVarArg, 151894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SmallVectorImpl<ISD::InputArg> 152894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Ins, 153894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl, SelectionDAG &DAG, 154894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVectorImpl<SDValue> &InVals) 155894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const { 156894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 157894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineFunction &MF = DAG.getMachineFunction(); 158894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineRegisterInfo &RegInfo = MF.getRegInfo(); 159894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>(); 160894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 161894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Assign locations to all of the incoming arguments. 162894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<CCValAssign, 16> ArgLocs; 16319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 16419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getTargetMachine(), ArgLocs, *DAG.getContext()); 165894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CCInfo.AnalyzeFormalArguments(Ins, CC_Sparc32); 166894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 16719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const unsigned StackOffset = 92; 168894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 169894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { 170894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CCValAssign &VA = ArgLocs[i]; 171894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 17219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (i == 0 && Ins[i].Flags.isSRet()) { 17319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Get SRet from [%fp+64] 17419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, 64, true); 17519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 17619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Arg = DAG.getLoad(MVT::i32, dl, Chain, FIPtr, 17719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 17819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0); 17919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman InVals.push_back(Arg); 18019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 18119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 182894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 18319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.isRegLoc()) { 18419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.needsCustom()) { 18519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VA.getLocVT() == MVT::f64); 18619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned VRegHi = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 18719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MF.getRegInfo().addLiveIn(VA.getLocReg(), VRegHi); 18819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue HiVal = DAG.getCopyFromReg(Chain, dl, VRegHi, MVT::i32); 18919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 19019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(i+1 < e); 19119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CCValAssign &NextVA = ArgLocs[++i]; 192894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 193894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue LoVal; 19419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (NextVA.isMemLoc()) { 19519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int FrameIdx = MF.getFrameInfo()-> 19619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CreateFixedObject(4, StackOffset+NextVA.getLocMemOffset(),true); 197894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 19819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LoVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr, 19919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 200894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman false, false, 0); 20119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } else { 20219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned loReg = MF.addLiveIn(NextVA.getLocReg(), 20319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman &SP::IntRegsRegClass); 20419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LoVal = DAG.getCopyFromReg(Chain, dl, loReg, MVT::i32); 205894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 206894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue WholeValue = 207894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i64, LoVal, HiVal); 20819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman WholeValue = DAG.getNode(ISD::BITCAST, dl, MVT::f64, WholeValue); 20919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman InVals.push_back(WholeValue); 21019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 21119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 21219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 21319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MF.getRegInfo().addLiveIn(VA.getLocReg(), VReg); 21419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Arg = DAG.getCopyFromReg(Chain, dl, VReg, MVT::i32); 21519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.getLocVT() == MVT::f32) 21619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::BITCAST, dl, MVT::f32, Arg); 21719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else if (VA.getLocVT() != MVT::i32) { 21819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::AssertSext, dl, MVT::i32, Arg, 21919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getValueType(VA.getLocVT())); 22019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::TRUNCATE, dl, VA.getLocVT(), Arg); 22119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 22219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman InVals.push_back(Arg); 22319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 22419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 225894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 22619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VA.isMemLoc()); 227894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 22819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Offset = VA.getLocMemOffset()+StackOffset; 22919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 23019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.needsCustom()) { 23119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VA.getValVT() == MVT::f64); 23219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //If it is double-word aligned, just load. 23319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Offset % 8 == 0) { 23419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int FI = MF.getFrameInfo()->CreateFixedObject(8, 23519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Offset, 23619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman true); 23719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy()); 23819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Load = DAG.getLoad(VA.getValVT(), dl, Chain, FIPtr, 23919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 24019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false,false, 0); 24119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman InVals.push_back(Load); 24219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 243894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 24419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 24519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int FI = MF.getFrameInfo()->CreateFixedObject(4, 24619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Offset, 24719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman true); 24819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy()); 24919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue HiVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr, 25019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 25119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0); 25219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int FI2 = MF.getFrameInfo()->CreateFixedObject(4, 25319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Offset+4, 25419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman true); 25519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue FIPtr2 = DAG.getFrameIndex(FI2, getPointerTy()); 25619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 25719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue LoVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr2, 25819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 25919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0); 26019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 26119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue WholeValue = 26219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i64, LoVal, HiVal); 26319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman WholeValue = DAG.getNode(ISD::BITCAST, dl, MVT::f64, WholeValue); 26419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman InVals.push_back(WholeValue); 26519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 26619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 26719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 26819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int FI = MF.getFrameInfo()->CreateFixedObject(4, 26919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Offset, 27019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman true); 27119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy()); 27219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Load ; 27319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.getValVT() == MVT::i32 || VA.getValVT() == MVT::f32) { 27419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Load = DAG.getLoad(VA.getValVT(), dl, Chain, FIPtr, 27519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 27619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0); 27719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } else { 27819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ISD::LoadExtType LoadOp = ISD::SEXTLOAD; 27919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Sparc is big endian, so add an offset based on the ObjectVT. 28019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Offset = 4-std::max(1U, VA.getValVT().getSizeInBits()/8); 28119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FIPtr = DAG.getNode(ISD::ADD, dl, MVT::i32, FIPtr, 28219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getConstant(Offset, MVT::i32)); 28319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Load = DAG.getExtLoad(LoadOp, dl, MVT::i32, Chain, FIPtr, 28419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 28519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VA.getValVT(), false, false,0); 28619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Load = DAG.getNode(ISD::TRUNCATE, dl, VA.getValVT(), Load); 287894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 28819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman InVals.push_back(Load); 28919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 29019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 29119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (MF.getFunction()->hasStructRetAttr()) { 29219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Copy the SRet Argument to SRetReturnReg 29319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SparcMachineFunctionInfo *SFI = MF.getInfo<SparcMachineFunctionInfo>(); 29419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Reg = SFI->getSRetReturnReg(); 29519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!Reg) { 29619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Reg = MF.getRegInfo().createVirtualRegister(&SP::IntRegsRegClass); 29719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SFI->setSRetReturnReg(Reg); 29819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 29919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Copy = DAG.getCopyToReg(DAG.getEntryNode(), dl, Reg, InVals[0]); 30019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Copy, Chain); 301894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 302894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 303894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Store remaining ArgRegs to the stack if this is a varargs function. 304894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isVarArg) { 30519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman static const unsigned ArgRegs[] = { 30619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5 30719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman }; 30819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned NumAllocated = CCInfo.getFirstUnallocated(ArgRegs, 6); 30919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const unsigned *CurArgReg = ArgRegs+NumAllocated, *ArgRegEnd = ArgRegs+6; 31019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned ArgOffset = CCInfo.getNextStackOffset(); 31119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (NumAllocated == 6) 31219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArgOffset += StackOffset; 31319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else { 31419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(!ArgOffset); 31519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArgOffset = 68+4*NumAllocated; 31619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 31719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 318894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Remember the vararg offset for the va_start implementation. 319894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman FuncInfo->setVarArgsFrameOffset(ArgOffset); 320894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 321894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<SDValue> OutChains; 322894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 323894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (; CurArgReg != ArgRegEnd; ++CurArgReg) { 324894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 325894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MF.getRegInfo().addLiveIn(*CurArgReg, VReg); 326894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Arg = DAG.getCopyFromReg(DAG.getRoot(), dl, VReg, MVT::i32); 327894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 328894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset, 329894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman true); 330894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 331894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 33219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman OutChains.push_back(DAG.getStore(DAG.getRoot(), dl, Arg, FIPtr, 33319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 334894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman false, false, 0)); 335894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgOffset += 4; 336894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 337894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 338894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!OutChains.empty()) { 339894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OutChains.push_back(Chain); 340894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, 341894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &OutChains[0], OutChains.size()); 342894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 343894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 344894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 345894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Chain; 346894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 347894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 348894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSDValue 349894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::LowerCall(SDValue Chain, SDValue Callee, 350894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CallingConv::ID CallConv, bool isVarArg, 351894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool &isTailCall, 352894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SmallVectorImpl<ISD::OutputArg> &Outs, 353894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SmallVectorImpl<SDValue> &OutVals, 354894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SmallVectorImpl<ISD::InputArg> &Ins, 355894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl, SelectionDAG &DAG, 356894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVectorImpl<SDValue> &InVals) const { 357894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Sparc target does not yet support tail call optimization. 358894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isTailCall = false; 359894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 360894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Analyze operands of the call, assigning locations to each operand. 361894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<CCValAssign, 16> ArgLocs; 36219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 36319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getTarget(), ArgLocs, *DAG.getContext()); 364894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CCInfo.AnalyzeCallOperands(Outs, CC_Sparc32); 365894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 366894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Get the size of the outgoing arguments stack space requirement. 367894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned ArgsSize = CCInfo.getNextStackOffset(); 368894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 369894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Keep stack frames 8-byte aligned. 370894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgsSize = (ArgsSize+7) & ~7; 371894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 37219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo(); 37319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 37419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Create local copies for byval args. 37519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<SDValue, 8> ByValArgs; 37619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0, e = Outs.size(); i != e; ++i) { 37719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ISD::ArgFlagsTy Flags = Outs[i].Flags; 37819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!Flags.isByVal()) 37919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 38019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 38119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Arg = OutVals[i]; 38219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Size = Flags.getByValSize(); 38319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Align = Flags.getByValAlign(); 38419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 38519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int FI = MFI->CreateStackObject(Size, Align, false); 38619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue FIPtr = DAG.getFrameIndex(FI, getPointerTy()); 38719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue SizeNode = DAG.getConstant(Size, MVT::i32); 38819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 38919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Chain = DAG.getMemcpy(Chain, dl, FIPtr, Arg, SizeNode, Align, 39019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, //isVolatile, 39119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (Size <= 32), //AlwaysInline if size <= 32 39219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), MachinePointerInfo()); 39319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ByValArgs.push_back(FIPtr); 39419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 39519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 396894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, true)); 397894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 398894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass; 399894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<SDValue, 8> MemOpChains; 400894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 40119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const unsigned StackOffset = 92; 40219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool hasStructRetAttr = false; 403894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Walk the register/memloc assignments, inserting copies/loads. 40419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0, realArgIdx = 0, byvalArgIdx = 0, e = ArgLocs.size(); 40519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman i != e; 40619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ++i, ++realArgIdx) { 407894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CCValAssign &VA = ArgLocs[i]; 40819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Arg = OutVals[realArgIdx]; 40919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 41019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ISD::ArgFlagsTy Flags = Outs[realArgIdx].Flags; 41119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 41219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Use local copy if it is a byval arg. 41319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Flags.isByVal()) 41419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = ByValArgs[byvalArgIdx++]; 415894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 416894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Promote the value if needed. 417894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (VA.getLocInfo()) { 418894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: llvm_unreachable("Unknown loc info!"); 419894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case CCValAssign::Full: break; 420894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case CCValAssign::SExt: 42119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::SIGN_EXTEND, dl, VA.getLocVT(), Arg); 422894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 423894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case CCValAssign::ZExt: 42419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::ZERO_EXTEND, dl, VA.getLocVT(), Arg); 425894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 426894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case CCValAssign::AExt: 42719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::ANY_EXTEND, dl, VA.getLocVT(), Arg); 42819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman break; 42919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CCValAssign::BCvt: 43019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::BITCAST, dl, VA.getLocVT(), Arg); 431894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 432894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 433894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 43419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Flags.isSRet()) { 43519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VA.needsCustom()); 43619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // store SRet argument in %sp+64 43719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 43819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue PtrOff = DAG.getIntPtrConstant(64); 43919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 44019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff, 44119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 44219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0)); 44319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman hasStructRetAttr = true; 444894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman continue; 445894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 446894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 44719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.needsCustom()) { 44819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VA.getLocVT() == MVT::f64); 44919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 45019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.isMemLoc()) { 45119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Offset = VA.getLocMemOffset() + StackOffset; 45219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //if it is double-word aligned, just store. 45319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Offset % 8 == 0) { 45419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 45519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue PtrOff = DAG.getIntPtrConstant(Offset); 45619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 45719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff, 45819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 45919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0)); 46019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 46119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 462894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 463894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 464894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue StackPtr = DAG.CreateStackTemporary(MVT::f64, MVT::i32); 46519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Store = DAG.getStore(DAG.getEntryNode(), dl, 46619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg, StackPtr, MachinePointerInfo(), 467894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman false, false, 0); 468894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Sparc is big-endian, so the high part comes first. 46919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Hi = DAG.getLoad(MVT::i32, dl, Store, StackPtr, 47019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), false, false, 0); 471894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Increment the pointer to the other half. 472894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman StackPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), StackPtr, 473894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getIntPtrConstant(4)); 474894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Load the low part. 47519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Lo = DAG.getLoad(MVT::i32, dl, Store, StackPtr, 47619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), false, false, 0); 47719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 47819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.isRegLoc()) { 47919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RegsToPass.push_back(std::make_pair(VA.getLocReg(), Hi)); 48019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(i+1 != e); 48119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CCValAssign &NextVA = ArgLocs[++i]; 48219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (NextVA.isRegLoc()) { 48319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RegsToPass.push_back(std::make_pair(NextVA.getLocReg(), Lo)); 48419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } else { 48519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman //Store the low part in stack. 48619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Offset = NextVA.getLocMemOffset() + StackOffset; 48719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 48819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue PtrOff = DAG.getIntPtrConstant(Offset); 48919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 49019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MemOpChains.push_back(DAG.getStore(Chain, dl, Lo, PtrOff, 49119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 49219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0)); 49319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 494894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 49519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Offset = VA.getLocMemOffset() + StackOffset; 49619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Store the high part. 49719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 49819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue PtrOff = DAG.getIntPtrConstant(Offset); 49919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 50019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MemOpChains.push_back(DAG.getStore(Chain, dl, Hi, PtrOff, 50119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 50219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0)); 50319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Store the low part. 50419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PtrOff = DAG.getIntPtrConstant(Offset+4); 50519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 50619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MemOpChains.push_back(DAG.getStore(Chain, dl, Lo, PtrOff, 50719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 50819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0)); 509894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 51019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 511894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 512894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 51319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Arguments that can be passed on register must be kept at 51419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // RegsToPass vector 51519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.isRegLoc()) { 51619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VA.getLocVT() != MVT::f32) { 51719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg)); 51819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 519894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 52019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Arg = DAG.getNode(ISD::BITCAST, dl, MVT::i32, Arg); 52119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg)); 52219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 523894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 524894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 52519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VA.isMemLoc()); 52619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 52719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Create a store off the stack pointer for this argument. 52819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 52919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue PtrOff = DAG.getIntPtrConstant(VA.getLocMemOffset()+StackOffset); 53019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 53119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff, 53219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), 53319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0)); 534894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 53519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 536894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 537894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Emit all stores, make sure the occur before any copies into physregs. 538894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!MemOpChains.empty()) 539894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, 540894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &MemOpChains[0], MemOpChains.size()); 541894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 542894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Build a sequence of copy-to-reg nodes chained together with token 543894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // chain and flag operands which copy the outgoing args into registers. 54419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // The InFlag in necessary since all emitted instructions must be 545894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // stuck together. 546894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue InFlag; 547894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 548894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned Reg = RegsToPass[i].first; 549894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Remap I0->I7 -> O0->O7. 550894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Reg >= SP::I0 && Reg <= SP::I7) 551894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Reg = Reg-SP::I0+SP::O0; 552894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 553894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Chain = DAG.getCopyToReg(Chain, dl, Reg, RegsToPass[i].second, InFlag); 554894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman InFlag = Chain.getValue(1); 555894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 556894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 55719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned SRetArgSize = (hasStructRetAttr)? getSRetArgSize(DAG, Callee):0; 55819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 559894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // If the callee is a GlobalAddress node (quite common, every direct call is) 560894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // turn it into a TargetGlobalAddress node so that legalize doesn't hack it. 561894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Likewise ExternalSymbol -> TargetExternalSymbol. 562894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) 563894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl, MVT::i32); 564894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else if (ExternalSymbolSDNode *E = dyn_cast<ExternalSymbolSDNode>(Callee)) 565894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Callee = DAG.getTargetExternalSymbol(E->getSymbol(), MVT::i32); 566894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 56719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Returns a chain & a flag for retval copy to use 56819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue); 56919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<SDValue, 8> Ops; 57019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Ops.push_back(Chain); 57119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Ops.push_back(Callee); 57219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (hasStructRetAttr) 57319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Ops.push_back(DAG.getTargetConstant(SRetArgSize, MVT::i32)); 57419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 57519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Reg = RegsToPass[i].first; 57619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Reg >= SP::I0 && Reg <= SP::I7) 57719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Reg = Reg-SP::I0+SP::O0; 57819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 57919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Ops.push_back(DAG.getRegister(Reg, RegsToPass[i].second.getValueType())); 58019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 58119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (InFlag.getNode()) 58219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Ops.push_back(InFlag); 58319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 58419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Chain = DAG.getNode(SPISD::CALL, dl, NodeTys, &Ops[0], Ops.size()); 585894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman InFlag = Chain.getValue(1); 586894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 587894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(ArgsSize, true), 588894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getIntPtrConstant(0, true), InFlag); 589894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman InFlag = Chain.getValue(1); 590894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 591894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Assign locations to each value returned by this call. 592894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<CCValAssign, 16> RVLocs; 59319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CCState RVInfo(CallConv, isVarArg, DAG.getMachineFunction(), 59419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getTarget(), RVLocs, *DAG.getContext()); 595894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 596894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman RVInfo.AnalyzeCallResult(Ins, RetCC_Sparc32); 597894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 598894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Copy all of the result registers out of their specified physreg. 599894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0; i != RVLocs.size(); ++i) { 600894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned Reg = RVLocs[i].getLocReg(); 601894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 602894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Remap I0->I7 -> O0->O7. 603894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Reg >= SP::I0 && Reg <= SP::I7) 604894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Reg = Reg-SP::I0+SP::O0; 605894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 606894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Chain = DAG.getCopyFromReg(Chain, dl, Reg, 607894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman RVLocs[i].getValVT(), InFlag).getValue(1); 608894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman InFlag = Chain.getValue(2); 609894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman InVals.push_back(Chain.getValue(0)); 610894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 611894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 612894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Chain; 613894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 614894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 61519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanunsigned 61619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanSparcTargetLowering::getSRetArgSize(SelectionDAG &DAG, SDValue Callee) const 61719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman{ 61819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const Function *CalleeFn = 0; 61919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) { 62019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CalleeFn = dyn_cast<Function>(G->getGlobal()); 62119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } else if (ExternalSymbolSDNode *E = 62219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman dyn_cast<ExternalSymbolSDNode>(Callee)) { 62319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const Function *Fn = DAG.getMachineFunction().getFunction(); 62419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const Module *M = Fn->getParent(); 62519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CalleeFn = M->getFunction(E->getSymbol()); 62619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 62719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 62819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!CalleeFn) 62919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return 0; 630894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 63119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(CalleeFn->hasStructRetAttr() && 63219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "Callee does not have the StructRet attribute."); 63319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 63419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PointerType *Ty = cast<PointerType>(CalleeFn->arg_begin()->getType()); 63519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ElementTy = Ty->getElementType(); 63619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return getTargetData()->getTypeAllocSize(ElementTy); 63719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 638894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 639894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 640894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// TargetLowering Implementation 641894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 642894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 643894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// IntCondCCodeToICC - Convert a DAG integer condition code to a SPARC ICC 644894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// condition. 645894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SPCC::CondCodes IntCondCCodeToICC(ISD::CondCode CC) { 646894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (CC) { 647894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: llvm_unreachable("Unknown integer condition code!"); 648894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETEQ: return SPCC::ICC_E; 649894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETNE: return SPCC::ICC_NE; 650894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETLT: return SPCC::ICC_L; 651894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETGT: return SPCC::ICC_G; 652894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETLE: return SPCC::ICC_LE; 653894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETGE: return SPCC::ICC_GE; 654894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETULT: return SPCC::ICC_CS; 655894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETULE: return SPCC::ICC_LEU; 656894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETUGT: return SPCC::ICC_GU; 657894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETUGE: return SPCC::ICC_CC; 658894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 659894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 660894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 661894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// FPCondCCodeToFCC - Convert a DAG floatingp oint condition code to a SPARC 662894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// FCC condition. 663894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SPCC::CondCodes FPCondCCodeToFCC(ISD::CondCode CC) { 664894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (CC) { 665894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: llvm_unreachable("Unknown fp condition code!"); 666894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETEQ: 667894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETOEQ: return SPCC::FCC_E; 668894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETNE: 669894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETUNE: return SPCC::FCC_NE; 670894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETLT: 671894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETOLT: return SPCC::FCC_L; 672894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETGT: 673894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETOGT: return SPCC::FCC_G; 674894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETLE: 675894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETOLE: return SPCC::FCC_LE; 676894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETGE: 677894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETOGE: return SPCC::FCC_GE; 678894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETULT: return SPCC::FCC_UL; 679894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETULE: return SPCC::FCC_ULE; 680894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETUGT: return SPCC::FCC_UG; 681894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETUGE: return SPCC::FCC_UGE; 682894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETUO: return SPCC::FCC_U; 683894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETO: return SPCC::FCC_O; 684894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETONE: return SPCC::FCC_LG; 685894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SETUEQ: return SPCC::FCC_UE; 686894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 687894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 688894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 689894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::SparcTargetLowering(TargetMachine &TM) 690894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman : TargetLowering(TM, new TargetLoweringObjectFileELF()) { 691894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 692894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Set up the register classes. 693894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman addRegisterClass(MVT::i32, SP::IntRegsRegisterClass); 694894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman addRegisterClass(MVT::f32, SP::FPRegsRegisterClass); 695894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman addRegisterClass(MVT::f64, SP::DFPRegsRegisterClass); 696894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 697894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Turn FP extload into load/fextend 698894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand); 699894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Sparc doesn't have i1 sign extending load 700894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setLoadExtAction(ISD::SEXTLOAD, MVT::i1, Promote); 701894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Turn FP truncstore into trunc + store. 702894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setTruncStoreAction(MVT::f64, MVT::f32, Expand); 703894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 704894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Custom legalize GlobalAddress nodes into LO/HI parts. 705894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::GlobalAddress, MVT::i32, Custom); 706894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::GlobalTLSAddress, MVT::i32, Custom); 707894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::ConstantPool , MVT::i32, Custom); 708894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 709894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Sparc doesn't have sext_inreg, replace them with shl/sra 710894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand); 711894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8 , Expand); 712894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1 , Expand); 713894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 714894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Sparc has no REM or DIVREM operations. 715894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::UREM, MVT::i32, Expand); 716894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SREM, MVT::i32, Expand); 717894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SDIVREM, MVT::i32, Expand); 718894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::UDIVREM, MVT::i32, Expand); 719894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 720894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Custom expand fp<->sint 721894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom); 722894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom); 723894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 724894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Expand fp<->uint 725894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand); 726894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand); 727894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 72819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman setOperationAction(ISD::BITCAST, MVT::f32, Expand); 72919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman setOperationAction(ISD::BITCAST, MVT::i32, Expand); 730894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 731894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Sparc has no select or setcc: expand to SELECT_CC. 732894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SELECT, MVT::i32, Expand); 733894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SELECT, MVT::f32, Expand); 734894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SELECT, MVT::f64, Expand); 735894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SETCC, MVT::i32, Expand); 736894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SETCC, MVT::f32, Expand); 737894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SETCC, MVT::f64, Expand); 738894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 739894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Sparc doesn't have BRCOND either, it has BR_CC. 740894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::BRCOND, MVT::Other, Expand); 741894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::BRIND, MVT::Other, Expand); 742894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::BR_JT, MVT::Other, Expand); 743894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::BR_CC, MVT::i32, Custom); 744894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::BR_CC, MVT::f32, Custom); 745894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::BR_CC, MVT::f64, Custom); 746894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 747894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SELECT_CC, MVT::i32, Custom); 748894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SELECT_CC, MVT::f32, Custom); 749894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SELECT_CC, MVT::f64, Custom); 750894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 75119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // FIXME: There are instructions available for ATOMIC_FENCE 75219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // on SparcV8 and later. 753894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand); 75419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Expand); 755894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 756894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FSIN , MVT::f64, Expand); 757894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FCOS , MVT::f64, Expand); 758894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FREM , MVT::f64, Expand); 75919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman setOperationAction(ISD::FMA , MVT::f64, Expand); 760894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FSIN , MVT::f32, Expand); 761894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FCOS , MVT::f32, Expand); 762894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FREM , MVT::f32, Expand); 76319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman setOperationAction(ISD::FMA , MVT::f32, Expand); 764894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::CTPOP, MVT::i32, Expand); 765894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::CTTZ , MVT::i32, Expand); 766894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::CTLZ , MVT::i32, Expand); 767894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::ROTL , MVT::i32, Expand); 768894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::ROTR , MVT::i32, Expand); 769894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::BSWAP, MVT::i32, Expand); 770894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand); 771894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand); 772894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FPOW , MVT::f64, Expand); 773894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::FPOW , MVT::f32, Expand); 774894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 775894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SHL_PARTS, MVT::i32, Expand); 776894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SRA_PARTS, MVT::i32, Expand); 777894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SRL_PARTS, MVT::i32, Expand); 778894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 779894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // FIXME: Sparc provides these multiplies, but we don't have them yet. 780894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand); 781894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand); 782894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 783894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::EH_LABEL, MVT::Other, Expand); 784894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 785894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // VASTART needs to be custom lowered to use the VarArgsFrameIndex. 786894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::VASTART , MVT::Other, Custom); 787894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // VAARG needs to be lowered to not do unaligned accesses for doubles. 788894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::VAARG , MVT::Other, Custom); 789894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 790894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Use the default implementation. 791894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::VACOPY , MVT::Other, Expand); 792894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::VAEND , MVT::Other, Expand); 793894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::STACKSAVE , MVT::Other, Expand); 794894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::STACKRESTORE , MVT::Other, Expand); 795894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Custom); 796894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 797894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // No debug info support yet. 798894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::EH_LABEL, MVT::Other, Expand); 799894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 800894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setStackPointerRegisterToSaveRestore(SP::O6); 801894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 802894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (TM.getSubtarget<SparcSubtarget>().isV9()) 803894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperationAction(ISD::CTPOP, MVT::i32, Legal); 804894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 80519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman setMinFunctionAlignment(2); 80619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 807894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman computeRegisterProperties(); 808894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 809894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 810894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanconst char *SparcTargetLowering::getTargetNodeName(unsigned Opcode) const { 811894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Opcode) { 812894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: return 0; 813894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::CMPICC: return "SPISD::CMPICC"; 814894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::CMPFCC: return "SPISD::CMPFCC"; 815894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::BRICC: return "SPISD::BRICC"; 816894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::BRFCC: return "SPISD::BRFCC"; 817894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::SELECT_ICC: return "SPISD::SELECT_ICC"; 818894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::SELECT_FCC: return "SPISD::SELECT_FCC"; 819894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::Hi: return "SPISD::Hi"; 820894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::Lo: return "SPISD::Lo"; 821894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::FTOI: return "SPISD::FTOI"; 822894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::ITOF: return "SPISD::ITOF"; 823894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::CALL: return "SPISD::CALL"; 824894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::RET_FLAG: return "SPISD::RET_FLAG"; 82519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case SPISD::GLOBAL_BASE_REG: return "SPISD::GLOBAL_BASE_REG"; 82619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case SPISD::FLUSHW: return "SPISD::FLUSHW"; 827894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 828894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 829894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 830894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to 831894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// be zero. Op is expected to be a target specific node. Used by DAG 832894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// combiner. 833894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid SparcTargetLowering::computeMaskedBitsForTargetNode(const SDValue Op, 834894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const APInt &Mask, 835894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APInt &KnownZero, 836894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APInt &KnownOne, 837894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SelectionDAG &DAG, 838894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned Depth) const { 839894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APInt KnownZero2, KnownOne2; 840894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman KnownZero = KnownOne = APInt(Mask.getBitWidth(), 0); // Don't know anything. 841894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 842894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Op.getOpcode()) { 843894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: break; 844894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::SELECT_ICC: 845894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SPISD::SELECT_FCC: 846894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.ComputeMaskedBits(Op.getOperand(1), Mask, KnownZero, KnownOne, 847894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Depth+1); 848894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.ComputeMaskedBits(Op.getOperand(0), Mask, KnownZero2, KnownOne2, 849894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Depth+1); 850894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?"); 851894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?"); 852894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 853894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Only known if known in both the LHS and RHS. 854894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman KnownOne &= KnownOne2; 855894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman KnownZero &= KnownZero2; 856894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 857894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 858894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 859894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 860894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Look at LHS/RHS/CC and see if they are a lowered setcc instruction. If so 861894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// set LHS/RHS and SPCC to the LHS/RHS of the setcc and SPCC to the condition. 862894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic void LookThroughSetCC(SDValue &LHS, SDValue &RHS, 863894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ISD::CondCode CC, unsigned &SPCC) { 864894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isa<ConstantSDNode>(RHS) && 865894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman cast<ConstantSDNode>(RHS)->isNullValue() && 866894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CC == ISD::SETNE && 867894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ((LHS.getOpcode() == SPISD::SELECT_ICC && 868894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LHS.getOperand(3).getOpcode() == SPISD::CMPICC) || 869894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman (LHS.getOpcode() == SPISD::SELECT_FCC && 870894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LHS.getOperand(3).getOpcode() == SPISD::CMPFCC)) && 871894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isa<ConstantSDNode>(LHS.getOperand(0)) && 872894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isa<ConstantSDNode>(LHS.getOperand(1)) && 873894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman cast<ConstantSDNode>(LHS.getOperand(0))->isOne() && 874894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman cast<ConstantSDNode>(LHS.getOperand(1))->isNullValue()) { 875894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue CMPCC = LHS.getOperand(3); 876894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SPCC = cast<ConstantSDNode>(LHS.getOperand(2))->getZExtValue(); 877894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LHS = CMPCC.getOperand(0); 878894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman RHS = CMPCC.getOperand(1); 879894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 880894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 881894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 88219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanSDValue SparcTargetLowering::LowerGlobalAddress(SDValue Op, 883894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SelectionDAG &DAG) const { 884894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); 885894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // FIXME there isn't really any debug info here 886894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 887894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue GA = DAG.getTargetGlobalAddress(GV, dl, MVT::i32); 888894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Hi = DAG.getNode(SPISD::Hi, dl, MVT::i32, GA); 889894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Lo = DAG.getNode(SPISD::Lo, dl, MVT::i32, GA); 890894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 89119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (getTargetMachine().getRelocationModel() != Reloc::PIC_) 892894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 89319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 894894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue GlobalBase = DAG.getNode(SPISD::GLOBAL_BASE_REG, dl, 895894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getPointerTy()); 896894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue RelAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 89719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue AbsAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, 898894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman GlobalBase, RelAddr); 89919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(), 90019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman AbsAddr, MachinePointerInfo(), false, false, 0); 901894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 902894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 903894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSDValue SparcTargetLowering::LowerConstantPool(SDValue Op, 904894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SelectionDAG &DAG) const { 905894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantPoolSDNode *N = cast<ConstantPoolSDNode>(Op); 906894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // FIXME there isn't really any debug info here 907894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 908894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const Constant *C = N->getConstVal(); 909894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue CP = DAG.getTargetConstantPool(C, MVT::i32, N->getAlignment()); 910894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Hi = DAG.getNode(SPISD::Hi, dl, MVT::i32, CP); 911894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Lo = DAG.getNode(SPISD::Lo, dl, MVT::i32, CP); 91219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (getTargetMachine().getRelocationModel() != Reloc::PIC_) 913894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 914894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 91519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue GlobalBase = DAG.getNode(SPISD::GLOBAL_BASE_REG, dl, 916894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getPointerTy()); 917894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue RelAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 918894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue AbsAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, 919894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman GlobalBase, RelAddr); 92019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(), 92119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman AbsAddr, MachinePointerInfo(), false, false, 0); 922894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 923894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 924894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SDValue LowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) { 925894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 926894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Convert the fp value to integer in an FP register. 927894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Op.getValueType() == MVT::i32); 928894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op = DAG.getNode(SPISD::FTOI, dl, MVT::f32, Op.getOperand(0)); 92919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return DAG.getNode(ISD::BITCAST, dl, MVT::i32, Op); 930894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 931894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 932894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG) { 933894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 934894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Op.getOperand(0).getValueType() == MVT::i32); 93519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Tmp = DAG.getNode(ISD::BITCAST, dl, MVT::f32, Op.getOperand(0)); 936894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Convert the int value to FP in an FP register. 937894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return DAG.getNode(SPISD::ITOF, dl, Op.getValueType(), Tmp); 938894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 939894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 940894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) { 941894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Chain = Op.getOperand(0); 942894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get(); 943894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue LHS = Op.getOperand(2); 944894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue RHS = Op.getOperand(3); 945894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Dest = Op.getOperand(4); 946894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 947894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned Opc, SPCC = ~0U; 948894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 949894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // If this is a br_cc of a "setcc", and if the setcc got lowered into 950894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values. 951894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LookThroughSetCC(LHS, RHS, CC, SPCC); 952894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 953894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Get the condition flag. 954894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue CompareFlag; 955894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (LHS.getValueType() == MVT::i32) { 956894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<EVT> VTs; 957894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman VTs.push_back(MVT::i32); 95819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VTs.push_back(MVT::Glue); 959894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Ops[2] = { LHS, RHS }; 960894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CompareFlag = DAG.getNode(SPISD::CMPICC, dl, VTs, Ops, 2).getValue(1); 961894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC); 962894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Opc = SPISD::BRICC; 963894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 96419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CompareFlag = DAG.getNode(SPISD::CMPFCC, dl, MVT::Glue, LHS, RHS); 965894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC); 966894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Opc = SPISD::BRFCC; 967894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 968894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return DAG.getNode(Opc, dl, MVT::Other, Chain, Dest, 969894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getConstant(SPCC, MVT::i32), CompareFlag); 970894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 971894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 972894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) { 973894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue LHS = Op.getOperand(0); 974894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue RHS = Op.getOperand(1); 975894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(4))->get(); 976894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue TrueVal = Op.getOperand(2); 977894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue FalseVal = Op.getOperand(3); 978894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 979894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned Opc, SPCC = ~0U; 980894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 981894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // If this is a select_cc of a "setcc", and if the setcc got lowered into 982894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values. 983894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LookThroughSetCC(LHS, RHS, CC, SPCC); 984894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 985894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue CompareFlag; 986894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (LHS.getValueType() == MVT::i32) { 987894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<EVT> VTs; 988894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman VTs.push_back(LHS.getValueType()); // subcc returns a value 98919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VTs.push_back(MVT::Glue); 990894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Ops[2] = { LHS, RHS }; 991894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CompareFlag = DAG.getNode(SPISD::CMPICC, dl, VTs, Ops, 2).getValue(1); 992894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Opc = SPISD::SELECT_ICC; 993894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC); 994894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 99519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CompareFlag = DAG.getNode(SPISD::CMPFCC, dl, MVT::Glue, LHS, RHS); 996894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Opc = SPISD::SELECT_FCC; 997894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC); 998894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 999894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return DAG.getNode(Opc, dl, TrueVal.getValueType(), TrueVal, FalseVal, 1000894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getConstant(SPCC, MVT::i32), CompareFlag); 1001894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1002894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1003894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG, 1004894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const SparcTargetLowering &TLI) { 1005894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineFunction &MF = DAG.getMachineFunction(); 1006894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>(); 1007894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1008894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // vastart just stores the address of the VarArgsFrameIndex slot into the 1009894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // memory location argument. 1010894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 1011894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Offset = 1012894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getNode(ISD::ADD, dl, MVT::i32, 1013894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getRegister(SP::I6, MVT::i32), 1014894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getConstant(FuncInfo->getVarArgsFrameOffset(), 1015894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MVT::i32)); 1016894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const Value *SV = cast<SrcValueSDNode>(Op.getOperand(2))->getValue(); 101719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return DAG.getStore(Op.getOperand(0), dl, Offset, Op.getOperand(1), 101819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(SV), false, false, 0); 1019894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1020894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1021894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG) { 1022894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDNode *Node = Op.getNode(); 1023894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman EVT VT = Node->getValueType(0); 1024894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue InChain = Node->getOperand(0); 1025894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue VAListPtr = Node->getOperand(1); 1026894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const Value *SV = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 1027894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Node->getDebugLoc(); 102819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue VAList = DAG.getLoad(MVT::i32, dl, InChain, VAListPtr, 102919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(SV), false, false, 0); 1030894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Increment the pointer, VAList, to the next vaarg 1031894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue NextPtr = DAG.getNode(ISD::ADD, dl, MVT::i32, VAList, 1032894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getConstant(VT.getSizeInBits()/8, 1033894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MVT::i32)); 1034894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Store the incremented VAList to the legalized pointer 1035894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman InChain = DAG.getStore(VAList.getValue(1), dl, NextPtr, 103619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VAListPtr, MachinePointerInfo(SV), false, false, 0); 1037894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Load the actual argument out of the pointer VAList, unless this is an 1038894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // f64 load. 1039894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (VT != MVT::f64) 104019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return DAG.getLoad(VT, dl, InChain, VAList, MachinePointerInfo(), 104119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman false, false, 0); 1042894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1043894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Otherwise, load it as i64, then do a bitconvert. 104419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue V = DAG.getLoad(MVT::i64, dl, InChain, VAList, MachinePointerInfo(), 1045894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman false, false, 0); 1046894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1047894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Bit-Convert the value to f64. 1048894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Ops[2] = { 104919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getNode(ISD::BITCAST, dl, MVT::f64, V), 1050894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman V.getValue(1) 1051894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman }; 1052894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return DAG.getMergeValues(Ops, 2, dl); 1053894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1054894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1055894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) { 1056894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Chain = Op.getOperand(0); // Legalize the chain. 1057894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Size = Op.getOperand(1); // Legalize the size. 1058894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = Op.getDebugLoc(); 1059894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1060894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned SPReg = SP::O6; 1061894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue SP = DAG.getCopyFromReg(Chain, dl, SPReg, MVT::i32); 1062894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue NewSP = DAG.getNode(ISD::SUB, dl, MVT::i32, SP, Size); // Value 1063894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Chain = DAG.getCopyToReg(SP.getValue(1), dl, SPReg, NewSP); // Output chain 1064894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1065894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // The resultant pointer is actually 16 words from the bottom of the stack, 1066894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // to provide a register spill area. 1067894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue NewVal = DAG.getNode(ISD::ADD, dl, MVT::i32, NewSP, 1068894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DAG.getConstant(96, MVT::i32)); 1069894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SDValue Ops[2] = { NewVal, Chain }; 1070894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return DAG.getMergeValues(Ops, 2, dl); 1071894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1072894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1073894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 107419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic SDValue getFLUSHW(SDValue Op, SelectionDAG &DAG) { 107519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DebugLoc dl = Op.getDebugLoc(); 107619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Chain = DAG.getNode(SPISD::FLUSHW, 107719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman dl, MVT::Other, DAG.getEntryNode()); 107819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return Chain; 107919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 108019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 108119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) { 108219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo(); 108319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MFI->setFrameAddressIsTaken(true); 108419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 108519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman EVT VT = Op.getValueType(); 108619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DebugLoc dl = Op.getDebugLoc(); 108719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned FrameReg = SP::I6; 108819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 108919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman uint64_t depth = Op.getConstantOperandVal(0); 109019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 109119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue FrameAddr; 109219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (depth == 0) 109319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, FrameReg, VT); 109419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else { 109519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // flush first to make sure the windowed registers' values are in stack 109619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Chain = getFLUSHW(Op, DAG); 109719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FrameAddr = DAG.getCopyFromReg(Chain, dl, FrameReg, VT); 109819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 109919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (uint64_t i = 0; i != depth; ++i) { 110019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Ptr = DAG.getNode(ISD::ADD, 110119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman dl, MVT::i32, 110219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FrameAddr, DAG.getIntPtrConstant(56)); 110319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FrameAddr = DAG.getLoad(MVT::i32, dl, 110419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Chain, 110519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Ptr, 110619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), false, false, 0); 110719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 110819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 110919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return FrameAddr; 111019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 111119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 111219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) { 111319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo(); 111419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MFI->setReturnAddressIsTaken(true); 111519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 111619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman EVT VT = Op.getValueType(); 111719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DebugLoc dl = Op.getDebugLoc(); 111819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned RetReg = SP::I7; 111919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 112019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman uint64_t depth = Op.getConstantOperandVal(0); 112119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 112219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue RetAddr; 112319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (depth == 0) 112419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RetAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, RetReg, VT); 112519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else { 112619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // flush first to make sure the windowed registers' values are in stack 112719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Chain = getFLUSHW(Op, DAG); 112819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RetAddr = DAG.getCopyFromReg(Chain, dl, SP::I6, VT); 112919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 113019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (uint64_t i = 0; i != depth; ++i) { 113119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SDValue Ptr = DAG.getNode(ISD::ADD, 113219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman dl, MVT::i32, 113319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RetAddr, 113419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman DAG.getIntPtrConstant((i == depth-1)?60:56)); 113519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RetAddr = DAG.getLoad(MVT::i32, dl, 113619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Chain, 113719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Ptr, 113819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MachinePointerInfo(), false, false, 0); 113919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 114019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 114119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return RetAddr; 114219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 114319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 1144894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSDValue SparcTargetLowering:: 1145894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanLowerOperation(SDValue Op, SelectionDAG &DAG) const { 1146894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Op.getOpcode()) { 1147894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: llvm_unreachable("Should not custom lower this!"); 114819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG); 114919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG); 1150894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::GlobalTLSAddress: 1151894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman llvm_unreachable("TLS not implemented for Sparc."); 1152894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::GlobalAddress: return LowerGlobalAddress(Op, DAG); 1153894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::ConstantPool: return LowerConstantPool(Op, DAG); 1154894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::FP_TO_SINT: return LowerFP_TO_SINT(Op, DAG); 1155894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SINT_TO_FP: return LowerSINT_TO_FP(Op, DAG); 1156894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::BR_CC: return LowerBR_CC(Op, DAG); 1157894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG); 1158894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::VASTART: return LowerVASTART(Op, DAG, *this); 1159894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::VAARG: return LowerVAARG(Op, DAG); 1160894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG); 1161894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1162894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1163894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1164894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanMachineBasicBlock * 1165894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI, 1166894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineBasicBlock *BB) const { 1167894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const TargetInstrInfo &TII = *getTargetMachine().getInstrInfo(); 1168894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned BROpcode; 1169894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned CC; 1170894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DebugLoc dl = MI->getDebugLoc(); 1171894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Figure out the conditional branch opcode to use for this select_cc. 1172894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (MI->getOpcode()) { 1173894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: llvm_unreachable("Unknown SELECT_CC!"); 1174894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SP::SELECT_CC_Int_ICC: 1175894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SP::SELECT_CC_FP_ICC: 1176894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SP::SELECT_CC_DFP_ICC: 1177894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BROpcode = SP::BCOND; 1178894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1179894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SP::SELECT_CC_Int_FCC: 1180894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SP::SELECT_CC_FP_FCC: 1181894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case SP::SELECT_CC_DFP_FCC: 1182894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BROpcode = SP::FBCOND; 1183894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1184894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1185894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1186894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CC = (SPCC::CondCodes)MI->getOperand(3).getImm(); 1187894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1188894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // To "insert" a SELECT_CC instruction, we actually have to insert the diamond 1189894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // control-flow pattern. The incoming instruction knows the destination vreg 1190894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // to set, the condition code register to branch on, the true/false values to 1191894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // select between, and a branch opcode to use. 1192894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const BasicBlock *LLVM_BB = BB->getBasicBlock(); 1193894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineFunction::iterator It = BB; 1194894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ++It; 1195894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1196894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // thisMBB: 1197894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // ... 1198894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // TrueVal = ... 1199894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // [f]bCC copy1MBB 1200894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // fallthrough --> copy0MBB 1201894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineBasicBlock *thisMBB = BB; 1202894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineFunction *F = BB->getParent(); 1203894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineBasicBlock *copy0MBB = F->CreateMachineBasicBlock(LLVM_BB); 1204894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MachineBasicBlock *sinkMBB = F->CreateMachineBasicBlock(LLVM_BB); 120519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman F->insert(It, copy0MBB); 120619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman F->insert(It, sinkMBB); 1207894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1208894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Transfer the remainder of BB and its successor edges to sinkMBB. 1209894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman sinkMBB->splice(sinkMBB->begin(), BB, 1210894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman llvm::next(MachineBasicBlock::iterator(MI)), 1211894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BB->end()); 1212894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman sinkMBB->transferSuccessorsAndUpdatePHIs(BB); 1213894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1214894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Add the true and fallthrough blocks as its successors. 1215894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BB->addSuccessor(copy0MBB); 1216894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BB->addSuccessor(sinkMBB); 1217894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1218894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BuildMI(BB, dl, TII.get(BROpcode)).addMBB(sinkMBB).addImm(CC); 1219894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1220894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // copy0MBB: 1221894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // %FalseValue = ... 1222894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // # fallthrough to sinkMBB 1223894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BB = copy0MBB; 1224894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1225894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Update machine-CFG edges 1226894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BB->addSuccessor(sinkMBB); 1227894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1228894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // sinkMBB: 1229894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // %Result = phi [ %FalseValue, copy0MBB ], [ %TrueValue, thisMBB ] 1230894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // ... 1231894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BB = sinkMBB; 1232894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BuildMI(*BB, BB->begin(), dl, TII.get(SP::PHI), MI->getOperand(0).getReg()) 1233894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman .addReg(MI->getOperand(2).getReg()).addMBB(copy0MBB) 1234894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman .addReg(MI->getOperand(1).getReg()).addMBB(thisMBB); 1235894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1236894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman MI->eraseFromParent(); // The pseudo instruction is gone now. 1237894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return BB; 1238894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1239894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1240894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 1241894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Sparc Inline Assembly Support 1242894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 1243894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1244894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// getConstraintType - Given a constraint letter, return the type of 1245894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// constraint it is for this target. 1246894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::ConstraintType 1247894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::getConstraintType(const std::string &Constraint) const { 1248894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Constraint.size() == 1) { 1249894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Constraint[0]) { 1250894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: break; 1251894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case 'r': return C_RegisterClass; 1252894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1253894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1254894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1255894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return TargetLowering::getConstraintType(Constraint); 1256894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1257894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1258894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstd::pair<unsigned, const TargetRegisterClass*> 1259894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, 1260894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman EVT VT) const { 1261894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Constraint.size() == 1) { 1262894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Constraint[0]) { 1263894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case 'r': 1264894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return std::make_pair(0U, SP::IntRegsRegisterClass); 1265894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1266894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1267894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1268894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT); 1269894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1270894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1271894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool 1272894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanSparcTargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const { 1273894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // The Sparc target isn't yet aware of offsets. 1274894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 1275894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1276