SparcISelLowering.cpp revision 12db7b68b683371a6ae464e76b4c850fa0199eeb
18c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen//===-- SparcISelLowering.cpp - Sparc DAG Lowering Implementation ---------===// 28c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// 3ecc6b8c25a7e8d9d2b78889e88224354a1cc3160tuexen// The LLVM Compiler Infrastructure 4ecc6b8c25a7e8d9d2b78889e88224354a1cc3160tuexen// 58c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// This file is distributed under the University of Illinois Open Source 68c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// License. See LICENSE.TXT for details. 78c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// 88c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen//===----------------------------------------------------------------------===// 98c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// 100ac02f34d6041cd0018437596a5a9a94685e6919tuexen// This file implements the interfaces that Sparc uses to lower LLVM code into a 118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// selection DAG. 128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// 138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen//===----------------------------------------------------------------------===// 140ac02f34d6041cd0018437596a5a9a94685e6919tuexen 158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "SparcISelLowering.h" 168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "SparcTargetMachine.h" 178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "SparcMachineFunctionInfo.h" 188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/Function.h" 198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/CodeGen/CallingConvLower.h" 208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/CodeGen/MachineFrameInfo.h" 218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/CodeGen/MachineFunction.h" 228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/CodeGen/MachineInstrBuilder.h" 238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/CodeGen/MachineRegisterInfo.h" 248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/CodeGen/SelectionDAG.h" 258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" 268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/ADT/VectorExtras.h" 278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#include "llvm/Support/ErrorHandling.h" 288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenusing namespace llvm; 298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen//===----------------------------------------------------------------------===// 328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// Calling Convention Implementation 33ecc6b8c25a7e8d9d2b78889e88224354a1cc3160tuexen//===----------------------------------------------------------------------===// 34ecc6b8c25a7e8d9d2b78889e88224354a1cc3160tuexen 35a7e2a63200c3155382d862ceb5cf07a1176ee531t#include "SparcGenCallingConv.inc" 36ecc6b8c25a7e8d9d2b78889e88224354a1cc3160tuexen 37ecc6b8c25a7e8d9d2b78889e88224354a1cc3160tuexenSDValue 388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::LowerReturn(SDValue Chain, 398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CallingConv::ID CallConv, bool isVarArg, 408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const SmallVectorImpl<ISD::OutputArg> &Outs, 418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const SmallVectorImpl<SDValue> &OutVals, 428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl, SelectionDAG &DAG) const { 438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // CCValAssign - represent the assignment of the return value to locations. 458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SmallVector<CCValAssign, 16> RVLocs; 468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // CCState - Info about the registers and stack slot. 488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCState CCInfo(CallConv, isVarArg, DAG.getTarget(), 498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RVLocs, *DAG.getContext()); 508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 51f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen // Analize return values. 528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCInfo.AnalyzeReturn(Outs, RetCC_Sparc32); 53b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // If this is the first return lowered for this function, add the regs to the 558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // liveout set for the function. 568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (DAG.getMachineFunction().getRegInfo().liveout_empty()) { 578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (unsigned i = 0; i != RVLocs.size(); ++i) 588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (RVLocs[i].isRegLoc()) 598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getMachineFunction().getRegInfo().addLiveOut(RVLocs[i].getLocReg()); 608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 618c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Flag; 638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Copy the result values into the output registers. 658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (unsigned i = 0; i != RVLocs.size(); ++i) { 668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCValAssign &VA = RVLocs[i]; 678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen assert(VA.isRegLoc() && "Can only return in registers!"); 688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getCopyToReg(Chain, dl, VA.getLocReg(), 708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen OutVals[i], Flag); 718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Guarantee that all emitted copies are stuck together with flags. 738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Flag = Chain.getValue(1); 748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (Flag.getNode()) 778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getNode(SPISD::RET_FLAG, dl, MVT::Other, Chain, Flag); 788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getNode(SPISD::RET_FLAG, dl, MVT::Other, Chain); 798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// LowerFormalArguments - V8 uses a very simple ABI, where all values are 828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// passed in either one or two GPRs, including FP values. TODO: we should 838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// pass FP values in FP registers for fastcc functions. 848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSDValue 858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::LowerFormalArguments(SDValue Chain, 868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CallingConv::ID CallConv, bool isVarArg, 878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const SmallVectorImpl<ISD::InputArg> 88f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen &Ins, 898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl, SelectionDAG &DAG, 90b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen SmallVectorImpl<SDValue> &InVals) 918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const { 92b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineFunction &MF = DAG.getMachineFunction(); 948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineRegisterInfo &RegInfo = MF.getRegInfo(); 958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>(); 968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Assign locations to all of the incoming arguments. 988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SmallVector<CCValAssign, 16> ArgLocs; 998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCState CCInfo(CallConv, isVarArg, getTargetMachine(), 1008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgLocs, *DAG.getContext()); 1018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCInfo.AnalyzeFormalArguments(Ins, CC_Sparc32); 1028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen static const unsigned ArgRegs[] = { 1048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5 1058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen }; 1068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const unsigned *CurArgReg = ArgRegs, *ArgRegEnd = ArgRegs+6; 1078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned ArgOffset = 68; 1088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1098c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { 1108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue ArgValue; 1118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCValAssign &VA = ArgLocs[i]; 1128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // FIXME: We ignore the register assignments of AnalyzeFormalArguments 1138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // because it doesn't know how to split a double into two i32 registers. 1148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen EVT ObjectVT = VA.getValVT(); 1158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (ObjectVT.getSimpleVT().SimpleTy) { 1168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Unhandled argument type!"); 1178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i1: 1188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i8: 1198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i16: 1208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i32: 1218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (!Ins[i].Used) { // Argument is dead. 1228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (CurArgReg < ArgRegEnd) ++CurArgReg; 1238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(DAG.getUNDEF(ObjectVT)); 1248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 1258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 1268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MF.getRegInfo().addLiveIn(*CurArgReg++, VReg); 1278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Arg = DAG.getCopyFromReg(Chain, dl, VReg, MVT::i32); 1288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (ObjectVT != MVT::i32) { 1298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned AssertOp = ISD::AssertSext; 1308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Arg = DAG.getNode(AssertOp, dl, MVT::i32, Arg, 1318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getValueType(ObjectVT)); 1328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Arg = DAG.getNode(ISD::TRUNCATE, dl, ObjectVT, Arg); 1338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 1348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(Arg); 1358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 1368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset, 1378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen true); 1388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 1398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Load; 1408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (ObjectVT == MVT::i32) { 1418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Load = DAG.getLoad(MVT::i32, dl, Chain, FIPtr, MachinePointerInfo(), 1428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0); 1438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 1448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ISD::LoadExtType LoadOp = ISD::SEXTLOAD; 1458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc is big endian, so add an offset based on the ObjectVT. 1478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned Offset = 4-std::max(1U, ObjectVT.getSizeInBits()/8); 1488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen FIPtr = DAG.getNode(ISD::ADD, dl, MVT::i32, FIPtr, 1498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getConstant(Offset, MVT::i32)); 1508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Load = DAG.getExtLoad(LoadOp, MVT::i32, dl, Chain, FIPtr, 1518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachinePointerInfo(), ObjectVT, false, false,0); 1528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Load = DAG.getNode(ISD::TRUNCATE, dl, ObjectVT, Load); 1538c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 1548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(Load); 1558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 1568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 4; 1588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 1598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::f32: 1608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (!Ins[i].Used) { // Argument is dead. 1618c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (CurArgReg < ArgRegEnd) ++CurArgReg; 1628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(DAG.getUNDEF(ObjectVT)); 1638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 1648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // FP value is passed in an integer register. 1658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 1668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MF.getRegInfo().addLiveIn(*CurArgReg++, VReg); 1678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Arg = DAG.getCopyFromReg(Chain, dl, VReg, MVT::i32); 1688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Arg = DAG.getNode(ISD::BITCAST, dl, MVT::f32, Arg); 1708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(Arg); 1718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 1728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset, 1738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen true); 1748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 1758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Load = DAG.getLoad(MVT::f32, dl, Chain, FIPtr, 1768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachinePointerInfo(), 1778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0); 1788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(Load); 1798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 1808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 4; 1818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 182f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen 183000a5bac556b28e74e4e98c540f66b1743e9312dtuexen case MVT::i64: 184000a5bac556b28e74e4e98c540f66b1743e9312dtuexen case MVT::f64: 1858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (!Ins[i].Used) { // Argument is dead. 186b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen if (CurArgReg < ArgRegEnd) ++CurArgReg; 1878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (CurArgReg < ArgRegEnd) ++CurArgReg; 1888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(DAG.getUNDEF(ObjectVT)); 1898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 1908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue HiVal; 1918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 1928c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned VRegHi = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 1938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MF.getRegInfo().addLiveIn(*CurArgReg++, VRegHi); 1948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen HiVal = DAG.getCopyFromReg(Chain, dl, VRegHi, MVT::i32); 1958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 1968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset, 1978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen true); 1988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 1998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen HiVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr, MachinePointerInfo(), 2008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0); 2018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 2028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue LoVal; 2048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 2058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned VRegLo = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 2068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MF.getRegInfo().addLiveIn(*CurArgReg++, VRegLo); 2078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen LoVal = DAG.getCopyFromReg(Chain, dl, VRegLo, MVT::i32); 2088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 2098c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset+4, 2108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen true); 2118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 2128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen LoVal = DAG.getLoad(MVT::i32, dl, Chain, FIPtr, MachinePointerInfo(), 2138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0); 2148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 2158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Compose the two halves together into an i64 unit. 2178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue WholeValue = 2188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i64, LoVal, HiVal); 2198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // If we want a double, do a bit convert. 2218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (ObjectVT == MVT::f64) 2228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen WholeValue = DAG.getNode(ISD::BITCAST, dl, MVT::f64, WholeValue); 2238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InVals.push_back(WholeValue); 2258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 2268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 8; 2278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 2288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 2298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 2308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Store remaining ArgRegs to the stack if this is a varargs function. 2328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (isVarArg) { 2338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Remember the vararg offset for the va_start implementation. 2348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen FuncInfo->setVarArgsFrameOffset(ArgOffset); 2358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen std::vector<SDValue> OutChains; 237f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen 2388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (; CurArgReg != ArgRegEnd; ++CurArgReg) { 239000a5bac556b28e74e4e98c540f66b1743e9312dtuexen unsigned VReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass); 2408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MF.getRegInfo().addLiveIn(*CurArgReg, VReg); 2410ac02f34d6041cd0018437596a5a9a94685e6919tuexen SDValue Arg = DAG.getCopyFromReg(DAG.getRoot(), dl, VReg, MVT::i32); 2420ac02f34d6041cd0018437596a5a9a94685e6919tuexen 243000a5bac556b28e74e4e98c540f66b1743e9312dtuexen int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset, 244b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen true); 2450ac02f34d6041cd0018437596a5a9a94685e6919tuexen SDValue FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 2468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 247f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen OutChains.push_back(DAG.getStore(DAG.getRoot(), dl, Arg, FIPtr, 2488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachinePointerInfo(), 249b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen false, false, 0)); 250000a5bac556b28e74e4e98c540f66b1743e9312dtuexen ArgOffset += 4; 251f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen } 2528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 253b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen if (!OutChains.empty()) { 2540ac02f34d6041cd0018437596a5a9a94685e6919tuexen OutChains.push_back(Chain); 2558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, 256000a5bac556b28e74e4e98c540f66b1743e9312dtuexen &OutChains[0], OutChains.size()); 2578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 2588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 2598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 260f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen return Chain; 2618c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 2628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSDValue 2648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::LowerCall(SDValue Chain, SDValue Callee, 2658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CallingConv::ID CallConv, bool isVarArg, 2668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen bool &isTailCall, 2678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const SmallVectorImpl<ISD::OutputArg> &Outs, 2688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const SmallVectorImpl<SDValue> &OutVals, 269b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen const SmallVectorImpl<ISD::InputArg> &Ins, 2708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl, SelectionDAG &DAG, 2718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SmallVectorImpl<SDValue> &InVals) const { 2728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc target does not yet support tail call optimization. 273000a5bac556b28e74e4e98c540f66b1743e9312dtuexen isTailCall = false; 2748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#if 0 2768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Analyze operands of the call, assigning locations to each operand. 2778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SmallVector<CCValAssign, 16> ArgLocs; 2788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCState CCInfo(CallConv, isVarArg, DAG.getTarget(), ArgLocs); 2798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCInfo.AnalyzeCallOperands(Outs, CC_Sparc32); 280f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen 2818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Get the size of the outgoing arguments stack space requirement. 2828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned ArgsSize = CCInfo.getNextStackOffset(); 2838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // FIXME: We can't use this until f64 is known to take two GPRs. 2848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#else 2858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen (void)CC_Sparc32; 2868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 2878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Count the size of the outgoing arguments. 2888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned ArgsSize = 0; 2898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (unsigned i = 0, e = Outs.size(); i != e; ++i) { 2908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (Outs[i].VT.SimpleTy) { 2918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Unknown value type!"); 292b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case MVT::i1: 2938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i8: 2948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i16: 2958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i32: 2968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::f32: 2978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgsSize += 4; 2988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 2998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i64: 3008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::f64: 3018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgsSize += 8; 3028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 3038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 3048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 3058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (ArgsSize > 4*6) 3068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgsSize -= 4*6; // Space for first 6 arguments is prereserved. 3078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen else 3088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgsSize = 0; 309f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen#endif 3108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Keep stack frames 8-byte aligned. 3128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgsSize = (ArgsSize+7) & ~7; 3138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, true)); 3158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass; 3178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SmallVector<SDValue, 8> MemOpChains; 318b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 3198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#if 0 320f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen // Walk the register/memloc assignments, inserting copies/loads. 3218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { 3228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CCValAssign &VA = ArgLocs[i]; 3238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Arg = OutVals[i]; 3248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Promote the value if needed. 3268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (VA.getLocInfo()) { 3278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Unknown loc info!"); 3288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case CCValAssign::Full: break; 3298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case CCValAssign::SExt: 3308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Arg = DAG.getNode(ISD::SIGN_EXTEND, VA.getLocVT(), Arg); 3318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 332b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case CCValAssign::ZExt: 3338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Arg = DAG.getNode(ISD::ZERO_EXTEND, VA.getLocVT(), Arg); 3348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 3358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case CCValAssign::AExt: 3368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Arg = DAG.getNode(ISD::ANY_EXTEND, VA.getLocVT(), Arg); 3378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 3388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 3398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Arguments that can be passed on register must be kept at 3418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // RegsToPass vector 3428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (VA.isRegLoc()) { 3438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg)); 3448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen continue; 3458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 3468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen assert(VA.isMemLoc()); 348000a5bac556b28e74e4e98c540f66b1743e9312dtuexen 3498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Create a store off the stack pointer for this argument. 3508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 3518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // FIXME: VERIFY THAT 68 IS RIGHT. 3528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue PtrOff = DAG.getIntPtrConstant(VA.getLocMemOffset()+68); 353000a5bac556b28e74e4e98c540f66b1743e9312dtuexen PtrOff = DAG.getNode(ISD::ADD, MVT::i32, StackPtr, PtrOff); 3548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MemOpChains.push_back(DAG.getStore(Chain, Arg, PtrOff, MachinePointerInfo(), 355f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen false, false, 0)); 3568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 3578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#else 3598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen static const unsigned ArgRegs[] = { 3608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5 3618c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen }; 3628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned ArgOffset = 68; 3638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 364b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen for (unsigned i = 0, e = Outs.size(); i != e; ++i) { 3658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Val = OutVals[i]; 3668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen EVT ObjectVT = Outs[i].VT; 3678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue ValToStore(0, 0); 368000a5bac556b28e74e4e98c540f66b1743e9312dtuexen SDValue ValToStore2(0, 0); 3698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned ArgOffset1 = 0, ArgOffset2 = 0; 3708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (ObjectVT.getSimpleVT().SimpleTy) { 3718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Unhandled argument type!"); 3728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i32: 3738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset1 = ArgOffset; 3748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 4; 3758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (RegsToPass.size() >= 6) { 3778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ValToStore = Val; 3788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 3798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Val)); 3808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 3818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 3838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::f32: 3848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset1 = ArgOffset; 3858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 4; 386000a5bac556b28e74e4e98c540f66b1743e9312dtuexen if (RegsToPass.size() >= 6) { 3878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ValToStore = Val; 3888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 3898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Convert this to a FP value in an int reg. 3908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Val = DAG.getNode(ISD::BITCAST, dl, MVT::i32, Val); 3918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Val)); 392f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen } 3938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 394000a5bac556b28e74e4e98c540f66b1743e9312dtuexen case MVT::f64: { 3958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 3960ac02f34d6041cd0018437596a5a9a94685e6919tuexen if (RegsToPass.size() >= 6) { 3970ac02f34d6041cd0018437596a5a9a94685e6919tuexen if (ArgOffset % 8 == 0) { 398000a5bac556b28e74e4e98c540f66b1743e9312dtuexen ArgOffset1 = ArgOffset; 399b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen ArgOffset += 8; 4000ac02f34d6041cd0018437596a5a9a94685e6919tuexen ValToStore = Val; // Whole thing is passed in memory. 4018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 402f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen } 4038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 404b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // Break into top and bottom parts by storing to the stack and loading 405b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // out the parts as integers. 4068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue StackPtr = DAG.CreateStackTemporary(MVT::f64, MVT::i32); 407f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen SDValue Store = DAG.getStore(DAG.getEntryNode(), dl, 4088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Val, StackPtr, MachinePointerInfo(), 409b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen false, false, 0); 4108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc is big-endian, so the high part comes first. 4118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Hi = DAG.getLoad(MVT::i32, dl, Store, StackPtr, 4128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachinePointerInfo(), false, false, 0); 4138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Increment the pointer to the other half. 414b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen StackPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), StackPtr, 4158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getIntPtrConstant(4)); 416f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen // Load the low part. 4178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Lo = DAG.getLoad(MVT::i32, dl, Store, StackPtr, 4188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachinePointerInfo(), false, false, 0); 4198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 4208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (RegsToPass.size() >= 6) { 4218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset1 = ArgOffset; 4228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ValToStore = Hi; 4238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 4248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Hi)); 425b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen } 4268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 4; 4278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (RegsToPass.size() >= 6) { 4288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset2 = ArgOffset; 4298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ValToStore2 = Lo; 4308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 4318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Lo)); 4328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 433f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen ArgOffset += 4; 4348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 4358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 4368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case MVT::i64: { 4378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 4388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (RegsToPass.size() >= 6) { 4398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (ArgOffset % 8 == 0) { 4408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset1 = ArgOffset; 4418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 8; 442b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen ValToStore = Val; // Whole thing is passed in memory. 4438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 4448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 445f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen } 4468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 4478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Split the value into top and bottom part. Top part goes in a reg. 4488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, Val, 4498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getConstant(1, MVT::i32)); 4508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, Val, 4518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getConstant(0, MVT::i32)); 4528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (RegsToPass.size() >= 6) { 4538c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset1 = ArgOffset; 4548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ValToStore = Hi; 4558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 4568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Hi)); 457b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen } 4588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 4; 459000a5bac556b28e74e4e98c540f66b1743e9312dtuexen if (RegsToPass.size() >= 6) { 4608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset2 = ArgOffset; 461000a5bac556b28e74e4e98c540f66b1743e9312dtuexen ValToStore2 = Lo; 462b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen } else { 4638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RegsToPass.push_back(std::make_pair(ArgRegs[RegsToPass.size()], Lo)); 4648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 4658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ArgOffset += 4; 4668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 4678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 4688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 4698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 4708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (ValToStore.getNode()) { 4718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 472f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen SDValue PtrOff = DAG.getConstant(ArgOffset1, MVT::i32); 4738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 4748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MemOpChains.push_back(DAG.getStore(Chain, dl, ValToStore, 4758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen PtrOff, MachinePointerInfo(), 4768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0)); 4778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 4788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (ValToStore2.getNode()) { 4798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue StackPtr = DAG.getRegister(SP::O6, MVT::i32); 4808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue PtrOff = DAG.getConstant(ArgOffset2, MVT::i32); 481b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 4828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MemOpChains.push_back(DAG.getStore(Chain, dl, ValToStore2, 483f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen PtrOff, MachinePointerInfo(), 4848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0)); 4858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 4868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 4878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen#endif 4888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 4898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Emit all stores, make sure the occur before any copies into physregs. 4908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (!MemOpChains.empty()) 4918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, 4928c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen &MemOpChains[0], MemOpChains.size()); 4938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 4948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Build a sequence of copy-to-reg nodes chained together with token 495b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // chain and flag operands which copy the outgoing args into registers. 4968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // The InFlag in necessary since all emited instructions must be 497b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // stuck together. 4988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue InFlag; 4998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 5008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned Reg = RegsToPass[i].first; 5018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Remap I0->I7 -> O0->O7. 5028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (Reg >= SP::I0 && Reg <= SP::I7) 5038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Reg = Reg-SP::I0+SP::O0; 5048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getCopyToReg(Chain, dl, Reg, RegsToPass[i].second, InFlag); 5068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InFlag = Chain.getValue(1); 507f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen } 5088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5098c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // If the callee is a GlobalAddress node (quite common, every direct call is) 5108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // turn it into a TargetGlobalAddress node so that legalize doesn't hack it. 5118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Likewise ExternalSymbol -> TargetExternalSymbol. 5128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) 5138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl, MVT::i32); 5148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen else if (ExternalSymbolSDNode *E = dyn_cast<ExternalSymbolSDNode>(Callee)) 5158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Callee = DAG.getTargetExternalSymbol(E->getSymbol(), MVT::i32); 516b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 5178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen std::vector<EVT> NodeTys; 518f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen NodeTys.push_back(MVT::Other); // Returns a chain 5198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen NodeTys.push_back(MVT::Glue); // Returns a flag for retval copy to use. 5208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Ops[] = { Chain, Callee, InFlag }; 5218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getNode(SPISD::CALL, dl, NodeTys, Ops, InFlag.getNode() ? 3 : 2); 5228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InFlag = Chain.getValue(1); 5238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(ArgsSize, true), 5258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getIntPtrConstant(0, true), InFlag); 5268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InFlag = Chain.getValue(1); 5278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Assign locations to each value returned by this call. 5298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SmallVector<CCValAssign, 16> RVLocs; 530b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen CCState RVInfo(CallConv, isVarArg, DAG.getTarget(), 5318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RVLocs, *DAG.getContext()); 532b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 5338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RVInfo.AnalyzeCallResult(Ins, RetCC_Sparc32); 5348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Copy all of the result registers out of their specified physreg. 5368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen for (unsigned i = 0; i != RVLocs.size(); ++i) { 5378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned Reg = RVLocs[i].getLocReg(); 5388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Remap I0->I7 -> O0->O7. 5408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (Reg >= SP::I0 && Reg <= SP::I7) 5418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Reg = Reg-SP::I0+SP::O0; 5428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getCopyFromReg(Chain, dl, Reg, 544b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen RVLocs[i].getValVT(), InFlag).getValue(1); 5458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InFlag = Chain.getValue(2); 546b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen InVals.push_back(Chain.getValue(0)); 5478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 5488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return Chain; 550f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen} 5518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5520ac02f34d6041cd0018437596a5a9a94685e6919tuexen 5530ac02f34d6041cd0018437596a5a9a94685e6919tuexen 5540ac02f34d6041cd0018437596a5a9a94685e6919tuexen//===----------------------------------------------------------------------===// 555b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen// TargetLowering Implementation 5560ac02f34d6041cd0018437596a5a9a94685e6919tuexen//===----------------------------------------------------------------------===// 5578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 558f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen/// IntCondCCodeToICC - Convert a DAG integer condition code to a SPARC ICC 5598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// condition. 5600ac02f34d6041cd0018437596a5a9a94685e6919tuexenstatic SPCC::CondCodes IntCondCCodeToICC(ISD::CondCode CC) { 561b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen switch (CC) { 5628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Unknown integer condition code!"); 563000a5bac556b28e74e4e98c540f66b1743e9312dtuexen case ISD::SETEQ: return SPCC::ICC_E; 5648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETNE: return SPCC::ICC_NE; 5658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETLT: return SPCC::ICC_L; 5668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETGT: return SPCC::ICC_G; 5678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETLE: return SPCC::ICC_LE; 568f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen case ISD::SETGE: return SPCC::ICC_GE; 5698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETULT: return SPCC::ICC_CS; 5708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETULE: return SPCC::ICC_LEU; 5718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETUGT: return SPCC::ICC_GU; 5728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETUGE: return SPCC::ICC_CC; 5738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 5748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 5758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 5768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// FPCondCCodeToFCC - Convert a DAG floatingp oint condition code to a SPARC 577b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen/// FCC condition. 5788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic SPCC::CondCodes FPCondCCodeToFCC(ISD::CondCode CC) { 579f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen switch (CC) { 5808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Unknown fp condition code!"); 5818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETEQ: 5828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETOEQ: return SPCC::FCC_E; 5838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETNE: 5848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETUNE: return SPCC::FCC_NE; 5858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETLT: 5868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETOLT: return SPCC::FCC_L; 5878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETGT: 5888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETOGT: return SPCC::FCC_G; 5898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETLE: 5908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETOLE: return SPCC::FCC_LE; 591b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case ISD::SETGE: 5928c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETOGE: return SPCC::FCC_GE; 5938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETULT: return SPCC::FCC_UL; 5948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETULE: return SPCC::FCC_ULE; 5958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETUGT: return SPCC::FCC_UG; 5968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETUGE: return SPCC::FCC_UGE; 5978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETUO: return SPCC::FCC_U; 5988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETO: return SPCC::FCC_O; 599b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case ISD::SETONE: return SPCC::FCC_LG; 6008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SETUEQ: return SPCC::FCC_UE; 6018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 6028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 6038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::SparcTargetLowering(TargetMachine &TM) 6058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen : TargetLowering(TM, new TargetLoweringObjectFileELF()) { 6068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Set up the register classes. 608b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen addRegisterClass(MVT::i32, SP::IntRegsRegisterClass); 609f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen addRegisterClass(MVT::f32, SP::FPRegsRegisterClass); 610b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen addRegisterClass(MVT::f64, SP::DFPRegsRegisterClass); 611b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 6128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Turn FP extload into load/fextend 6138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand); 6148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc doesn't have i1 sign extending load 6158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setLoadExtAction(ISD::SEXTLOAD, MVT::i1, Promote); 6168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Turn FP truncstore into trunc + store. 617000a5bac556b28e74e4e98c540f66b1743e9312dtuexen setTruncStoreAction(MVT::f64, MVT::f32, Expand); 6188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Custom legalize GlobalAddress nodes into LO/HI parts. 6208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::GlobalAddress, MVT::i32, Custom); 6218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::GlobalTLSAddress, MVT::i32, Custom); 6228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::ConstantPool , MVT::i32, Custom); 6238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc doesn't have sext_inreg, replace them with shl/sra 6258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand); 6268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8 , Expand); 6278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1 , Expand); 6288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc has no REM or DIVREM operations. 6308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::UREM, MVT::i32, Expand); 6318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SREM, MVT::i32, Expand); 6328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SDIVREM, MVT::i32, Expand); 633000a5bac556b28e74e4e98c540f66b1743e9312dtuexen setOperationAction(ISD::UDIVREM, MVT::i32, Expand); 6348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Custom expand fp<->sint 6368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom); 6378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom); 6388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Expand fp<->uint 6408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand); 6418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand); 6428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::BITCAST, MVT::f32, Expand); 6448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::BITCAST, MVT::i32, Expand); 6458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc has no select or setcc: expand to SELECT_CC. 6478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SELECT, MVT::i32, Expand); 6488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SELECT, MVT::f32, Expand); 6498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SELECT, MVT::f64, Expand); 6508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SETCC, MVT::i32, Expand); 6518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SETCC, MVT::f32, Expand); 6528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SETCC, MVT::f64, Expand); 6538c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Sparc doesn't have BRCOND either, it has BR_CC. 655f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen setOperationAction(ISD::BRCOND, MVT::Other, Expand); 6568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::BRIND, MVT::Other, Expand); 6578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::BR_JT, MVT::Other, Expand); 6588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::BR_CC, MVT::i32, Custom); 6598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::BR_CC, MVT::f32, Custom); 660b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen setOperationAction(ISD::BR_CC, MVT::f64, Custom); 6618c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SELECT_CC, MVT::i32, Custom); 6638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SELECT_CC, MVT::f32, Custom); 6648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SELECT_CC, MVT::f64, Custom); 6658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 666b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // SPARC has no intrinsics for these particular operations. 6678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand); 6688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 6698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FSIN , MVT::f64, Expand); 670000a5bac556b28e74e4e98c540f66b1743e9312dtuexen setOperationAction(ISD::FCOS , MVT::f64, Expand); 671000a5bac556b28e74e4e98c540f66b1743e9312dtuexen setOperationAction(ISD::FREM , MVT::f64, Expand); 6728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FSIN , MVT::f32, Expand); 6738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FCOS , MVT::f32, Expand); 6748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FREM , MVT::f32, Expand); 6758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::CTPOP, MVT::i32, Expand); 676f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen setOperationAction(ISD::CTTZ , MVT::i32, Expand); 6778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::CTLZ , MVT::i32, Expand); 678b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen setOperationAction(ISD::ROTL , MVT::i32, Expand); 6798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::ROTR , MVT::i32, Expand); 680b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen setOperationAction(ISD::BSWAP, MVT::i32, Expand); 681f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand); 6828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand); 6838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FPOW , MVT::f64, Expand); 6848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::FPOW , MVT::f32, Expand); 685b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 6868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SHL_PARTS, MVT::i32, Expand); 6878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SRA_PARTS, MVT::i32, Expand); 688b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen setOperationAction(ISD::SRL_PARTS, MVT::i32, Expand); 689f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen 6908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // FIXME: Sparc provides these multiplies, but we don't have them yet. 6918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand); 6928c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand); 693b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 6948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::EH_LABEL, MVT::Other, Expand); 695f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen 6968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // VASTART needs to be custom lowered to use the VarArgsFrameIndex. 6978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::VASTART , MVT::Other, Custom); 6988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // VAARG needs to be lowered to not do unaligned accesses for doubles. 6998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::VAARG , MVT::Other, Custom); 7008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 7018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Use the default implementation. 702b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen setOperationAction(ISD::VACOPY , MVT::Other, Expand); 7038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::VAEND , MVT::Other, Expand); 7048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::STACKSAVE , MVT::Other, Expand); 7058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::STACKRESTORE , MVT::Other, Expand); 7068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Custom); 7078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 708b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // No debug info support yet. 709f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen setOperationAction(ISD::EH_LABEL, MVT::Other, Expand); 7100ac02f34d6041cd0018437596a5a9a94685e6919tuexen 711b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen setStackPointerRegisterToSaveRestore(SP::O6); 712b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 713b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen if (TM.getSubtarget<SparcSubtarget>().isV9()) 7148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen setOperationAction(ISD::CTPOP, MVT::i32, Legal); 7158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 7168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen computeRegisterProperties(); 717b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen} 718f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen 7198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenconst char *SparcTargetLowering::getTargetNodeName(unsigned Opcode) const { 720b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen switch (Opcode) { 721b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen default: return 0; 722b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case SPISD::CMPICC: return "SPISD::CMPICC"; 7238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::CMPFCC: return "SPISD::CMPFCC"; 7248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::BRICC: return "SPISD::BRICC"; 7258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::BRFCC: return "SPISD::BRFCC"; 7268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::SELECT_ICC: return "SPISD::SELECT_ICC"; 7278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::SELECT_FCC: return "SPISD::SELECT_FCC"; 7288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::Hi: return "SPISD::Hi"; 729f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen case SPISD::Lo: return "SPISD::Lo"; 7308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::FTOI: return "SPISD::FTOI"; 731b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case SPISD::ITOF: return "SPISD::ITOF"; 732b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case SPISD::CALL: return "SPISD::CALL"; 733b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case SPISD::RET_FLAG: return "SPISD::RET_FLAG"; 7348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 7358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 736b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 7378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to 7388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// be zero. Op is expected to be a target specific node. Used by DAG 7398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// combiner. 7408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenvoid SparcTargetLowering::computeMaskedBitsForTargetNode(const SDValue Op, 7418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const APInt &Mask, 7420ac02f34d6041cd0018437596a5a9a94685e6919tuexen APInt &KnownZero, 7438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen APInt &KnownOne, 7448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const SelectionDAG &DAG, 745f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen unsigned Depth) const { 7468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen APInt KnownZero2, KnownOne2; 747b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen KnownZero = KnownOne = APInt(Mask.getBitWidth(), 0); // Don't know anything. 7488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 7498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (Op.getOpcode()) { 7508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: break; 7518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::SELECT_ICC: 7528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SPISD::SELECT_FCC: 7538c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.ComputeMaskedBits(Op.getOperand(1), Mask, KnownZero, KnownOne, 7548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Depth+1); 7558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.ComputeMaskedBits(Op.getOperand(0), Mask, KnownZero2, KnownOne2, 7568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Depth+1); 7578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?"); 7588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?"); 7598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 7608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Only known if known in both the LHS and RHS. 7618c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen KnownOne &= KnownOne2; 7628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen KnownZero &= KnownZero2; 7638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 7648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 7658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 7668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 7678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// Look at LHS/RHS/CC and see if they are a lowered setcc instruction. If so 7688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// set LHS/RHS and SPCC to the LHS/RHS of the setcc and SPCC to the condition. 7698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic void LookThroughSetCC(SDValue &LHS, SDValue &RHS, 7708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ISD::CondCode CC, unsigned &SPCC) { 7718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (isa<ConstantSDNode>(RHS) && 7728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen cast<ConstantSDNode>(RHS)->isNullValue() && 7738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CC == ISD::SETNE && 7748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ((LHS.getOpcode() == SPISD::SELECT_ICC && 7758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen LHS.getOperand(3).getOpcode() == SPISD::CMPICC) || 7768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen (LHS.getOpcode() == SPISD::SELECT_FCC && 7778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen LHS.getOperand(3).getOpcode() == SPISD::CMPFCC)) && 7788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen isa<ConstantSDNode>(LHS.getOperand(0)) && 7798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen isa<ConstantSDNode>(LHS.getOperand(1)) && 7808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen cast<ConstantSDNode>(LHS.getOperand(0))->isOne() && 7818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen cast<ConstantSDNode>(LHS.getOperand(1))->isNullValue()) { 7828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue CMPCC = LHS.getOperand(3); 7838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SPCC = cast<ConstantSDNode>(LHS.getOperand(2))->getZExtValue(); 7848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen LHS = CMPCC.getOperand(0); 7858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen RHS = CMPCC.getOperand(1); 7868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 7878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 7888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 789b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexenSDValue SparcTargetLowering::LowerGlobalAddress(SDValue Op, 790b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen SelectionDAG &DAG) const { 791b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); 792b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // FIXME there isn't really any debug info here 793b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen DebugLoc dl = Op.getDebugLoc(); 794b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen SDValue GA = DAG.getTargetGlobalAddress(GV, dl, MVT::i32); 7958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Hi = DAG.getNode(SPISD::Hi, dl, MVT::i32, GA); 7968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Lo = DAG.getNode(SPISD::Lo, dl, MVT::i32, GA); 7978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 7988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (getTargetMachine().getRelocationModel() != Reloc::PIC_) 7998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 8008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue GlobalBase = DAG.getNode(SPISD::GLOBAL_BASE_REG, dl, 8028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen getPointerTy()); 8038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue RelAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 8048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue AbsAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, 8058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen GlobalBase, RelAddr); 8068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(), 8078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen AbsAddr, MachinePointerInfo(), false, false, 0); 8088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 8098c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSDValue SparcTargetLowering::LowerConstantPool(SDValue Op, 8118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SelectionDAG &DAG) const { 8128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ConstantPoolSDNode *N = cast<ConstantPoolSDNode>(Op); 8138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // FIXME there isn't really any debug info here 8148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Op.getDebugLoc(); 8158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const Constant *C = N->getConstVal(); 8168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue CP = DAG.getTargetConstantPool(C, MVT::i32, N->getAlignment()); 8178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Hi = DAG.getNode(SPISD::Hi, dl, MVT::i32, CP); 8188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Lo = DAG.getNode(SPISD::Lo, dl, MVT::i32, CP); 8198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (getTargetMachine().getRelocationModel() != Reloc::PIC_) 8208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 8218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue GlobalBase = DAG.getNode(SPISD::GLOBAL_BASE_REG, dl, 8238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen getPointerTy()); 8248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue RelAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, Lo, Hi); 8258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue AbsAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, 8268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen GlobalBase, RelAddr); 8278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(), 8288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen AbsAddr, MachinePointerInfo(), false, false, 0); 8298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 8308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic SDValue LowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) { 8328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Op.getDebugLoc(); 8338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Convert the fp value to integer in an FP register. 8348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen assert(Op.getValueType() == MVT::i32); 8358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Op = DAG.getNode(SPISD::FTOI, dl, MVT::f32, Op.getOperand(0)); 8368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getNode(ISD::BITCAST, dl, MVT::i32, Op); 8378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 838000a5bac556b28e74e4e98c540f66b1743e9312dtuexen 8398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG) { 8408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Op.getDebugLoc(); 8418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen assert(Op.getOperand(0).getValueType() == MVT::i32); 8428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Tmp = DAG.getNode(ISD::BITCAST, dl, MVT::f32, Op.getOperand(0)); 843000a5bac556b28e74e4e98c540f66b1743e9312dtuexen // Convert the int value to FP in an FP register. 844000a5bac556b28e74e4e98c540f66b1743e9312dtuexen return DAG.getNode(SPISD::ITOF, dl, Op.getValueType(), Tmp); 8458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 846000a5bac556b28e74e4e98c540f66b1743e9312dtuexen 8478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) { 848000a5bac556b28e74e4e98c540f66b1743e9312dtuexen SDValue Chain = Op.getOperand(0); 8498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get(); 8508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue LHS = Op.getOperand(2); 8518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue RHS = Op.getOperand(3); 8528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Dest = Op.getOperand(4); 8538c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Op.getDebugLoc(); 8548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned Opc, SPCC = ~0U; 8558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 856b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // If this is a br_cc of a "setcc", and if the setcc got lowered into 8578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values. 8588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen LookThroughSetCC(LHS, RHS, CC, SPCC); 8598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Get the condition flag. 861f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen SDValue CompareFlag; 8628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (LHS.getValueType() == MVT::i32) { 863b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen std::vector<EVT> VTs; 8648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen VTs.push_back(MVT::i32); 8658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen VTs.push_back(MVT::Glue); 866000a5bac556b28e74e4e98c540f66b1743e9312dtuexen SDValue Ops[2] = { LHS, RHS }; 8678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CompareFlag = DAG.getNode(SPISD::CMPICC, dl, VTs, Ops, 2).getValue(1); 8688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC); 8698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Opc = SPISD::BRICC; 8708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 8718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CompareFlag = DAG.getNode(SPISD::CMPFCC, dl, MVT::Glue, LHS, RHS); 8728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC); 8738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Opc = SPISD::BRFCC; 8748c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 8758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getNode(Opc, dl, MVT::Other, Chain, Dest, 876b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen DAG.getConstant(SPCC, MVT::i32), CompareFlag); 8778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 8788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) { 8808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue LHS = Op.getOperand(0); 8818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue RHS = Op.getOperand(1); 8828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(4))->get(); 8838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue TrueVal = Op.getOperand(2); 8848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue FalseVal = Op.getOperand(3); 8858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Op.getDebugLoc(); 8868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned Opc, SPCC = ~0U; 8878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // If this is a select_cc of a "setcc", and if the setcc got lowered into 8898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values. 8908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen LookThroughSetCC(LHS, RHS, CC, SPCC); 8918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 8928c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue CompareFlag; 8938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (LHS.getValueType() == MVT::i32) { 8948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen std::vector<EVT> VTs; 8958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen VTs.push_back(LHS.getValueType()); // subcc returns a value 8968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen VTs.push_back(MVT::Glue); 897f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen SDValue Ops[2] = { LHS, RHS }; 8988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CompareFlag = DAG.getNode(SPISD::CMPICC, dl, VTs, Ops, 2).getValue(1); 899b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen Opc = SPISD::SELECT_ICC; 9008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC); 9018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } else { 9028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CompareFlag = DAG.getNode(SPISD::CMPFCC, dl, MVT::Glue, LHS, RHS); 9038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Opc = SPISD::SELECT_FCC; 9048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC); 9058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 9068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getNode(Opc, dl, TrueVal.getValueType(), TrueVal, FalseVal, 9078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getConstant(SPCC, MVT::i32), CompareFlag); 9088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 9098c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG, 9118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const SparcTargetLowering &TLI) { 9128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineFunction &MF = DAG.getMachineFunction(); 9138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>(); 9148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // vastart just stores the address of the VarArgsFrameIndex slot into the 9168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // memory location argument. 9178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Op.getDebugLoc(); 918000a5bac556b28e74e4e98c540f66b1743e9312dtuexen SDValue Offset = 9198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getNode(ISD::ADD, dl, MVT::i32, 9208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getRegister(SP::I6, MVT::i32), 9218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getConstant(FuncInfo->getVarArgsFrameOffset(), 9228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MVT::i32)); 9238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const Value *SV = cast<SrcValueSDNode>(Op.getOperand(2))->getValue(); 9248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getStore(Op.getOperand(0), dl, Offset, Op.getOperand(1), 9258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachinePointerInfo(SV), false, false, 0); 9268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 9278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 928b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexenstatic SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG) { 929b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen SDNode *Node = Op.getNode(); 9308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen EVT VT = Node->getValueType(0); 9318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue InChain = Node->getOperand(0); 9328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue VAListPtr = Node->getOperand(1); 9338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const Value *SV = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 9348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Node->getDebugLoc(); 9358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue VAList = DAG.getLoad(MVT::i32, dl, InChain, VAListPtr, 9368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachinePointerInfo(SV), false, false, 0); 9378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Increment the pointer, VAList, to the next vaarg 9388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue NextPtr = DAG.getNode(ISD::ADD, dl, MVT::i32, VAList, 9398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getConstant(VT.getSizeInBits()/8, 9408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MVT::i32)); 9418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Store the incremented VAList to the legalized pointer 9428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen InChain = DAG.getStore(VAList.getValue(1), dl, NextPtr, 9438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen VAListPtr, MachinePointerInfo(SV), false, false, 0); 9448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Load the actual argument out of the pointer VAList, unless this is an 9458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // f64 load. 9468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (VT != MVT::f64) 9478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getLoad(VT, dl, InChain, VAList, MachinePointerInfo(), 9488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0); 9498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Otherwise, load it as i64, then do a bitconvert. 9518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue V = DAG.getLoad(MVT::i64, dl, InChain, VAList, MachinePointerInfo(), 9528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen false, false, 0); 9538c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Bit-Convert the value to f64. 9558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Ops[2] = { 9568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getNode(ISD::BITCAST, dl, MVT::f64, V), 9578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen V.getValue(1) 9588c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen }; 9598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getMergeValues(Ops, 2, dl); 9608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 9618c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9628c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstatic SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) { 9638c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Chain = Op.getOperand(0); // Legalize the chain. 9648c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Size = Op.getOperand(1); // Legalize the size. 9658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = Op.getDebugLoc(); 9668c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned SPReg = SP::O6; 968f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen SDValue SP = DAG.getCopyFromReg(Chain, dl, SPReg, MVT::i32); 9698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue NewSP = DAG.getNode(ISD::SUB, dl, MVT::i32, SP, Size); // Value 9708c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen Chain = DAG.getCopyToReg(SP.getValue(1), dl, SPReg, NewSP); // Output chain 971b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 9728c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // The resultant pointer is actually 16 words from the bottom of the stack, 9738c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // to provide a register spill area. 974b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen SDValue NewVal = DAG.getNode(ISD::ADD, dl, MVT::i32, NewSP, 9758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DAG.getConstant(96, MVT::i32)); 9768c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SDValue Ops[2] = { NewVal, Chain }; 9778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return DAG.getMergeValues(Ops, 2, dl); 9788c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 9798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 9818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSDValue SparcTargetLowering:: 9828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenLowerOperation(SDValue Op, SelectionDAG &DAG) const { 9838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (Op.getOpcode()) { 9848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Should not custom lower this!"); 9858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Frame & Return address. Currently unimplemented 9868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::RETURNADDR: return SDValue(); 9878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::FRAMEADDR: return SDValue(); 9888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::GlobalTLSAddress: 9898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen llvm_unreachable("TLS not implemented for Sparc."); 9908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::GlobalAddress: return LowerGlobalAddress(Op, DAG); 991f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen case ISD::ConstantPool: return LowerConstantPool(Op, DAG); 9928c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::FP_TO_SINT: return LowerFP_TO_SINT(Op, DAG); 993b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen case ISD::SINT_TO_FP: return LowerSINT_TO_FP(Op, DAG); 9948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::BR_CC: return LowerBR_CC(Op, DAG); 9958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG); 9968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::VASTART: return LowerVASTART(Op, DAG, *this); 9978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::VAARG: return LowerVAARG(Op, DAG); 9988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG); 9998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 10008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 10018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenMachineBasicBlock * 10038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI, 10048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineBasicBlock *BB) const { 10058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const TargetInstrInfo &TII = *getTargetMachine().getInstrInfo(); 10068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned BROpcode; 10078c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen unsigned CC; 10088c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen DebugLoc dl = MI->getDebugLoc(); 10098c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Figure out the conditional branch opcode to use for this select_cc. 10108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (MI->getOpcode()) { 10118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: llvm_unreachable("Unknown SELECT_CC!"); 10128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SP::SELECT_CC_Int_ICC: 10138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SP::SELECT_CC_FP_ICC: 10148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SP::SELECT_CC_DFP_ICC: 10158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen BROpcode = SP::BCOND; 10168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 10178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SP::SELECT_CC_Int_FCC: 10188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SP::SELECT_CC_FP_FCC: 10198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case SP::SELECT_CC_DFP_FCC: 10208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen BROpcode = SP::FBCOND; 10218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen break; 10228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 10238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen CC = (SPCC::CondCodes)MI->getOperand(3).getImm(); 10258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // To "insert" a SELECT_CC instruction, we actually have to insert the diamond 10278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // control-flow pattern. The incoming instruction knows the destination vreg 10288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // to set, the condition code register to branch on, the true/false values to 10298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // select between, and a branch opcode to use. 10308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen const BasicBlock *LLVM_BB = BB->getBasicBlock(); 1031f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen MachineFunction::iterator It = BB; 10328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen ++It; 10338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1034b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // thisMBB: 10358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // ... 10368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // TrueVal = ... 1037b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen // [f]bCC copy1MBB 10388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // fallthrough --> copy0MBB 10398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineBasicBlock *thisMBB = BB; 10408c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineFunction *F = BB->getParent(); 10418c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineBasicBlock *copy0MBB = F->CreateMachineBasicBlock(LLVM_BB); 10428c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen MachineBasicBlock *sinkMBB = F->CreateMachineBasicBlock(LLVM_BB); 10438c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen F->insert(It, copy0MBB); 10448c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen F->insert(It, sinkMBB); 10458c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10468c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Transfer the remainder of BB and its successor edges to sinkMBB. 10478c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen sinkMBB->splice(sinkMBB->begin(), BB, 10488c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen llvm::next(MachineBasicBlock::iterator(MI)), 10498c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen BB->end()); 10508c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen sinkMBB->transferSuccessorsAndUpdatePHIs(BB); 10518c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10528c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // Add the true and fallthrough blocks as its successors. 10538c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen BB->addSuccessor(copy0MBB); 10548c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen BB->addSuccessor(sinkMBB); 10558c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10568c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen BuildMI(BB, dl, TII.get(BROpcode)).addMBB(sinkMBB).addImm(CC); 10578c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1058f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen // copy0MBB: 10598c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // %FalseValue = ... 10608c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // # fallthrough to sinkMBB 10610ac02f34d6041cd0018437596a5a9a94685e6919tuexen BB = copy0MBB; 10620ac02f34d6041cd0018437596a5a9a94685e6919tuexen 10630ac02f34d6041cd0018437596a5a9a94685e6919tuexen // Update machine-CFG edges 10640ac02f34d6041cd0018437596a5a9a94685e6919tuexen BB->addSuccessor(sinkMBB); 10658c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1066f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen // sinkMBB: 10678c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // %Result = phi [ %FalseValue, copy0MBB ], [ %TrueValue, thisMBB ] 10688c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // ... 10698c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen BB = sinkMBB; 1070b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen BuildMI(*BB, BB->begin(), dl, TII.get(SP::PHI), MI->getOperand(0).getReg()) 10718c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen .addReg(MI->getOperand(2).getReg()).addMBB(copy0MBB) 1072f7068d8ea8f314aa54a3aaec7d3603a9b9b55e0ctuexen .addReg(MI->getOperand(1).getReg()).addMBB(thisMBB); 1073000a5bac556b28e74e4e98c540f66b1743e9312dtuexen 1074000a5bac556b28e74e4e98c540f66b1743e9312dtuexen MI->eraseFromParent(); // The pseudo instruction is gone now. 10758c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return BB; 1076b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen} 10778c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 1078ef2346ee09e2a6d7e580c0d41191f82e3b1f4937t//===----------------------------------------------------------------------===// 10798c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen// Sparc Inline Assembly Support 10808c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen//===----------------------------------------------------------------------===// 10818c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10828c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// getConstraintType - Given a constraint letter, return the type of 10838c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// constraint it is for this target. 10848c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::ConstraintType 10858c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::getConstraintType(const std::string &Constraint) const { 10868c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (Constraint.size() == 1) { 10878c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (Constraint[0]) { 10888c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: break; 10898c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case 'r': return C_RegisterClass; 10908c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 10918c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 10928c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10938c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return TargetLowering::getConstraintType(Constraint); 10948c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 10958c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 10968c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenstd::pair<unsigned, const TargetRegisterClass*> 10978c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, 10988c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen EVT VT) const { 10998c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (Constraint.size() == 1) { 11008c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (Constraint[0]) { 11018c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case 'r': 11028c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return std::make_pair(0U, SP::IntRegsRegisterClass); 11038c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 11048c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 11058c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 11068c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT); 1107b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen} 1108b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexen 1109b7ebbfc1bd4420174e2a11b3b2bfd64281f44032tuexenstd::vector<unsigned> SparcTargetLowering:: 11108c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexengetRegClassForInlineAsmConstraint(const std::string &Constraint, 11118c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen EVT VT) const { 11128c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen if (Constraint.size() != 1) 11138c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return std::vector<unsigned>(); 11148c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 11158c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen switch (Constraint[0]) { 11168c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen default: break; 11178c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen case 'r': 11188c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return make_vector<unsigned>(SP::L0, SP::L1, SP::L2, SP::L3, 11198c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SP::L4, SP::L5, SP::L6, SP::L7, 11208c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SP::I0, SP::I1, SP::I2, SP::I3, 11218c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SP::I4, SP::I5, 11228c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SP::O0, SP::O1, SP::O2, SP::O3, 11238c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen SP::O4, SP::O5, SP::O7, 0); 11248c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen } 11258c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 11268c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return std::vector<unsigned>(); 11278c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 11288c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 11298c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenbool 11308c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenSparcTargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const { 11318c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen // The Sparc target isn't yet aware of offsets. 11328c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return false; 11338c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 11348c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen 11358c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen/// getFunctionAlignment - Return the Log2 alignment of this function. 11368c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexenunsigned SparcTargetLowering::getFunctionAlignment(const Function *) const { 11378c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen return 2; 11388c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen} 11398c8a4cae58a2deed148551d56cb1ab315a55dbbdtuexen