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When we want a constant, just use it, instead of calling through layers of
virtual methods and register name mapping functions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15690 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -19,6 +19,8 @@
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#include "SparcV9InstrForest.h"
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#include "SparcV9Internals.h"
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#include "SparcV9TmpInstr.h"
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#include "SparcV9FrameInfo.h"
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#include "SparcV9RegisterInfo.h"
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#include "llvm/CodeGen/IntrinsicLowering.h"
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#include "llvm/CodeGen/MachineConstantPool.h"
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#include "llvm/CodeGen/MachineFunction.h"
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@ -2779,13 +2781,11 @@ static bool CodeGenIntrinsic(Intrinsic::ID iid, CallInst &callInstr,
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assert(0 && "Unknown intrinsic function call should have been lowered!");
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case Intrinsic::vastart: {
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// Get the address of the first incoming vararg argument on the stack
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bool ignore;
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Function* func = cast<Function>(callInstr.getParent()->getParent());
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int numFixedArgs = func->getFunctionType()->getNumParams();
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int fpReg = target.getFrameInfo()->getIncomingArgBaseRegNum();
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int argSize = target.getFrameInfo()->getSizeOfEachArgOnStack();
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int firstVarArgOff = numFixedArgs * argSize + target.getFrameInfo()->
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getFirstIncomingArgOffset(MachineFunction::get(func), ignore);
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int fpReg = SparcV9::i6;
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int firstVarArgOff = numFixedArgs * 8 +
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SparcV9FrameInfo::FirstIncomingArgOffsetFromFP;
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mvec.push_back(BuildMI(V9::ADDi, 3).addMReg(fpReg).addSImm(firstVarArgOff).
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addRegDef(&callInstr));
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return true;
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@ -112,7 +112,6 @@ public:
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return growUp ? firstArg + relativeOffset : firstArg - relativeOffset;
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}
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private:
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/*----------------------------------------------------------------------
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This diagram shows the stack frame layout used by llc on SparcV9 V9.
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Note that only the location of automatic variables, spill area,
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@ -18,6 +18,8 @@
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#include "SparcV9Internals.h"
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#include "SparcV9RegClassInfo.h"
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#include "SparcV9RegisterInfo.h"
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#include "SparcV9FrameInfo.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MachineFunctionInfo.h"
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#include "llvm/CodeGen/MachineCodeForInstruction.h"
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@ -123,13 +125,12 @@ void InsertPrologEpilogCode::InsertPrologCode(MachineFunction &MF)
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int numArgRegs = TM.getRegInfo()->getNumOfIntArgRegs();
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if (numFixedArgs < numArgRegs) {
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const TargetFrameInfo &FI = *TM.getFrameInfo();
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bool ignore;
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int firstArgReg = TM.getRegInfo()->getUnifiedRegNum(
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TM.getRegInfo()->getRegClassIDOfType(Type::IntTy),
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SparcV9IntRegClass::i0);
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int fpReg = FI.getIncomingArgBaseRegNum();
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int argSize = FI.getSizeOfEachArgOnStack();
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int firstArgOffset= FI.getFirstIncomingArgOffset(MF,ignore);
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int fpReg = SparcV9::i6;
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int argSize = 8;
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int firstArgOffset= SparcV9FrameInfo::FirstIncomingArgOffsetFromFP;
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int nextArgOffset = firstArgOffset + numFixedArgs * argSize;
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for (int i=numFixedArgs; i < numArgRegs; ++i) {
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