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When we want a constant, just use it, instead of calling through layers of

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virtual methods and register name mapping functions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15690 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-08-12 17:56:01 +00:00
parent 648bc14747
commit 6845dfe07e
3 changed files with 10 additions and 10 deletions
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10
lib/Target/SparcV9/SparcV9BurgISel.cpp
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@ -19,6 +19,8 @@
#include "SparcV9InstrForest.h"
#include "SparcV9Internals.h"
#include "SparcV9TmpInstr.h"
#include "SparcV9FrameInfo.h"
#include "SparcV9RegisterInfo.h"
#include "llvm/CodeGen/IntrinsicLowering.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
@ -2779,13 +2781,11 @@ static bool CodeGenIntrinsic(Intrinsic::ID iid, CallInst &callInstr,
assert(0 && "Unknown intrinsic function call should have been lowered!");
case Intrinsic::vastart: {
// Get the address of the first incoming vararg argument on the stack
bool ignore;
Function* func = cast<Function>(callInstr.getParent()->getParent());
int numFixedArgs = func->getFunctionType()->getNumParams();
int fpReg = target.getFrameInfo()->getIncomingArgBaseRegNum();
int argSize = target.getFrameInfo()->getSizeOfEachArgOnStack();
int firstVarArgOff = numFixedArgs * argSize + target.getFrameInfo()->
getFirstIncomingArgOffset(MachineFunction::get(func), ignore);
int fpReg = SparcV9::i6;
int firstVarArgOff = numFixedArgs * 8 +
SparcV9FrameInfo::FirstIncomingArgOffsetFromFP;
mvec.push_back(BuildMI(V9::ADDi, 3).addMReg(fpReg).addSImm(firstVarArgOff).
addRegDef(&callInstr));
return true;

1
lib/Target/SparcV9/SparcV9FrameInfo.h
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@ -112,7 +112,6 @@ public:
return growUp ? firstArg + relativeOffset : firstArg - relativeOffset;
}
private:
/*----------------------------------------------------------------------
This diagram shows the stack frame layout used by llc on SparcV9 V9.
Note that only the location of automatic variables, spill area,

9
lib/Target/SparcV9/SparcV9PrologEpilogInserter.cpp
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@ -18,6 +18,8 @@
#include "SparcV9Internals.h"
#include "SparcV9RegClassInfo.h"
#include "SparcV9RegisterInfo.h"
#include "SparcV9FrameInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineFunctionInfo.h"
#include "llvm/CodeGen/MachineCodeForInstruction.h"
@ -123,13 +125,12 @@ void InsertPrologEpilogCode::InsertPrologCode(MachineFunction &MF)
int numArgRegs = TM.getRegInfo()->getNumOfIntArgRegs();
if (numFixedArgs < numArgRegs) {
const TargetFrameInfo &FI = *TM.getFrameInfo();
bool ignore;
int firstArgReg = TM.getRegInfo()->getUnifiedRegNum(
TM.getRegInfo()->getRegClassIDOfType(Type::IntTy),
SparcV9IntRegClass::i0);
int fpReg = FI.getIncomingArgBaseRegNum();
int argSize = FI.getSizeOfEachArgOnStack();
int firstArgOffset= FI.getFirstIncomingArgOffset(MF,ignore);
int fpReg = SparcV9::i6;
int argSize = 8;
int firstArgOffset= SparcV9FrameInfo::FirstIncomingArgOffsetFromFP;
int nextArgOffset = firstArgOffset + numFixedArgs * argSize;
for (int i=numFixedArgs; i < numArgRegs; ++i) {