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Added functions to compute which register, if any, to use 

for a particular argument in a list of arguments.

llvm-svn: 2315
This commit is contained in:
Vikram S. Adve 2002-04-25 04:40:24 +00:00
parent dccabec1ea
commit a77a8eee50
1 changed files with 20 additions and 15 deletions
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35
llvm/lib/Target/Sparc/SparcInternals.h
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@ -284,11 +284,16 @@ class UltraSparcRegInfo : public MachineRegInfo {
PhyRegAlloc &PRA) const;
// To find whether a particular call is to a var arg method
//
bool isVarArgCall(const MachineInstr *CallMI) const;
// Compute which register can be used for an argument, if any
//
int regNumForIntArg(bool inCallee, bool isVarArgsCall,
unsigned argNo, unsigned intArgNo, unsigned fpArgNo,
unsigned& regClassId) const;
int regNumForFPArg(unsigned RegType, bool inCallee, bool isVarArgsCall,
unsigned argNo, unsigned intArgNo, unsigned fpArgNo,
unsigned& regClassId) const;
public:
UltraSparcRegInfo(const UltraSparc &tgt);
@ -429,7 +434,7 @@ public:
//
MachineInstr * cpReg2RegMI(unsigned SrcReg, unsigned DestReg,
int RegType) const;
MachineInstr * cpReg2MemMI(unsigned SrcReg, unsigned DestPtrReg,
int Offset, int RegType) const;
@ -506,32 +511,32 @@ public:
// MachineCodeInfoForMethod object for the given method.
//
int getFirstIncomingArgOffset (MachineCodeForMethod& mcInfo,
bool& pos) const
bool& growUp) const
{
pos = true; // arguments area grows upwards
growUp = true; // arguments area grows upwards
return FirstIncomingArgOffsetFromFP;
}
int getFirstOutgoingArgOffset (MachineCodeForMethod& mcInfo,
bool& pos) const
bool& growUp) const
{
pos = true; // arguments area grows upwards
growUp = true; // arguments area grows upwards
return FirstOutgoingArgOffsetFromSP;
}
int getFirstOptionalOutgoingArgOffset(MachineCodeForMethod& mcInfo,
bool& pos)const
bool& growUp)const
{
pos = true; // arguments area grows upwards
growUp = true; // arguments area grows upwards
return FirstOptionalOutgoingArgOffsetFromSP;
}
int getFirstAutomaticVarOffset (MachineCodeForMethod& mcInfo,
bool& pos) const;
bool& growUp) const;
int getRegSpillAreaOffset (MachineCodeForMethod& mcInfo,
bool& pos) const;
bool& growUp) const;
int getTmpAreaOffset (MachineCodeForMethod& mcInfo,
bool& pos) const;
bool& growUp) const;
int getDynamicAreaOffset (MachineCodeForMethod& mcInfo,
bool& pos) const;
bool& growUp) const;
//
// These methods specify the base register used for each stack area