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Added functions to compute the offset of a given incoming or outgoing

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argument. These are no longer allocated as they are discovered.

llvm-svn: 2320
This commit is contained in:
Vikram S. Adve 2002-04-25 04:48:54 +00:00
parent ae709134c9
commit 5c851091e5
1 changed files with 15 additions and 7 deletions
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22
include/llvm/Target/TargetFrameInfo.h
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@ -20,6 +20,7 @@
//************************* Forward Declarations **************************/
class MachineCodeForMethod;
class TargetMachine;
//*************************** External Classes ****************************/
@ -45,21 +46,28 @@ public:
// These methods compute offsets using the frame contents for a
// particular method. The frame contents are obtained from the
// MachineCodeInfoForMethod object for the given method.
// The first few methods have default machine-independent implementations.
// The rest must be implemented by the machine-specific subclass.
//
virtual int getIncomingArgOffset (MachineCodeForMethod& mcInfo,
unsigned argNum) const;
virtual int getOutgoingArgOffset (MachineCodeForMethod& mcInfo,
unsigned argNum) const;
virtual int getFirstIncomingArgOffset (MachineCodeForMethod& mcInfo,
bool& pos) const=0;
bool& growUp) const=0;
virtual int getFirstOutgoingArgOffset (MachineCodeForMethod& mcInfo,
bool& pos) const=0;
bool& growUp) const=0;
virtual int getFirstOptionalOutgoingArgOffset (MachineCodeForMethod&,
bool& pos) const=0;
bool& growUp) const=0;
virtual int getFirstAutomaticVarOffset (MachineCodeForMethod& mcInfo,
bool& pos) const=0;
bool& growUp) const=0;
virtual int getRegSpillAreaOffset (MachineCodeForMethod& mcInfo,
bool& pos) const=0;
bool& growUp) const=0;
virtual int getTmpAreaOffset (MachineCodeForMethod& mcInfo,
bool& pos) const=0;
bool& growUp) const=0;
virtual int getDynamicAreaOffset (MachineCodeForMethod& mcInfo,
bool& pos) const=0;
bool& growUp) const=0;
//
// These methods specify the base register used for each stack area