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Optional args are no longer allocated as they are discovered. 

(This can be improved to avoid making the initial pass over the method.)
Also, ensure automatic vars and reg. spills areas are not extended
if their sizes are used for computing some other offset.

llvm-svn: 2319
This commit is contained in:
Vikram S. Adve 2002-04-25 04:47:26 +00:00
parent 40221aa74c
commit f0a992f0de
2 changed files with 28 additions and 34 deletions
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31
llvm/include/llvm/CodeGen/MachineCodeForMethod.h
View File

@ -21,17 +21,19 @@ class TargetMachine;
class MachineCodeForMethod : private Annotation {
const Function* method;
bool compiledAsLeaf;
std::hash_set<const Constant*> constantsForConstPool;
std::hash_map<const Value*, int> offsets;
const Function* method;
unsigned staticStackSize;
unsigned automaticVarsSize;
unsigned regSpillsSize;
unsigned currentOptionalArgsSize;
unsigned maxOptionalArgsSize;
unsigned maxOptionalNumArgs;
unsigned currentTmpValuesSize;
unsigned maxTmpValuesSize;
std::hash_set<const Constant*> constantsForConstPool;
std::hash_map<const Value*, int> offsets;
bool compiledAsLeaf;
bool spillsAreaFrozen;
bool automaticVarsAreaFrozen;
public:
/*ctor*/ MachineCodeForMethod(const Function* function,
@ -57,8 +59,7 @@ public:
inline unsigned getAutomaticVarsSize() const { return automaticVarsSize; }
inline unsigned getRegSpillsSize() const { return regSpillsSize; }
inline unsigned getMaxOptionalArgsSize() const { return maxOptionalArgsSize;}
inline unsigned getCurrentOptionalArgsSize() const
{ return currentOptionalArgsSize;}
inline unsigned getMaxOptionalNumArgs() const { return maxOptionalNumArgs;}
inline const std::hash_set<const Constant*>&
getConstantPoolValues() const {return constantsForConstPool;}
@ -73,10 +74,9 @@ public:
inline void markAsLeafMethod() { compiledAsLeaf = true; }
int computeOffsetforLocalVar (const TargetMachine& target,
const Value* local,
const Value* local,
unsigned int& getPaddedSize,
unsigned int sizeToUse = 0);
int allocateLocalVar (const TargetMachine& target,
const Value* local,
unsigned int sizeToUse = 0);
@ -84,16 +84,14 @@ public:
int allocateSpilledValue (const TargetMachine& target,
const Type* type);
int allocateOptionalArg (const TargetMachine& target,
const Type* type);
void resetOptionalArgs (const TargetMachine& target);
int pushTempValue (const TargetMachine& target,
unsigned int size);
void popAllTempValues (const TargetMachine& target);
void freezeSpillsArea () { spillsAreaFrozen = true; }
void freezeAutomaticVarsArea () { automaticVarsAreaFrozen=true; }
int getOffset (const Value* val) const;
// int getOffsetFromFP (const Value* val) const;
@ -120,9 +118,8 @@ private:
inline void resetTmpAreaSize() {
currentTmpValuesSize = 0;
}
inline void incrementCurrentOptionalArgsSize(int incr) {
currentOptionalArgsSize+= incr; // stack size already includes this!
}
int allocateOptionalArg (const TargetMachine& target,
const Type* type);
};
#endif

31
llvm/include/llvm/CodeGen/MachineFunction.h
View File

@ -21,17 +21,19 @@ class TargetMachine;
class MachineCodeForMethod : private Annotation {
const Function* method;
bool compiledAsLeaf;
std::hash_set<const Constant*> constantsForConstPool;
std::hash_map<const Value*, int> offsets;
const Function* method;
unsigned staticStackSize;
unsigned automaticVarsSize;
unsigned regSpillsSize;
unsigned currentOptionalArgsSize;
unsigned maxOptionalArgsSize;
unsigned maxOptionalNumArgs;
unsigned currentTmpValuesSize;
unsigned maxTmpValuesSize;
std::hash_set<const Constant*> constantsForConstPool;
std::hash_map<const Value*, int> offsets;
bool compiledAsLeaf;
bool spillsAreaFrozen;
bool automaticVarsAreaFrozen;
public:
/*ctor*/ MachineCodeForMethod(const Function* function,
@ -57,8 +59,7 @@ public:
inline unsigned getAutomaticVarsSize() const { return automaticVarsSize; }
inline unsigned getRegSpillsSize() const { return regSpillsSize; }
inline unsigned getMaxOptionalArgsSize() const { return maxOptionalArgsSize;}
inline unsigned getCurrentOptionalArgsSize() const
{ return currentOptionalArgsSize;}
inline unsigned getMaxOptionalNumArgs() const { return maxOptionalNumArgs;}
inline const std::hash_set<const Constant*>&
getConstantPoolValues() const {return constantsForConstPool;}
@ -73,10 +74,9 @@ public:
inline void markAsLeafMethod() { compiledAsLeaf = true; }
int computeOffsetforLocalVar (const TargetMachine& target,
const Value* local,
const Value* local,
unsigned int& getPaddedSize,
unsigned int sizeToUse = 0);
int allocateLocalVar (const TargetMachine& target,
const Value* local,
unsigned int sizeToUse = 0);
@ -84,16 +84,14 @@ public:
int allocateSpilledValue (const TargetMachine& target,
const Type* type);
int allocateOptionalArg (const TargetMachine& target,
const Type* type);
void resetOptionalArgs (const TargetMachine& target);
int pushTempValue (const TargetMachine& target,
unsigned int size);
void popAllTempValues (const TargetMachine& target);
void freezeSpillsArea () { spillsAreaFrozen = true; }
void freezeAutomaticVarsArea () { automaticVarsAreaFrozen=true; }
int getOffset (const Value* val) const;
// int getOffsetFromFP (const Value* val) const;
@ -120,9 +118,8 @@ private:
inline void resetTmpAreaSize() {
currentTmpValuesSize = 0;
}
inline void incrementCurrentOptionalArgsSize(int incr) {
currentOptionalArgsSize+= incr; // stack size already includes this!
}
int allocateOptionalArg (const TargetMachine& target,
const Type* type);
};
#endif