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Add support to print constant arrays and structures. 

Align data larger than an L1 cache line on L1 cache line boundary.

llvm-svn: 1228
This commit is contained in:
Vikram S. Adve 2001-11-09 02:19:29 +00:00
parent bc23cf5521
commit 2ccb900add
1 changed files with 68 additions and 26 deletions
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92
llvm/lib/Target/Sparc/EmitAssembly.cpp
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@ -59,7 +59,8 @@ private :
void emitMachineInst(const MachineInstr *MI);
void printGlobalVariable(const GlobalVariable* GV);
void printConstant(const ConstPoolVal* CV, string valID = string(""));
void printSingleConstant(const ConstPoolVal* CV, string valID = string(""));
void printConstant( const ConstPoolVal* CV, string valID = string(""));
unsigned int printOperands(const MachineInstr *MI, unsigned int opNum);
void printOneOperand(const MachineOperand &Op);
@ -187,8 +188,9 @@ SparcAsmPrinter::OpIsMemoryAddressBase(const MachineInstr *MI,
#define PrintOp1PlusOp2(Op1, Op2) \
printOneOperand(Op1); toAsm << "+"; printOneOperand(Op2);
printOneOperand(Op1); \
toAsm << "+"; \
printOneOperand(Op2);
unsigned int
SparcAsmPrinter::printOperands(const MachineInstr *MI,
@ -347,7 +349,8 @@ ArrayTypeIsString(ArrayType* arrayType)
arrayType->getElementType() == Type::SByteTy);
}
inline const string TypeToDataDirective(const Type* type)
inline const string
TypeToDataDirective(const Type* type)
{
switch(type->getPrimitiveID())
{
@ -373,8 +376,9 @@ inline const string TypeToDataDirective(const Type* type)
}
}
inline unsigned int ConstantToSize(const ConstPoolVal* CV,
const TargetMachine& target) {
inline unsigned int
ConstantToSize(const ConstPoolVal* CV, const TargetMachine& target)
{
if (ConstPoolArray* AV = dyn_cast<ConstPoolArray>(CV))
if (ArrayTypeIsString((ArrayType*) CV->getType()))
return 1 + AV->getNumOperands();
@ -390,19 +394,25 @@ unsigned int TypeToSize(const Type* type, const TargetMachine& target)
}
// Align data larger than one L1 cache line on L1 cache line boundaries.
// Align all smaller types on the next higher 2^x boundary (4, 8, ...).
//
inline unsigned int
TypeToAlignment(const Type* type, const TargetMachine& target)
{
if (type->getPrimitiveID() == Type::ArrayTyID &&
ArrayTypeIsString((ArrayType*) type))
return target.findOptimalStorageSize(Type::LongTy);
return target.findOptimalStorageSize(type);
unsigned int typeSize = target.findOptimalStorageSize(type);
unsigned short cacheLineSize = target.getCacheInfo().getCacheLineSize(1);
if (typeSize > (int) cacheLineSize / 2)
return cacheLineSize;
else
for (unsigned sz=1; /*no condition*/; sz *= 2)
if (sz >= typeSize)
return sz;
}
void
SparcAsmPrinter::printConstant(const ConstPoolVal* CV, string valID)
SparcAsmPrinter::printSingleConstant(const ConstPoolVal* CV,string valID)
{
if (valID.length() == 0)
valID = getID(CV);
@ -412,21 +422,12 @@ SparcAsmPrinter::printConstant(const ConstPoolVal* CV, string valID)
CV->getType() != Type::LabelTy &&
"Unexpected type for ConstPoolVal");
toAsm << "\t.align\t" << TypeToAlignment(CV->getType(), Target)
<< endl;
toAsm << valID << ":" << endl;
assert((! isa<ConstPoolArray>( CV) && ! isa<ConstPoolStruct>(CV))
&& "Collective types should be handled outside this function");
toAsm << "\t"
<< TypeToDataDirective(CV->getType()) << "\t";
if (ConstPoolArray *CPA = dyn_cast<ConstPoolArray>(CV))
if (isStringCompatible(CPA))
{
toAsm << getAsCString(CPA) << endl;
return;
}
if (CV->getType()->isPrimitiveType())
{
if (CV->getType() == Type::FloatTy || CV->getType() == Type::DoubleTy)
@ -446,13 +447,54 @@ SparcAsmPrinter::printConstant(const ConstPoolVal* CV, string valID)
}
else
{
assert(0 && "Cannot yet print non-primitive constants to assembly");
// toAsm << CV->getStrValue() << endl;
assert(0 && "Unknown elementary type for constant");
}
}
void
SparcAsmPrinter::printConstant(const ConstPoolVal* CV, string valID)
{
if (valID.length() == 0)
valID = getID(CV);
assert(CV->getType() != Type::VoidTy &&
CV->getType() != Type::TypeTy &&
CV->getType() != Type::LabelTy &&
"Unexpected type for ConstPoolVal");
toAsm << "\t.align\t" << TypeToAlignment(CV->getType(), Target)
<< endl;
// Print .size and .type only if it is not a string.
ConstPoolArray *CPA = dyn_cast<ConstPoolArray>(CV);
if (CPA && isStringCompatible(CPA))
{ // print it as a string and return
toAsm << valID << ":" << endl;
toAsm << "\t" << TypeToDataDirective(CV->getType()) << "\t"
<< getAsCString(CPA) << endl;
return;
}
toAsm << "\t.type" << "\t" << valID << ",#object" << endl;
toAsm << "\t.size" << "\t" << valID << ","
<< ConstantToSize(CV, Target) << endl;
toAsm << valID << ":" << endl;
if (CPA)
{ // Not a string. Print the values in successive locations
const vector<Use>& constValues = CPA->getValues();
for (unsigned i=1; i < constValues.size(); i++)
this->printSingleConstant(cast<ConstPoolVal>(constValues[i].get()));
}
else if (ConstPoolStruct *CPS = dyn_cast<ConstPoolStruct>(CV))
{ // Print the fields in successive locations
const vector<Use>& constValues = CPA->getValues();
for (unsigned i=1; i < constValues.size(); i++)
this->printSingleConstant(cast<ConstPoolVal>(constValues[i].get()));
}
else
this->printSingleConstant(CV, valID);
}