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refactor code to be static functions instead of methods on AsmPrinter.

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This fixes some bugs handling address spaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93891 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-01-19 19:10:44 +00:00
parent 8a6d7ac88f
commit 91093ecf0f
2 changed files with 48 additions and 56 deletions
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18
include/llvm/CodeGen/AsmPrinter.h
View File

@ -370,7 +370,13 @@ namespace llvm {
/// MachineBasicBlock, an alignment (if present) and a comment describing
/// it if appropriate.
void EmitBasicBlockStart(const MachineBasicBlock *MBB) const;
protected:
// Data emission.
/// EmitGlobalConstant - Print a general LLVM constant to the .s file.
void EmitGlobalConstant(const Constant* CV, unsigned AddrSpace = 0);
/// EmitZeros - Emit a block of zeros.
///
void EmitZeros(uint64_t NumZeros, unsigned AddrSpace = 0) const;
@ -379,13 +385,11 @@ namespace llvm {
///
virtual void EmitString(const ConstantArray *CVA) const;
protected:
/// EmitConstantValueOnly - Print out the specified constant, without a
/// storage class. Only constants of first-class type are allowed here.
void EmitConstantValueOnly(const Constant *CV);
/// EmitGlobalConstant - Print a general LLVM constant to the .s file.
void EmitGlobalConstant(const Constant* CV, unsigned AddrSpace = 0);
virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV);
/// processDebugLoc - Processes the debug information of each machine
@ -427,12 +431,8 @@ namespace llvm {
private:
void EmitLLVMUsedList(Constant *List);
void EmitXXStructorList(Constant *List);
void EmitGlobalConstantStruct(const ConstantStruct* CVS,
unsigned AddrSpace);
void EmitGlobalConstantArray(const ConstantArray* CVA, unsigned AddrSpace);
void EmitGlobalConstantVector(const ConstantVector* CP);
void EmitGlobalConstantFP(const ConstantFP* CFP, unsigned AddrSpace);
void EmitGlobalConstantLargeInt(const ConstantInt* CI, unsigned AddrSpace);
void EmitGlobalConstantFP(const ConstantFP *CFP, unsigned AddrSpace);
GCMetadataPrinter *GetOrCreateGCPrinter(GCStrategy *C);
};
}

86
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
View File

@ -1101,57 +1101,56 @@ void AsmPrinter::EmitString(const ConstantArray *CVA) const {
O << '\n';
}
void AsmPrinter::EmitGlobalConstantArray(const ConstantArray *CVA,
unsigned AddrSpace) {
if (CVA->isString()) {
EmitString(CVA);
static void EmitGlobalConstantArray(const ConstantArray *CA, unsigned AddrSpace,
AsmPrinter &AP) {
if (AddrSpace == 0 && CA->isString()) {
AP.EmitString(CA);
} else { // Not a string. Print the values in successive locations
for (unsigned i = 0, e = CVA->getNumOperands(); i != e; ++i)
EmitGlobalConstant(CVA->getOperand(i), AddrSpace);
for (unsigned i = 0, e = CA->getNumOperands(); i != e; ++i)
AP.EmitGlobalConstant(CA->getOperand(i), AddrSpace);
}
}
void AsmPrinter::EmitGlobalConstantVector(const ConstantVector *CP) {
const VectorType *PTy = CP->getType();
for (unsigned I = 0, E = PTy->getNumElements(); I < E; ++I)
EmitGlobalConstant(CP->getOperand(I));
static void EmitGlobalConstantVector(const ConstantVector *CV,
unsigned AddrSpace, AsmPrinter &AP) {
const VectorType *VTy = CV->getType();
for (unsigned i = 0, e = VTy->getNumElements(); i != e; ++i)
AP.EmitGlobalConstant(CV->getOperand(i), AddrSpace);
}
void AsmPrinter::EmitGlobalConstantStruct(const ConstantStruct *CVS,
unsigned AddrSpace) {
static void EmitGlobalConstantStruct(const ConstantStruct *CS,
unsigned AddrSpace, AsmPrinter &AP) {
// Print the fields in successive locations. Pad to align if needed!
const TargetData *TD = TM.getTargetData();
unsigned Size = TD->getTypeAllocSize(CVS->getType());
const StructLayout *cvsLayout = TD->getStructLayout(CVS->getType());
uint64_t sizeSoFar = 0;
for (unsigned i = 0, e = CVS->getNumOperands(); i != e; ++i) {
const Constant* field = CVS->getOperand(i);
const TargetData *TD = AP.TM.getTargetData();
unsigned Size = TD->getTypeAllocSize(CS->getType());
const StructLayout *cvsLayout = TD->getStructLayout(CS->getType());
uint64_t SizeSoFar = 0;
for (unsigned i = 0, e = CS->getNumOperands(); i != e; ++i) {
const Constant *field = CS->getOperand(i);
// Check if padding is needed and insert one or more 0s.
uint64_t fieldSize = TD->getTypeAllocSize(field->getType());
uint64_t padSize = ((i == e-1 ? Size : cvsLayout->getElementOffset(i+1))
- cvsLayout->getElementOffset(i)) - fieldSize;
sizeSoFar += fieldSize + padSize;
SizeSoFar += fieldSize + padSize;
// Now print the actual field value.
EmitGlobalConstant(field, AddrSpace);
AP.EmitGlobalConstant(field, AddrSpace);
// Insert padding - this may include padding to increase the size of the
// current field up to the ABI size (if the struct is not packed) as well
// as padding to ensure that the next field starts at the right offset.
EmitZeros(padSize, AddrSpace);
AP.EmitZeros(padSize, AddrSpace);
}
assert(sizeSoFar == cvsLayout->getSizeInBytes() &&
assert(SizeSoFar == cvsLayout->getSizeInBytes() &&
"Layout of constant struct may be incorrect!");
}
void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP,
void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP,
unsigned AddrSpace) {
// FP Constants are printed as integer constants to avoid losing
// precision...
LLVMContext &Context = CFP->getContext();
const TargetData *TD = TM.getTargetData();
const TargetData &TD = *TM.getTargetData();
if (CFP->getType()->isDoubleTy()) {
double Val = CFP->getValueAPF().convertToDouble(); // for comment only
uint64_t i = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
@ -1162,7 +1161,7 @@ void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP,
O << MAI->getCommentString() << " double " << Val;
}
O << '\n';
} else if (TD->isBigEndian()) {
} else if (TD.isBigEndian()) {
O << MAI->getData32bitsDirective(AddrSpace) << unsigned(i >> 32);
if (VerboseAsm) {
O.PadToColumn(MAI->getCommentColumn());
@ -1218,7 +1217,7 @@ void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP,
bool ignored;
DoubleVal.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
&ignored);
if (TD->isBigEndian()) {
if (TD.isBigEndian()) {
O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[1]);
if (VerboseAsm) {
O.PadToColumn(MAI->getCommentColumn());
@ -1290,8 +1289,9 @@ void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP,
}
O << '\n';
}
EmitZeros(TD->getTypeAllocSize(Type::getX86_FP80Ty(Context)) -
TD->getTypeStoreSize(Type::getX86_FP80Ty(Context)), AddrSpace);
LLVMContext &Context = CFP->getContext();
EmitZeros(TD.getTypeAllocSize(Type::getX86_FP80Ty(Context)) -
TD.getTypeStoreSize(Type::getX86_FP80Ty(Context)), AddrSpace);
return;
}
@ -1300,7 +1300,7 @@ void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP,
// api needed to prevent premature destruction
APInt api = CFP->getValueAPF().bitcastToAPInt();
const uint64_t *p = api.getRawData();
if (TD->isBigEndian()) {
if (TD.isBigEndian()) {
O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0] >> 32);
if (VerboseAsm) {
O.PadToColumn(MAI->getCommentColumn());
@ -1420,20 +1420,14 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, unsigned AddrSpace) {
if (CV->isNullValue() || isa<UndefValue>(CV))
return EmitZeros(Size, AddrSpace);
if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV)) {
EmitGlobalConstantArray(CVA, AddrSpace);
return;
}
if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV))
return EmitGlobalConstantArray(CVA, AddrSpace, *this);
if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV)) {
EmitGlobalConstantStruct(CVS, AddrSpace);
return;
}
if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV))
return EmitGlobalConstantStruct(CVS, AddrSpace, *this);
if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
EmitGlobalConstantFP(CFP, AddrSpace);
return;
}
if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV))
return EmitGlobalConstantFP(CFP, AddrSpace);
if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
// If we can directly emit an 8-byte constant, do it.
@ -1450,10 +1444,8 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, unsigned AddrSpace) {
}
}
if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
EmitGlobalConstantVector(CP);
return;
}
if (const ConstantVector *V = dyn_cast<ConstantVector>(CV))
return EmitGlobalConstantVector(V, AddrSpace, *this);
printDataDirective(type, AddrSpace);
EmitConstantValueOnly(CV);