/// EmitConstantPool - Print to the current output stream assembly
/// representations of the constants in the constant pool MCP. This is
/// used to print out constants which have been "spilled to memory" by
/// the code generator.
///
void AsmPrinter::EmitConstantPool(MachineConstantPool *MCP) {
const std::vector<MachineConstantPoolEntry> &CP = MCP->getConstants();
if (CP.empty()) return;
// Some targets require 4-, 8-, and 16- byte constant literals to be placed
// in special sections.
std::vector<std::pair<MachineConstantPoolEntry,unsigned> > FourByteCPs;
std::vector<std::pair<MachineConstantPoolEntry,unsigned> > EightByteCPs;
std::vector<std::pair<MachineConstantPoolEntry,unsigned> > SixteenByteCPs;
std::vector<std::pair<MachineConstantPoolEntry,unsigned> > OtherCPs;
std::vector<std::pair<MachineConstantPoolEntry,unsigned> > TargetCPs;
for (unsigned i = 0, e = CP.size(); i != e; ++i) {
MachineConstantPoolEntry CPE = CP[i];
const Type *Ty = CPE.getType();
if (TAI->getFourByteConstantSection() &&
TM.getTargetData()->getTypeSize(Ty) == 4)
FourByteCPs.push_back(std::make_pair(CPE, i));
else if (TAI->getEightByteConstantSection() &&
TM.getTargetData()->getTypeSize(Ty) == 8)
EightByteCPs.push_back(std::make_pair(CPE, i));
else if (TAI->getSixteenByteConstantSection() &&
TM.getTargetData()->getTypeSize(Ty) == 16)
SixteenByteCPs.push_back(std::make_pair(CPE, i));
else
OtherCPs.push_back(std::make_pair(CPE, i));
}
unsigned Alignment = MCP->getConstantPoolAlignment();
EmitConstantPool(Alignment, TAI->getFourByteConstantSection(), FourByteCPs);
EmitConstantPool(Alignment, TAI->getEightByteConstantSection(), EightByteCPs);
EmitConstantPool(Alignment, TAI->getSixteenByteConstantSection(),
SixteenByteCPs);
EmitConstantPool(Alignment, TAI->getConstantPoolSection(), OtherCPs);
}
static unsigned GetConstantPoolSizeInBytes(MachineConstantPool *MCP,
const DataLayout *TD) {
const std::vector<MachineConstantPoolEntry> &Constants = MCP->getConstants();
if (Constants.empty()) return 0;
unsigned Size = 0;
for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
MachineConstantPoolEntry CPE = Constants[i];
unsigned AlignMask = CPE.getAlignment() - 1;
Size = (Size + AlignMask) & ~AlignMask;
Type *Ty = CPE.getType();
Size += TD->getTypeAllocSize(Ty);
}
return Size;
}
void SVMBlockSizeAccumulator::AddConstant(const TargetData &TD,
const MachineConstantPoolEntry &CPE)
{
AddConstant(TD.getTypeAllocSize(CPE.getType()), CPE.getAlignment());
}