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LLVM
3.7.0
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The MachineConstantPool class keeps track of constants referenced by a function which must be spilled to memory. More...
#include <MachineConstantPool.h>
Public Member Functions | |
| MachineConstantPool (const DataLayout &DL) | |
| The only constructor. More... | |
| ~MachineConstantPool () | |
| unsigned | getConstantPoolAlignment () const |
| getConstantPoolAlignment - Return the alignment required by the whole constant pool, of which the first element must be aligned. More... | |
| unsigned | getConstantPoolIndex (const Constant *C, unsigned Alignment) |
| getConstantPoolIndex - Create a new entry in the constant pool or return an existing one. More... | |
| unsigned | getConstantPoolIndex (MachineConstantPoolValue *V, unsigned Alignment) |
| bool | isEmpty () const |
| isEmpty - Return true if this constant pool contains no constants. More... | |
| const std::vector < MachineConstantPoolEntry > & | getConstants () const |
| void | print (raw_ostream &OS) const |
| print - Used by the MachineFunction printer to print information about constant pool objects. More... | |
| void | dump () const |
| dump - Call print(cerr) to be called from the debugger. More... | |
The MachineConstantPool class keeps track of constants referenced by a function which must be spilled to memory.
This is used for constants which are unable to be used directly as operands to instructions, which typically include floating point and large integer constants.
Instructions reference the address of these constant pool constants through the use of MO_ConstantPoolIndex values. When emitting assembly or machine code, these virtual address references are converted to refer to the address of the function constant pool values. The machine constant pool.
Definition at line 137 of file MachineConstantPool.h.
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inlineexplicit |
The only constructor.
Definition at line 148 of file MachineConstantPool.h.
| MachineConstantPool::~MachineConstantPool | ( | ) |
Definition at line 842 of file MachineFunction.cpp.
| void MachineConstantPool::dump | ( | ) | const |
dump - Call print(cerr) to be called from the debugger.
Definition at line 951 of file MachineFunction.cpp.
References llvm::dbgs(), and print().
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inline |
getConstantPoolAlignment - Return the alignment required by the whole constant pool, of which the first element must be aligned.
Definition at line 154 of file MachineConstantPool.h.
getConstantPoolIndex - Create a new entry in the constant pool or return an existing one.
Create a new entry in the constant pool or return an existing one.
User must specify the minimum required alignment for the object.
User must specify the log2 of the minimum required alignment for the object.
Definition at line 897 of file MachineFunction.cpp.
References CanShareConstantPoolEntry().
Referenced by llvm::ARMFrameLowering::adjustForSegmentedStacks(), duplicateCPV(), llvm::ARMBaseRegisterInfo::emitLoadConstPool(), emitThumb1LoadConstPool(), emitThumb2LoadConstPool(), llvm::X86InstrInfo::foldMemoryOperandImpl(), and llvm::XCoreInstrInfo::loadImmediate().
| unsigned MachineConstantPool::getConstantPoolIndex | ( | MachineConstantPoolValue * | V, |
| unsigned | Alignment | ||
| ) |
Definition at line 917 of file MachineFunction.cpp.
References llvm::MachineConstantPoolValue::getExistingMachineCPValue().
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inline |
Definition at line 165 of file MachineConstantPool.h.
Referenced by duplicateCPV(), llvm::AsmPrinter::EmitConstantPool(), llvm::ARMAsmPrinter::EmitInstruction(), llvm::MipsAsmPrinter::EmitInstruction(), getConstantFromPool(), llvm::X86AsmPrinter::GetCPISymbol(), llvm::SystemZConstantPoolValue::getExistingMachineCPValue(), llvm::ARMConstantPoolValue::getExistingMachineCPValueImpl(), and llvm::ARMBaseInstrInfo::produceSameValue().
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inline |
isEmpty - Return true if this constant pool contains no constants.
Definition at line 163 of file MachineConstantPool.h.
| void MachineConstantPool::print | ( | raw_ostream & | OS | ) | const |
print - Used by the MachineFunction printer to print information about constant pool objects.
Implemented in MachineFunction.cpp
Definition at line 935 of file MachineFunction.cpp.
Referenced by dump().
1.8.6