MCContext.h File Reference

#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/BinaryFormat/XCOFF.h"
#include "llvm/MC/MCAsmMacro.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/MC/MCPseudoProbe.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSymbolTableEntry.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MD5.h"
#include "llvm/Support/StringSaver.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <functional>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>

Go to the source code of this file.

Classes
class	llvm::MCContext
	Context object for machine code objects. More...

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.
namespace	llvm::wasm

Functions
void *	operator new (size_t Bytes, llvm::MCContext &C, size_t Alignment=8) noexcept
	Placement new for using the MCContext's allocator.
void	operator delete (void *Ptr, llvm::MCContext &C, size_t) noexcept
	Placement delete companion to the new above.
void *	operator new[] (size_t Bytes, llvm::MCContext &C, size_t Alignment=8) noexcept
	This placement form of operator new[] uses the MCContext's allocator for obtaining memory.
void	operator delete[] (void *Ptr, llvm::MCContext &C) noexcept
	Placement delete[] companion to the new[] above.

Function Documentation

operator delete()

void operator delete ( void *  Ptr, llvm::MCContext &  C, size_t    )

inlinenoexcept

Placement delete companion to the new above.

This operator is just a companion to the new above. There is no way of invoking it directly; see the new operator for more details. This operator is called implicitly by the compiler if a placement new expression using the MCContext throws in the object constructor.

Definition at line 883 of file MCContext.h.

References C, and Ptr.

operator delete[]()

void operator delete[] ( void *  Ptr, llvm::MCContext &  C  )

inlinenoexcept

Placement delete[] companion to the new[] above.

This operator is just a companion to the new[] above. There is no way of invoking it directly; see the new[] operator for more details. This operator is called implicitly by the compiler if a placement new[] expression using the MCContext throws in the object constructor.

Definition at line 917 of file MCContext.h.

References C, and Ptr.

operator new()

void * operator new ( size_t  Bytes, llvm::MCContext &  C, size_t  Alignment = 8  )

inlinenoexcept

Placement new for using the MCContext's allocator.

This placement form of operator new uses the MCContext's allocator for obtaining memory. It is a non-throwing new, which means that it returns null on error. (If that is what the allocator does. The current does, so if this ever changes, this operator will have to be changed, too.) Usage looks like this (assuming there's an MCContext 'Context' in scope):

// Default alignment (8)
IntegerLiteral *Ex = new (Context) IntegerLiteral(arguments);
// Specific alignment
IntegerLiteral *Ex2 = new (Context, 4) IntegerLiteral(arguments);

Please note that you cannot use delete on the pointer; it must be deallocated using an explicit destructor call followed by Context.Deallocate(Ptr).

Parameters

Bytes	The number of bytes to allocate. Calculated by the compiler.
C	The MCContext that provides the allocator.
Alignment	The alignment of the allocated memory (if the underlying allocator supports it).

Returns

The allocated memory. Could be NULL.

Definition at line 873 of file MCContext.h.

References C.

operator new[]()

void * operator new[] ( size_t  Bytes, llvm::MCContext &  C, size_t  Alignment = 8  )

inlinenoexcept

This placement form of operator new[] uses the MCContext's allocator for obtaining memory.

It is a non-throwing new[], which means that it returns null on error. Usage looks like this (assuming there's an MCContext 'Context' in scope):

// Default alignment (8)
char *data = new (Context) char[10];
// Specific alignment
char *data = new (Context, 4) char[10];

Please note that you cannot use delete on the pointer; it must be deallocated using an explicit destructor call followed by Context.Deallocate(Ptr).

Parameters

Bytes	The number of bytes to allocate. Calculated by the compiler.
C	The MCContext that provides the allocator.
Alignment	The alignment of the allocated memory (if the underlying allocator supports it).

Returns

The allocated memory. Could be NULL.

Definition at line 906 of file MCContext.h.

References C.