class DistinctMDOperandPlaceholder

Declaration

class DistinctMDOperandPlaceholder : public Metadata { /* full declaration omitted */ };

Description

Placeholder metadata for operands of distinct MDNodes. This is a lightweight placeholder for an operand of a distinct node. It's purpose is to help track forward references when creating a distinct node. This allows distinct nodes involved in a cycle to be constructed before their operands without requiring a heavyweight temporary node with full-blown RAUW support. Each placeholder supports only a single MDNode user. Clients should pass an ID, retrieved via \a getID(), to indicate the "real" operand that this should be replaced with. While it would be possible to implement move operators, they would be fairly expensive. Leave them unimplemented to discourage their use (clients can use std::deque, std::list, BumpPtrAllocator, etc.).

Declared at: llvm/include/llvm/IR/Metadata.h:1289

Inherits from: Metadata

Member Variables

Inherited from Metadata:

protected Storage

protected ImplicitCode

protected SubclassData16 = 0

protected SubclassData32 = 0

Method Overview

• public DistinctMDOperandPlaceholder(unsigned int ID)
• public DistinctMDOperandPlaceholder()
• public DistinctMDOperandPlaceholder(llvm::DistinctMDOperandPlaceholder &&)
• public DistinctMDOperandPlaceholder(const llvm::DistinctMDOperandPlaceholder &)
• public unsigned int getID() const
• public void replaceUseWith(llvm::Metadata * MD)
• public ~DistinctMDOperandPlaceholder()

Inherited from Metadata:

• public dump
• public dump
• public getMetadataID
• protected handleChangedOperand
• public print
• public print
• public printAsOperand
• public printAsOperand

Methods

¶DistinctMDOperandPlaceholder(unsigned int ID)

Declared at: llvm/include/llvm/IR/Metadata.h:1295

Parameters

unsigned int ID

¶DistinctMDOperandPlaceholder()

Declared at: llvm/include/llvm/IR/Metadata.h:1300

¶DistinctMDOperandPlaceholder(
    llvm::DistinctMDOperandPlaceholder&&)

Declared at: llvm/include/llvm/IR/Metadata.h:1301

Parameters

llvm::DistinctMDOperandPlaceholder&&

¶DistinctMDOperandPlaceholder(
    const llvm::DistinctMDOperandPlaceholder&)

Declared at: llvm/include/llvm/IR/Metadata.h:1302

Parameters

const llvm::DistinctMDOperandPlaceholder&

¶unsigned int getID() const

Declared at: llvm/include/llvm/IR/Metadata.h:1309

¶void replaceUseWith(llvm::Metadata* MD)

Description

Replace the use of this with MD.

Declared at: llvm/include/llvm/IR/Metadata.h:1312

Parameters

llvm::Metadata* MD

¶~DistinctMDOperandPlaceholder()

Declared at: llvm/include/llvm/IR/Metadata.h:1304