CodeQL library for C/C++
codeql/cpp-all 2.1.1 (changelog, source)
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Class MayWriteOpcode

An opcode whose write memory access is a may write, as opposed to a must write.

Import path

import semmle.code.cpp.ir.IR

Direct supertypes

Indirect supertypes

Known direct subtypes

Predicates

hasMayWriteMemoryAccess

Holds if the instruction’s write memory access is a may write, as opposed to a must write.

Inherited predicates

getReadMemoryAccess

Gets the kind of memory access performed by this instruction’s MemoryOperand. Holds only for opcodes that read from memory.

from Opcode
getWriteMemoryAccess

Gets the kind of memory access performed by this instruction’s result. Holds only for opcodes with a memory result.

from Opcode
hasAddressOperand

Holds if the instruction has an AddressOperand.

from Opcode
hasBufferSizeOperand

Holds if the instruction has a BufferSizeOperand.

from Opcode
hasMayReadMemoryAccess

Holds if the instruction’s read memory access is a may read, as opposed to a must read.

from Opcode
hasOperand

Holds if the instruction must have an operand with the specified OperandTag.

from Opcode
hasOperandInternal

Holds if the instruction must have an operand with the specified OperandTag, ignoring AddressOperandTag and BufferSizeOperandTag.

from Opcode
toString

Gets a textual representation of this element.

from Opcode