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Opcode

Module Opcode

Provides Opcodes that specify the operation performed by an Instruction, as well as metadata about those opcodes, such as operand kinds and memory accesses.

Import path


                                import semmle.code.cpp.ir.implementation.Opcode

Imports

MemoryAccessKind

Provides classes that describe how a particular Instruction or its operands access memory.

Classes

ArithmeticOpcode	The `Opcode` for an `ArithmeticInstruction`.
BinaryArithmeticOpcode	The `Opcode` for a `BinaryArithmeticInstruction`.
BinaryBitwiseOpcode	The `Opcode` for a `BinaryBitwiseInstruction`.
BinaryOpcode	The `Opcode` for a `BinaryInstruction`.
BitwiseOpcode	The `Opcode` for a `BitwiseInstruction`.
BufferAccessOpcode	An opcode that accesses a memory buffer.
BuiltInOperationOpcode	The `Opcode` for a `BuiltInOperationInstruction`.
CatchOpcode	The `Opcode` for a `CatchInstruction`.
CompareOpcode	The `Opcode` for a `CompareInstruction`.
ConvertToBaseOpcode	The `Opcode` for a `ConvertToBaseInstruction`.
CopyOpcode	The `Opcode` for a `CopyInstruction`.
EntireAllocationAccessOpcode	An opcode that access an entire memory allocation.
EntireAllocationReadOpcode	An opcode that reads from an entire memory allocation.
EntireAllocationWriteOpcode	An opcode that write to an entire memory allocation.
EscapedReadOpcode	An opcode that might read from any escaped memory location.
EscapedWriteOpcode	An opcode that might write to any escaped memory location.
IndirectMemoryAccessOpcode	An opcode that accesses a single memory location via an `AddressOperand`.
IndirectReadOpcode	An opcode that reads from a single memory location via an `AddressOperand`.
IndirectWriteOpcode	An opcode that writes to a single memory location via an `AddressOperand`.
MayReadOpcode	An opcode whose read memory access is a `may` read, as opposed to a `must` read.
MayWriteOpcode	An opcode whose write memory access is a `may` write, as opposed to a `must` write.
Opcode	An opcode that specifies the operation performed by an `Instruction`.
OpcodeWithLoad	An opcode that reads a value from memory.
PointerArithmeticOpcode	The `Opcode` for a `PointerArithmeticInstruction`.
PointerOffsetOpcode	The `Opcode` for a `PointerOffsetInstruction`.
ReadSideEffectOpcode	The `Opcode` for a `ReadSideEffectInstruction`.
RelationalOpcode	The `Opcode` for a `RelationalInstruction`.
ReturnOpcode	The `Opcode` for a `ReturnInstruction`.
SideEffectOpcode	The `Opcode` for a `SideEffectInstruction`.
SizedBufferAccessOpcode	An opcode that accesses a memory buffer whose size is determined by a `BufferSizeOperand`.
SizedBufferReadOpcode	An opcode that reads from a memory buffer whose size is determined by a `BufferSizeOperand`.
SizedBufferWriteOpcode	An opcode that writes to a memory buffer whose size is determined by a `BufferSizeOperand`.
ThrowOpcode	The `Opcode` for a `ThrowInstruction`.
UnaryArithmeticOpcode	The `Opcode` for a `UnaryArithmeticInstruction`.
UnaryBitwiseOpcode	The `Opcode` for a `UnaryBitwiseInstruction`.
UnaryOpcode	The `Opcode` for a `UnaryInstruction`.
UnsizedBufferAccessOpcode	An opcode that accesses a memory buffer of unknown size.
UnsizedBufferReadOpcode	An opcode that reads from a memory buffer of unknown size.
UnsizedBufferWriteOpcode	An opcode that writes to a memory buffer of unknown size.
WriteSideEffectOpcode	The `Opcode` for a `WriteSideEffectInstruction`.

Modules

Opcode

Provides Opcodes that specify the operation performed by an Instruction.