CodeQL library for C/C++

codeql/cpp-all 2.1.1 (changelog, source)

Class Operand

An operand of an Instruction. The operand represents a use of the result of one instruction (the defining instruction) in another instruction (the use instruction)

Import path

import semmle.code.cpp.ir.IR

Direct supertypes

TStageOperand

Known direct subtypes

Predicates

getAnyDef	Gets the `Instruction` whose result is the value of the operand. Unlike `getDef`, this also has a result when `isDefinitionInexact` holds, which means that the resulting instruction may only partially or potentially be the value of this operand.
getDef	Gets the `Instruction` whose result is the value of the operand. Unlike `getAnyDef`, this also has no result when `isDefinitionInexact` holds, which means that the resulting instruction must always be exactly the be the value of this operand.
getDefinitionOverlap	Gets the overlap relationship between the operand’s definition and its use.
getDumpId	Gets a string that uniquely identifies this operand on its use instruction.
getDumpLabel	Gets a prefix to use when dumping the operand in an operand list.
getDumpSortOrder	Get the order in which the operand should be sorted in the operand list.
getDumpString	Gets a string describing this operand, suitable for display in IR dumps. This consists of the result ID of the instruction consumed by the operand, plus a label identifying the operand kind.
getEnclosingIRFunction	Gets the function that contains this operand.
getIRType	Gets the language-neutral type of the value consumed by this operand. This is usually the same as the result type of the definition instruction consumed by this operand. For register operands, this is always the case. For some memory operands, the operand type may be different from the definition type, such as in the case of a partial read or a read from a pointer that has been cast to a different type.
getLanguageType	Gets the type of the value consumed by this operand. This is usually the same as the result type of the definition instruction consumed by this operand. For register operands, this is always the case. For some memory operands, the operand type may be different from the definition type, such as in the case of a partial read or a read from a pointer that has been cast to a different type.
getLocation	Gets the location of the source code for this operand. By default this is where the operand is used, but some subclasses may override this using `getAnyDef()` if it makes more sense.
getSize	Gets the size of the value consumed by this operand, in bytes. If the operand does not have a known constant size, this predicate does not hold.
getType	Gets the type of the value consumed by this operand. This is usually the same as the result type of the definition instruction consumed by this operand. For register operands, this is always the case. For some memory operands, the operand type may be different from the definition type, such as in the case of a partial read or a read from a pointer that has been cast to a different type.
getUse	Gets the `Instruction` that consumes this operand.
isDefinitionInexact	Holds if the result of the definition instruction does not exactly overlap this use.
isGLValue	Holds if the value consumed by this operand is a glvalue. If this holds, the value of the operand represents the address of a location, and the type of the location is given by `getType()`. If this does not hold, the value of the operand represents a value whose type is given by `getType()`.
toString	Gets a textual representation of this element.

Charpred