¶Optional<llvm::APInt> getAllocSize(
    const llvm::CallBase* CB,
    const llvm::TargetLibraryInfo* TLI,
    function_ref<const llvm::Value*(
        const llvm::Value*)> Mapper =
        [](const llvm::Value* V) { return V; })

Description

Return the size of the requested allocation. With a trivial mapper, this is similar to calling getObjectSize(..., Exact), but without looking through calls that return their argument. A mapper function can be used to replace one Value* (operand to the allocation) with another. This is useful when doing abstract interpretation.

Declared at: llvm/include/llvm/Analysis/MemoryBuiltins.h:110

Parameters

const llvm::CallBase* CB

const llvm::TargetLibraryInfo* TLI

function_ref<const llvm::Value*( const llvm::Value*)> Mapper = [](const llvm::Value *V) { return V; }