LLVM API Documentation

Modules | Functions
Constants
Values
Collaboration diagram for Constants:

Modules

 Scalar constants
 Composite Constants
 Constant Expressions
 Global Values
 Global Variables
 Global Aliases
 Function values

Functions

LLVMValueRef LLVMConstNull (LLVMTypeRef Ty)
LLVMValueRef LLVMConstAllOnes (LLVMTypeRef Ty)
LLVMValueRef LLVMGetUndef (LLVMTypeRef Ty)
LLVMBool LLVMIsNull (LLVMValueRef Val)
LLVMValueRef LLVMConstPointerNull (LLVMTypeRef Ty)

Detailed Description

This section contains APIs for interacting with LLVMValueRef that correspond to llvm::Constant instances.

These functions will work for any LLVMValueRef in the llvm::Constant class hierarchy.


Function Documentation

Obtain a constant value referring to the instance of a type consisting of all ones.

This is only valid for integer types.

See also:
llvm::Constant::getAllOnesValue()

Definition at line 669 of file Core.cpp.

References llvm::Constant::getAllOnesValue(), llvm::unwrap(), and llvm::wrap().

Obtain a constant value referring to the null instance of a type.

See also:
llvm::Constant::getNullValue()

Definition at line 665 of file Core.cpp.

References llvm::Constant::getNullValue(), llvm::unwrap(), and llvm::wrap().

Obtain a constant that is a constant pointer pointing to NULL for a specified type.

Definition at line 691 of file Core.cpp.

References llvm::ConstantPointerNull::get(), and llvm::wrap().

Obtain a constant value referring to an undefined value of a type.

See also:
llvm::UndefValue::get()

Definition at line 673 of file Core.cpp.

References llvm::UndefValue::get(), llvm::unwrap(), and llvm::wrap().

Determine whether a value instance is null.

See also:
llvm::Constant::isNullValue()

Definition at line 681 of file Core.cpp.

References llvm::CallingConv::C, and llvm::unwrap().