LLVM: Scalar constants (original) (raw)

Functions in this group model LLVMValueRef instances that correspond to constants referring to scalar types. More...

Functions
LLVM_C_ABI LLVMValueRef	LLVMConstInt (LLVMTypeRef IntTy, unsigned long long N, LLVMBool SignExtend)
	Obtain a constant value for an integer type.
LLVM_C_ABI LLVMValueRef	LLVMConstIntOfArbitraryPrecision (LLVMTypeRef IntTy, unsigned NumWords, const uint64_t Words[])
	Obtain a constant value for an integer of arbitrary precision.
LLVM_C_ABI LLVMValueRef	LLVMConstIntOfString (LLVMTypeRef IntTy, const char *Text, uint8_t Radix)
	Obtain a constant value for an integer parsed from a string.
LLVM_C_ABI LLVMValueRef	LLVMConstIntOfStringAndSize (LLVMTypeRef IntTy, const char *Text, unsigned SLen, uint8_t Radix)
	Obtain a constant value for an integer parsed from a string with specified length.
LLVM_C_ABI LLVMValueRef	LLVMConstReal (LLVMTypeRef RealTy, double N)
	Obtain a constant value referring to a double floating point value.
LLVM_C_ABI LLVMValueRef	LLVMConstRealOfString (LLVMTypeRef RealTy, const char *Text)
	Obtain a constant for a floating point value parsed from a string.
LLVM_C_ABI LLVMValueRef	LLVMConstRealOfStringAndSize (LLVMTypeRef RealTy, const char *Text, unsigned SLen)
	Obtain a constant for a floating point value parsed from a string.
LLVM_C_ABI LLVMValueRef	LLVMConstFPFromBits (LLVMTypeRef Ty, const uint64_t N[])
	Obtain a constant for a floating point value from array of 64 bit values.
LLVM_C_ABI unsigned long long	LLVMConstIntGetZExtValue (LLVMValueRef ConstantVal)
	Obtain the zero extended value for an integer constant value.
LLVM_C_ABI long long	LLVMConstIntGetSExtValue (LLVMValueRef ConstantVal)
	Obtain the sign extended value for an integer constant value.
LLVM_C_ABI double	LLVMConstRealGetDouble (LLVMValueRef ConstantVal, LLVMBool *losesInfo)
	Obtain the double value for an floating point constant value.

Functions in this group model LLVMValueRef instances that correspond to constants referring to scalar types.

For integer types, the LLVMTypeRef parameter should correspond to a llvm::IntegerType instance and the returned LLVMValueRef will correspond to a llvm::ConstantInt.

For floating point types, the LLVMTypeRef returned corresponds to a llvm::ConstantFP.

◆ LLVMConstFPFromBits()

Obtain a constant for a floating point value from array of 64 bit values.

The length of the array N must be ceildiv(bits, 64), where bits is the scalar size in bits of the floating-point type.

Definition at line 1580 of file Core.cpp.

References llvm::divideCeil(), N, T, llvm::unwrap(), and llvm::wrap().

◆ LLVMConstInt()

Obtain a constant value for an integer type.

The returned value corresponds to a llvm::ConstantInt.

IntTy	Integer type to obtain value of.
N	The value the returned instance should refer to.
SignExtend	Whether to sign extend the produced value.

◆ LLVMConstIntGetSExtValue()

◆ LLVMConstIntGetZExtValue()

◆ LLVMConstIntOfArbitraryPrecision()

◆ LLVMConstIntOfString()

Obtain a constant value for an integer parsed from a string.

A similar API, LLVMConstIntOfStringAndSize is also available. If the string's length is available, it is preferred to call that function instead.

◆ LLVMConstIntOfStringAndSize()

Obtain a constant value for an integer parsed from a string with specified length.

◆ LLVMConstReal()

◆ LLVMConstRealGetDouble()

◆ LLVMConstRealOfString()

Obtain a constant for a floating point value parsed from a string.

A similar API, LLVMConstRealOfStringAndSize is also available. It should be used if the input string's length is known.

Definition at line 1571 of file Core.cpp.

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

◆ LLVMConstRealOfStringAndSize()

Obtain a constant for a floating point value parsed from a string.

References C(), LLVM_C_ABI, and N.