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C bindings for libLLVMCore.a and libLLVMBitWriter.a.

Browse Source 
- The naming prefix is LLVM.
- All types are represented using opaque references.
- Functions are not named LLVM{Type}{Method}; the names became
  unreadable goop. Instead, they are named LLVM{ImperativeSentence}.
- Where an attribute only appears once in the class hierarchy (e.g.,
  linkage only applies to values; parameter types only apply to
  function types), the class is omitted from identifiers for
  brevity. Tastes like methods.
- Strings are C strings or string/length tuples on a case-by-case
  basis.
- APIs which give the caller ownership of an object are not mapped
  (removeFromParent, certain constructor overloads). This keeps
  keep memory management as simple as possible.

For each library with bindings:

  llvm-c/<LIB>.h       - Declares the bindings.
  lib/<LIB>/<LIB>.cpp  - Implements the bindings.

So just link with the library of your choice and use the C header
instead of the C++ one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42077 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gordon Henriksen 2007-09-18 03:18:57 +00:00
parent 04bdf20ec1
commit 8b94a14a78
5 changed files with 730 additions and 0 deletions
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42
include/llvm-c/BitWriter.h Normal file
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/*===-- llvm-c/BitWriter.h - BitWriter Library C Interface ------*- C++ -*-===*\
|* *|
|* The LLVM Compiler Infrastructure *|
|* *|
|* This file was developed by Gordon Henriksen and is distributed under the *|
|* University of Illinois Open Source License. See LICENSE.TXT for details. *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This header declares the C interface to libLLVMBitWriter.a, which *|
|* implements output of the LLVM bitcode format. *|
|* *|
|* Many exotic languages can interoperate with C code but have a harder time *|
|* with C++ due to name mangling. So in addition to C, this interface enables *|
|* tools written in such languages. *|
|* *|
\*===----------------------------------------------------------------------===*/
#ifndef LLVM_C_BITCODEWRITER_H
#define LLVM_C_BITCODEWRITER_H
#include "llvm-c/Core.h"
#ifdef __cplusplus
extern "C" {
#endif
/*===-- Operations on modules ---------------------------------------------===*/
/* Writes a module to an open file descriptor. Returns 0 on success. */
int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int Handle);
/* Writes a module to the specified path. Returns 0 on success. */
int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path);
#ifdef __cplusplus
}
#endif
#endif

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/*===-- llvm-c/Core.h - Core Library C Interface ------------------*- C -*-===*\
|* *|
|* The LLVM Compiler Infrastructure *|
|* *|
|* This file was developed by Gordon Henriksen and is distributed under the *|
|* University of Illinois Open Source License. See LICENSE.TXT for details. *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This header declares the C interface to libLLVMCore.a, which implements *|
|* the LLVM intermediate representation. *|
|* *|
|* LLVM uses a polymorphic type hierarchy which C cannot represent, therefore *|
|* parameters must be passed as base types. Despite the declared types, most *|
|* of the functions provided operate only on branches of the type hierarchy. *|
|* The declared parameter names are descriptive and specify which type is *|
|* required. Additionally, each type hierarchy is documented along with the *|
|* functions that operate upon it. For more detail, refer to LLVM's C++ code. *|
|* If in doubt, refer to Core.cpp, which performs paramter downcasts in the *|
|* form unwrap<RequiredType>(Param). *|
|* *|
|* Many exotic languages can interoperate with C code but have a harder time *|
|* with C++ due to name mangling. So in addition to C, this interface enables *|
|* tools written in such languages. *|
|* *|
\*===----------------------------------------------------------------------===*/
#ifndef LLVM_C_CORE_H
#define LLVM_C_CORE_H
#ifdef __cplusplus
extern "C" {
#endif
/* Opaque types. */
typedef struct LLVMOpaqueModule *LLVMModuleRef;
typedef struct LLVMOpaqueType *LLVMTypeRef;
typedef struct LLVMOpaqueValue *LLVMValueRef;
typedef enum {
LLVMVoidTypeKind = 0, /* type with no size */
LLVMFloatTypeKind, /* 32 bit floating point type */
LLVMDoubleTypeKind, /* 64 bit floating point type */
LLVMX86_FP80TypeKind, /* 80 bit floating point type (X87) */
LLVMFP128TypeKind, /* 128 bit floating point type (112-bit mantissa) */
LLVMPPC_FP128TypeKind, /* 128 bit floating point type (two 64-bits) */
LLVMLabelTypeKind, /* Labels */
LLVMIntegerTypeKind, /* Arbitrary bit width integers */
LLVMFunctionTypeKind, /* Functions */
LLVMStructTypeKind, /* Structures */
LLVMArrayTypeKind, /* Arrays */
LLVMPointerTypeKind, /* Pointers */
LLVMOpaqueTypeKind, /* Opaque: type with unknown structure */
LLVMVectorTypeKind /* SIMD 'packed' format, or other vector type */
} LLVMTypeKind;
typedef enum {
LLVMExternalLinkage = 0,/* Externally visible function */
LLVMLinkOnceLinkage, /* Keep one copy of function when linking (inline) */
LLVMWeakLinkage, /* Keep one copy of function when linking (weak) */
LLVMAppendingLinkage, /* Special purpose, only applies to global arrays */
LLVMInternalLinkage, /* Rename collisions when linking (static functions)*/
LLVMDLLImportLinkage, /* Function to be imported from DLL */
LLVMDLLExportLinkage, /* Function to be accessible from DLL */
LLVMExternalWeakLinkage,/* ExternalWeak linkage description */
LLVMGhostLinkage /* Stand-in functions for streaming fns from bitcode*/
} LLVMLinkage;
typedef enum {
LLVMDefaultVisibility = 0, /* The GV is visible */
LLVMHiddenVisibility, /* The GV is hidden */
LLVMProtectedVisibility /* The GV is protected */
} LLVMVisibility;
/*===-- Modules -----------------------------------------------------------===*/
/* Create and destroy modules. */
LLVMModuleRef LLVMModuleCreateWithName(const char *ModuleID);
void LLVMDisposeModule(LLVMModuleRef M);
/* Same as Module::addTypeName. */
int LLVMAddTypeName(LLVMModuleRef M, const char *Name, LLVMTypeRef Ty);
int LLVMDeleteTypeName(LLVMModuleRef M, const char *Name);
/*===-- Types --------------------------------------------------------------===*/
/* LLVM types conform to the following hierarchy:
*
* types:
* integer type
* real type
* function type
* sequence types:
* array type
* pointer type
* vector type
* void type
* label type
* opaque type
*/
LLVMTypeKind LLVMGetTypeKind(LLVMTypeRef Ty);
void LLVMRefineAbstractType(LLVMTypeRef AbstractType, LLVMTypeRef ConcreteType);
/* Operations on integer types */
LLVMTypeRef LLVMInt1Type();
LLVMTypeRef LLVMInt8Type();
LLVMTypeRef LLVMInt16Type();
LLVMTypeRef LLVMInt32Type();
LLVMTypeRef LLVMInt64Type();
LLVMTypeRef LLVMCreateIntegerType(unsigned NumBits);
unsigned LLVMGetIntegerTypeWidth(LLVMTypeRef IntegerTy);
/* Operations on real types */
LLVMTypeRef LLVMFloatType();
LLVMTypeRef LLVMDoubleType();
LLVMTypeRef LLVMX86FP80Type();
LLVMTypeRef LLVMFP128Type();
LLVMTypeRef LLVMPPCFP128Type();
/* Operations on function types */
LLVMTypeRef LLVMCreateFunctionType(LLVMTypeRef ReturnType,
LLVMTypeRef *ParamTypes, unsigned ParamCount,
int IsVarArg);
int LLVMIsFunctionVarArg(LLVMTypeRef FunctionTy);
LLVMTypeRef LLVMGetFunctionReturnType(LLVMTypeRef FunctionTy);
unsigned LLVMGetFunctionParamCount(LLVMTypeRef FunctionTy);
void LLVMGetFunctionParamTypes(LLVMTypeRef FunctionTy, LLVMTypeRef *Dest);
/* Operations on struct types */
LLVMTypeRef LLVMCreateStructType(LLVMTypeRef *ElementTypes,
unsigned ElementCount, int Packed);
unsigned LLVMGetStructElementCount(LLVMTypeRef StructTy);
void LLVMGetStructElementTypes(LLVMTypeRef StructTy, LLVMTypeRef *Dest);
int LLVMIsPackedStruct(LLVMTypeRef StructTy);
/* Operations on array, pointer, and vector types (sequence types) */
LLVMTypeRef LLVMCreateArrayType(LLVMTypeRef ElementType, unsigned ElementCount);
LLVMTypeRef LLVMCreatePointerType(LLVMTypeRef ElementType);
LLVMTypeRef LLVMCreateVectorType(LLVMTypeRef ElementType,unsigned ElementCount);
LLVMTypeRef LLVMGetElementType(LLVMTypeRef Ty);
unsigned LLVMGetArrayLength(LLVMTypeRef ArrayTy);
unsigned LLVMGetVectorSize(LLVMTypeRef VectorTy);
/* Operations on other types */
LLVMTypeRef LLVMVoidType();
LLVMTypeRef LLVMLabelType();
LLVMTypeRef LLVMCreateOpaqueType();
/*===-- Values ------------------------------------------------------------===*/
/* The bulk of LLVM's object model consists of values, which comprise a very
* rich type hierarchy.
*
* values:
* constants:
* scalar constants
* composite contants
* globals:
* global variable
* function
* alias
*/
/* Operations on all values */
LLVMTypeRef LLVMGetTypeOfValue(LLVMValueRef Val);
const char *LLVMGetValueName(LLVMValueRef Val);
void LLVMSetValueName(LLVMValueRef Val, const char *Name);
/* Operations on constants of any type */
LLVMValueRef LLVMGetNull(LLVMTypeRef Ty); /* all zeroes */
LLVMValueRef LLVMGetAllOnes(LLVMTypeRef Ty); /* only for int/vector */
LLVMValueRef LLVMGetUndef(LLVMTypeRef Ty);
int LLVMIsNull(LLVMValueRef Val);
/* Operations on scalar constants */
LLVMValueRef LLVMGetIntConstant(LLVMTypeRef IntTy, unsigned long long N,
int SignExtend);
LLVMValueRef LLVMGetRealConstant(LLVMTypeRef RealTy, double N);
/* Operations on composite constants */
LLVMValueRef LLVMGetStringConstant(const char *Str, unsigned Length,
int DontNullTerminate);
LLVMValueRef LLVMGetArrayConstant(LLVMTypeRef ArrayTy,
LLVMValueRef *ConstantVals, unsigned Length);
LLVMValueRef LLVMGetStructConstant(LLVMValueRef *ConstantVals, unsigned Count,
int packed);
LLVMValueRef LLVMGetVectorConstant(LLVMValueRef *ScalarConstantVals,
unsigned Size);
/* Operations on global variables, functions, and aliases (globals) */
int LLVMIsDeclaration(LLVMValueRef Global);
LLVMLinkage LLVMGetLinkage(LLVMValueRef Global);
void LLVMSetLinkage(LLVMValueRef Global, LLVMLinkage Linkage);
const char *LLVMGetSection(LLVMValueRef Global);
void LLVMSetSection(LLVMValueRef Global, const char *Section);
LLVMVisibility LLVMGetVisibility(LLVMValueRef Global);
void LLVMSetVisibility(LLVMValueRef Global, LLVMVisibility Viz);
unsigned LLVMGetAlignment(LLVMValueRef Global);
void LLVMSetAlignment(LLVMValueRef Global, unsigned Bytes);
/* Operations on global variables */
LLVMValueRef LLVMAddGlobal(LLVMModuleRef M, LLVMTypeRef Ty, const char *Name);
void LLVMDeleteGlobal(LLVMValueRef GlobalVar);
int LLVMHasInitializer(LLVMValueRef GlobalVar);
LLVMValueRef LLVMGetInitializer(LLVMValueRef GlobalVar);
void LLVMSetInitializer(LLVMValueRef GlobalVar, LLVMValueRef ConstantVal);
int LLVMIsThreadLocal(LLVMValueRef GlobalVar);
void LLVMSetThreadLocal(LLVMValueRef GlobalVar, int IsThreadLocal);
#ifdef __cplusplus
}
#endif
#endif

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//===-- Support/CHelpers.h - Utilities for writing C bindings -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These opaque reference<-->pointer conversions are shorter and more tightly
// typed than writing the casts by hand in C bindings. In assert builds, they
// will do type checking.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_CHELPERS_H
#define LLVM_SUPPORT_CHELPERS_H
#include "llvm/Module.h"
#include "llvm/Type.h"
#include "llvm/Value.h"
typedef struct LLVMOpaqueModule *LLVMModuleRef;
typedef struct LLVMOpaqueType *LLVMTypeRef;
typedef struct LLVMOpaqueValue *LLVMValueRef;
namespace llvm {
/// Opaque module conversions
///
inline Module *unwrap(LLVMModuleRef M) {
return reinterpret_cast<Module*>(M);
}
inline LLVMModuleRef wrap(Module *M) {
return reinterpret_cast<LLVMModuleRef>(M);
}
/// Opaque type conversions
///
inline Type *unwrap(LLVMTypeRef Ty) {
return reinterpret_cast<Type*>(Ty);
}
template<typename T>
inline T *unwrap(LLVMTypeRef Ty) {
return cast<T>(unwrap(Ty));
}
inline Type **unwrap(LLVMTypeRef* Tys) {
return reinterpret_cast<Type**>(Tys);
}
inline LLVMTypeRef wrap(const Type *Ty) {
return reinterpret_cast<LLVMTypeRef>(const_cast<Type*>(Ty));
}
inline LLVMTypeRef *wrap(const Type **Tys) {
return reinterpret_cast<LLVMTypeRef*>(const_cast<Type**>(Tys));
}
/// Opaque value conversions
///
inline Value *unwrap(LLVMValueRef Val) {
return reinterpret_cast<Value*>(Val);
}
template<typename T>
inline T *unwrap(LLVMValueRef Val) {
return cast<T>(unwrap(Val));
}
inline Value **unwrap(LLVMValueRef *Vals) {
return reinterpret_cast<Value**>(Vals);
}
template<typename T>
inline T **unwrap(LLVMValueRef *Vals, unsigned Length) {
#if DEBUG
for (LLVMValueRef *I = Vals, E = Vals + Length; I != E; ++I)
cast<T>(*I);
#endif
return reinterpret_cast<T**>(Vals);
}
inline LLVMValueRef wrap(const Value *Val) {
return reinterpret_cast<LLVMValueRef>(const_cast<Value*>(Val));
}
inline LLVMValueRef *wrap(const Value **Vals) {
return reinterpret_cast<LLVMValueRef*>(const_cast<Value**>(Vals));
}
}
#endif

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//===-- BitWriter.cpp -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm-c/BitWriter.h"
#include "llvm/CHelpers.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include <fstream>
using namespace llvm;
/*===-- Operations on modules ---------------------------------------------===*/
int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
std::ofstream OS(Path);
if (!OS.fail())
WriteBitcodeToFile(unwrap(M), OS);
if (OS.fail())
return -1;
return 0;
}
#ifdef __GNUC__
#include <ext/stdio_filebuf.h>
// FIXME: Control this with configure? Provide some portable abstraction in
// libSystem? As is, the user will just get a linker error if they use this on
// non-GCC. Some C++ stdlibs even have ofstream::ofstream(int fd).
int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
__gnu_cxx::stdio_filebuf<char> Buffer(FileHandle, std::ios_base::out);
std::ostream OS(&Buffer);
if (!OS.fail())
WriteBitcodeToFile(unwrap(M), OS);
if (OS.fail())
return -1;
return 0;
}
#endif

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//===-- Core.cpp ----------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Gordon Henriksen and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the C bindings for libLLVMCore.a, which implements
// the LLVM intermediate representation.
//
//===----------------------------------------------------------------------===//
#include "llvm-c/Core.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/CHelpers.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/GlobalVariable.h"
#include <ostream>
#include <fstream>
#include <cassert>
using namespace llvm;
/*===-- Operations on modules ---------------------------------------------===*/
LLVMModuleRef LLVMModuleCreateWithName(const char *ModuleID) {
return wrap(new Module(ModuleID));
}
void LLVMDisposeModule(LLVMModuleRef M) {
delete unwrap(M);
}
int LLVMAddTypeName(LLVMModuleRef M, const char *Name, LLVMTypeRef Ty) {
return unwrap(M)->addTypeName(Name, unwrap(Ty));
}
/*===-- Operations on types -----------------------------------------------===*/
/*--.. Operations on all types (mostly) ....................................--*/
LLVMTypeKind LLVMGetTypeKind(LLVMTypeRef Ty) {
return static_cast<LLVMTypeKind>(unwrap(Ty)->getTypeID());
}
void LLVMRefineAbstractType(LLVMTypeRef AbstractType, LLVMTypeRef ConcreteType){
DerivedType *Ty = unwrap<DerivedType>(AbstractType);
Ty->refineAbstractTypeTo(unwrap(ConcreteType));
}
/*--.. Operations on integer types .........................................--*/
LLVMTypeRef LLVMInt1Type() { return (LLVMTypeRef) Type::Int1Ty; }
LLVMTypeRef LLVMInt8Type() { return (LLVMTypeRef) Type::Int8Ty; }
LLVMTypeRef LLVMInt16Type() { return (LLVMTypeRef) Type::Int16Ty; }
LLVMTypeRef LLVMInt32Type() { return (LLVMTypeRef) Type::Int32Ty; }
LLVMTypeRef LLVMInt64Type() { return (LLVMTypeRef) Type::Int64Ty; }
LLVMTypeRef LLVMCreateIntegerType(unsigned NumBits) {
return wrap(IntegerType::get(NumBits));
}
unsigned LLVMGetIntegerTypeWidth(LLVMTypeRef IntegerTy) {
return unwrap<IntegerType>(IntegerTy)->getBitWidth();
}
/*--.. Operations on real types ............................................--*/
LLVMTypeRef LLVMFloatType() { return (LLVMTypeRef) Type::FloatTy; }
LLVMTypeRef LLVMDoubleType() { return (LLVMTypeRef) Type::DoubleTy; }
LLVMTypeRef LLVMX86FP80Type() { return (LLVMTypeRef) Type::X86_FP80Ty; }
LLVMTypeRef LLVMFP128Type() { return (LLVMTypeRef) Type::FP128Ty; }
LLVMTypeRef LLVMPPCFP128Type() { return (LLVMTypeRef) Type::PPC_FP128Ty; }
/*--.. Operations on function types ........................................--*/
LLVMTypeRef LLVMCreateFunctionType(LLVMTypeRef ReturnType,
LLVMTypeRef *ParamTypes, unsigned ParamCount,
int IsVarArg) {
std::vector<const Type*> Tys;
for (LLVMTypeRef *I = ParamTypes, *E = ParamTypes + ParamCount; I != E; ++I)
Tys.push_back(unwrap(*I));
return wrap(FunctionType::get(unwrap(ReturnType), Tys, IsVarArg != 0));
}
int LLVMIsFunctionVarArg(LLVMTypeRef FunctionTy) {
return unwrap<FunctionType>(FunctionTy)->isVarArg();
}
LLVMTypeRef LLVMGetFunctionReturnType(LLVMTypeRef FunctionTy) {
return wrap(unwrap<FunctionType>(FunctionTy)->getReturnType());
}
unsigned LLVMGetFunctionParamCount(LLVMTypeRef FunctionTy) {
return unwrap<FunctionType>(FunctionTy)->getNumParams();
}
void LLVMGetFunctionParamTypes(LLVMTypeRef FunctionTy, LLVMTypeRef *Dest) {
FunctionType *Ty = unwrap<FunctionType>(FunctionTy);
for (FunctionType::param_iterator I = Ty->param_begin(),
E = Ty->param_end(); I != E; ++I)
*Dest++ = wrap(*I);
}
/*--.. Operations on struct types ..........................................--*/
LLVMTypeRef LLVMCreateStructType(LLVMTypeRef *ElementTypes,
unsigned ElementCount, int Packed) {
std::vector<const Type*> Tys;
for (LLVMTypeRef *I = ElementTypes,
*E = ElementTypes + ElementCount; I != E; ++I)
Tys.push_back(unwrap(*I));
return wrap(StructType::get(Tys, Packed != 0));
}
unsigned LLVMGetStructElementCount(LLVMTypeRef StructTy) {
return unwrap<StructType>(StructTy)->getNumElements();
}
void LLVMGetStructElementTypes(LLVMTypeRef StructTy, LLVMTypeRef *Dest) {
StructType *Ty = unwrap<StructType>(StructTy);
for (FunctionType::param_iterator I = Ty->element_begin(),
E = Ty->element_end(); I != E; ++I)
*Dest++ = wrap(*I);
}
int LLVMIsPackedStruct(LLVMTypeRef StructTy) {
return unwrap<StructType>(StructTy)->isPacked();
}
/*--.. Operations on array, pointer, and vector types (sequence types) .....--*/
LLVMTypeRef LLVMCreateArrayType(LLVMTypeRef ElementType, unsigned ElementCount){
return wrap(ArrayType::get(unwrap(ElementType), ElementCount));
}
LLVMTypeRef LLVMCreatePointerType(LLVMTypeRef ElementType) {
return wrap(PointerType::get(unwrap(ElementType)));
}
LLVMTypeRef LLVMCreateVectorType(LLVMTypeRef ElementType,unsigned ElementCount){
return wrap(VectorType::get(unwrap(ElementType), ElementCount));
}
LLVMTypeRef LLVMGetElementType(LLVMTypeRef Ty) {
return wrap(unwrap<SequentialType>(Ty)->getElementType());
}
unsigned LLVMGetArrayLength(LLVMTypeRef ArrayTy) {
return unwrap<ArrayType>(ArrayTy)->getNumElements();
}
unsigned LLVMGetVectorSize(LLVMTypeRef VectorTy) {
return unwrap<VectorType>(VectorTy)->getNumElements();
}
/*--.. Operations on other types ...........................................--*/
LLVMTypeRef LLVMVoidType() { return (LLVMTypeRef) Type::VoidTy; }
LLVMTypeRef LLVMLabelType() { return (LLVMTypeRef) Type::LabelTy; }
LLVMTypeRef LLVMCreateOpaqueType() {
return wrap(llvm::OpaqueType::get());
}
/*===-- Operations on values ----------------------------------------------===*/
/*--.. Operations on all values ............................................--*/
LLVMTypeRef LLVMGetTypeOfValue(LLVMValueRef Val) {
return wrap(unwrap(Val)->getType());
}
const char *LLVMGetValueName(LLVMValueRef Val) {
return unwrap(Val)->getNameStart();
}
void LLVMSetValueName(LLVMValueRef Val, const char *Name) {
unwrap(Val)->setName(Name);
}
/*--.. Operations on constants of any type .................................--*/
LLVMValueRef LLVMGetNull(LLVMTypeRef Ty) {
return wrap(Constant::getNullValue(unwrap(Ty)));
}
LLVMValueRef LLVMGetAllOnes(LLVMTypeRef Ty) {
return wrap(Constant::getAllOnesValue(unwrap(Ty)));
}
LLVMValueRef LLVMGetUndef(LLVMTypeRef Ty) {
return wrap(UndefValue::get(unwrap(Ty)));
}
int LLVMIsNull(LLVMValueRef Val) {
if (Constant *C = dyn_cast<Constant>(unwrap(Val)))
return C->isNullValue();
return false;
}
/*--.. Operations on scalar constants ......................................--*/
LLVMValueRef LLVMGetIntConstant(LLVMTypeRef IntTy, unsigned long long N,
int SignExtend) {
return wrap(ConstantInt::get(unwrap<IntegerType>(IntTy), N, SignExtend != 0));
}
LLVMValueRef LLVMGetRealConstant(LLVMTypeRef RealTy, double N) {
return wrap(ConstantFP::get(unwrap(RealTy), APFloat(N)));
}
/*--.. Operations on composite constants ...................................--*/
LLVMValueRef LLVMGetStringConstant(const char *Str, unsigned Length,
int DontNullTerminate) {
/* Inverted the sense of AddNull because ', 0)' is a
better mnemonic for null termination than ', 1)'. */
return wrap(ConstantArray::get(std::string(Str, Length),
DontNullTerminate == 0));
}
LLVMValueRef LLVMGetArrayConstant(LLVMTypeRef ElementTy,
LLVMValueRef *ConstantVals, unsigned Length) {
return wrap(ConstantArray::get(ArrayType::get(unwrap(ElementTy), Length),
unwrap<Constant>(ConstantVals, Length),
Length));
}
LLVMValueRef LLVMGetStructConstant(LLVMValueRef *ConstantVals, unsigned Count,
int Packed) {
return wrap(ConstantStruct::get(unwrap<Constant>(ConstantVals, Count),
Count, Packed != 0));
}
LLVMValueRef LLVMGetVectorConstant(LLVMValueRef *ScalarConstantVals,
unsigned Size) {
return wrap(ConstantVector::get(unwrap<Constant>(ScalarConstantVals, Size),
Size));
}
/*--.. Operations on global variables, functions, and aliases (globals) ....--*/
int LLVMIsDeclaration(LLVMValueRef Global) {
return unwrap<GlobalValue>(Global)->isDeclaration();
}
LLVMLinkage LLVMGetLinkage(LLVMValueRef Global) {
return static_cast<LLVMLinkage>(unwrap<GlobalValue>(Global)->getLinkage());
}
void LLVMSetLinkage(LLVMValueRef Global, LLVMLinkage Linkage) {
unwrap<GlobalValue>(Global)
->setLinkage(static_cast<GlobalValue::LinkageTypes>(Linkage));
}
const char *LLVMGetSection(LLVMValueRef Global) {
return unwrap<GlobalValue>(Global)->getSection().c_str();
}
void LLVMSetSection(LLVMValueRef Global, const char *Section) {
unwrap<GlobalValue>(Global)->setSection(Section);
}
LLVMVisibility LLVMGetVisibility(LLVMValueRef Global) {
return static_cast<LLVMVisibility>(
unwrap<GlobalValue>(Global)->getVisibility());
}
void LLVMSetVisibility(LLVMValueRef Global, LLVMVisibility Viz) {
unwrap<GlobalValue>(Global)
->setVisibility(static_cast<GlobalValue::VisibilityTypes>(Viz));
}
unsigned LLVMGetAlignment(LLVMValueRef Global) {
return unwrap<GlobalValue>(Global)->getAlignment();
}
void LLVMSetAlignment(LLVMValueRef Global, unsigned Bytes) {
unwrap<GlobalValue>(Global)->setAlignment(Bytes);
}
/*--.. Operations on global variables ......................................--*/
LLVMValueRef LLVMAddGlobal(LLVMModuleRef M, LLVMTypeRef Ty, const char *Name) {
return wrap(new GlobalVariable(unwrap(Ty), false,
GlobalValue::ExternalLinkage, 0, Name, unwrap(M)));
}
void LLVMDeleteGlobal(LLVMValueRef GlobalVar) {
unwrap<GlobalVariable>(GlobalVar)->eraseFromParent();
}
int LLVMHasInitializer(LLVMValueRef GlobalVar) {
return unwrap<GlobalVariable>(GlobalVar)->hasInitializer();
}
LLVMValueRef LLVMGetInitializer(LLVMValueRef GlobalVar) {
return wrap(unwrap<GlobalVariable>(GlobalVar)->getInitializer());
}
void LLVMSetInitializer(LLVMValueRef GlobalVar, LLVMValueRef ConstantVal) {
unwrap<GlobalVariable>(GlobalVar)
->setInitializer(unwrap<Constant>(ConstantVal));
}
int LLVMIsThreadLocal(LLVMValueRef GlobalVar) {
return unwrap<GlobalVariable>(GlobalVar)->isThreadLocal();
}
void LLVMSetThreadLocal(LLVMValueRef GlobalVar, int IsThreadLocal) {
unwrap<GlobalVariable>(GlobalVar)->setThreadLocal(IsThreadLocal != 0);
}