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/*===-- llvm-c/Target.h - Target Lib C Iface --------------------*- C++ -*-===*\
|* *|
|* The LLVM Compiler Infrastructure *|
|* *|
|* This file is distributed under the University of Illinois Open Source *|
|* License. See LICENSE.TXT for details. *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This header declares the C interface to libLLVMTarget.a, which *|
|* implements target information. *|
|* *|
|* 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_TARGET_H
#define LLVM_C_TARGET_H
#include "llvm-c/Core.h"
#ifdef __cplusplus
extern "C" {
#endif
enum { LLVMBigEndian, LLVMLittleEndian };
typedef int LLVMByteOrdering;
typedef struct LLVMOpaqueTargetData *LLVMTargetDataRef;
typedef struct LLVMStructLayout *LLVMStructLayoutRef;
/*===-- Target Data -------------------------------------------------------===*/
/** Creates target data from a target layout string.
See the constructor llvm::TargetData::TargetData. */
LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep);
/** Adds target data information to a pass manager. This does not take ownership
of the target data.
See the method llvm::PassManagerBase::add. */
void LLVMAddTargetData(LLVMTargetDataRef, LLVMPassManagerRef);
/** Converts target data to a target layout string. The string must be disposed
with LLVMDisposeMessage.
See the constructor llvm::TargetData::TargetData. */
char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef);
/** Returns the byte order of a target, either LLVMBigEndian or
LLVMLittleEndian.
See the method llvm::TargetData::isLittleEndian. */
LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef);
/** Returns the pointer size in bytes for a target.
See the method llvm::TargetData::getPointerSize. */
unsigned LLVMPointerSize(LLVMTargetDataRef);
/** Returns the integer type that is the same size as a pointer on a target.
See the method llvm::TargetData::getIntPtrType. */
LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef);
/** Computes the size of a type in bytes for a target.
See the method llvm::TargetData::getTypeSizeInBits. */
unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef, LLVMTypeRef);
/** Computes the storage size of a type in bytes for a target.
See the method llvm::TargetData::getTypeStoreSize. */
unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef, LLVMTypeRef);
/** Computes the ABI size of a type in bytes for a target.
See the method llvm::TargetData::getTypePaddedSize. */
unsigned long long LLVMABISizeOfType(LLVMTargetDataRef, LLVMTypeRef);
/** Computes the ABI alignment of a type in bytes for a target.
See the method llvm::TargetData::getTypeABISize. */
unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef, LLVMTypeRef);
/** Computes the call frame alignment of a type in bytes for a target.
See the method llvm::TargetData::getTypeABISize. */
unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef, LLVMTypeRef);
/** Computes the preferred alignment of a type in bytes for a target.
See the method llvm::TargetData::getTypeABISize. */
unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef, LLVMTypeRef);
/** Computes the preferred alignment of a global variable in bytes for a target.
See the method llvm::TargetData::getPreferredAlignment. */
unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef,
LLVMValueRef GlobalVar);
/** Computes the structure element that contains the byte offset for a target.
See the method llvm::StructLayout::getElementContainingOffset. */
unsigned LLVMElementAtOffset(LLVMTargetDataRef, LLVMTypeRef StructTy,
unsigned long long Offset);
/** Computes the byte offset of the indexed struct element for a target.
See the method llvm::StructLayout::getElementContainingOffset. */
unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef, LLVMTypeRef StructTy,
unsigned Element);
/** Struct layouts are speculatively cached. If a TargetDataRef is alive when
types are being refined and removed, this method must be called whenever a
struct type is removed to avoid a dangling pointer in this cache.
See the method llvm::TargetData::InvalidateStructLayoutInfo. */
void LLVMInvalidateStructLayout(LLVMTargetDataRef, LLVMTypeRef StructTy);
/** Deallocates a TargetData.
See the destructor llvm::TargetData::~TargetData. */
void LLVMDisposeTargetData(LLVMTargetDataRef);
#ifdef __cplusplus
}
namespace llvm {
class TargetData;
inline TargetData *unwrap(LLVMTargetDataRef P) {
return reinterpret_cast<TargetData*>(P);
}
inline LLVMTargetDataRef wrap(const TargetData *P) {
return reinterpret_cast<LLVMTargetDataRef>(const_cast<TargetData*>(P));
}
}
#endif /* defined(__cplusplus) */
#endif
|