C and Objective Caml bindings for the TargetData class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48422 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm-c/Target.h b/include/llvm-c/Target.h
new file mode 100644
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+++ b/include/llvm-c/Target.h
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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::getABITypeSize. */
+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