1//===-- Target.cpp --------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file implements the common infrastructure (including C bindings) for
11// libLLVMTarget.a, which implements target information.
12//
13//===----------------------------------------------------------------------===//
14
15#include "llvm-c/Target.h"
16#include "llvm-c/Initialization.h"
17#include "llvm/IR/DataLayout.h"
18#include "llvm/IR/LLVMContext.h"
19#include "llvm/IR/Value.h"
20#include "llvm/InitializePasses.h"
21#include "llvm/PassManager.h"
22#include "llvm/Target/TargetLibraryInfo.h"
23#include <cstring>
24
25using namespace llvm;
26
27inline DataLayout *unwrap(LLVMTargetDataRef P) {
28  return reinterpret_cast<DataLayout*>(P);
29}
30
31inline LLVMTargetDataRef wrap(const DataLayout *P) {
32  return reinterpret_cast<LLVMTargetDataRef>(const_cast<DataLayout*>(P));
33}
34
35inline TargetLibraryInfo *unwrap(LLVMTargetLibraryInfoRef P) {
36  return reinterpret_cast<TargetLibraryInfo*>(P);
37}
38
39inline LLVMTargetLibraryInfoRef wrap(const TargetLibraryInfo *P) {
40  TargetLibraryInfo *X = const_cast<TargetLibraryInfo*>(P);
41  return reinterpret_cast<LLVMTargetLibraryInfoRef>(X);
42}
43
44void llvm::initializeTarget(PassRegistry &Registry) {
45  initializeDataLayoutPass(Registry);
46  initializeTargetLibraryInfoPass(Registry);
47}
48
49void LLVMInitializeTarget(LLVMPassRegistryRef R) {
50  initializeTarget(*unwrap(R));
51}
52
53LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
54  return wrap(new DataLayout(StringRep));
55}
56
57void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
58  unwrap(PM)->add(new DataLayout(*unwrap(TD)));
59}
60
61void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
62                              LLVMPassManagerRef PM) {
63  unwrap(PM)->add(new TargetLibraryInfo(*unwrap(TLI)));
64}
65
66char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
67  std::string StringRep = unwrap(TD)->getStringRepresentation();
68  return strdup(StringRep.c_str());
69}
70
71LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
72  return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
73}
74
75unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
76  return unwrap(TD)->getPointerSize(0);
77}
78
79unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
80  return unwrap(TD)->getPointerSize(AS);
81}
82
83LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
84  return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
85}
86
87LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
88  return wrap(unwrap(TD)->getIntPtrType(getGlobalContext(), AS));
89}
90
91unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
92  return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
93}
94
95unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
96  return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
97}
98
99unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
100  return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
101}
102
103unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
104  return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
105}
106
107unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
108  return unwrap(TD)->getCallFrameTypeAlignment(unwrap(Ty));
109}
110
111unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
112  return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
113}
114
115unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
116                                        LLVMValueRef GlobalVar) {
117  return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
118}
119
120unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
121                             unsigned long long Offset) {
122  StructType *STy = unwrap<StructType>(StructTy);
123  return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
124}
125
126unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
127                                       unsigned Element) {
128  StructType *STy = unwrap<StructType>(StructTy);
129  return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
130}
131
132void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
133  delete unwrap(TD);
134}
135