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 TargetLibraryInfo *unwrap(LLVMTargetLibraryInfoRef P) {
28  return reinterpret_cast<TargetLibraryInfo*>(P);
29}
30
31inline LLVMTargetLibraryInfoRef wrap(const TargetLibraryInfo *P) {
32  TargetLibraryInfo *X = const_cast<TargetLibraryInfo*>(P);
33  return reinterpret_cast<LLVMTargetLibraryInfoRef>(X);
34}
35
36void llvm::initializeTarget(PassRegistry &Registry) {
37  initializeDataLayoutPassPass(Registry);
38  initializeTargetLibraryInfoPass(Registry);
39}
40
41void LLVMInitializeTarget(LLVMPassRegistryRef R) {
42  initializeTarget(*unwrap(R));
43}
44
45LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
46  return wrap(new DataLayout(StringRep));
47}
48
49void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
50  // The DataLayoutPass must now be in sync with the module. Unfortunatelly we
51  // cannot enforce that from the C api.
52  unwrap(PM)->add(new DataLayoutPass(*unwrap(TD)));
53}
54
55void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
56                              LLVMPassManagerRef PM) {
57  unwrap(PM)->add(new TargetLibraryInfo(*unwrap(TLI)));
58}
59
60char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
61  std::string StringRep = unwrap(TD)->getStringRepresentation();
62  return strdup(StringRep.c_str());
63}
64
65LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
66  return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
67}
68
69unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
70  return unwrap(TD)->getPointerSize(0);
71}
72
73unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
74  return unwrap(TD)->getPointerSize(AS);
75}
76
77LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
78  return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
79}
80
81LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
82  return wrap(unwrap(TD)->getIntPtrType(getGlobalContext(), AS));
83}
84
85LLVMTypeRef LLVMIntPtrTypeInContext(LLVMContextRef C, LLVMTargetDataRef TD) {
86  return wrap(unwrap(TD)->getIntPtrType(*unwrap(C)));
87}
88
89LLVMTypeRef LLVMIntPtrTypeForASInContext(LLVMContextRef C, LLVMTargetDataRef TD, unsigned AS) {
90  return wrap(unwrap(TD)->getIntPtrType(*unwrap(C), AS));
91}
92
93unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
94  return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
95}
96
97unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
98  return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
99}
100
101unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
102  return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
103}
104
105unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
106  return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
107}
108
109unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
110  return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
111}
112
113unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
114  return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
115}
116
117unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
118                                        LLVMValueRef GlobalVar) {
119  return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
120}
121
122unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
123                             unsigned long long Offset) {
124  StructType *STy = unwrap<StructType>(StructTy);
125  return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
126}
127
128unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
129                                       unsigned Element) {
130  StructType *STy = unwrap<StructType>(StructTy);
131  return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
132}
133
134void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
135  delete unwrap(TD);
136}
137