Target.cpp revision 321369 
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/Analysis/TargetLibraryInfo.h"
18#include "llvm/IR/DataLayout.h"
19#include "llvm/IR/LLVMContext.h"
20#include "llvm/IR/LegacyPassManager.h"
21#include "llvm/IR/Value.h"
22#include "llvm/InitializePasses.h"
23#include <cstring>
24
25using namespace llvm;
26
27// Avoid including "llvm-c/Core.h" for compile time, fwd-declare this instead.
28extern "C" LLVMContextRef LLVMGetGlobalContext(void);
29
30inline TargetLibraryInfoImpl *unwrap(LLVMTargetLibraryInfoRef P) {
31  return reinterpret_cast<TargetLibraryInfoImpl*>(P);
32}
33
34inline LLVMTargetLibraryInfoRef wrap(const TargetLibraryInfoImpl *P) {
35  TargetLibraryInfoImpl *X = const_cast<TargetLibraryInfoImpl*>(P);
36  return reinterpret_cast<LLVMTargetLibraryInfoRef>(X);
37}
38
39void llvm::initializeTarget(PassRegistry &Registry) {
40  initializeTargetLibraryInfoWrapperPassPass(Registry);
41  initializeTargetTransformInfoWrapperPassPass(Registry);
42}
43
44void LLVMInitializeTarget(LLVMPassRegistryRef R) {
45  initializeTarget(*unwrap(R));
46}
47
48LLVMTargetDataRef LLVMGetModuleDataLayout(LLVMModuleRef M) {
49  return wrap(&unwrap(M)->getDataLayout());
50}
51
52void LLVMSetModuleDataLayout(LLVMModuleRef M, LLVMTargetDataRef DL) {
53  unwrap(M)->setDataLayout(*unwrap(DL));
54}
55
56LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
57  return wrap(new DataLayout(StringRep));
58}
59
60void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
61  delete unwrap(TD);
62}
63
64void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
65                              LLVMPassManagerRef PM) {
66  unwrap(PM)->add(new TargetLibraryInfoWrapperPass(*unwrap(TLI)));
67}
68
69char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
70  std::string StringRep = unwrap(TD)->getStringRepresentation();
71  return strdup(StringRep.c_str());
72}
73
74LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
75  return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
76}
77
78unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
79  return unwrap(TD)->getPointerSize(0);
80}
81
82unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
83  return unwrap(TD)->getPointerSize(AS);
84}
85
86LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
87  return wrap(unwrap(TD)->getIntPtrType(*unwrap(LLVMGetGlobalContext())));
88}
89
90LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
91  return wrap(unwrap(TD)->getIntPtrType(*unwrap(LLVMGetGlobalContext()), AS));
92}
93
94LLVMTypeRef LLVMIntPtrTypeInContext(LLVMContextRef C, LLVMTargetDataRef TD) {
95  return wrap(unwrap(TD)->getIntPtrType(*unwrap(C)));
96}
97
98LLVMTypeRef LLVMIntPtrTypeForASInContext(LLVMContextRef C, LLVMTargetDataRef TD, unsigned AS) {
99  return wrap(unwrap(TD)->getIntPtrType(*unwrap(C), AS));
100}
101
102unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
103  return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
104}
105
106unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
107  return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
108}
109
110unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
111  return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
112}
113
114unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
115  return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
116}
117
118unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
119  return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
120}
121
122unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
123  return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
124}
125
126unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
127                                        LLVMValueRef GlobalVar) {
128  return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
129}
130
131unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
132                             unsigned long long Offset) {
133  StructType *STy = unwrap<StructType>(StructTy);
134  return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
135}
136
137unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
138                                       unsigned Element) {
139  StructType *STy = unwrap<StructType>(StructTy);
140  return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
141}
142