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