1 //===-- Target.cpp --------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the common infrastructure (including C bindings) for
10 // libLLVMTarget.a, which implements target information.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm-c/Target.h"
15 #include "llvm/Analysis/TargetLibraryInfo.h"
16 #include "llvm/IR/DataLayout.h"
17 #include "llvm/IR/LLVMContext.h"
18 #include "llvm/IR/LegacyPassManager.h"
19 #include "llvm/IR/Module.h"
20 #include "llvm/IR/Value.h"
21 #include "llvm/InitializePasses.h"
22 #include <cstring>
23
24 using namespace llvm;
25
26 // Avoid including "llvm-c/Core.h" for compile time, fwd-declare this instead.
27 extern "C" LLVMContextRef LLVMGetGlobalContext(void);
28
unwrap(LLVMTargetLibraryInfoRef P)29 inline TargetLibraryInfoImpl *unwrap(LLVMTargetLibraryInfoRef P) {
30 return reinterpret_cast<TargetLibraryInfoImpl*>(P);
31 }
32
wrap(const TargetLibraryInfoImpl * P)33 inline LLVMTargetLibraryInfoRef wrap(const TargetLibraryInfoImpl *P) {
34 TargetLibraryInfoImpl *X = const_cast<TargetLibraryInfoImpl*>(P);
35 return reinterpret_cast<LLVMTargetLibraryInfoRef>(X);
36 }
37
initializeTarget(PassRegistry & Registry)38 void llvm::initializeTarget(PassRegistry &Registry) {
39 initializeTargetLibraryInfoWrapperPassPass(Registry);
40 initializeTargetTransformInfoWrapperPassPass(Registry);
41 }
42
LLVMGetModuleDataLayout(LLVMModuleRef M)43 LLVMTargetDataRef LLVMGetModuleDataLayout(LLVMModuleRef M) {
44 return wrap(&unwrap(M)->getDataLayout());
45 }
46
LLVMSetModuleDataLayout(LLVMModuleRef M,LLVMTargetDataRef DL)47 void LLVMSetModuleDataLayout(LLVMModuleRef M, LLVMTargetDataRef DL) {
48 unwrap(M)->setDataLayout(*unwrap(DL));
49 }
50
LLVMCreateTargetData(const char * StringRep)51 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
52 return wrap(new DataLayout(StringRep));
53 }
54
LLVMDisposeTargetData(LLVMTargetDataRef TD)55 void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
56 delete unwrap(TD);
57 }
58
LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,LLVMPassManagerRef PM)59 void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
60 LLVMPassManagerRef PM) {
61 unwrap(PM)->add(new TargetLibraryInfoWrapperPass(*unwrap(TLI)));
62 }
63
LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD)64 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
65 std::string StringRep = unwrap(TD)->getStringRepresentation();
66 return strdup(StringRep.c_str());
67 }
68
LLVMByteOrder(LLVMTargetDataRef TD)69 LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
70 return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
71 }
72
LLVMPointerSize(LLVMTargetDataRef TD)73 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
74 return unwrap(TD)->getPointerSize(0);
75 }
76
LLVMPointerSizeForAS(LLVMTargetDataRef TD,unsigned AS)77 unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
78 return unwrap(TD)->getPointerSize(AS);
79 }
80
LLVMIntPtrType(LLVMTargetDataRef TD)81 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
82 return wrap(unwrap(TD)->getIntPtrType(*unwrap(LLVMGetGlobalContext())));
83 }
84
LLVMIntPtrTypeForAS(LLVMTargetDataRef TD,unsigned AS)85 LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
86 return wrap(unwrap(TD)->getIntPtrType(*unwrap(LLVMGetGlobalContext()), AS));
87 }
88
LLVMIntPtrTypeInContext(LLVMContextRef C,LLVMTargetDataRef TD)89 LLVMTypeRef LLVMIntPtrTypeInContext(LLVMContextRef C, LLVMTargetDataRef TD) {
90 return wrap(unwrap(TD)->getIntPtrType(*unwrap(C)));
91 }
92
LLVMIntPtrTypeForASInContext(LLVMContextRef C,LLVMTargetDataRef TD,unsigned AS)93 LLVMTypeRef LLVMIntPtrTypeForASInContext(LLVMContextRef C, LLVMTargetDataRef TD, unsigned AS) {
94 return wrap(unwrap(TD)->getIntPtrType(*unwrap(C), AS));
95 }
96
LLVMSizeOfTypeInBits(LLVMTargetDataRef TD,LLVMTypeRef Ty)97 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
98 return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
99 }
100
LLVMStoreSizeOfType(LLVMTargetDataRef TD,LLVMTypeRef Ty)101 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
102 return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
103 }
104
LLVMABISizeOfType(LLVMTargetDataRef TD,LLVMTypeRef Ty)105 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
106 return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
107 }
108
LLVMABIAlignmentOfType(LLVMTargetDataRef TD,LLVMTypeRef Ty)109 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
110 return unwrap(TD)->getABITypeAlign(unwrap(Ty)).value();
111 }
112
LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD,LLVMTypeRef Ty)113 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
114 return unwrap(TD)->getABITypeAlign(unwrap(Ty)).value();
115 }
116
LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD,LLVMTypeRef Ty)117 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
118 return unwrap(TD)->getPrefTypeAlign(unwrap(Ty)).value();
119 }
120
LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,LLVMValueRef GlobalVar)121 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
122 LLVMValueRef GlobalVar) {
123 return unwrap(TD)
124 ->getPreferredAlign(unwrap<GlobalVariable>(GlobalVar))
125 .value();
126 }
127
LLVMElementAtOffset(LLVMTargetDataRef TD,LLVMTypeRef StructTy,unsigned long long Offset)128 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
129 unsigned long long Offset) {
130 StructType *STy = unwrap<StructType>(StructTy);
131 return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
132 }
133
LLVMOffsetOfElement(LLVMTargetDataRef TD,LLVMTypeRef StructTy,unsigned Element)134 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
135 unsigned Element) {
136 StructType *STy = unwrap<StructType>(StructTy);
137 return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
138 }
139