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