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