lib/Target/Target.cpp

   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/IR/DataLayout.h"
  18 #include "llvm/IR/LLVMContext.h"
  19 #include "llvm/IR/Value.h"
  20 #include "llvm/InitializePasses.h"
  21 #include "llvm/PassManager.h"
  22 #include "llvm/Analysis/TargetLibraryInfo.h"
  23 #include <cstring>
  24
  25 using namespace llvm;
  26
  27 inline TargetLibraryInfoImpl *unwrap(LLVMTargetLibraryInfoRef P) {
  28   return reinterpret_cast<TargetLibraryInfoImpl*>(P);
  29 }
  30
  31 inline LLVMTargetLibraryInfoRef wrap(const TargetLibraryInfoImpl *P) {
  32   TargetLibraryInfoImpl *X = const_cast<TargetLibraryInfoImpl*>(P);
  33   return reinterpret_cast<LLVMTargetLibraryInfoRef>(X);
  34 }
  35
  36 void llvm::initializeTarget(PassRegistry &Registry) {
  37   initializeDataLayoutPassPass(Registry);
  38   initializeTargetLibraryInfoWrapperPassPass(Registry);
  39   initializeTargetTransformInfoWrapperPassPass(Registry);
  40 }
  41
  42 void LLVMInitializeTarget(LLVMPassRegistryRef R) {
  43   initializeTarget(*unwrap(R));
  44 }
  45
  46 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
  47   return wrap(new DataLayout(StringRep));
  48 }
  49
  50 void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
  51   // The DataLayoutPass must now be in sync with the module. Unfortunatelly we
  52   // cannot enforce that from the C api.
  53   unwrap(PM)->add(new DataLayoutPass());
  54 }
  55
  56 void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
  57                               LLVMPassManagerRef PM) {
  58   unwrap(PM)->add(new TargetLibraryInfoWrapperPass(*unwrap(TLI)));
  59 }
  60
  61 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
  62   std::string StringRep = unwrap(TD)->getStringRepresentation();
  63   return strdup(StringRep.c_str());
  64 }
  65
  66 LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
  67   return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
  68 }
  69
  70 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
  71   return unwrap(TD)->getPointerSize(0);
  72 }
  73
  74 unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
  75   return unwrap(TD)->getPointerSize(AS);
  76 }
  77
  78 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
  79   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
  80 }
  81
  82 LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
  83   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext(), AS));
  84 }
  85
  86 LLVMTypeRef LLVMIntPtrTypeInContext(LLVMContextRef C, LLVMTargetDataRef TD) {
  87   return wrap(unwrap(TD)->getIntPtrType(*unwrap(C)));
  88 }
  89
  90 LLVMTypeRef LLVMIntPtrTypeForASInContext(LLVMContextRef C, LLVMTargetDataRef TD, unsigned AS) {
  91   return wrap(unwrap(TD)->getIntPtrType(*unwrap(C), AS));
  92 }
  93
  94 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  95   return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
  96 }
  97
  98 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  99   return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
 100 }
 101
 102 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
 103   return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
 104 }
 105
 106 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
 107   return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
 108 }
 109
 110 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
 111   return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
 112 }
 113
 114 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
 115   return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
 116 }
 117
 118 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
 119                                         LLVMValueRef GlobalVar) {
 120   return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
 121 }
 122
 123 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
 124                              unsigned long long Offset) {
 125   StructType *STy = unwrap<StructType>(StructTy);
 126   return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
 127 }
 128
 129 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
 130                                        unsigned Element) {
 131   StructType *STy = unwrap<StructType>(StructTy);
 132   return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
 133 }
 134
 135 void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
 136   delete unwrap(TD);
 137 }