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/InitializePasses.h"
  18 #include "llvm/PassManager.h"
  19 #include "llvm/Target/TargetData.h"
  20 #include "llvm/LLVMContext.h"
  21 #include <cstring>
  22
  23 using namespace llvm;
  24
  25 void llvm::initializeTarget(PassRegistry &Registry) {
  26   initializeTargetDataPass(Registry);
  27   initializeTargetLibraryInfoPass(Registry);
  28 }
  29
  30 void LLVMInitializeTarget(LLVMPassRegistryRef R) {
  31   initializeTarget(*unwrap(R));
  32 }
  33
  34 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
  35   return wrap(new TargetData(StringRep));
  36 }
  37
  38 void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
  39   unwrap(PM)->add(new TargetData(*unwrap(TD)));
  40 }
  41
  42 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
  43   std::string StringRep = unwrap(TD)->getStringRepresentation();
  44   return strdup(StringRep.c_str());
  45 }
  46
  47 LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
  48   return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
  49 }
  50
  51 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
  52   return unwrap(TD)->getPointerSize();
  53 }
  54
  55 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
  56   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
  57 }
  58
  59 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  60   return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
  61 }
  62
  63 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  64   return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
  65 }
  66
  67 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  68   return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
  69 }
  70
  71 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  72   return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
  73 }
  74
  75 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  76   return unwrap(TD)->getCallFrameTypeAlignment(unwrap(Ty));
  77 }
  78
  79 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  80   return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
  81 }
  82
  83 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
  84                                         LLVMValueRef GlobalVar) {
  85   return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
  86 }
  87
  88 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
  89                              unsigned long long Offset) {
  90   const StructType *STy = unwrap<StructType>(StructTy);
  91   return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
  92 }
  93
  94 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
  95                                        unsigned Element) {
  96   const StructType *STy = unwrap<StructType>(StructTy);
  97   return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
  98 }
  99
 100 void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
 101   delete unwrap(TD);
 102 }