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/InitializePasses.h"
  20 #include "llvm/PassManager.h"
  21 #include "llvm/Target/TargetLibraryInfo.h"
  22 #include <cstring>
  23
  24 using namespace llvm;
  25
  26 void llvm::initializeTarget(PassRegistry &Registry) {
  27   initializeDataLayoutPass(Registry);
  28   initializeTargetLibraryInfoPass(Registry);
  29 }
  30
  31 void LLVMInitializeTarget(LLVMPassRegistryRef R) {
  32   initializeTarget(*unwrap(R));
  33 }
  34
  35 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
  36   return wrap(new DataLayout(StringRep));
  37 }
  38
  39 void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
  40   unwrap(PM)->add(new DataLayout(*unwrap(TD)));
  41 }
  42
  43 void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
  44                               LLVMPassManagerRef PM) {
  45   unwrap(PM)->add(new TargetLibraryInfo(*unwrap(TLI)));
  46 }
  47
  48 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
  49   std::string StringRep = unwrap(TD)->getStringRepresentation();
  50   return strdup(StringRep.c_str());
  51 }
  52
  53 LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
  54   return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
  55 }
  56
  57 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
  58   return unwrap(TD)->getPointerSize(0);
  59 }
  60
  61 unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
  62   return unwrap(TD)->getPointerSize(AS);
  63 }
  64
  65 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
  66   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
  67 }
  68
  69 LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
  70   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext(), AS));
  71 }
  72
  73 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  74   return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
  75 }
  76
  77 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  78   return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
  79 }
  80
  81 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  82   return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
  83 }
  84
  85 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  86   return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
  87 }
  88
  89 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  90   return unwrap(TD)->getCallFrameTypeAlignment(unwrap(Ty));
  91 }
  92
  93 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
  94   return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
  95 }
  96
  97 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
  98                                         LLVMValueRef GlobalVar) {
  99   return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
 100 }
 101
 102 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
 103                              unsigned long long Offset) {
 104   StructType *STy = unwrap<StructType>(StructTy);
 105   return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
 106 }
 107
 108 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
 109                                        unsigned Element) {
 110   StructType *STy = unwrap<StructType>(StructTy);
 111   return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
 112 }
 113
 114 void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
 115   delete unwrap(TD);
 116 }