diff options
Diffstat (limited to 'contrib/llvm/lib/Target/TargetData.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/TargetData.cpp | 62 |
1 files changed, 18 insertions, 44 deletions
diff --git a/contrib/llvm/lib/Target/TargetData.cpp b/contrib/llvm/lib/Target/TargetData.cpp index 5870d8a..f35c96d 100644 --- a/contrib/llvm/lib/Target/TargetData.cpp +++ b/contrib/llvm/lib/Target/TargetData.cpp @@ -34,8 +34,7 @@ using namespace llvm; // Handle the Pass registration stuff necessary to use TargetData's. // Register the default SparcV9 implementation... -static RegisterPass<TargetData> X("targetdata", "Target Data Layout", false, - true); +INITIALIZE_PASS(TargetData, "targetdata", "Target Data Layout", false, true); char TargetData::ID = 0; //===----------------------------------------------------------------------===// @@ -98,8 +97,8 @@ unsigned StructLayout::getElementContainingOffset(uint64_t Offset) const { //===----------------------------------------------------------------------===// TargetAlignElem -TargetAlignElem::get(AlignTypeEnum align_type, unsigned char abi_align, - unsigned char pref_align, uint32_t bit_width) { +TargetAlignElem::get(AlignTypeEnum align_type, unsigned abi_align, + unsigned pref_align, uint32_t bit_width) { assert(abi_align <= pref_align && "Preferred alignment worse than ABI!"); TargetAlignElem retval; retval.AlignType = align_type; @@ -197,10 +196,10 @@ void TargetData::init(StringRef Desc) { } unsigned Size = getInt(Specifier.substr(1)); Split = Token.split(':'); - unsigned char ABIAlign = getInt(Split.first) / 8; + unsigned ABIAlign = getInt(Split.first) / 8; Split = Split.second.split(':'); - unsigned char PrefAlign = getInt(Split.first) / 8; + unsigned PrefAlign = getInt(Split.first) / 8; if (PrefAlign == 0) PrefAlign = ABIAlign; setAlignment(AlignType, ABIAlign, PrefAlign, Size); @@ -227,19 +226,19 @@ void TargetData::init(StringRef Desc) { /// /// @note This has to exist, because this is a pass, but it should never be /// used. -TargetData::TargetData() : ImmutablePass(&ID) { +TargetData::TargetData() : ImmutablePass(ID) { report_fatal_error("Bad TargetData ctor used. " "Tool did not specify a TargetData to use?"); } TargetData::TargetData(const Module *M) - : ImmutablePass(&ID) { + : ImmutablePass(ID) { init(M->getDataLayout()); } void -TargetData::setAlignment(AlignTypeEnum align_type, unsigned char abi_align, - unsigned char pref_align, uint32_t bit_width) { +TargetData::setAlignment(AlignTypeEnum align_type, unsigned abi_align, + unsigned pref_align, uint32_t bit_width) { assert(abi_align <= pref_align && "Preferred alignment worse than ABI!"); for (unsigned i = 0, e = Alignments.size(); i != e; ++i) { if (Alignments[i].AlignType == align_type && @@ -455,15 +454,6 @@ uint64_t TargetData::getTypeSizeInBits(const Type *Ty) const { case Type::StructTyID: // Get the layout annotation... which is lazily created on demand. return getStructLayout(cast<StructType>(Ty))->getSizeInBits(); - case Type::UnionTyID: { - const UnionType *UnTy = cast<UnionType>(Ty); - uint64_t Size = 0; - for (UnionType::element_iterator i = UnTy->element_begin(), - e = UnTy->element_end(); i != e; ++i) { - Size = std::max(Size, getTypeSizeInBits(*i)); - } - return Size; - } case Type::IntegerTyID: return cast<IntegerType>(Ty)->getBitWidth(); case Type::VoidTyID: @@ -496,7 +486,7 @@ uint64_t TargetData::getTypeSizeInBits(const Type *Ty) const { Get the ABI (\a abi_or_pref == true) or preferred alignment (\a abi_or_pref == false) for the requested type \a Ty. */ -unsigned char TargetData::getAlignment(const Type *Ty, bool abi_or_pref) const { +unsigned TargetData::getAlignment(const Type *Ty, bool abi_or_pref) const { int AlignType = -1; assert(Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!"); @@ -518,18 +508,7 @@ unsigned char TargetData::getAlignment(const Type *Ty, bool abi_or_pref) const { // Get the layout annotation... which is lazily created on demand. const StructLayout *Layout = getStructLayout(cast<StructType>(Ty)); unsigned Align = getAlignmentInfo(AGGREGATE_ALIGN, 0, abi_or_pref, Ty); - return std::max(Align, (unsigned)Layout->getAlignment()); - } - case Type::UnionTyID: { - const UnionType *UnTy = cast<UnionType>(Ty); - unsigned Align = 1; - - // Unions need the maximum alignment of all their entries - for (UnionType::element_iterator i = UnTy->element_begin(), - e = UnTy->element_end(); i != e; ++i) { - Align = std::max(Align, (unsigned)getAlignment(*i, abi_or_pref)); - } - return Align; + return std::max(Align, Layout->getAlignment()); } case Type::IntegerTyID: case Type::VoidTyID: @@ -556,18 +535,18 @@ unsigned char TargetData::getAlignment(const Type *Ty, bool abi_or_pref) const { abi_or_pref, Ty); } -unsigned char TargetData::getABITypeAlignment(const Type *Ty) const { +unsigned TargetData::getABITypeAlignment(const Type *Ty) const { return getAlignment(Ty, true); } /// getABIIntegerTypeAlignment - Return the minimum ABI-required alignment for /// an integer type of the specified bitwidth. -unsigned char TargetData::getABIIntegerTypeAlignment(unsigned BitWidth) const { +unsigned TargetData::getABIIntegerTypeAlignment(unsigned BitWidth) const { return getAlignmentInfo(INTEGER_ALIGN, BitWidth, true, 0); } -unsigned char TargetData::getCallFrameTypeAlignment(const Type *Ty) const { +unsigned TargetData::getCallFrameTypeAlignment(const Type *Ty) const { for (unsigned i = 0, e = Alignments.size(); i != e; ++i) if (Alignments[i].AlignType == STACK_ALIGN) return Alignments[i].ABIAlign; @@ -575,12 +554,12 @@ unsigned char TargetData::getCallFrameTypeAlignment(const Type *Ty) const { return getABITypeAlignment(Ty); } -unsigned char TargetData::getPrefTypeAlignment(const Type *Ty) const { +unsigned TargetData::getPrefTypeAlignment(const Type *Ty) const { return getAlignment(Ty, false); } -unsigned char TargetData::getPreferredTypeAlignmentShift(const Type *Ty) const { - unsigned Align = (unsigned) getPrefTypeAlignment(Ty); +unsigned TargetData::getPreferredTypeAlignmentShift(const Type *Ty) const { + unsigned Align = getPrefTypeAlignment(Ty); assert(!(Align & (Align-1)) && "Alignment is not a power of two!"); return Log2_32(Align); } @@ -615,18 +594,13 @@ uint64_t TargetData::getIndexedOffset(const Type *ptrTy, Value* const* Indices, // Update Ty to refer to current element Ty = STy->getElementType(FieldNo); - } else if (const UnionType *UnTy = dyn_cast<UnionType>(*TI)) { - unsigned FieldNo = cast<ConstantInt>(Indices[CurIDX])->getZExtValue(); - - // Offset into union is canonically 0, but type changes - Ty = UnTy->getElementType(FieldNo); } else { // Update Ty to refer to current element Ty = cast<SequentialType>(Ty)->getElementType(); // Get the array index and the size of each array element. if (int64_t arrayIdx = cast<ConstantInt>(Indices[CurIDX])->getSExtValue()) - Result += arrayIdx * (int64_t)getTypeAllocSize(Ty); + Result += (uint64_t)arrayIdx * getTypeAllocSize(Ty); } } |