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-rw-r--r--lib/Target/TargetData.cpp83
1 files changed, 23 insertions, 60 deletions
diff --git a/lib/Target/TargetData.cpp b/lib/Target/TargetData.cpp
index b1b78a8ada..5a189205ed 100644
--- a/lib/Target/TargetData.cpp
+++ b/lib/Target/TargetData.cpp
@@ -49,14 +49,13 @@ StructLayout::StructLayout(const StructType *ST, const TargetData &TD) {
// Loop over each of the elements, placing them in memory...
for (unsigned i = 0, e = NumElements; i != e; ++i) {
const Type *Ty = ST->getElementType(i);
- unsigned TyAlign;
- uint64_t TySize;
- TyAlign = (ST->isPacked() ? 1 : TD.getABITypeAlignment(Ty));
- TySize = TD.getTypeSize(Ty);
+ unsigned TyAlign = ST->isPacked() ?
+ 1 : TD.getABITypeAlignment(Ty);
+ uint64_t TySize = ST->isPacked() ?
+ TD.getTypeStoreSize(Ty) : TD.getABITypeSize(Ty);
- // Add padding if necessary to make the data element aligned properly...
- if (StructSize % TyAlign != 0)
- StructSize = (StructSize/TyAlign + 1) * TyAlign; // Add padding...
+ // Add padding if necessary to align the data element properly...
+ StructSize = (StructSize + TyAlign - 1)/TyAlign * TyAlign;
// Keep track of maximum alignment constraint
StructAlignment = std::max(TyAlign, StructAlignment);
@@ -406,83 +405,47 @@ std::string TargetData::getStringRepresentation() const {
}
-uint64_t TargetData::getTypeSize(const Type *Ty) const {
+uint64_t TargetData::getTypeSizeInBits(const Type *Ty) const {
assert(Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!");
switch (Ty->getTypeID()) {
case Type::LabelTyID:
case Type::PointerTyID:
- return getPointerSize();
+ return getPointerSizeInBits();
case Type::ArrayTyID: {
const ArrayType *ATy = cast<ArrayType>(Ty);
- uint64_t Size;
- unsigned char Alignment;
- Size = getTypeSize(ATy->getElementType());
- Alignment = getABITypeAlignment(ATy->getElementType());
- uint64_t AlignedSize = (Size + Alignment - 1)/Alignment*Alignment;
- return AlignedSize*ATy->getNumElements();
+ return getABITypeSizeInBits(ATy->getElementType())*ATy->getNumElements();
}
case Type::StructTyID: {
// Get the layout annotation... which is lazily created on demand.
const StructLayout *Layout = getStructLayout(cast<StructType>(Ty));
- return Layout->getSizeInBytes();
- }
- case Type::IntegerTyID: {
- unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
- if (BitWidth <= 8) {
- return 1;
- } else if (BitWidth <= 16) {
- return 2;
- } else if (BitWidth <= 32) {
- return 4;
- } else if (BitWidth <= 64) {
- return 8;
- } else {
- // The size of this > 64 bit type is chosen as a multiple of the
- // preferred alignment of the largest "native" size the target supports.
- // We first obtain the the alignment info for this type and then compute
- // the next largest multiple of that size.
- uint64_t size = getAlignmentInfo(INTEGER_ALIGN, BitWidth, false) * 8;
- return (((BitWidth / (size)) + (BitWidth % size != 0)) * size) / 8;
- }
- break;
+ return Layout->getSizeInBits();
}
+ case Type::IntegerTyID:
+ return cast<IntegerType>(Ty)->getBitWidth();
case Type::VoidTyID:
- return 1;
+ return 8;
case Type::FloatTyID:
- return 4;
+ return 32;
case Type::DoubleTyID:
- return 8;
+ return 64;
case Type::PPC_FP128TyID:
case Type::FP128TyID:
- return 16;
+ return 128;
// In memory objects this is always aligned to a higher boundary, but
- // only 10 bytes contain information.
+ // only 80 bits contain information.
case Type::X86_FP80TyID:
- return 10;
+ return 80;
case Type::VectorTyID: {
const VectorType *PTy = cast<VectorType>(Ty);
- return PTy->getBitWidth() / 8;
+ return PTy->getBitWidth();
}
default:
- assert(0 && "TargetData::getTypeSize(): Unsupported type");
+ assert(0 && "TargetData::getTypeSizeInBits(): Unsupported type");
break;
}
return 0;
}
-uint64_t TargetData::getTypeSizeInBits(const Type *Ty) const {
- if (Ty->isInteger())
- return cast<IntegerType>(Ty)->getBitWidth();
- else
- return getTypeSize(Ty) * 8;
-}
-
-uint64_t TargetData::getABITypeSizeInBits(const Type *Ty) const {
- if (Ty->isInteger())
- return cast<IntegerType>(Ty)->getBitWidth();
- else
- return getABITypeSize(Ty) * 8;
-}
/*!
\param abi_or_pref Flag that determines which alignment is returned. true
returns the ABI alignment, false returns the preferred alignment.
@@ -542,7 +505,7 @@ unsigned char TargetData::getAlignment(const Type *Ty, bool abi_or_pref) const {
break;
}
- return getAlignmentInfo((AlignTypeEnum)AlignType, getTypeSize(Ty) * 8,
+ return getAlignmentInfo((AlignTypeEnum)AlignType, getTypeSizeInBits(Ty),
abi_or_pref);
}
@@ -603,7 +566,7 @@ uint64_t TargetData::getIndexedOffset(const Type *ptrTy, Value* const* Indices,
// Get the array index and the size of each array element.
int64_t arrayIdx = cast<ConstantInt>(Indices[CurIDX])->getSExtValue();
- Result += arrayIdx * (int64_t)getTypeSize(Ty);
+ Result += arrayIdx * (int64_t)getABITypeSize(Ty);
}
}
@@ -623,7 +586,7 @@ unsigned TargetData::getPreferredAlignmentLog(const GlobalVariable *GV) const {
if (Alignment < 4) {
// If the global is not external, see if it is large. If so, give it a
// larger alignment.
- if (getTypeSize(ElemType) > 128)
+ if (getTypeSizeInBits(ElemType) > 128)
Alignment = 4; // 16-byte alignment.
}
}