// Handle the Pass registration stuff necessary to use DataLayout's.
// Register the default SparcV9 implementation...
-INITIALIZE_PASS(TargetData, "targetdata", "Target Data Layout", false, true)
+INITIALIZE_PASS(DataLayout, "datalayout", "Data Layout", false, true)
char DataLayout::ID = 0;
//===----------------------------------------------------------------------===//
}
//===----------------------------------------------------------------------===//
-// TargetAlignElem, TargetAlign support
+// LayoutAlignElem, LayoutAlign support
//===----------------------------------------------------------------------===//
-TargetAlignElem
-TargetAlignElem::get(AlignTypeEnum align_type, unsigned abi_align,
+LayoutAlignElem
+LayoutAlignElem::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;
+ LayoutAlignElem retval;
retval.AlignType = align_type;
retval.ABIAlign = abi_align;
retval.PrefAlign = pref_align;
}
bool
-TargetAlignElem::operator==(const TargetAlignElem &rhs) const {
+LayoutAlignElem::operator==(const LayoutAlignElem &rhs) const {
return (AlignType == rhs.AlignType
&& ABIAlign == rhs.ABIAlign
&& PrefAlign == rhs.PrefAlign
&& TypeBitWidth == rhs.TypeBitWidth);
}
-const TargetAlignElem
-DataLayout::InvalidAlignmentElem = { (AlignTypeEnum)0xFF, 0, 0, 0 };
+const LayoutAlignElem
+DataLayout::InvalidAlignmentElem =
+ LayoutAlignElem::get((AlignTypeEnum) -1, 0, 0, 0);
+
+//===----------------------------------------------------------------------===//
+// PointerAlignElem, PointerAlign support
+//===----------------------------------------------------------------------===//
+
+PointerAlignElem
+PointerAlignElem::get(uint32_t addr_space, unsigned abi_align,
+ unsigned pref_align, uint32_t bit_width) {
+ assert(abi_align <= pref_align && "Preferred alignment worse than ABI!");
+ PointerAlignElem retval;
+ retval.AddressSpace = addr_space;
+ retval.ABIAlign = abi_align;
+ retval.PrefAlign = pref_align;
+ retval.TypeBitWidth = bit_width;
+ return retval;
+}
+
+bool
+PointerAlignElem::operator==(const PointerAlignElem &rhs) const {
+ return (ABIAlign == rhs.ABIAlign
+ && AddressSpace == rhs.AddressSpace
+ && PrefAlign == rhs.PrefAlign
+ && TypeBitWidth == rhs.TypeBitWidth);
+}
+
+const PointerAlignElem
+DataLayout::InvalidPointerElem = PointerAlignElem::get(~0U, 0U, 0U, 0U);
//===----------------------------------------------------------------------===//
// DataLayout Class Implementation
}
void DataLayout::init() {
- initializeTargetDataPass(*PassRegistry::getPassRegistry());
+ initializeDataLayoutPass(*PassRegistry::getPassRegistry());
LayoutMap = 0;
LittleEndian = false;
- PointerMemSize = 8;
- PointerABIAlign = 8;
- PointerPrefAlign = PointerABIAlign;
StackNaturalAlign = 0;
// Default alignments
setAlignment(VECTOR_ALIGN, 8, 8, 64); // v2i32, v1i64, ...
setAlignment(VECTOR_ALIGN, 16, 16, 128); // v16i8, v8i16, v4i32, ...
setAlignment(AGGREGATE_ALIGN, 0, 8, 0); // struct
+ setPointerAlignment(0, 8, 8, 8);
}
std::string DataLayout::parseSpecifier(StringRef Desc, DataLayout *td) {
td->LittleEndian = true;
break;
case 'p': {
- // Pointer size.
+ int AddrSpace = 0;
+ if (Specifier.size() > 1) {
+ AddrSpace = getInt(Specifier.substr(1));
+ if (AddrSpace < 0 || AddrSpace > (1 << 24))
+ return "Invalid address space, must be a positive 24bit integer";
+ }
Split = Token.split(':');
int PointerMemSizeBits = getInt(Split.first);
if (PointerMemSizeBits < 0 || PointerMemSizeBits % 8 != 0)
return "invalid pointer size, must be a positive 8-bit multiple";
- if (td)
- td->PointerMemSize = PointerMemSizeBits / 8;
// Pointer ABI alignment.
Split = Split.second.split(':');
return "invalid pointer ABI alignment, "
"must be a positive 8-bit multiple";
}
- if (td)
- td->PointerABIAlign = PointerABIAlignBits / 8;
// Pointer preferred alignment.
Split = Split.second.split(':');
return "invalid pointer preferred alignment, "
"must be a positive 8-bit multiple";
}
- if (td) {
- td->PointerPrefAlign = PointerPrefAlignBits / 8;
- if (td->PointerPrefAlign == 0)
- td->PointerPrefAlign = td->PointerABIAlign;
- }
+
+ if (PointerPrefAlignBits == 0)
+ PointerPrefAlignBits = PointerABIAlignBits;
+ if (td)
+ td->setPointerAlignment(AddrSpace, PointerABIAlignBits/8,
+ PointerPrefAlignBits/8, PointerMemSizeBits/8);
break;
}
case 'i':
unsigned PrefAlign = PrefAlignBits / 8;
if (PrefAlign == 0)
PrefAlign = ABIAlign;
-
+
if (td)
td->setAlignment(AlignType, ABIAlign, PrefAlign, Size);
break;
do {
int Width = getInt(Specifier);
if (Width <= 0) {
- return std::string("invalid native integer size \'") + Specifier.str() +
- "\', must be a positive integer.";
+ return std::string("invalid native integer size \'") +
+ Specifier.str() + "\', must be a positive integer.";
}
if (td && Width != 0)
td->LegalIntWidths.push_back(Width);
DataLayout::DataLayout(const Module *M)
: ImmutablePass(ID) {
std::string errMsg = parseSpecifier(M->getDataLayout(), this);
- assert(errMsg == "" && "Module M has malformed target data layout string.");
+ assert(errMsg == "" && "Module M has malformed data layout string.");
(void)errMsg;
}
assert(pref_align < (1 << 16) && "Alignment doesn't fit in bitfield");
assert(bit_width < (1 << 24) && "Bit width doesn't fit in bitfield");
for (unsigned i = 0, e = Alignments.size(); i != e; ++i) {
- if (Alignments[i].AlignType == align_type &&
+ if (Alignments[i].AlignType == (unsigned)align_type &&
Alignments[i].TypeBitWidth == bit_width) {
// Update the abi, preferred alignments.
Alignments[i].ABIAlign = abi_align;
}
}
- Alignments.push_back(TargetAlignElem::get(align_type, abi_align,
+ Alignments.push_back(LayoutAlignElem::get(align_type, abi_align,
pref_align, bit_width));
}
+void
+DataLayout::setPointerAlignment(uint32_t addr_space, unsigned abi_align,
+ unsigned pref_align, uint32_t bit_width) {
+ assert(abi_align <= pref_align && "Preferred alignment worse than ABI!");
+ DenseMap<unsigned,PointerAlignElem>::iterator val = Pointers.find(addr_space);
+ if (val == Pointers.end()) {
+ Pointers[addr_space] = PointerAlignElem::get(addr_space,
+ abi_align, pref_align, bit_width);
+ } else {
+ val->second.ABIAlign = abi_align;
+ val->second.PrefAlign = pref_align;
+ val->second.TypeBitWidth = bit_width;
+ }
+}
+
/// getAlignmentInfo - Return the alignment (either ABI if ABIInfo = true or
-/// preferred if ABIInfo = false) the target wants for the specified datatype.
+/// preferred if ABIInfo = false) the layout wants for the specified datatype.
unsigned DataLayout::getAlignmentInfo(AlignTypeEnum AlignType,
uint32_t BitWidth, bool ABIInfo,
Type *Ty) const {
int BestMatchIdx = -1;
int LargestInt = -1;
for (unsigned i = 0, e = Alignments.size(); i != e; ++i) {
- if (Alignments[i].AlignType == AlignType &&
+ if (Alignments[i].AlignType == (unsigned)AlignType &&
Alignments[i].TypeBitWidth == BitWidth)
return ABIInfo ? Alignments[i].ABIAlign : Alignments[i].PrefAlign;
std::string Result;
raw_string_ostream OS(Result);
- OS << (LittleEndian ? "e" : "E")
- << "-p:" << PointerMemSize*8 << ':' << PointerABIAlign*8
- << ':' << PointerPrefAlign*8
- << "-S" << StackNaturalAlign*8;
+ OS << (LittleEndian ? "e" : "E");
+ SmallVector<unsigned, 8> addrSpaces;
+ // Lets get all of the known address spaces and sort them
+ // into increasing order so that we can emit the string
+ // in a cleaner format.
+ for (DenseMap<unsigned, PointerAlignElem>::const_iterator
+ pib = Pointers.begin(), pie = Pointers.end();
+ pib != pie; ++pib) {
+ addrSpaces.push_back(pib->first);
+ }
+ std::sort(addrSpaces.begin(), addrSpaces.end());
+ for (SmallVector<unsigned, 8>::iterator asb = addrSpaces.begin(),
+ ase = addrSpaces.end(); asb != ase; ++asb) {
+ const PointerAlignElem &PI = Pointers.find(*asb)->second;
+ OS << "-p";
+ if (PI.AddressSpace) {
+ OS << PI.AddressSpace;
+ }
+ OS << ":" << PI.TypeBitWidth*8 << ':' << PI.ABIAlign*8
+ << ':' << PI.PrefAlign*8;
+ }
+ OS << "-S" << StackNaturalAlign*8;
for (unsigned i = 0, e = Alignments.size(); i != e; ++i) {
- const TargetAlignElem &AI = Alignments[i];
+ const LayoutAlignElem &AI = Alignments[i];
OS << '-' << (char)AI.AlignType << AI.TypeBitWidth << ':'
<< AI.ABIAlign*8 << ':' << AI.PrefAlign*8;
}
assert(Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!");
switch (Ty->getTypeID()) {
case Type::LabelTyID:
- case Type::PointerTyID:
- return getPointerSizeInBits();
+ return getPointerSizeInBits(0);
+ case Type::PointerTyID: {
+ unsigned AS = dyn_cast<PointerType>(Ty)->getAddressSpace();
+ return getPointerSizeInBits(AS);
+ }
case Type::ArrayTyID: {
ArrayType *ATy = cast<ArrayType>(Ty);
return getTypeAllocSizeInBits(ATy->getElementType())*ATy->getNumElements();
switch (Ty->getTypeID()) {
// Early escape for the non-numeric types.
case Type::LabelTyID:
- case Type::PointerTyID:
return (abi_or_pref
- ? getPointerABIAlignment()
- : getPointerPrefAlignment());
+ ? getPointerABIAlignment(0)
+ : getPointerPrefAlignment(0));
+ case Type::PointerTyID: {
+ unsigned AS = dyn_cast<PointerType>(Ty)->getAddressSpace();
+ return (abi_or_pref
+ ? getPointerABIAlignment(AS)
+ : getPointerPrefAlignment(AS));
+ }
case Type::ArrayTyID:
return getAlignment(cast<ArrayType>(Ty)->getElementType(), abi_or_pref);
/// getIntPtrType - Return an unsigned integer type that is the same size or
/// greater to the host pointer size.
-IntegerType *DataLayout::getIntPtrType(LLVMContext &C) const {
- return IntegerType::get(C, getPointerSizeInBits());
+IntegerType *DataLayout::getIntPtrType(LLVMContext &C,
+ unsigned AddressSpace) const {
+ return IntegerType::get(C, getPointerSizeInBits(AddressSpace));
}
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