-//===-- Attribute.cpp - Implement AttributesList -------------------------===//
+//===-- Attributes.cpp - Implement AttributesList -------------------------===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// This file implements the Attribute, AttributeImpl, AttrBuilder,
+// \file
+// \brief This file implements the Attribute, AttributeImpl, AttrBuilder,
// AttributeSetImpl, and AttributeSet classes.
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/Attributes.h"
#include "AttributeImpl.h"
#include "LLVMContextImpl.h"
-#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/Atomic.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
-// Attribute Implementation
+// Attribute Construction Methods
//===----------------------------------------------------------------------===//
-Attribute Attribute::get(LLVMContext &Context, ArrayRef<AttrKind> Kinds) {
- AttrBuilder B;
- for (ArrayRef<AttrKind>::iterator I = Kinds.begin(), E = Kinds.end();
- I != E; ++I)
- B.addAttribute(*I);
- return Attribute::get(Context, B);
-}
-
-Attribute Attribute::get(LLVMContext &Context, AttrBuilder &B) {
- // If there are no attributes, return an empty Attribute class.
- if (!B.hasAttributes())
- return Attribute();
-
- // Otherwise, build a key to look up the existing attributes.
+Attribute Attribute::get(LLVMContext &Context, Constant *Kind, Constant *Val) {
LLVMContextImpl *pImpl = Context.pImpl;
FoldingSetNodeID ID;
- ID.AddInteger(B.Raw());
+ ID.AddPointer(Kind);
+ if (Val) ID.AddPointer(Val);
void *InsertPoint;
AttributeImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
if (!PA) {
// If we didn't find any existing attributes of the same shape then create a
// new one and insert it.
- PA = new AttributeImpl(Context, B.Raw());
+ PA = new AttributeImpl(Context, Kind, Val);
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
}
- // Return the AttributesList that we found or created.
+ // Return the Attribute that we found or created.
return Attribute(PA);
}
+Attribute Attribute::get(LLVMContext &Context, AttrKind Kind, Constant *Val) {
+ ConstantInt *KindVal = ConstantInt::get(Type::getInt64Ty(Context), Kind);
+ return get(Context, KindVal, Val);
+}
+
Attribute Attribute::getWithAlignment(LLVMContext &Context, uint64_t Align) {
- AttrBuilder B;
- return get(Context, B.addAlignmentAttr(Align));
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x40000000 && "Alignment too large.");
+ return get(Context, Alignment,
+ ConstantInt::get(Type::getInt64Ty(Context), Align));
}
Attribute Attribute::getWithStackAlignment(LLVMContext &Context,
uint64_t Align) {
- AttrBuilder B;
- return get(Context, B.addStackAlignmentAttr(Align));
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x100 && "Alignment too large.");
+ return get(Context, StackAlignment,
+ ConstantInt::get(Type::getInt64Ty(Context), Align));
}
+//===----------------------------------------------------------------------===//
+// Attribute Accessor Methods
+//===----------------------------------------------------------------------===//
+
bool Attribute::hasAttribute(AttrKind Val) const {
return pImpl && pImpl->hasAttribute(Val);
}
-bool Attribute::hasAttributes() const {
- return pImpl && pImpl->hasAttributes();
+Constant *Attribute::getAttributeKind() const {
+ return pImpl ? pImpl->getAttributeKind() : 0;
+}
+
+Constant *Attribute::getAttributeValues() const {
+ return pImpl ? pImpl->getAttributeValues() : 0;
}
/// This returns the alignment field of an attribute as a byte alignment value.
unsigned Attribute::getAlignment() const {
- if (!hasAttribute(Attribute::Alignment))
- return 0;
+ assert(hasAttribute(Attribute::Alignment) &&
+ "Trying to get alignment from non-alignment attribute!");
return pImpl->getAlignment();
}
/// This returns the stack alignment field of an attribute as a byte alignment
/// value.
unsigned Attribute::getStackAlignment() const {
- if (!hasAttribute(Attribute::StackAlignment))
- return 0;
+ assert(hasAttribute(Attribute::StackAlignment) &&
+ "Trying to get alignment from non-alignment attribute!");
return pImpl->getStackAlignment();
}
-bool Attribute::operator==(AttrKind K) const {
- return pImpl && *pImpl == K;
-}
-bool Attribute::operator!=(AttrKind K) const {
- return !(*this == K);
-}
-
-bool Attribute::operator<(Attribute A) const {
- if (!pImpl && !A.pImpl) return false;
- if (!pImpl) return true;
- if (!A.pImpl) return false;
- return *pImpl < *A.pImpl;
-}
-
-uint64_t Attribute::Raw() const {
- return pImpl ? pImpl->Raw() : 0;
-}
-
std::string Attribute::getAsString() const {
- std::string Result;
- if (hasAttribute(Attribute::ZExt))
- Result += "zeroext ";
- if (hasAttribute(Attribute::SExt))
- Result += "signext ";
- if (hasAttribute(Attribute::NoReturn))
- Result += "noreturn ";
- if (hasAttribute(Attribute::NoUnwind))
- Result += "nounwind ";
- if (hasAttribute(Attribute::UWTable))
- Result += "uwtable ";
- if (hasAttribute(Attribute::ReturnsTwice))
- Result += "returns_twice ";
+ if (!pImpl) return "";
+
+ if (hasAttribute(Attribute::AddressSafety))
+ return "address_safety";
+ if (hasAttribute(Attribute::AlwaysInline))
+ return "alwaysinline";
+ if (hasAttribute(Attribute::ByVal))
+ return "byval";
+ if (hasAttribute(Attribute::InlineHint))
+ return "inlinehint";
if (hasAttribute(Attribute::InReg))
- Result += "inreg ";
+ return "inreg";
+ if (hasAttribute(Attribute::MinSize))
+ return "minsize";
+ if (hasAttribute(Attribute::Naked))
+ return "naked";
+ if (hasAttribute(Attribute::Nest))
+ return "nest";
if (hasAttribute(Attribute::NoAlias))
- Result += "noalias ";
+ return "noalias";
if (hasAttribute(Attribute::NoCapture))
- Result += "nocapture ";
- if (hasAttribute(Attribute::StructRet))
- Result += "sret ";
- if (hasAttribute(Attribute::ByVal))
- Result += "byval ";
- if (hasAttribute(Attribute::Nest))
- Result += "nest ";
+ return "nocapture";
+ if (hasAttribute(Attribute::NoDuplicate))
+ return "noduplicate";
+ if (hasAttribute(Attribute::NoImplicitFloat))
+ return "noimplicitfloat";
+ if (hasAttribute(Attribute::NoInline))
+ return "noinline";
+ if (hasAttribute(Attribute::NonLazyBind))
+ return "nonlazybind";
+ if (hasAttribute(Attribute::NoRedZone))
+ return "noredzone";
+ if (hasAttribute(Attribute::NoReturn))
+ return "noreturn";
+ if (hasAttribute(Attribute::NoUnwind))
+ return "nounwind";
+ if (hasAttribute(Attribute::OptimizeForSize))
+ return "optsize";
if (hasAttribute(Attribute::ReadNone))
- Result += "readnone ";
+ return "readnone";
if (hasAttribute(Attribute::ReadOnly))
- Result += "readonly ";
- if (hasAttribute(Attribute::OptimizeForSize))
- Result += "optsize ";
- if (hasAttribute(Attribute::NoInline))
- Result += "noinline ";
- if (hasAttribute(Attribute::InlineHint))
- Result += "inlinehint ";
- if (hasAttribute(Attribute::AlwaysInline))
- Result += "alwaysinline ";
+ return "readonly";
+ if (hasAttribute(Attribute::ReturnsTwice))
+ return "returns_twice";
+ if (hasAttribute(Attribute::SExt))
+ return "signext";
if (hasAttribute(Attribute::StackProtect))
- Result += "ssp ";
+ return "ssp";
if (hasAttribute(Attribute::StackProtectReq))
- Result += "sspreq ";
+ return "sspreq";
if (hasAttribute(Attribute::StackProtectStrong))
- Result += "sspstrong ";
- if (hasAttribute(Attribute::NoRedZone))
- Result += "noredzone ";
- if (hasAttribute(Attribute::NoImplicitFloat))
- Result += "noimplicitfloat ";
- if (hasAttribute(Attribute::Naked))
- Result += "naked ";
- if (hasAttribute(Attribute::NonLazyBind))
- Result += "nonlazybind ";
- if (hasAttribute(Attribute::AddressSafety))
- Result += "address_safety ";
- if (hasAttribute(Attribute::MinSize))
- Result += "minsize ";
+ return "sspstrong";
+ if (hasAttribute(Attribute::StructRet))
+ return "sret";
+ if (hasAttribute(Attribute::UWTable))
+ return "uwtable";
+ if (hasAttribute(Attribute::ZExt))
+ return "zeroext";
+
+ // FIXME: These should be output like this:
+ //
+ // align=4
+ // alignstack=8
+ //
if (hasAttribute(Attribute::StackAlignment)) {
+ std::string Result;
Result += "alignstack(";
Result += utostr(getStackAlignment());
- Result += ") ";
+ Result += ")";
+ return Result;
}
if (hasAttribute(Attribute::Alignment)) {
+ std::string Result;
Result += "align ";
Result += utostr(getAlignment());
- Result += " ";
- }
- if (hasAttribute(Attribute::NoDuplicate))
- Result += "noduplicate ";
- // Trim the trailing space.
- assert(!Result.empty() && "Unknown attribute!");
- Result.erase(Result.end()-1);
- return Result;
-}
-
-//===----------------------------------------------------------------------===//
-// AttrBuilder Method Implementations
-//===----------------------------------------------------------------------===//
-
-AttrBuilder::AttrBuilder(AttributeSet AS, unsigned Idx)
- : Alignment(0), StackAlignment(0) {
- AttributeSetImpl *pImpl = AS.pImpl;
- if (!pImpl) return;
-
- AttrBuilder B;
-
- for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
- if (pImpl->getSlotIndex(I) != Idx) continue;
-
- for (AttributeSetNode::const_iterator II = pImpl->begin(I),
- IE = pImpl->end(I); II != IE; ++II)
- B.addAttributes(*II);
-
- break;
- }
-
- if (!B.hasAttributes()) return;
-
- uint64_t Mask = B.Raw();
-
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1)) {
- if (uint64_t A = (Mask & AttributeImpl::getAttrMask(I))) {
- Attrs.insert(I);
-
- if (I == Attribute::Alignment)
- Alignment = 1ULL << ((A >> 16) - 1);
- else if (I == Attribute::StackAlignment)
- StackAlignment = 1ULL << ((A >> 26)-1);
- }
- }
-}
-
-void AttrBuilder::clear() {
- Attrs.clear();
- Alignment = StackAlignment = 0;
-}
-
-AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Val) {
- Attrs.insert(Val);
- return *this;
-}
-
-AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
- Attrs.erase(Val);
- if (Val == Attribute::Alignment)
- Alignment = 0;
- else if (Val == Attribute::StackAlignment)
- StackAlignment = 0;
-
- return *this;
-}
-
-AttrBuilder &AttrBuilder::addAlignmentAttr(unsigned Align) {
- if (Align == 0) return *this;
-
- assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
- assert(Align <= 0x40000000 && "Alignment too large.");
-
- Attrs.insert(Attribute::Alignment);
- Alignment = Align;
- return *this;
-}
-
-AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align) {
- // Default alignment, allow the target to define how to align it.
- if (Align == 0) return *this;
-
- assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
- assert(Align <= 0x100 && "Alignment too large.");
-
- Attrs.insert(Attribute::StackAlignment);
- StackAlignment = Align;
- return *this;
-}
-
-AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1)) {
- if (uint64_t A = (Val & AttributeImpl::getAttrMask(I))) {
- Attrs.insert(I);
-
- if (I == Attribute::Alignment)
- Alignment = 1ULL << ((A >> 16) - 1);
- else if (I == Attribute::StackAlignment)
- StackAlignment = 1ULL << ((A >> 26)-1);
- }
+ return Result;
}
-
- return *this;
-}
-AttrBuilder &AttrBuilder::addAttributes(const Attribute &Attr) {
- uint64_t Mask = Attr.Raw();
+ // Convert target-dependent attributes to strings of the form:
+ //
+ // "kind"
+ // "kind" = "value"
+ // "kind" = ( "value1" "value2" "value3" )
+ //
+ if (ConstantDataArray *CDA =
+ dyn_cast<ConstantDataArray>(pImpl->getAttributeKind())) {
+ std::string Result;
+ Result += '\"' + CDA->getAsString().str() + '"';
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1))
- if ((Mask & AttributeImpl::getAttrMask(I)) != 0)
- Attrs.insert(I);
-
- if (Attr.getAlignment())
- Alignment = Attr.getAlignment();
- if (Attr.getStackAlignment())
- StackAlignment = Attr.getStackAlignment();
- return *this;
-}
+ Constant *Vals = pImpl->getAttributeValues();
+ if (!Vals) return Result;
-AttrBuilder &AttrBuilder::removeAttributes(const Attribute &A){
- uint64_t Mask = A.Raw();
+ // FIXME: This should support more than just ConstantDataArrays. Also,
+ // support a vector of attribute values.
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1)) {
- if (Mask & AttributeImpl::getAttrMask(I)) {
- Attrs.erase(I);
+ Result += " = ";
+ Result += '\"' + cast<ConstantDataArray>(Vals)->getAsString().str() + '"';
- if (I == Attribute::Alignment)
- Alignment = 0;
- else if (I == Attribute::StackAlignment)
- StackAlignment = 0;
- }
+ return Result;
}
- return *this;
-}
-
-bool AttrBuilder::contains(Attribute::AttrKind A) const {
- return Attrs.count(A);
-}
-
-bool AttrBuilder::hasAttributes() const {
- return !Attrs.empty();
-}
-
-bool AttrBuilder::hasAttributes(const Attribute &A) const {
- return Raw() & A.Raw();
+ llvm_unreachable("Unknown attribute");
}
-bool AttrBuilder::hasAlignmentAttr() const {
- return Alignment != 0;
+bool Attribute::operator==(AttrKind K) const {
+ return (pImpl && *pImpl == K) || (!pImpl && K == None);
}
-
-uint64_t AttrBuilder::Raw() const {
- uint64_t Mask = 0;
-
- for (DenseSet<Attribute::AttrKind>::const_iterator I = Attrs.begin(),
- E = Attrs.end(); I != E; ++I) {
- Attribute::AttrKind Kind = *I;
-
- if (Kind == Attribute::Alignment)
- Mask |= (Log2_32(Alignment) + 1) << 16;
- else if (Kind == Attribute::StackAlignment)
- Mask |= (Log2_32(StackAlignment) + 1) << 26;
- else
- Mask |= AttributeImpl::getAttrMask(Kind);
- }
-
- return Mask;
+bool Attribute::operator!=(AttrKind K) const {
+ return !(*this == K);
}
-bool AttrBuilder::operator==(const AttrBuilder &B) {
- SmallVector<Attribute::AttrKind, 8> This(Attrs.begin(), Attrs.end());
- SmallVector<Attribute::AttrKind, 8> That(B.Attrs.begin(), B.Attrs.end());
- return This == That;
+bool Attribute::operator<(Attribute A) const {
+ if (!pImpl && !A.pImpl) return false;
+ if (!pImpl) return true;
+ if (!A.pImpl) return false;
+ return *pImpl < *A.pImpl;
}
//===----------------------------------------------------------------------===//
// AttributeImpl Definition
//===----------------------------------------------------------------------===//
-AttributeImpl::AttributeImpl(LLVMContext &C, uint64_t data)
- : Context(C) {
- Data = ConstantInt::get(Type::getInt64Ty(C), data);
-}
-AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind data)
- : Context(C) {
- Data = ConstantInt::get(Type::getInt64Ty(C), data);
+bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(Kind))
+ return CI->getZExtValue() == A;
+ return false;
}
-AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind data,
- ArrayRef<Constant*> values)
- : Context(C) {
- Data = ConstantInt::get(Type::getInt64Ty(C), data);
- Vals.reserve(values.size());
- Vals.append(values.begin(), values.end());
+
+uint64_t AttributeImpl::getAlignment() const {
+ assert(hasAttribute(Attribute::Alignment) &&
+ "Trying to retrieve the alignment from a non-alignment attr!");
+ return cast<ConstantInt>(Values)->getZExtValue();
}
-AttributeImpl::AttributeImpl(LLVMContext &C, StringRef data)
- : Context(C) {
- Data = ConstantDataArray::getString(C, data);
+
+uint64_t AttributeImpl::getStackAlignment() const {
+ assert(hasAttribute(Attribute::StackAlignment) &&
+ "Trying to retrieve the stack alignment from a non-alignment attr!");
+ return cast<ConstantInt>(Values)->getZExtValue();
}
-bool AttributeImpl::operator==(Attribute::AttrKind Kind) const {
- if (ConstantInt *CI = dyn_cast<ConstantInt>(Data))
- return CI->getZExtValue() == Kind;
+bool AttributeImpl::operator==(Attribute::AttrKind kind) const {
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(Kind))
+ return CI->getZExtValue() == kind;
return false;
}
-bool AttributeImpl::operator!=(Attribute::AttrKind Kind) const {
- return !(*this == Kind);
+bool AttributeImpl::operator!=(Attribute::AttrKind kind) const {
+ return !(*this == kind);
}
-bool AttributeImpl::operator==(StringRef Kind) const {
- if (ConstantDataArray *CDA = dyn_cast<ConstantDataArray>(Data))
+bool AttributeImpl::operator==(StringRef kind) const {
+ if (ConstantDataArray *CDA = dyn_cast<ConstantDataArray>(Kind))
if (CDA->isString())
- return CDA->getAsString() == Kind;
+ return CDA->getAsString() == kind;
return false;
}
-bool AttributeImpl::operator!=(StringRef Kind) const {
- return !(*this == Kind);
+bool AttributeImpl::operator!=(StringRef kind) const {
+ return !(*this == kind);
}
bool AttributeImpl::operator<(const AttributeImpl &AI) const {
- if (!Data && !AI.Data) return false;
- if (!Data && AI.Data) return true;
- if (Data && !AI.Data) return false;
+ // This sorts the attributes with Attribute::AttrKinds coming first (sorted
+ // relative to their enum value) and then strings.
+
+ if (!Kind && !AI.Kind) return false;
+ if (!Kind && AI.Kind) return true;
+ if (Kind && !AI.Kind) return false;
- ConstantInt *ThisCI = dyn_cast<ConstantInt>(Data);
- ConstantInt *ThatCI = dyn_cast<ConstantInt>(AI.Data);
+ ConstantInt *ThisCI = dyn_cast<ConstantInt>(Kind);
+ ConstantInt *ThatCI = dyn_cast<ConstantInt>(AI.Kind);
- ConstantDataArray *ThisCDA = dyn_cast<ConstantDataArray>(Data);
- ConstantDataArray *ThatCDA = dyn_cast<ConstantDataArray>(AI.Data);
+ ConstantDataArray *ThisCDA = dyn_cast<ConstantDataArray>(Kind);
+ ConstantDataArray *ThatCDA = dyn_cast<ConstantDataArray>(AI.Kind);
if (ThisCI && ThatCI)
return ThisCI->getZExtValue() < ThatCI->getZExtValue();
return ThisCDA->getAsString() < ThatCDA->getAsString();
}
-uint64_t AttributeImpl::Raw() const {
- // FIXME: Remove this.
- return cast<ConstantInt>(Data)->getZExtValue();
-}
-
uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) {
+ // FIXME: Remove this.
switch (Val) {
case Attribute::EndAttrKinds:
case Attribute::AttrKindEmptyKey:
llvm_unreachable("Unsupported attribute type");
}
-bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
- return (Raw() & getAttrMask(A)) != 0;
-}
-
-bool AttributeImpl::hasAttributes() const {
- return Raw() != 0;
-}
-
-uint64_t AttributeImpl::getAlignment() const {
- uint64_t Mask = Raw() & getAttrMask(Attribute::Alignment);
- return 1ULL << ((Mask >> 16) - 1);
-}
-
-uint64_t AttributeImpl::getStackAlignment() const {
- uint64_t Mask = Raw() & getAttrMask(Attribute::StackAlignment);
- return 1ULL << ((Mask >> 26) - 1);
-}
-
-void AttributeImpl::Profile(FoldingSetNodeID &ID, Constant *Data,
- ArrayRef<Constant*> Vals) {
- ID.AddInteger(cast<ConstantInt>(Data)->getZExtValue());
-#if 0
- // FIXME: Not yet supported.
- for (ArrayRef<Constant*>::iterator I = Vals.begin(), E = Vals.end();
- I != E; ++I)
- ID.AddPointer(*I);
-#endif
-}
-
//===----------------------------------------------------------------------===//
// AttributeSetNode Definition
//===----------------------------------------------------------------------===//
return PA;
}
-//===----------------------------------------------------------------------===//
-// AttributeSetImpl Definition
-//===----------------------------------------------------------------------===//
+bool AttributeSetNode::hasAttribute(Attribute::AttrKind Kind) const {
+ for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
+ E = AttrList.end(); I != E; ++I)
+ if (I->hasAttribute(Kind))
+ return true;
+ return false;
+}
-AttributeSetImpl::
-AttributeSetImpl(LLVMContext &C,
- ArrayRef<AttributeWithIndex> attrs)
- : Context(C), AttrList(attrs.begin(), attrs.end()) {
- for (unsigned I = 0, E = attrs.size(); I != E; ++I) {
- const AttributeWithIndex &AWI = attrs[I];
- uint64_t Mask = AWI.Attrs.Raw();
- SmallVector<Attribute, 8> Attrs;
-
- for (Attribute::AttrKind II = Attribute::None;
- II != Attribute::EndAttrKinds; II = Attribute::AttrKind(II + 1)) {
- if (uint64_t A = (Mask & AttributeImpl::getAttrMask(II))) {
- AttrBuilder B;
-
- if (II == Attribute::Alignment)
- B.addAlignmentAttr(1ULL << ((A >> 16) - 1));
- else if (II == Attribute::StackAlignment)
- B.addStackAlignmentAttr(1ULL << ((A >> 26) - 1));
- else
- B.addAttribute(II);
-
- Attrs.push_back(Attribute::get(C, B));
- }
- }
+unsigned AttributeSetNode::getAlignment() const {
+ for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
+ E = AttrList.end(); I != E; ++I)
+ if (I->hasAttribute(Attribute::Alignment))
+ return I->getAlignment();
+ return 0;
+}
- AttrNodes.push_back(std::make_pair(AWI.Index,
- AttributeSetNode::get(C, Attrs)));
- }
+unsigned AttributeSetNode::getStackAlignment() const {
+ for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
+ E = AttrList.end(); I != E; ++I)
+ if (I->hasAttribute(Attribute::StackAlignment))
+ return I->getStackAlignment();
+ return 0;
+}
- assert(AttrNodes.size() == AttrList.size() &&
- "Number of attributes is different between lists!");
-#ifndef NDEBUG
- for (unsigned I = 0, E = AttrNodes.size(); I != E; ++I)
- assert((I == 0 || AttrNodes[I - 1].first < AttrNodes[I].first) &&
- "Attributes not in ascending order!");
-#endif
+std::string AttributeSetNode::getAsString() const {
+ std::string Str = "";
+ for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
+ E = AttrList.end(); I != E; ) {
+ Str += I->getAsString();
+ if (++I != E) Str += " ";
+ }
+ return Str;
}
+//===----------------------------------------------------------------------===//
+// AttributeSetImpl Definition
+//===----------------------------------------------------------------------===//
+
uint64_t AttributeSetImpl::Raw(uint64_t Index) const {
for (unsigned I = 0, E = getNumAttributes(); I != E; ++I) {
if (getSlotIndex(I) != Index) continue;
const AttributeSetNode *ASN = AttrNodes[I].second;
- AttrBuilder B;
+ uint64_t Mask = 0;
for (AttributeSetNode::const_iterator II = ASN->begin(),
- IE = ASN->end(); II != IE; ++II)
- B.addAttributes(*II);
+ IE = ASN->end(); II != IE; ++II) {
+ Attribute Attr = *II;
+ ConstantInt *Kind = cast<ConstantInt>(Attr.getAttributeKind());
+ Attribute::AttrKind KindVal = Attribute::AttrKind(Kind->getZExtValue());
+
+ if (KindVal == Attribute::Alignment)
+ Mask |= (Log2_32(ASN->getAlignment()) + 1) << 16;
+ else if (KindVal == Attribute::StackAlignment)
+ Mask |= (Log2_32(ASN->getStackAlignment()) + 1) << 26;
+ else
+ Mask |= AttributeImpl::getAttrMask(KindVal);
+ }
- assert(B.Raw() == AttrList[I].Attrs.Raw() &&
- "Attributes aren't the same!");
- return B.Raw();
+ return Mask;
}
return 0;
}
//===----------------------------------------------------------------------===//
-// AttributeSet Method Implementations
+// AttributeSet Construction and Mutation Methods
//===----------------------------------------------------------------------===//
-AttributeSet AttributeSet::getParamAttributes(unsigned Idx) const {
- // FIXME: Remove.
- return pImpl && hasAttributes(Idx) ?
- AttributeSet::get(pImpl->getContext(),
- AttributeWithIndex::get(Idx, getAttributes(Idx))) :
- AttributeSet();
-}
+AttributeSet
+AttributeSet::getImpl(LLVMContext &C,
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> > Attrs) {
+ LLVMContextImpl *pImpl = C.pImpl;
+ FoldingSetNodeID ID;
+ AttributeSetImpl::Profile(ID, Attrs);
-AttributeSet AttributeSet::getRetAttributes() const {
- // FIXME: Remove.
- return pImpl && hasAttributes(ReturnIndex) ?
- AttributeSet::get(pImpl->getContext(),
- AttributeWithIndex::get(ReturnIndex,
- getAttributes(ReturnIndex))) :
- AttributeSet();
-}
+ void *InsertPoint;
+ AttributeSetImpl *PA = pImpl->AttrsLists.FindNodeOrInsertPos(ID, InsertPoint);
-AttributeSet AttributeSet::getFnAttributes() const {
- // FIXME: Remove.
- return pImpl && hasAttributes(FunctionIndex) ?
- AttributeSet::get(pImpl->getContext(),
- AttributeWithIndex::get(FunctionIndex,
- getAttributes(FunctionIndex))) :
- AttributeSet();
+ // If we didn't find any existing attributes of the same shape then
+ // create a new one and insert it.
+ if (!PA) {
+ PA = new AttributeSetImpl(C, Attrs);
+ pImpl->AttrsLists.InsertNode(PA, InsertPoint);
+ }
+
+ // Return the AttributesList that we found or created.
+ return AttributeSet(PA);
}
AttributeSet AttributeSet::get(LLVMContext &C,
- ArrayRef<AttributeWithIndex> Attrs) {
+ ArrayRef<std::pair<unsigned, Attribute> > Attrs){
// If there are no attributes then return a null AttributesList pointer.
if (Attrs.empty())
return AttributeSet();
#ifndef NDEBUG
for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
- assert(Attrs[i].Attrs.hasAttributes() &&
+ assert((!i || Attrs[i-1].first <= Attrs[i].first) &&
+ "Misordered Attributes list!");
+ assert(Attrs[i].second != Attribute::None &&
"Pointless attribute!");
- assert((!i || Attrs[i-1].Index < Attrs[i].Index) &&
- "Misordered AttributesList!");
}
#endif
- // Otherwise, build a key to look up the existing attributes.
- LLVMContextImpl *pImpl = C.pImpl;
- FoldingSetNodeID ID;
- AttributeSetImpl::Profile(ID, Attrs);
-
- void *InsertPoint;
- AttributeSetImpl *PA = pImpl->AttrsLists.FindNodeOrInsertPos(ID, InsertPoint);
+ // Create a vector if (unsigned, AttributeSetNode*) pairs from the attributes
+ // list.
+ SmallVector<std::pair<unsigned, AttributeSetNode*>, 8> AttrPairVec;
+ for (ArrayRef<std::pair<unsigned, Attribute> >::iterator I = Attrs.begin(),
+ E = Attrs.end(); I != E; ) {
+ unsigned Index = I->first;
+ SmallVector<Attribute, 4> AttrVec;
+ while (I != E && I->first == Index) {
+ AttrVec.push_back(I->second);
+ ++I;
+ }
- // If we didn't find any existing attributes of the same shape then
- // create a new one and insert it.
- if (!PA) {
- PA = new AttributeSetImpl(C, Attrs);
- pImpl->AttrsLists.InsertNode(PA, InsertPoint);
+ AttrPairVec.push_back(std::make_pair(Index,
+ AttributeSetNode::get(C, AttrVec)));
}
- // Return the AttributesList that we found or created.
- return AttributeSet(PA);
+ return getImpl(C, AttrPairVec);
+}
+
+AttributeSet AttributeSet::get(LLVMContext &C,
+ ArrayRef<std::pair<unsigned,
+ AttributeSetNode*> > Attrs) {
+ // If there are no attributes then return a null AttributesList pointer.
+ if (Attrs.empty())
+ return AttributeSet();
+
+ return getImpl(C, Attrs);
}
AttributeSet AttributeSet::get(LLVMContext &C, unsigned Idx, AttrBuilder &B) {
- // FIXME: This should be implemented as a loop that creates the
- // AttributeWithIndexes that then are used to create the AttributeSet.
if (!B.hasAttributes())
return AttributeSet();
- return get(C, AttributeWithIndex::get(Idx, Attribute::get(C, B)));
+
+ SmallVector<std::pair<unsigned, Attribute>, 8> Attrs;
+ for (AttrBuilder::iterator I = B.begin(), E = B.end(); I != E; ++I) {
+ Attribute::AttrKind Kind = *I;
+ if (Kind == Attribute::Alignment)
+ Attrs.push_back(std::make_pair(Idx, Attribute::
+ getWithAlignment(C, B.getAlignment())));
+ else if (Kind == Attribute::StackAlignment)
+ Attrs.push_back(std::make_pair(Idx, Attribute::
+ getWithStackAlignment(C, B.getStackAlignment())));
+ else
+ Attrs.push_back(std::make_pair(Idx, Attribute::get(C, Kind)));
+ }
+
+ return get(C, Attrs);
}
AttributeSet AttributeSet::get(LLVMContext &C, unsigned Idx,
ArrayRef<Attribute::AttrKind> Kind) {
- // FIXME: This is temporary. Ultimately, the AttributeWithIndex will be
- // replaced by an object that holds multiple Attribute::AttrKinds.
- AttrBuilder B;
+ SmallVector<std::pair<unsigned, Attribute>, 8> Attrs;
for (ArrayRef<Attribute::AttrKind>::iterator I = Kind.begin(),
E = Kind.end(); I != E; ++I)
- B.addAttribute(*I);
- return get(C, Idx, B);
+ Attrs.push_back(std::make_pair(Idx, Attribute::get(C, *I)));
+ return get(C, Attrs);
}
AttributeSet AttributeSet::get(LLVMContext &C, ArrayRef<AttributeSet> Attrs) {
- SmallVector<AttributeWithIndex, 8> AttrList;
- for (ArrayRef<AttributeSet>::iterator I = Attrs.begin(), E = Attrs.end();
- I != E; ++I) {
- AttributeSet AS = *I;
+ if (Attrs.empty()) return AttributeSet();
+
+ SmallVector<std::pair<unsigned, AttributeSetNode*>, 8> AttrNodeVec;
+ for (unsigned I = 0, E = Attrs.size(); I != E; ++I) {
+ AttributeSet AS = Attrs[I];
if (!AS.pImpl) continue;
- AttrList.append(AS.pImpl->AttrList.begin(), AS.pImpl->AttrList.end());
+ AttrNodeVec.append(AS.pImpl->AttrNodes.begin(), AS.pImpl->AttrNodes.end());
}
- return get(C, AttrList);
+ return getImpl(C, AttrNodeVec);
}
-/// \brief Return the number of slots used in this attribute list. This is the
-/// number of arguments that have an attribute set on them (including the
-/// function itself).
-unsigned AttributeSet::getNumSlots() const {
- return pImpl ? pImpl->getNumAttributes() : 0;
+AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Idx,
+ Attribute::AttrKind Attr) const {
+ return addAttributes(C, Idx, AttributeSet::get(C, Idx, Attr));
}
-uint64_t AttributeSet::getSlotIndex(unsigned Slot) const {
- assert(pImpl && Slot < pImpl->getNumAttributes() &&
- "Slot # out of range!");
- return pImpl->getSlotIndex(Slot);
-}
+AttributeSet AttributeSet::addAttributes(LLVMContext &C, unsigned Idx,
+ AttributeSet Attrs) const {
+ if (!pImpl) return Attrs;
+ if (!Attrs.pImpl) return *this;
-AttributeSet AttributeSet::getSlotAttributes(unsigned Slot) const {
- assert(pImpl && Slot < pImpl->getNumAttributes() &&
- "Slot # out of range!");
- return pImpl->getSlotAttributes(Slot);
-}
+#ifndef NDEBUG
+ // FIXME it is not obvious how this should work for alignment. For now, say
+ // we can't change a known alignment.
+ unsigned OldAlign = getParamAlignment(Idx);
+ unsigned NewAlign = Attrs.getParamAlignment(Idx);
+ assert((!OldAlign || !NewAlign || OldAlign == NewAlign) &&
+ "Attempt to change alignment!");
+#endif
-bool AttributeSet::hasAttribute(unsigned Index, Attribute::AttrKind Kind) const{
- return getAttributes(Index).hasAttribute(Kind);
-}
+ // Add the attribute slots before the one we're trying to add.
+ SmallVector<AttributeSet, 4> AttrSet;
+ uint64_t NumAttrs = pImpl->getNumAttributes();
+ AttributeSet AS;
+ uint64_t LastIndex = 0;
+ for (unsigned I = 0, E = NumAttrs; I != E; ++I) {
+ if (getSlotIndex(I) >= Idx) {
+ if (getSlotIndex(I) == Idx) AS = getSlotAttributes(LastIndex++);
+ break;
+ }
+ LastIndex = I + 1;
+ AttrSet.push_back(getSlotAttributes(I));
+ }
-bool AttributeSet::hasAttributes(unsigned Index) const {
- return getAttributes(Index).hasAttributes();
+ // Now add the attribute into the correct slot. There may already be an
+ // AttributeSet there.
+ AttrBuilder B(AS, Idx);
+
+ for (unsigned I = 0, E = Attrs.pImpl->getNumAttributes(); I != E; ++I)
+ if (Attrs.getSlotIndex(I) == Idx) {
+ for (AttributeSetImpl::const_iterator II = Attrs.pImpl->begin(I),
+ IE = Attrs.pImpl->end(I); II != IE; ++II)
+ B.addAttribute(*II);
+ break;
+ }
+
+ AttrSet.push_back(AttributeSet::get(C, Idx, B));
+
+ // Add the remaining attribute slots.
+ for (unsigned I = LastIndex, E = NumAttrs; I < E; ++I)
+ AttrSet.push_back(getSlotAttributes(I));
+
+ return get(C, AttrSet);
}
-std::string AttributeSet::getAsString(unsigned Index) const {
- return getAttributes(Index).getAsString();
+AttributeSet AttributeSet::removeAttribute(LLVMContext &C, unsigned Idx,
+ Attribute::AttrKind Attr) const {
+ return removeAttributes(C, Idx, AttributeSet::get(C, Idx, Attr));
}
-unsigned AttributeSet::getParamAlignment(unsigned Idx) const {
- return getAttributes(Idx).getAlignment();
+AttributeSet AttributeSet::removeAttributes(LLVMContext &C, unsigned Idx,
+ AttributeSet Attrs) const {
+ if (!pImpl) return AttributeSet();
+ if (!Attrs.pImpl) return *this;
+
+#ifndef NDEBUG
+ // FIXME it is not obvious how this should work for alignment.
+ // For now, say we can't pass in alignment, which no current use does.
+ assert(!Attrs.hasAttribute(Idx, Attribute::Alignment) &&
+ "Attempt to change alignment!");
+#endif
+
+ // Add the attribute slots before the one we're trying to add.
+ SmallVector<AttributeSet, 4> AttrSet;
+ uint64_t NumAttrs = pImpl->getNumAttributes();
+ AttributeSet AS;
+ uint64_t LastIndex = 0;
+ for (unsigned I = 0, E = NumAttrs; I != E; ++I) {
+ if (getSlotIndex(I) >= Idx) {
+ if (getSlotIndex(I) == Idx) AS = getSlotAttributes(LastIndex++);
+ break;
+ }
+ LastIndex = I + 1;
+ AttrSet.push_back(getSlotAttributes(I));
+ }
+
+ // Now remove the attribute from the correct slot. There may already be an
+ // AttributeSet there.
+ AttrBuilder B(AS, Idx);
+
+ for (unsigned I = 0, E = Attrs.pImpl->getNumAttributes(); I != E; ++I)
+ if (Attrs.getSlotIndex(I) == Idx) {
+ B.removeAttributes(Attrs.pImpl->getSlotAttributes(I), Idx);
+ break;
+ }
+
+ AttrSet.push_back(AttributeSet::get(C, Idx, B));
+
+ // Add the remaining attribute slots.
+ for (unsigned I = LastIndex, E = NumAttrs; I < E; ++I)
+ AttrSet.push_back(getSlotAttributes(I));
+
+ return get(C, AttrSet);
}
-unsigned AttributeSet::getStackAlignment(unsigned Index) const {
- return getAttributes(Index).getStackAlignment();
+//===----------------------------------------------------------------------===//
+// AttributeSet Accessor Methods
+//===----------------------------------------------------------------------===//
+
+AttributeSet AttributeSet::getParamAttributes(unsigned Idx) const {
+ return pImpl && hasAttributes(Idx) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> >(
+ std::make_pair(Idx, getAttributes(Idx)))) :
+ AttributeSet();
}
-uint64_t AttributeSet::Raw(unsigned Index) const {
- // FIXME: Remove this.
- return pImpl ? pImpl->Raw(Index) : 0;
+AttributeSet AttributeSet::getRetAttributes() const {
+ return pImpl && hasAttributes(ReturnIndex) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> >(
+ std::make_pair(ReturnIndex,
+ getAttributes(ReturnIndex)))) :
+ AttributeSet();
}
-/// getAttributes - The attributes for the specified index are returned.
-Attribute AttributeSet::getAttributes(unsigned Idx) const {
- if (pImpl == 0) return Attribute();
+AttributeSet AttributeSet::getFnAttributes() const {
+ return pImpl && hasAttributes(FunctionIndex) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> >(
+ std::make_pair(FunctionIndex,
+ getAttributes(FunctionIndex)))) :
+ AttributeSet();
+}
- ArrayRef<AttributeWithIndex> Attrs = pImpl->getAttributes();
- for (unsigned i = 0, e = Attrs.size(); i != e && Attrs[i].Index <= Idx; ++i)
- if (Attrs[i].Index == Idx)
- return Attrs[i].Attrs;
+bool AttributeSet::hasAttribute(unsigned Index, Attribute::AttrKind Kind) const{
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->hasAttribute(Kind) : false;
+}
- return Attribute();
+bool AttributeSet::hasAttributes(unsigned Index) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->hasAttributes() : false;
}
-/// hasAttrSomewhere - Return true if the specified attribute is set for at
-/// least one parameter or for the return value.
+/// \brief Return true if the specified attribute is set for at least one
+/// parameter or for the return value.
bool AttributeSet::hasAttrSomewhere(Attribute::AttrKind Attr) const {
if (pImpl == 0) return false;
for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I)
- for (AttributeSetImpl::iterator II = pImpl->begin(I),
+ for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
IE = pImpl->end(I); II != IE; ++II)
if (II->hasAttribute(Attr))
return true;
return false;
}
-AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Idx,
- Attribute::AttrKind Attr) const {
- return addAttr(C, Idx, Attribute::get(C, Attr));
+unsigned AttributeSet::getParamAlignment(unsigned Index) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getAlignment() : 0;
}
-AttributeSet AttributeSet::addAttributes(LLVMContext &C, unsigned Idx,
- AttributeSet Attrs) const {
- return addAttr(C, Idx, Attrs.getAttributes(Idx));
+unsigned AttributeSet::getStackAlignment(unsigned Index) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getStackAlignment() : 0;
}
-AttributeSet AttributeSet::addAttr(LLVMContext &C, unsigned Idx,
- Attribute Attrs) const {
- Attribute OldAttrs = getAttributes(Idx);
-#ifndef NDEBUG
- // FIXME it is not obvious how this should work for alignment.
- // For now, say we can't change a known alignment.
- unsigned OldAlign = OldAttrs.getAlignment();
- unsigned NewAlign = Attrs.getAlignment();
- assert((!OldAlign || !NewAlign || OldAlign == NewAlign) &&
- "Attempt to change alignment!");
-#endif
-
- AttrBuilder NewAttrs =
- AttrBuilder(OldAttrs).addAttributes(Attrs);
- if (NewAttrs == AttrBuilder(OldAttrs))
- return *this;
-
- SmallVector<AttributeWithIndex, 8> NewAttrList;
- if (pImpl == 0) {
- NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
- } else {
- ArrayRef<AttributeWithIndex> OldAttrList = pImpl->getAttributes();
- unsigned i = 0, e = OldAttrList.size();
-
- // Copy attributes for arguments before this one.
- for (; i != e && OldAttrList[i].Index < Idx; ++i)
- NewAttrList.push_back(OldAttrList[i]);
-
- // If there are attributes already at this index, merge them in.
- if (i != e && OldAttrList[i].Index == Idx) {
- Attrs =
- Attribute::get(C, AttrBuilder(Attrs).
- addAttributes(OldAttrList[i].Attrs));
- ++i;
- }
+std::string AttributeSet::getAsString(unsigned Index) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getAsString() : std::string("");
+}
- NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
+/// \brief The attributes for the specified index are returned.
+AttributeSetNode *AttributeSet::getAttributes(unsigned Idx) const {
+ if (!pImpl) return 0;
- // Copy attributes for arguments after this one.
- NewAttrList.insert(NewAttrList.end(),
- OldAttrList.begin()+i, OldAttrList.end());
- }
+ // Loop through to find the attribute node we want.
+ for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I)
+ if (pImpl->getSlotIndex(I) == Idx)
+ return pImpl->getSlotNode(I);
- return get(C, NewAttrList);
+ return 0;
}
-AttributeSet AttributeSet::removeAttribute(LLVMContext &C, unsigned Idx,
- Attribute::AttrKind Attr) const {
- return removeAttr(C, Idx, Attribute::get(C, Attr));
+AttributeSet::iterator AttributeSet::begin(unsigned Idx) const {
+ if (!pImpl)
+ return ArrayRef<Attribute>().begin();
+ return pImpl->begin(Idx);
}
-AttributeSet AttributeSet::removeAttributes(LLVMContext &C, unsigned Idx,
- AttributeSet Attrs) const {
- return removeAttr(C, Idx, Attrs.getAttributes(Idx));
+AttributeSet::iterator AttributeSet::end(unsigned Idx) const {
+ if (!pImpl)
+ return ArrayRef<Attribute>().end();
+ return pImpl->end(Idx);
}
-AttributeSet AttributeSet::removeAttr(LLVMContext &C, unsigned Idx,
- Attribute Attrs) const {
-#ifndef NDEBUG
- // FIXME it is not obvious how this should work for alignment.
- // For now, say we can't pass in alignment, which no current use does.
- assert(!Attrs.hasAttribute(Attribute::Alignment) &&
- "Attempt to exclude alignment!");
-#endif
- if (pImpl == 0) return AttributeSet();
-
- Attribute OldAttrs = getAttributes(Idx);
- AttrBuilder NewAttrs =
- AttrBuilder(OldAttrs).removeAttributes(Attrs);
- if (NewAttrs == AttrBuilder(OldAttrs))
- return *this;
-
- SmallVector<AttributeWithIndex, 8> NewAttrList;
- ArrayRef<AttributeWithIndex> OldAttrList = pImpl->getAttributes();
- unsigned i = 0, e = OldAttrList.size();
+//===----------------------------------------------------------------------===//
+// AttributeSet Introspection Methods
+//===----------------------------------------------------------------------===//
- // Copy attributes for arguments before this one.
- for (; i != e && OldAttrList[i].Index < Idx; ++i)
- NewAttrList.push_back(OldAttrList[i]);
+/// \brief Return the number of slots used in this attribute list. This is the
+/// number of arguments that have an attribute set on them (including the
+/// function itself).
+unsigned AttributeSet::getNumSlots() const {
+ return pImpl ? pImpl->getNumAttributes() : 0;
+}
- // If there are attributes already at this index, merge them in.
- assert(OldAttrList[i].Index == Idx && "Attribute isn't set?");
- Attrs = Attribute::get(C, AttrBuilder(OldAttrList[i].Attrs).
- removeAttributes(Attrs));
- ++i;
- if (Attrs.hasAttributes()) // If any attributes left for this param, add them.
- NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
+uint64_t AttributeSet::getSlotIndex(unsigned Slot) const {
+ assert(pImpl && Slot < pImpl->getNumAttributes() &&
+ "Slot # out of range!");
+ return pImpl->getSlotIndex(Slot);
+}
- // Copy attributes for arguments after this one.
- NewAttrList.insert(NewAttrList.end(),
- OldAttrList.begin()+i, OldAttrList.end());
+AttributeSet AttributeSet::getSlotAttributes(unsigned Slot) const {
+ assert(pImpl && Slot < pImpl->getNumAttributes() &&
+ "Slot # out of range!");
+ return pImpl->getSlotAttributes(Slot);
+}
- return get(C, NewAttrList);
+uint64_t AttributeSet::Raw(unsigned Index) const {
+ // FIXME: Remove this.
+ return pImpl ? pImpl->Raw(Index) : 0;
}
void AttributeSet::dump() const {
dbgs() << "PAL[\n";
+
for (unsigned i = 0, e = getNumSlots(); i < e; ++i) {
uint64_t Index = getSlotIndex(i);
dbgs() << " { ";
dbgs() << "]\n";
}
+//===----------------------------------------------------------------------===//
+// AttrBuilder Method Implementations
+//===----------------------------------------------------------------------===//
+
+AttrBuilder::AttrBuilder(AttributeSet AS, unsigned Idx)
+ : Alignment(0), StackAlignment(0) {
+ AttributeSetImpl *pImpl = AS.pImpl;
+ if (!pImpl) return;
+
+ for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
+ if (pImpl->getSlotIndex(I) != Idx) continue;
+
+ for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
+ IE = pImpl->end(I); II != IE; ++II)
+ addAttribute(*II);
+
+ break;
+ }
+}
+
+void AttrBuilder::clear() {
+ Attrs.clear();
+ Alignment = StackAlignment = 0;
+}
+
+AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Val) {
+ assert(Val != Attribute::Alignment && Val != Attribute::StackAlignment &&
+ "Adding alignment attribute without adding alignment value!");
+ Attrs.insert(Val);
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::addAttribute(Attribute Attr) {
+ ConstantInt *Kind = cast<ConstantInt>(Attr.getAttributeKind());
+ Attribute::AttrKind KindVal = Attribute::AttrKind(Kind->getZExtValue());
+ Attrs.insert(KindVal);
+
+ if (KindVal == Attribute::Alignment)
+ Alignment = Attr.getAlignment();
+ else if (KindVal == Attribute::StackAlignment)
+ StackAlignment = Attr.getStackAlignment();
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::addAttribute(StringRef A, StringRef V) {
+ TargetDepAttrs[A] = V;
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
+ Attrs.erase(Val);
+
+ if (Val == Attribute::Alignment)
+ Alignment = 0;
+ else if (Val == Attribute::StackAlignment)
+ StackAlignment = 0;
+
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::removeAttributes(AttributeSet A, uint64_t Index) {
+ unsigned Idx = ~0U;
+ for (unsigned I = 0, E = A.getNumSlots(); I != E; ++I)
+ if (A.getSlotIndex(I) == Index) {
+ Idx = I;
+ break;
+ }
+
+ assert(Idx != ~0U && "Couldn't find index in AttributeSet!");
+
+ for (AttributeSet::iterator I = A.begin(Idx), E = A.end(Idx); I != E; ++I) {
+ ConstantInt *CI = cast<ConstantInt>(I->getAttributeKind());
+ Attribute::AttrKind Kind = Attribute::AttrKind(CI->getZExtValue());
+ Attrs.erase(Kind);
+
+ if (Kind == Attribute::Alignment)
+ Alignment = 0;
+ else if (Kind == Attribute::StackAlignment)
+ StackAlignment = 0;
+ }
+
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::removeAttribute(StringRef A) {
+ std::map<std::string, std::string>::iterator I = TargetDepAttrs.find(A);
+ if (I != TargetDepAttrs.end())
+ TargetDepAttrs.erase(I);
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::addAlignmentAttr(unsigned Align) {
+ if (Align == 0) return *this;
+
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x40000000 && "Alignment too large.");
+
+ Attrs.insert(Attribute::Alignment);
+ Alignment = Align;
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align) {
+ // Default alignment, allow the target to define how to align it.
+ if (Align == 0) return *this;
+
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x100 && "Alignment too large.");
+
+ Attrs.insert(Attribute::StackAlignment);
+ StackAlignment = Align;
+ return *this;
+}
+
+bool AttrBuilder::contains(Attribute::AttrKind A) const {
+ return Attrs.count(A);
+}
+
+bool AttrBuilder::hasAttributes() const {
+ return !Attrs.empty();
+}
+
+bool AttrBuilder::hasAttributes(AttributeSet A, uint64_t Index) const {
+ unsigned Idx = ~0U;
+ for (unsigned I = 0, E = A.getNumSlots(); I != E; ++I)
+ if (A.getSlotIndex(I) == Index) {
+ Idx = I;
+ break;
+ }
+
+ assert(Idx != ~0U && "Couldn't find the index!");
+
+ for (AttributeSet::iterator I = A.begin(Idx), E = A.end(Idx);
+ I != E; ++I) {
+ Attribute Attr = *I;
+ // FIXME: Support StringRefs.
+ ConstantInt *Kind = cast<ConstantInt>(Attr.getAttributeKind());
+ Attribute::AttrKind KindVal = Attribute::AttrKind(Kind->getZExtValue());
+
+ if (Attrs.count(KindVal))
+ return true;
+ }
+
+ return false;
+}
+
+bool AttrBuilder::hasAlignmentAttr() const {
+ return Alignment != 0;
+}
+
+bool AttrBuilder::operator==(const AttrBuilder &B) {
+ SmallVector<Attribute::AttrKind, 8> This(Attrs.begin(), Attrs.end());
+ SmallVector<Attribute::AttrKind, 8> That(B.Attrs.begin(), B.Attrs.end());
+ return This == That;
+}
+
+AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
+ // FIXME: Remove this in 4.0.
+ if (!Val) return *this;
+
+ for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
+ I = Attribute::AttrKind(I + 1)) {
+ if (uint64_t A = (Val & AttributeImpl::getAttrMask(I))) {
+ Attrs.insert(I);
+
+ if (I == Attribute::Alignment)
+ Alignment = 1ULL << ((A >> 16) - 1);
+ else if (I == Attribute::StackAlignment)
+ StackAlignment = 1ULL << ((A >> 26)-1);
+ }
+ }
+
+ return *this;
+}
+
//===----------------------------------------------------------------------===//
// AttributeFuncs Function Defintions
//===----------------------------------------------------------------------===//
-Attribute AttributeFuncs::typeIncompatible(Type *Ty) {
+/// \brief Which attributes cannot be applied to a type.
+AttributeSet AttributeFuncs::typeIncompatible(Type *Ty, uint64_t Index) {
AttrBuilder Incompatible;
if (!Ty->isIntegerTy())
.addAttribute(Attribute::NoCapture)
.addAttribute(Attribute::StructRet);
- return Attribute::get(Ty->getContext(), Incompatible);
-}
-
-/// encodeLLVMAttributesForBitcode - This returns an integer containing an
-/// encoding of all the LLVM attributes found in the given attribute bitset.
-/// Any change to this encoding is a breaking change to bitcode compatibility.
-uint64_t AttributeFuncs::encodeLLVMAttributesForBitcode(AttributeSet Attrs,
- unsigned Index) {
- // FIXME: It doesn't make sense to store the alignment information as an
- // expanded out value, we should store it as a log2 value. However, we can't
- // just change that here without breaking bitcode compatibility. If this ever
- // becomes a problem in practice, we should introduce new tag numbers in the
- // bitcode file and have those tags use a more efficiently encoded alignment
- // field.
-
- // Store the alignment in the bitcode as a 16-bit raw value instead of a 5-bit
- // log2 encoded value. Shift the bits above the alignment up by 11 bits.
- uint64_t EncodedAttrs = Attrs.Raw(Index) & 0xffff;
- if (Attrs.hasAttribute(Index, Attribute::Alignment))
- EncodedAttrs |= Attrs.getParamAlignment(Index) << 16;
- EncodedAttrs |= (Attrs.Raw(Index) & (0xffffULL << 21)) << 11;
- return EncodedAttrs;
-}
-
-/// decodeLLVMAttributesForBitcode - This returns an attribute bitset containing
-/// the LLVM attributes that have been decoded from the given integer. This
-/// function must stay in sync with 'encodeLLVMAttributesForBitcode'.
-Attribute AttributeFuncs::decodeLLVMAttributesForBitcode(LLVMContext &C,
- uint64_t EncodedAttrs){
- // The alignment is stored as a 16-bit raw value from bits 31--16. We shift
- // the bits above 31 down by 11 bits.
- unsigned Alignment = (EncodedAttrs & (0xffffULL << 16)) >> 16;
- assert((!Alignment || isPowerOf2_32(Alignment)) &&
- "Alignment must be a power of two.");
-
- AttrBuilder B(EncodedAttrs & 0xffff);
- if (Alignment)
- B.addAlignmentAttr(Alignment);
- B.addRawValue((EncodedAttrs & (0xffffULL << 32)) >> 11);
- return Attribute::get(C, B);
+ return AttributeSet::get(Ty->getContext(), Index, Incompatible);
}
-
projects / oota-llvm.git / blobdiff