-//===-- 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> Vals) {
- AttrBuilder B;
- for (ArrayRef<AttrKind>::iterator I = Vals.begin(), E = Vals.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, Attribute::AttrKind Kind,
+ uint64_t Val) {
LLVMContextImpl *pImpl = Context.pImpl;
FoldingSetNodeID ID;
- ID.AddInteger(B.Raw());
+ ID.AddInteger(Kind);
+ if (Val) ID.AddInteger(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());
+ if (!Val)
+ PA = new EnumAttributeImpl(Kind);
+ else
+ PA = new AlignAttributeImpl(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);
}
-bool Attribute::hasAttribute(AttrKind Val) const {
- return pImpl && pImpl->hasAttribute(Val);
-}
-
-bool Attribute::hasAttributes() const {
- return pImpl && pImpl->hasAttributes();
-}
-
-/// This returns the alignment field of an attribute as a byte alignment value.
-unsigned Attribute::getAlignment() const {
- if (!hasAttribute(Attribute::Alignment))
- return 0;
- return pImpl->getAlignment();
-}
+Attribute Attribute::get(LLVMContext &Context, StringRef Kind, StringRef Val) {
+ LLVMContextImpl *pImpl = Context.pImpl;
+ FoldingSetNodeID ID;
+ ID.AddString(Kind);
+ if (!Val.empty()) ID.AddString(Val);
-/// This returns the stack alignment field of an attribute as a byte alignment
-/// value.
-unsigned Attribute::getStackAlignment() const {
- if (!hasAttribute(Attribute::StackAlignment))
- return 0;
- return pImpl->getStackAlignment();
-}
+ void *InsertPoint;
+ AttributeImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
-bool Attribute::operator==(AttrKind K) const {
- return pImpl && *pImpl == K;
-}
-bool Attribute::operator!=(AttrKind K) const {
- return !(*this == K);
-}
+ if (!PA) {
+ // If we didn't find any existing attributes of the same shape then create a
+ // new one and insert it.
+ PA = new StringAttributeImpl(Kind, Val);
+ pImpl->AttrsSet.InsertNode(PA, InsertPoint);
+ }
-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;
+ // Return the Attribute that we found or created.
+ return Attribute(PA);
}
-uint64_t Attribute::Raw() const {
- return pImpl ? pImpl->Raw() : 0;
+Attribute Attribute::getWithAlignment(LLVMContext &Context, uint64_t Align) {
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x40000000 && "Alignment too large.");
+ return get(Context, Alignment, Align);
}
-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 (hasAttribute(Attribute::InReg))
- Result += "inreg ";
- if (hasAttribute(Attribute::NoAlias))
- Result += "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 ";
- if (hasAttribute(Attribute::ReadNone))
- Result += "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 ";
- if (hasAttribute(Attribute::StackProtect))
- Result += "ssp ";
- if (hasAttribute(Attribute::StackProtectReq))
- Result += "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 ";
- if (hasAttribute(Attribute::StackAlignment)) {
- Result += "alignstack(";
- Result += utostr(getStackAlignment());
- Result += ") ";
- }
- if (hasAttribute(Attribute::Alignment)) {
- 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;
+Attribute Attribute::getWithStackAlignment(LLVMContext &Context,
+ uint64_t Align) {
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x100 && "Alignment too large.");
+ return get(Context, StackAlignment, Align);
}
//===----------------------------------------------------------------------===//
-// AttrBuilder Method Implementations
+// Attribute Accessor Methods
//===----------------------------------------------------------------------===//
-AttrBuilder::AttrBuilder(AttributeSet AS, unsigned Idx)
- : Alignment(0), StackAlignment(0) {
- AttributeSetImpl *pImpl = AS.AttrList;
- if (!pImpl) return;
-
- ArrayRef<AttributeWithIndex> AttrList = pImpl->getAttributes();
- const AttributeWithIndex *AWI = 0;
- for (unsigned I = 0, E = AttrList.size(); I != E; ++I)
- if (AttrList[I].Index == Idx) {
- AWI = &AttrList[I];
- break;
- }
-
- if (!AWI) return;
-
- uint64_t Mask = AWI->Attrs.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);
- }
- }
+bool Attribute::isEnumAttribute() const {
+ return pImpl && pImpl->isEnumAttribute();
}
-void AttrBuilder::clear() {
- Attrs.clear();
- Alignment = StackAlignment = 0;
+bool Attribute::isAlignAttribute() const {
+ return pImpl && pImpl->isAlignAttribute();
}
-AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Val) {
- Attrs.insert(Val);
- return *this;
+bool Attribute::isStringAttribute() const {
+ return pImpl && pImpl->isStringAttribute();
}
-AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
- Attrs.erase(Val);
- if (Val == Attribute::Alignment)
- Alignment = 0;
- else if (Val == Attribute::StackAlignment)
- StackAlignment = 0;
-
- return *this;
+Attribute::AttrKind Attribute::getKindAsEnum() const {
+ if (!pImpl) return None;
+ assert((isEnumAttribute() || isAlignAttribute()) &&
+ "Invalid attribute type to get the kind as an enum!");
+ return pImpl ? pImpl->getKindAsEnum() : None;
}
-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;
+uint64_t Attribute::getValueAsInt() const {
+ if (!pImpl) return 0;
+ assert(isAlignAttribute() &&
+ "Expected the attribute to be an alignment attribute!");
+ return pImpl ? pImpl->getValueAsInt() : 0;
}
-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;
+StringRef Attribute::getKindAsString() const {
+ if (!pImpl) return StringRef();
+ assert(isStringAttribute() &&
+ "Invalid attribute type to get the kind as a string!");
+ return pImpl ? pImpl->getKindAsString() : StringRef();
}
-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 *this;
+StringRef Attribute::getValueAsString() const {
+ if (!pImpl) return StringRef();
+ assert(isStringAttribute() &&
+ "Invalid attribute type to get the value as a string!");
+ return pImpl ? pImpl->getValueAsString() : StringRef();
}
-AttrBuilder &AttrBuilder::addAttributes(const Attribute &Attr) {
- uint64_t Mask = Attr.Raw();
-
- 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;
+bool Attribute::hasAttribute(AttrKind Kind) const {
+ return (pImpl && pImpl->hasAttribute(Kind)) || (!pImpl && Kind == None);
}
-AttrBuilder &AttrBuilder::removeAttributes(const Attribute &A){
- uint64_t Mask = A.Raw();
-
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1)) {
- if (Mask & AttributeImpl::getAttrMask(I)) {
- Attrs.erase(I);
-
- if (I == Attribute::Alignment)
- Alignment = 0;
- else if (I == Attribute::StackAlignment)
- StackAlignment = 0;
- }
- }
-
- return *this;
+bool Attribute::hasAttribute(StringRef Kind) const {
+ if (!isStringAttribute()) return false;
+ return pImpl && pImpl->hasAttribute(Kind);
}
-bool AttrBuilder::contains(Attribute::AttrKind A) const {
- return Attrs.count(A);
+/// This returns the alignment field of an attribute as a byte alignment value.
+unsigned Attribute::getAlignment() const {
+ assert(hasAttribute(Attribute::Alignment) &&
+ "Trying to get alignment from non-alignment attribute!");
+ return pImpl->getValueAsInt();
}
-bool AttrBuilder::hasAttributes() const {
- return !Attrs.empty();
+/// This returns the stack alignment field of an attribute as a byte alignment
+/// value.
+unsigned Attribute::getStackAlignment() const {
+ assert(hasAttribute(Attribute::StackAlignment) &&
+ "Trying to get alignment from non-alignment attribute!");
+ return pImpl->getValueAsInt();
}
-bool AttrBuilder::hasAttributes(const Attribute &A) const {
- return Raw() & A.Raw();
-}
+std::string Attribute::getAsString(bool InAttrGrp) const {
+ if (!pImpl) return "";
-bool AttrBuilder::hasAlignmentAttr() const {
- return Alignment != 0;
-}
+ if (hasAttribute(Attribute::SanitizeAddress))
+ return "sanitize_address";
+ if (hasAttribute(Attribute::AlwaysInline))
+ return "alwaysinline";
+ if (hasAttribute(Attribute::Builtin))
+ return "builtin";
+ if (hasAttribute(Attribute::ByVal))
+ return "byval";
+ if (hasAttribute(Attribute::InlineHint))
+ return "inlinehint";
+ if (hasAttribute(Attribute::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))
+ return "noalias";
+ if (hasAttribute(Attribute::NoBuiltin))
+ return "nobuiltin";
+ if (hasAttribute(Attribute::NoCapture))
+ 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))
+ return "readnone";
+ if (hasAttribute(Attribute::ReadOnly))
+ return "readonly";
+ if (hasAttribute(Attribute::Returned))
+ return "returned";
+ if (hasAttribute(Attribute::ReturnsTwice))
+ return "returns_twice";
+ if (hasAttribute(Attribute::SExt))
+ return "signext";
+ if (hasAttribute(Attribute::StackProtect))
+ return "ssp";
+ if (hasAttribute(Attribute::StackProtectReq))
+ return "sspreq";
+ if (hasAttribute(Attribute::StackProtectStrong))
+ return "sspstrong";
+ if (hasAttribute(Attribute::StructRet))
+ return "sret";
+ if (hasAttribute(Attribute::SanitizeThread))
+ return "sanitize_thread";
+ if (hasAttribute(Attribute::SanitizeMemory))
+ return "sanitize_memory";
+ if (hasAttribute(Attribute::UWTable))
+ return "uwtable";
+ if (hasAttribute(Attribute::ZExt))
+ return "zeroext";
+ if (hasAttribute(Attribute::Cold))
+ return "cold";
+
+ // FIXME: These should be output like this:
+ //
+ // align=4
+ // alignstack=8
+ //
+ if (hasAttribute(Attribute::Alignment)) {
+ std::string Result;
+ Result += "align";
+ Result += (InAttrGrp) ? "=" : " ";
+ Result += utostr(getValueAsInt());
+ return Result;
+ }
-uint64_t AttrBuilder::Raw() const {
- uint64_t Mask = 0;
+ if (hasAttribute(Attribute::StackAlignment)) {
+ std::string Result;
+ Result += "alignstack";
+ if (InAttrGrp) {
+ Result += "=";
+ Result += utostr(getValueAsInt());
+ } else {
+ Result += "(";
+ Result += utostr(getValueAsInt());
+ Result += ")";
+ }
+ return Result;
+ }
- for (DenseSet<Attribute::AttrKind>::const_iterator I = Attrs.begin(),
- E = Attrs.end(); I != E; ++I) {
- Attribute::AttrKind Kind = *I;
+ // Convert target-dependent attributes to strings of the form:
+ //
+ // "kind"
+ // "kind" = "value"
+ //
+ if (isStringAttribute()) {
+ std::string Result;
+ Result += '\"' + getKindAsString().str() + '"';
- 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);
+ StringRef Val = pImpl->getValueAsString();
+ if (Val.empty()) return Result;
+
+ Result += "=\"" + Val.str() + '"';
+ return Result;
}
- return Mask;
+ llvm_unreachable("Unknown attribute");
}
-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);
-}
-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());
+AttributeImpl::~AttributeImpl() {}
+
+bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
+ if (isStringAttribute()) return false;
+ return getKindAsEnum() == A;
}
-AttributeImpl::AttributeImpl(LLVMContext &C, StringRef data)
- : Context(C) {
- Data = ConstantDataArray::getString(C, data);
+
+bool AttributeImpl::hasAttribute(StringRef Kind) const {
+ if (!isStringAttribute()) return false;
+ return getKindAsString() == Kind;
}
-bool AttributeImpl::operator==(Attribute::AttrKind Kind) const {
- if (ConstantInt *CI = dyn_cast<ConstantInt>(Data))
- return CI->getZExtValue() == Kind;
- return false;
+Attribute::AttrKind AttributeImpl::getKindAsEnum() const {
+ assert(isEnumAttribute() || isAlignAttribute());
+ return static_cast<const EnumAttributeImpl *>(this)->getEnumKind();
}
-bool AttributeImpl::operator!=(Attribute::AttrKind Kind) const {
- return !(*this == Kind);
+
+uint64_t AttributeImpl::getValueAsInt() const {
+ assert(isAlignAttribute());
+ return static_cast<const AlignAttributeImpl *>(this)->getAlignment();
}
-bool AttributeImpl::operator==(StringRef Kind) const {
- if (ConstantDataArray *CDA = dyn_cast<ConstantDataArray>(Data))
- if (CDA->isString())
- return CDA->getAsString() == Kind;
- return false;
+StringRef AttributeImpl::getKindAsString() const {
+ assert(isStringAttribute());
+ return static_cast<const StringAttributeImpl *>(this)->getStringKind();
}
-bool AttributeImpl::operator!=(StringRef Kind) const {
- return !(*this == Kind);
+StringRef AttributeImpl::getValueAsString() const {
+ assert(isStringAttribute());
+ return static_cast<const StringAttributeImpl *>(this)->getStringValue();
}
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;
-
- ConstantInt *ThisCI = dyn_cast<ConstantInt>(Data);
- ConstantInt *ThatCI = dyn_cast<ConstantInt>(AI.Data);
-
- ConstantDataArray *ThisCDA = dyn_cast<ConstantDataArray>(Data);
- ConstantDataArray *ThatCDA = dyn_cast<ConstantDataArray>(AI.Data);
-
- if (ThisCI && ThatCI)
- return ThisCI->getZExtValue() < ThatCI->getZExtValue();
-
- if (ThisCI && ThatCDA)
- return true;
-
- if (ThisCDA && ThatCI)
- return false;
+ // This sorts the attributes with Attribute::AttrKinds coming first (sorted
+ // relative to their enum value) and then strings.
+ if (isEnumAttribute()) {
+ if (AI.isEnumAttribute()) return getKindAsEnum() < AI.getKindAsEnum();
+ if (AI.isAlignAttribute()) return true;
+ if (AI.isStringAttribute()) return true;
+ }
- return ThisCDA->getAsString() < ThatCDA->getAsString();
-}
+ if (isAlignAttribute()) {
+ if (AI.isEnumAttribute()) return false;
+ if (AI.isAlignAttribute()) return getValueAsInt() < AI.getValueAsInt();
+ if (AI.isStringAttribute()) return true;
+ }
-uint64_t AttributeImpl::Raw() const {
- // FIXME: Remove this.
- return cast<ConstantInt>(Data)->getZExtValue();
+ if (AI.isEnumAttribute()) return false;
+ if (AI.isAlignAttribute()) return false;
+ if (getKindAsString() == AI.getKindAsString())
+ return getValueAsString() < AI.getValueAsString();
+ return getKindAsString() < AI.getKindAsString();
}
uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) {
+ // FIXME: Remove this.
switch (Val) {
case Attribute::EndAttrKinds:
- case Attribute::AttrKindEmptyKey:
- case Attribute::AttrKindTombstoneKey:
llvm_unreachable("Synthetic enumerators which should never get here");
case Attribute::None: return 0;
case Attribute::ReturnsTwice: return 1 << 29;
case Attribute::UWTable: return 1 << 30;
case Attribute::NonLazyBind: return 1U << 31;
- case Attribute::AddressSafety: return 1ULL << 32;
+ case Attribute::SanitizeAddress: return 1ULL << 32;
case Attribute::MinSize: return 1ULL << 33;
case Attribute::NoDuplicate: return 1ULL << 34;
case Attribute::StackProtectStrong: return 1ULL << 35;
+ case Attribute::SanitizeThread: return 1ULL << 36;
+ case Attribute::SanitizeMemory: return 1ULL << 37;
+ case Attribute::NoBuiltin: return 1ULL << 38;
+ case Attribute::Returned: return 1ULL << 39;
+ case Attribute::Cold: return 1ULL << 40;
+ case Attribute::Builtin: return 1ULL << 41;
}
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
-}
-
-//===----------------------------------------------------------------------===//
-// AttributeWithIndex Definition
-//===----------------------------------------------------------------------===//
-
-AttributeWithIndex AttributeWithIndex::get(LLVMContext &C, unsigned Idx,
- AttributeSet AS) {
- // FIXME: This is temporary, but necessary for the conversion.
- AttrBuilder B(AS, Idx);
- return get(Idx, Attribute::get(C, B));
-}
-
//===----------------------------------------------------------------------===//
// AttributeSetNode Definition
//===----------------------------------------------------------------------===//
FoldingSetNodeID ID;
SmallVector<Attribute, 8> SortedAttrs(Attrs.begin(), Attrs.end());
- std::sort(SortedAttrs.begin(), SortedAttrs.end());
+ array_pod_sort(SortedAttrs.begin(), SortedAttrs.end());
for (SmallVectorImpl<Attribute>::iterator I = SortedAttrs.begin(),
E = SortedAttrs.end(); I != E; ++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 AttributeSetNode(SortedAttrs);
+ // Coallocate entries after the AttributeSetNode itself.
+ void *Mem = ::operator new(sizeof(AttributeSetNode) +
+ sizeof(Attribute) * SortedAttrs.size());
+ PA = new (Mem) AttributeSetNode(SortedAttrs);
pImpl->AttrsSetNodes.InsertNode(PA, InsertPoint);
}
return PA;
}
-//===----------------------------------------------------------------------===//
-// AttributeSetImpl Definition
-//===----------------------------------------------------------------------===//
+bool AttributeSetNode::hasAttribute(Attribute::AttrKind Kind) const {
+ for (iterator I = begin(), E = end(); I != E; ++I)
+ if (I->hasAttribute(Kind))
+ return true;
+ return false;
+}
-AttributeSet AttributeSet::getParamAttributes(unsigned Idx) const {
- // FIXME: Remove.
- return AttrList && hasAttributes(Idx) ?
- AttributeSet::get(AttrList->getContext(),
- AttributeWithIndex::get(Idx, getAttributes(Idx))) :
- AttributeSet();
+bool AttributeSetNode::hasAttribute(StringRef Kind) const {
+ for (iterator I = begin(), E = end(); I != E; ++I)
+ if (I->hasAttribute(Kind))
+ return true;
+ return false;
}
-AttributeSet AttributeSet::getRetAttributes() const {
- // FIXME: Remove.
- return AttrList && hasAttributes(ReturnIndex) ?
- AttributeSet::get(AttrList->getContext(),
- AttributeWithIndex::get(ReturnIndex,
- getAttributes(ReturnIndex))) :
- AttributeSet();
+Attribute AttributeSetNode::getAttribute(Attribute::AttrKind Kind) const {
+ for (iterator I = begin(), E = end(); I != E; ++I)
+ if (I->hasAttribute(Kind))
+ return *I;
+ return Attribute();
}
-AttributeSet AttributeSet::getFnAttributes() const {
- // FIXME: Remove.
- return AttrList && hasAttributes(FunctionIndex) ?
- AttributeSet::get(AttrList->getContext(),
- AttributeWithIndex::get(FunctionIndex,
- getAttributes(FunctionIndex))) :
- AttributeSet();
+Attribute AttributeSetNode::getAttribute(StringRef Kind) const {
+ for (iterator I = begin(), E = end(); I != E; ++I)
+ if (I->hasAttribute(Kind))
+ return *I;
+ return Attribute();
}
-AttributeSet AttributeSet::get(LLVMContext &C,
- ArrayRef<AttributeWithIndex> Attrs) {
- // If there are no attributes then return a null AttributesList pointer.
- if (Attrs.empty())
- return AttributeSet();
+unsigned AttributeSetNode::getAlignment() const {
+ for (iterator I = begin(), E = end(); I != E; ++I)
+ if (I->hasAttribute(Attribute::Alignment))
+ return I->getAlignment();
+ return 0;
+}
-#ifndef NDEBUG
- for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
- assert(Attrs[i].Attrs.hasAttributes() &&
- "Pointless attribute!");
- assert((!i || Attrs[i-1].Index < Attrs[i].Index) &&
- "Misordered AttributesList!");
+unsigned AttributeSetNode::getStackAlignment() const {
+ for (iterator I = begin(), E = end(); I != E; ++I)
+ if (I->hasAttribute(Attribute::StackAlignment))
+ return I->getStackAlignment();
+ return 0;
+}
+
+std::string AttributeSetNode::getAsString(bool InAttrGrp) const {
+ std::string Str;
+ for (iterator I = begin(), E = end(); I != E; ++I) {
+ if (I != begin())
+ Str += ' ';
+ Str += I->getAsString(InAttrGrp);
}
-#endif
+ return Str;
+}
- // Otherwise, build a key to look up the existing attributes.
+//===----------------------------------------------------------------------===//
+// AttributeSetImpl Definition
+//===----------------------------------------------------------------------===//
+
+uint64_t AttributeSetImpl::Raw(unsigned Index) const {
+ for (unsigned I = 0, E = getNumAttributes(); I != E; ++I) {
+ if (getSlotIndex(I) != Index) continue;
+ const AttributeSetNode *ASN = getSlotNode(I);
+ uint64_t Mask = 0;
+
+ for (AttributeSetNode::iterator II = ASN->begin(),
+ IE = ASN->end(); II != IE; ++II) {
+ Attribute Attr = *II;
+
+ // This cannot handle string attributes.
+ if (Attr.isStringAttribute()) continue;
+
+ Attribute::AttrKind Kind = Attr.getKindAsEnum();
+
+ if (Kind == Attribute::Alignment)
+ Mask |= (Log2_32(ASN->getAlignment()) + 1) << 16;
+ else if (Kind == Attribute::StackAlignment)
+ Mask |= (Log2_32(ASN->getStackAlignment()) + 1) << 26;
+ else
+ Mask |= AttributeImpl::getAttrMask(Kind);
+ }
+
+ return Mask;
+ }
+
+ return 0;
+}
+
+//===----------------------------------------------------------------------===//
+// AttributeSet Construction and Mutation Methods
+//===----------------------------------------------------------------------===//
+
+AttributeSet
+AttributeSet::getImpl(LLVMContext &C,
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> > Attrs) {
LLVMContextImpl *pImpl = C.pImpl;
FoldingSetNodeID ID;
AttributeSetImpl::Profile(ID, Attrs);
// 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);
+ // Coallocate entries after the AttributeSetImpl itself.
+ void *Mem = ::operator new(sizeof(AttributeSetImpl) +
+ sizeof(std::pair<unsigned, AttributeSetNode *>) *
+ Attrs.size());
+ PA = new (Mem) AttributeSetImpl(C, Attrs);
pImpl->AttrsLists.InsertNode(PA, InsertPoint);
}
return AttributeSet(PA);
}
-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.
+AttributeSet AttributeSet::get(LLVMContext &C,
+ 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((!i || Attrs[i-1].first <= Attrs[i].first) &&
+ "Misordered Attributes list!");
+ assert(!Attrs[i].second.hasAttribute(Attribute::None) &&
+ "Pointless attribute!");
+ }
+#endif
+
+ // 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;
+ }
+
+ AttrPairVec.push_back(std::make_pair(Index,
+ AttributeSetNode::get(C, AttrVec)));
+ }
+
+ 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 Index, AttrBuilder &B) {
if (!B.hasAttributes())
return AttributeSet();
- return get(C, AttributeWithIndex::get(Idx, Attribute::get(C, B)));
+
+ // Add target-independent attributes.
+ SmallVector<std::pair<unsigned, Attribute>, 8> Attrs;
+ for (Attribute::AttrKind Kind = Attribute::None;
+ Kind != Attribute::EndAttrKinds; Kind = Attribute::AttrKind(Kind + 1)) {
+ if (!B.contains(Kind))
+ continue;
+
+ if (Kind == Attribute::Alignment)
+ Attrs.push_back(std::make_pair(Index, Attribute::
+ getWithAlignment(C, B.getAlignment())));
+ else if (Kind == Attribute::StackAlignment)
+ Attrs.push_back(std::make_pair(Index, Attribute::
+ getWithStackAlignment(C, B.getStackAlignment())));
+ else
+ Attrs.push_back(std::make_pair(Index, Attribute::get(C, Kind)));
+ }
+
+ // Add target-dependent (string) attributes.
+ for (AttrBuilder::td_iterator I = B.td_begin(), E = B.td_end();
+ I != E; ++I)
+ Attrs.push_back(std::make_pair(Index, Attribute::get(C, I->first,I->second)));
+
+ return get(C, Attrs);
}
-AttributeSet AttributeSet::get(LLVMContext &C, unsigned Idx,
+AttributeSet AttributeSet::get(LLVMContext &C, unsigned Index,
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(Index, 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 (!AS.AttrList) continue;
- AttrList.append(AS.AttrList->AttrList.begin(), AS.AttrList->AttrList.end());
+ if (Attrs.empty()) return AttributeSet();
+ if (Attrs.size() == 1) return Attrs[0];
+
+ SmallVector<std::pair<unsigned, AttributeSetNode*>, 8> AttrNodeVec;
+ AttributeSetImpl *A0 = Attrs[0].pImpl;
+ if (A0)
+ AttrNodeVec.append(A0->getNode(0), A0->getNode(A0->getNumAttributes()));
+ // Copy all attributes from Attrs into AttrNodeVec while keeping AttrNodeVec
+ // ordered by index. Because we know that each list in Attrs is ordered by
+ // index we only need to merge each successive list in rather than doing a
+ // full sort.
+ for (unsigned I = 1, E = Attrs.size(); I != E; ++I) {
+ AttributeSetImpl *AS = Attrs[I].pImpl;
+ if (!AS) continue;
+ SmallVector<std::pair<unsigned, AttributeSetNode *>, 8>::iterator
+ ANVI = AttrNodeVec.begin(), ANVE;
+ for (const AttributeSetImpl::IndexAttrPair
+ *AI = AS->getNode(0),
+ *AE = AS->getNode(AS->getNumAttributes());
+ AI != AE; ++AI) {
+ ANVE = AttrNodeVec.end();
+ while (ANVI != ANVE && ANVI->first <= AI->first)
+ ++ANVI;
+ ANVI = AttrNodeVec.insert(ANVI, *AI) + 1;
+ }
+ }
+
+ return getImpl(C, AttrNodeVec);
+}
+
+AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Index,
+ Attribute::AttrKind Attr) const {
+ if (hasAttribute(Index, Attr)) return *this;
+ return addAttributes(C, Index, AttributeSet::get(C, Index, Attr));
+}
+
+AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Index,
+ StringRef Kind) const {
+ llvm::AttrBuilder B;
+ B.addAttribute(Kind);
+ return addAttributes(C, Index, AttributeSet::get(C, Index, B));
+}
+
+AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Index,
+ StringRef Kind, StringRef Value) const {
+ llvm::AttrBuilder B;
+ B.addAttribute(Kind, Value);
+ return addAttributes(C, Index, AttributeSet::get(C, Index, B));
+}
+
+AttributeSet AttributeSet::addAttributes(LLVMContext &C, unsigned Index,
+ AttributeSet Attrs) const {
+ if (!pImpl) return Attrs;
+ if (!Attrs.pImpl) return *this;
+
+#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(Index);
+ unsigned NewAlign = Attrs.getParamAlignment(Index);
+ assert((!OldAlign || !NewAlign || OldAlign == NewAlign) &&
+ "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) >= Index) {
+ if (getSlotIndex(I) == Index) AS = getSlotAttributes(LastIndex++);
+ break;
+ }
+ LastIndex = I + 1;
+ AttrSet.push_back(getSlotAttributes(I));
}
- return get(C, AttrList);
+ // Now add the attribute into the correct slot. There may already be an
+ // AttributeSet there.
+ AttrBuilder B(AS, Index);
+
+ for (unsigned I = 0, E = Attrs.pImpl->getNumAttributes(); I != E; ++I)
+ if (Attrs.getSlotIndex(I) == Index) {
+ for (AttributeSetImpl::iterator II = Attrs.pImpl->begin(I),
+ IE = Attrs.pImpl->end(I); II != IE; ++II)
+ B.addAttribute(*II);
+ break;
+ }
+
+ AttrSet.push_back(AttributeSet::get(C, Index, B));
+
+ // Add the remaining attribute slots.
+ for (unsigned I = LastIndex, E = NumAttrs; I < E; ++I)
+ AttrSet.push_back(getSlotAttributes(I));
+
+ return get(C, AttrSet);
+}
+
+AttributeSet AttributeSet::removeAttribute(LLVMContext &C, unsigned Index,
+ Attribute::AttrKind Attr) const {
+ if (!hasAttribute(Index, Attr)) return *this;
+ return removeAttributes(C, Index, AttributeSet::get(C, Index, Attr));
+}
+
+AttributeSet AttributeSet::removeAttributes(LLVMContext &C, unsigned Index,
+ 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(Index, 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) >= Index) {
+ if (getSlotIndex(I) == Index) 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, Index);
+
+ for (unsigned I = 0, E = Attrs.pImpl->getNumAttributes(); I != E; ++I)
+ if (Attrs.getSlotIndex(I) == Index) {
+ B.removeAttributes(Attrs.pImpl->getSlotAttributes(I), Index);
+ break;
+ }
+
+ AttrSet.push_back(AttributeSet::get(C, Index, B));
+
+ // Add the remaining attribute slots.
+ for (unsigned I = LastIndex, E = NumAttrs; I < E; ++I)
+ AttrSet.push_back(getSlotAttributes(I));
+
+ return get(C, AttrSet);
}
//===----------------------------------------------------------------------===//
-// AttributeSet Method Implementations
+// AttributeSet Accessor Methods
//===----------------------------------------------------------------------===//
-const AttributeSet &AttributeSet::operator=(const AttributeSet &RHS) {
- AttrList = RHS.AttrList;
- return *this;
+LLVMContext &AttributeSet::getContext() const {
+ return pImpl->getContext();
}
-/// getNumSlots - 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 AttrList ? AttrList->getNumAttributes() : 0;
+AttributeSet AttributeSet::getParamAttributes(unsigned Index) const {
+ return pImpl && hasAttributes(Index) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> >(
+ std::make_pair(Index, getAttributes(Index)))) :
+ AttributeSet();
}
-unsigned AttributeSet::getSlotIndex(unsigned Slot) const {
- assert(AttrList && Slot < AttrList->getNumAttributes() &&
- "Slot # out of range!");
- return AttrList->getSlotIndex(Slot);
+AttributeSet AttributeSet::getRetAttributes() const {
+ return pImpl && hasAttributes(ReturnIndex) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> >(
+ std::make_pair(ReturnIndex,
+ getAttributes(ReturnIndex)))) :
+ AttributeSet();
}
-AttributeSet AttributeSet::getSlotAttributes(unsigned Slot) const {
- assert(AttrList && Slot < AttrList->getNumAttributes() &&
- "Slot # out of range!");
- return AttrList->getSlotAttributes(Slot);
+AttributeSet AttributeSet::getFnAttributes() const {
+ return pImpl && hasAttributes(FunctionIndex) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> >(
+ std::make_pair(FunctionIndex,
+ getAttributes(FunctionIndex)))) :
+ AttributeSet();
}
bool AttributeSet::hasAttribute(unsigned Index, Attribute::AttrKind Kind) const{
- return getAttributes(Index).hasAttribute(Kind);
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->hasAttribute(Kind) : false;
+}
+
+bool AttributeSet::hasAttribute(unsigned Index, StringRef Kind) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->hasAttribute(Kind) : false;
}
bool AttributeSet::hasAttributes(unsigned Index) const {
- return getAttributes(Index).hasAttributes();
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->hasAttributes() : false;
+}
+
+/// \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),
+ IE = pImpl->end(I); II != IE; ++II)
+ if (II->hasAttribute(Attr))
+ return true;
+
+ return false;
}
-std::string AttributeSet::getAsString(unsigned Index) const {
- return getAttributes(Index).getAsString();
+Attribute AttributeSet::getAttribute(unsigned Index,
+ Attribute::AttrKind Kind) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getAttribute(Kind) : Attribute();
}
-unsigned AttributeSet::getParamAlignment(unsigned Idx) const {
- return getAttributes(Idx).getAlignment();
+Attribute AttributeSet::getAttribute(unsigned Index,
+ StringRef Kind) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getAttribute(Kind) : Attribute();
+}
+
+unsigned AttributeSet::getParamAlignment(unsigned Index) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getAlignment() : 0;
}
unsigned AttributeSet::getStackAlignment(unsigned Index) const {
- return getAttributes(Index).getStackAlignment();
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getStackAlignment() : 0;
+}
+
+std::string AttributeSet::getAsString(unsigned Index,
+ bool InAttrGrp) const {
+ AttributeSetNode *ASN = getAttributes(Index);
+ return ASN ? ASN->getAsString(InAttrGrp) : std::string("");
+}
+
+/// \brief The attributes for the specified index are returned.
+AttributeSetNode *AttributeSet::getAttributes(unsigned Index) const {
+ if (!pImpl) return 0;
+
+ // Loop through to find the attribute node we want.
+ for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I)
+ if (pImpl->getSlotIndex(I) == Index)
+ return pImpl->getSlotNode(I);
+
+ return 0;
+}
+
+AttributeSet::iterator AttributeSet::begin(unsigned Slot) const {
+ if (!pImpl)
+ return ArrayRef<Attribute>().begin();
+ return pImpl->begin(Slot);
+}
+
+AttributeSet::iterator AttributeSet::end(unsigned Slot) const {
+ if (!pImpl)
+ return ArrayRef<Attribute>().end();
+ return pImpl->end(Slot);
+}
+
+//===----------------------------------------------------------------------===//
+// AttributeSet Introspection Methods
+//===----------------------------------------------------------------------===//
+
+/// \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;
+}
+
+unsigned AttributeSet::getSlotIndex(unsigned Slot) const {
+ assert(pImpl && Slot < pImpl->getNumAttributes() &&
+ "Slot # out of range!");
+ return pImpl->getSlotIndex(Slot);
+}
+
+AttributeSet AttributeSet::getSlotAttributes(unsigned Slot) const {
+ assert(pImpl && Slot < pImpl->getNumAttributes() &&
+ "Slot # out of range!");
+ return pImpl->getSlotAttributes(Slot);
}
uint64_t AttributeSet::Raw(unsigned Index) const {
// FIXME: Remove this.
- return getAttributes(Index).Raw();
+ return pImpl ? pImpl->Raw(Index) : 0;
}
-/// getAttributes - The attributes for the specified index are returned.
-Attribute AttributeSet::getAttributes(unsigned Idx) const {
- if (AttrList == 0) return Attribute();
+void AttributeSet::dump() const {
+ dbgs() << "PAL[\n";
- ArrayRef<AttributeWithIndex> Attrs = AttrList->getAttributes();
- for (unsigned i = 0, e = Attrs.size(); i != e && Attrs[i].Index <= Idx; ++i)
- if (Attrs[i].Index == Idx)
- return Attrs[i].Attrs;
+ for (unsigned i = 0, e = getNumSlots(); i < e; ++i) {
+ uint64_t Index = getSlotIndex(i);
+ dbgs() << " { ";
+ if (Index == ~0U)
+ dbgs() << "~0U";
+ else
+ dbgs() << Index;
+ dbgs() << " => " << getAsString(Index) << " }\n";
+ }
- return Attribute();
+ dbgs() << "]\n";
}
-/// hasAttrSomewhere - 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 (AttrList == 0) return false;
+//===----------------------------------------------------------------------===//
+// AttrBuilder Method Implementations
+//===----------------------------------------------------------------------===//
- ArrayRef<AttributeWithIndex> Attrs = AttrList->getAttributes();
- for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
- if (Attrs[i].Attrs.hasAttribute(Attr))
- return true;
+AttrBuilder::AttrBuilder(AttributeSet AS, unsigned Index)
+ : Attrs(0), Alignment(0), StackAlignment(0) {
+ AttributeSetImpl *pImpl = AS.pImpl;
+ if (!pImpl) return;
- return false;
-}
+ for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
+ if (pImpl->getSlotIndex(I) != Index) continue;
-AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Idx,
- Attribute::AttrKind Attr) const {
- return addAttr(C, Idx, Attribute::get(C, Attr));
+ for (AttributeSetImpl::iterator II = pImpl->begin(I),
+ IE = pImpl->end(I); II != IE; ++II)
+ addAttribute(*II);
+
+ break;
+ }
}
-AttributeSet AttributeSet::addAttributes(LLVMContext &C, unsigned Idx,
- AttributeSet Attrs) const {
- return addAttr(C, Idx, Attrs.getAttributes(Idx));
+void AttrBuilder::clear() {
+ Attrs.reset();
+ Alignment = StackAlignment = 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 &AttrBuilder::addAttribute(Attribute::AttrKind Val) {
+ assert((unsigned)Val < Attribute::EndAttrKinds && "Attribute out of range!");
+ assert(Val != Attribute::Alignment && Val != Attribute::StackAlignment &&
+ "Adding alignment attribute without adding alignment value!");
+ Attrs[Val] = true;
+ return *this;
+}
- AttrBuilder NewAttrs =
- AttrBuilder(OldAttrs).addAttributes(Attrs);
- if (NewAttrs == AttrBuilder(OldAttrs))
+AttrBuilder &AttrBuilder::addAttribute(Attribute Attr) {
+ if (Attr.isStringAttribute()) {
+ addAttribute(Attr.getKindAsString(), Attr.getValueAsString());
return *this;
+ }
+
+ Attribute::AttrKind Kind = Attr.getKindAsEnum();
+ Attrs[Kind] = true;
+
+ if (Kind == Attribute::Alignment)
+ Alignment = Attr.getAlignment();
+ else if (Kind == Attribute::StackAlignment)
+ StackAlignment = Attr.getStackAlignment();
+ return *this;
+}
- SmallVector<AttributeWithIndex, 8> NewAttrList;
- if (AttrList == 0)
- NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
- else {
- ArrayRef<AttributeWithIndex> OldAttrList = AttrList->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;
+AttrBuilder &AttrBuilder::addAttribute(StringRef A, StringRef V) {
+ TargetDepAttrs[A] = V;
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
+ assert((unsigned)Val < Attribute::EndAttrKinds && "Attribute out of range!");
+ Attrs[Val] = false;
+
+ if (Val == Attribute::Alignment)
+ Alignment = 0;
+ else if (Val == Attribute::StackAlignment)
+ StackAlignment = 0;
+
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::removeAttributes(AttributeSet A, uint64_t Index) {
+ unsigned Slot = ~0U;
+ for (unsigned I = 0, E = A.getNumSlots(); I != E; ++I)
+ if (A.getSlotIndex(I) == Index) {
+ Slot = I;
+ break;
}
- NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
+ assert(Slot != ~0U && "Couldn't find index in AttributeSet!");
+
+ for (AttributeSet::iterator I = A.begin(Slot), E = A.end(Slot); I != E; ++I) {
+ Attribute Attr = *I;
+ if (Attr.isEnumAttribute() || Attr.isAlignAttribute()) {
+ Attribute::AttrKind Kind = I->getKindAsEnum();
+ Attrs[Kind] = false;
- // Copy attributes for arguments after this one.
- NewAttrList.insert(NewAttrList.end(),
- OldAttrList.begin()+i, OldAttrList.end());
+ if (Kind == Attribute::Alignment)
+ Alignment = 0;
+ else if (Kind == Attribute::StackAlignment)
+ StackAlignment = 0;
+ } else {
+ assert(Attr.isStringAttribute() && "Invalid attribute type!");
+ std::map<std::string, std::string>::iterator
+ Iter = TargetDepAttrs.find(Attr.getKindAsString());
+ if (Iter != TargetDepAttrs.end())
+ TargetDepAttrs.erase(Iter);
+ }
}
- return get(C, NewAttrList);
+ return *this;
}
-AttributeSet AttributeSet::removeAttribute(LLVMContext &C, unsigned Idx,
- Attribute::AttrKind Attr) const {
- return removeAttr(C, Idx, Attribute::get(C, Attr));
+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;
}
-AttributeSet AttributeSet::removeAttributes(LLVMContext &C, unsigned Idx,
- AttributeSet Attrs) const {
- return removeAttr(C, Idx, Attrs.getAttributes(Idx));
+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[Attribute::Alignment] = true;
+ Alignment = Align;
+ return *this;
}
-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 (AttrList == 0) return AttributeSet();
+AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align) {
+ // Default alignment, allow the target to define how to align it.
+ if (Align == 0) return *this;
- Attribute OldAttrs = getAttributes(Idx);
- AttrBuilder NewAttrs =
- AttrBuilder(OldAttrs).removeAttributes(Attrs);
- if (NewAttrs == AttrBuilder(OldAttrs))
- return *this;
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x100 && "Alignment too large.");
+
+ Attrs[Attribute::StackAlignment] = true;
+ StackAlignment = Align;
+ return *this;
+}
- SmallVector<AttributeWithIndex, 8> NewAttrList;
- ArrayRef<AttributeWithIndex> OldAttrList = AttrList->getAttributes();
- unsigned i = 0, e = OldAttrList.size();
+AttrBuilder &AttrBuilder::merge(const AttrBuilder &B) {
+ // FIXME: What if both have alignments, but they don't match?!
+ if (!Alignment)
+ Alignment = B.Alignment;
- // Copy attributes for arguments before this one.
- for (; i != e && OldAttrList[i].Index < Idx; ++i)
- NewAttrList.push_back(OldAttrList[i]);
+ if (!StackAlignment)
+ StackAlignment = B.StackAlignment;
- // 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));
+ Attrs |= B.Attrs;
- // Copy attributes for arguments after this one.
- NewAttrList.insert(NewAttrList.end(),
- OldAttrList.begin()+i, OldAttrList.end());
+ for (td_const_iterator I = B.TargetDepAttrs.begin(),
+ E = B.TargetDepAttrs.end(); I != E; ++I)
+ TargetDepAttrs[I->first] = I->second;
- return get(C, NewAttrList);
+ return *this;
}
-void AttributeSet::dump() const {
- dbgs() << "PAL[ ";
- for (unsigned i = 0; i < getNumSlots(); ++i) {
- unsigned Index = getSlotIndex(i);
- dbgs() << "{ " << Index << " => " << getAsString(Index) << " } ";
+bool AttrBuilder::contains(StringRef A) const {
+ return TargetDepAttrs.find(A) != TargetDepAttrs.end();
+}
+
+bool AttrBuilder::hasAttributes() const {
+ return !Attrs.none() || !TargetDepAttrs.empty();
+}
+
+bool AttrBuilder::hasAttributes(AttributeSet A, uint64_t Index) const {
+ unsigned Slot = ~0U;
+ for (unsigned I = 0, E = A.getNumSlots(); I != E; ++I)
+ if (A.getSlotIndex(I) == Index) {
+ Slot = I;
+ break;
+ }
+
+ assert(Slot != ~0U && "Couldn't find the index!");
+
+ for (AttributeSet::iterator I = A.begin(Slot), E = A.end(Slot);
+ I != E; ++I) {
+ Attribute Attr = *I;
+ if (Attr.isEnumAttribute() || Attr.isAlignAttribute()) {
+ if (Attrs[I->getKindAsEnum()])
+ return true;
+ } else {
+ assert(Attr.isStringAttribute() && "Invalid attribute kind!");
+ return TargetDepAttrs.find(Attr.getKindAsString())!=TargetDepAttrs.end();
+ }
}
- dbgs() << "]\n";
+ return false;
+}
+
+bool AttrBuilder::hasAlignmentAttr() const {
+ return Alignment != 0;
+}
+
+bool AttrBuilder::operator==(const AttrBuilder &B) {
+ if (Attrs != B.Attrs)
+ return false;
+
+ for (td_const_iterator I = TargetDepAttrs.begin(),
+ E = TargetDepAttrs.end(); I != E; ++I)
+ if (B.TargetDepAttrs.find(I->first) == B.TargetDepAttrs.end())
+ return false;
+
+ return Alignment == B.Alignment && StackAlignment == B.StackAlignment;
+}
+
+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[I] = true;
+
+ 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::Nest)
.addAttribute(Attribute::NoAlias)
.addAttribute(Attribute::NoCapture)
+ .addAttribute(Attribute::ReadNone)
+ .addAttribute(Attribute::ReadOnly)
.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);
}
-
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