//
//===----------------------------------------------------------------------===//
//
-// This file implements the AttributesList class and Attribute utilities.
+// This file implements the Attributes, AttributeImpl, AttrBuilder,
+// AttributeListImpl, and AttrListPtr classes.
//
//===----------------------------------------------------------------------===//
#include "llvm/Attributes.h"
+#include "AttributesImpl.h"
#include "LLVMContextImpl.h"
#include "llvm/Type.h"
#include "llvm/ADT/StringExtras.h"
// Attributes Implementation
//===----------------------------------------------------------------------===//
-Attributes::Attributes(uint64_t Val) : Attrs(Val) {}
-
-Attributes::Attributes(Attribute::AttrConst Val) : Attrs(Val.v) {}
-
-Attributes::Attributes(AttributesImpl *A) : Attrs(A->Bits) {}
-
-Attributes::Attributes(const Attributes &A) : Attrs(A.Attrs) {}
-
-// FIXME: This is temporary until we have implemented the uniquified version of
-// AttributesImpl.
-Attributes Attributes::get(Attributes::Builder &B) {
- return Attributes(B.Bits);
+Attributes Attributes::get(LLVMContext &Context, ArrayRef<AttrVal> Vals) {
+ AttrBuilder B;
+ for (ArrayRef<AttrVal>::iterator I = Vals.begin(), E = Vals.end();
+ I != E; ++I)
+ B.addAttribute(*I);
+ return Attributes::get(Context, B);
}
-Attributes Attributes::get(LLVMContext &Context, Attributes::Builder &B) {
+Attributes Attributes::get(LLVMContext &Context, AttrBuilder &B) {
// If there are no attributes, return an empty Attributes class.
- if (B.Bits == 0)
+ if (!B.hasAttributes())
return Attributes();
// Otherwise, build a key to look up the existing attributes.
LLVMContextImpl *pImpl = Context.pImpl;
FoldingSetNodeID ID;
- ID.AddInteger(B.Bits);
+ ID.AddInteger(B.Raw());
void *InsertPoint;
AttributesImpl *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 AttributesImpl(B.Bits);
+ PA = new AttributesImpl(B.Raw());
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
}
return Attributes(PA);
}
-bool Attributes::hasAttributes(const Attributes &A) const {
- return Attrs.hasAttributes(A);
-}
-bool Attributes::hasAddressSafetyAttr() const {
- return Attrs.hasAttribute(Attribute::AddressSafety_i);
-}
-bool Attributes::hasAlignmentAttr() const {
- return Attrs.hasAttribute(Attribute::Alignment_i);
-}
-bool Attributes::hasAlwaysInlineAttr() const {
- return Attrs.hasAttribute(Attribute::AlwaysInline_i);
-}
-bool Attributes::hasByValAttr() const {
- return Attrs.hasAttribute(Attribute::ByVal_i);
-}
-bool Attributes::hasInlineHintAttr() const {
- return Attrs.hasAttribute(Attribute::InlineHint_i);
-}
-bool Attributes::hasInRegAttr() const {
- return Attrs.hasAttribute(Attribute::InReg_i);
-}
-bool Attributes::hasNakedAttr() const {
- return Attrs.hasAttribute(Attribute::Naked_i);
-}
-bool Attributes::hasNestAttr() const {
- return Attrs.hasAttribute(Attribute::Nest_i);
-}
-bool Attributes::hasNoAliasAttr() const {
- return Attrs.hasAttribute(Attribute::NoAlias_i);
-}
-bool Attributes::hasNoCaptureAttr() const {
- return Attrs.hasAttribute(Attribute::NoCapture_i);
-}
-bool Attributes::hasNoImplicitFloatAttr() const {
- return Attrs.hasAttribute(Attribute::NoImplicitFloat_i);
-}
-bool Attributes::hasNoInlineAttr() const {
- return Attrs.hasAttribute(Attribute::NoInline_i);
-}
-bool Attributes::hasNonLazyBindAttr() const {
- return Attrs.hasAttribute(Attribute::NonLazyBind_i);
-}
-bool Attributes::hasNoRedZoneAttr() const {
- return Attrs.hasAttribute(Attribute::NoRedZone_i);
+bool Attributes::hasAttribute(AttrVal Val) const {
+ return Attrs && Attrs->hasAttribute(Val);
}
-bool Attributes::hasNoReturnAttr() const {
- return Attrs.hasAttribute(Attribute::NoReturn_i);
-}
-bool Attributes::hasNoUnwindAttr() const {
- return Attrs.hasAttribute(Attribute::NoUnwind_i);
-}
-bool Attributes::hasOptimizeForSizeAttr() const {
- return Attrs.hasAttribute(Attribute::OptimizeForSize_i);
-}
-bool Attributes::hasReadNoneAttr() const {
- return Attrs.hasAttribute(Attribute::ReadNone_i);
-}
-bool Attributes::hasReadOnlyAttr() const {
- return Attrs.hasAttribute(Attribute::ReadOnly_i);
-}
-bool Attributes::hasReturnsTwiceAttr() const {
- return Attrs.hasAttribute(Attribute::ReturnsTwice_i);
-}
-bool Attributes::hasSExtAttr() const {
- return Attrs.hasAttribute(Attribute::SExt_i);
-}
-bool Attributes::hasStackAlignmentAttr() const {
- return Attrs.hasAttribute(Attribute::StackAlignment_i);
-}
-bool Attributes::hasStackProtectAttr() const {
- return Attrs.hasAttribute(Attribute::StackProtect_i);
-}
-bool Attributes::hasStackProtectReqAttr() const {
- return Attrs.hasAttribute(Attribute::StackProtectReq_i);
-}
-bool Attributes::hasStructRetAttr() const {
- return Attrs.hasAttribute(Attribute::StructRet_i);
-}
-bool Attributes::hasUWTableAttr() const {
- return Attrs.hasAttribute(Attribute::UWTable_i);
+
+bool Attributes::hasAttributes() const {
+ return Attrs && Attrs->hasAttributes();
}
-bool Attributes::hasZExtAttr() const {
- return Attrs.hasAttribute(Attribute::ZExt_i);
+
+bool Attributes::hasAttributes(const Attributes &A) const {
+ return Attrs && Attrs->hasAttributes(A);
}
/// This returns the alignment field of an attribute as a byte alignment value.
unsigned Attributes::getAlignment() const {
- if (!hasAlignmentAttr())
+ if (!hasAttribute(Attributes::Alignment))
return 0;
- return 1U << ((Attrs.getAlignment() >> 16) - 1);
+ return 1U << ((Attrs->getAlignment() >> 16) - 1);
}
/// This returns the stack alignment field of an attribute as a byte alignment
/// value.
unsigned Attributes::getStackAlignment() const {
- if (!hasStackAlignmentAttr())
+ if (!hasAttribute(Attributes::StackAlignment))
return 0;
- return 1U << ((Attrs.getStackAlignment() >> 26) - 1);
-}
-
-bool Attributes::isEmptyOrSingleton() const {
- return Attrs.isEmptyOrSingleton();
-}
-
-Attributes Attributes::operator | (const Attributes &A) const {
- return Attributes(Raw() | A.Raw());
-}
-Attributes Attributes::operator & (const Attributes &A) const {
- return Attributes(Raw() & A.Raw());
-}
-Attributes Attributes::operator ^ (const Attributes &A) const {
- return Attributes(Raw() ^ A.Raw());
-}
-Attributes &Attributes::operator |= (const Attributes &A) {
- Attrs.Bits |= A.Raw();
- return *this;
-}
-Attributes &Attributes::operator &= (const Attributes &A) {
- Attrs.Bits &= A.Raw();
- return *this;
-}
-Attributes Attributes::operator ~ () const {
- return Attributes(~Raw());
+ return 1U << ((Attrs->getStackAlignment() >> 26) - 1);
}
uint64_t Attributes::Raw() const {
- return Attrs.Bits;
+ return Attrs ? Attrs->Raw() : 0;
}
Attributes Attributes::typeIncompatible(Type *Ty) {
- Attributes::Builder Incompatible;
-
- if (!Ty->isIntegerTy()) {
+ AttrBuilder Incompatible;
+
+ if (!Ty->isIntegerTy())
// Attributes that only apply to integers.
- Incompatible.addSExtAttr();
- Incompatible.addZExtAttr();
- }
-
- if (!Ty->isPointerTy()) {
+ Incompatible.addAttribute(Attributes::SExt)
+ .addAttribute(Attributes::ZExt);
+
+ if (!Ty->isPointerTy())
// Attributes that only apply to pointers.
- Incompatible.addByValAttr();
- Incompatible.addNestAttr();
- Incompatible.addNoAliasAttr();
- Incompatible.addNoCaptureAttr();
- Incompatible.addStructRetAttr();
- }
-
- return Attributes(Incompatible.Bits); // FIXME: Use Attributes::get().
+ Incompatible.addAttribute(Attributes::ByVal)
+ .addAttribute(Attributes::Nest)
+ .addAttribute(Attributes::NoAlias)
+ .addAttribute(Attributes::NoCapture)
+ .addAttribute(Attributes::StructRet);
+
+ return Attributes::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 Attributes::encodeLLVMAttributesForBitcode(Attributes Attrs) {
+ // 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() & 0xffff;
+ if (Attrs.hasAttribute(Attributes::Alignment))
+ EncodedAttrs |= Attrs.getAlignment() << 16;
+ EncodedAttrs |= (Attrs.Raw() & (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'.
+Attributes Attributes::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 Attributes::get(C, B);
}
std::string Attributes::getAsString() const {
std::string Result;
- if (hasZExtAttr())
+ if (hasAttribute(Attributes::ZExt))
Result += "zeroext ";
- if (hasSExtAttr())
+ if (hasAttribute(Attributes::SExt))
Result += "signext ";
- if (hasNoReturnAttr())
+ if (hasAttribute(Attributes::NoReturn))
Result += "noreturn ";
- if (hasNoUnwindAttr())
+ if (hasAttribute(Attributes::NoUnwind))
Result += "nounwind ";
- if (hasUWTableAttr())
+ if (hasAttribute(Attributes::UWTable))
Result += "uwtable ";
- if (hasReturnsTwiceAttr())
+ if (hasAttribute(Attributes::ReturnsTwice))
Result += "returns_twice ";
- if (hasInRegAttr())
+ if (hasAttribute(Attributes::InReg))
Result += "inreg ";
- if (hasNoAliasAttr())
+ if (hasAttribute(Attributes::NoAlias))
Result += "noalias ";
- if (hasNoCaptureAttr())
+ if (hasAttribute(Attributes::NoCapture))
Result += "nocapture ";
- if (hasStructRetAttr())
+ if (hasAttribute(Attributes::StructRet))
Result += "sret ";
- if (hasByValAttr())
+ if (hasAttribute(Attributes::ByVal))
Result += "byval ";
- if (hasNestAttr())
+ if (hasAttribute(Attributes::Nest))
Result += "nest ";
- if (hasReadNoneAttr())
+ if (hasAttribute(Attributes::ReadNone))
Result += "readnone ";
- if (hasReadOnlyAttr())
+ if (hasAttribute(Attributes::ReadOnly))
Result += "readonly ";
- if (hasOptimizeForSizeAttr())
+ if (hasAttribute(Attributes::OptimizeForSize))
Result += "optsize ";
- if (hasNoInlineAttr())
+ if (hasAttribute(Attributes::NoInline))
Result += "noinline ";
- if (hasInlineHintAttr())
+ if (hasAttribute(Attributes::InlineHint))
Result += "inlinehint ";
- if (hasAlwaysInlineAttr())
+ if (hasAttribute(Attributes::AlwaysInline))
Result += "alwaysinline ";
- if (hasStackProtectAttr())
+ if (hasAttribute(Attributes::StackProtect))
Result += "ssp ";
- if (hasStackProtectReqAttr())
+ if (hasAttribute(Attributes::StackProtectReq))
Result += "sspreq ";
- if (hasNoRedZoneAttr())
+ if (hasAttribute(Attributes::NoRedZone))
Result += "noredzone ";
- if (hasNoImplicitFloatAttr())
+ if (hasAttribute(Attributes::NoImplicitFloat))
Result += "noimplicitfloat ";
- if (hasNakedAttr())
+ if (hasAttribute(Attributes::Naked))
Result += "naked ";
- if (hasNonLazyBindAttr())
+ if (hasAttribute(Attributes::NonLazyBind))
Result += "nonlazybind ";
- if (hasAddressSafetyAttr())
+ if (hasAttribute(Attributes::AddressSafety))
Result += "address_safety ";
- if (hasStackAlignmentAttr()) {
+ if (hasAttribute(Attributes::ForceSizeOpt))
+ Result += "forcesizeopt ";
+ if (hasAttribute(Attributes::StackAlignment)) {
Result += "alignstack(";
Result += utostr(getStackAlignment());
Result += ") ";
}
- if (hasAlignmentAttr()) {
+ if (hasAttribute(Attributes::Alignment)) {
Result += "align ";
Result += utostr(getAlignment());
Result += " ";
}
//===----------------------------------------------------------------------===//
-// Attributes::Builder Implementation
+// AttrBuilder Implementation
//===----------------------------------------------------------------------===//
-void Attributes::Builder::addAddressSafetyAttr() {
- Bits |= Attribute::AddressSafety_i;
-}
-void Attributes::Builder::addAlwaysInlineAttr() {
- Bits |= Attribute::AlwaysInline_i;
-}
-void Attributes::Builder::addByValAttr() {
- Bits |= Attribute::ByVal_i;
-}
-void Attributes::Builder::addInlineHintAttr() {
- Bits |= Attribute::InlineHint_i;
-}
-void Attributes::Builder::addInRegAttr() {
- Bits |= Attribute::InReg_i;
-}
-void Attributes::Builder::addNakedAttr() {
- Bits |= Attribute::Naked_i;
-}
-void Attributes::Builder::addNestAttr() {
- Bits |= Attribute::Nest_i;
-}
-void Attributes::Builder::addNoAliasAttr() {
- Bits |= Attribute::NoAlias_i;
-}
-void Attributes::Builder::addNoCaptureAttr() {
- Bits |= Attribute::NoCapture_i;
-}
-void Attributes::Builder::addNoImplicitFloatAttr() {
- Bits |= Attribute::NoImplicitFloat_i;
-}
-void Attributes::Builder::addNoInlineAttr() {
- Bits |= Attribute::NoInline_i;
-}
-void Attributes::Builder::addNonLazyBindAttr() {
- Bits |= Attribute::NonLazyBind_i;
-}
-void Attributes::Builder::addNoRedZoneAttr() {
- Bits |= Attribute::NoRedZone_i;
-}
-void Attributes::Builder::addNoReturnAttr() {
- Bits |= Attribute::NoReturn_i;
-}
-void Attributes::Builder::addNoUnwindAttr() {
- Bits |= Attribute::NoUnwind_i;
-}
-void Attributes::Builder::addOptimizeForSizeAttr() {
- Bits |= Attribute::OptimizeForSize_i;
-}
-void Attributes::Builder::addReadNoneAttr() {
- Bits |= Attribute::ReadNone_i;
-}
-void Attributes::Builder::addReadOnlyAttr() {
- Bits |= Attribute::ReadOnly_i;
-}
-void Attributes::Builder::addReturnsTwiceAttr() {
- Bits |= Attribute::ReturnsTwice_i;
-}
-void Attributes::Builder::addSExtAttr() {
- Bits |= Attribute::SExt_i;
-}
-void Attributes::Builder::addStackProtectAttr() {
- Bits |= Attribute::StackProtect_i;
-}
-void Attributes::Builder::addStackProtectReqAttr() {
- Bits |= Attribute::StackProtectReq_i;
-}
-void Attributes::Builder::addStructRetAttr() {
- Bits |= Attribute::StructRet_i;
-}
-void Attributes::Builder::addUWTableAttr() {
- Bits |= Attribute::UWTable_i;
+AttrBuilder &AttrBuilder::addAttribute(Attributes::AttrVal Val){
+ Bits |= AttributesImpl::getAttrMask(Val);
+ return *this;
}
-void Attributes::Builder::addZExtAttr() {
- Bits |= Attribute::ZExt_i;
+
+AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
+ Bits |= Val;
+ return *this;
}
-void Attributes::Builder::addAlignmentAttr(unsigned Align) {
- if (Align == 0) return;
+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.");
Bits |= (Log2_32(Align) + 1) << 16;
+ return *this;
}
-void Attributes::Builder::addStackAlignmentAttr(unsigned Align) {
+AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align){
// Default alignment, allow the target to define how to align it.
- if (Align == 0) return;
+ if (Align == 0) return *this;
assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
assert(Align <= 0x100 && "Alignment too large.");
Bits |= (Log2_32(Align) + 1) << 26;
+ return *this;
}
-void Attributes::Builder::removeAttributes(const Attributes &A) {
- Bits &= ~A.Raw();
+AttrBuilder &AttrBuilder::removeAttribute(Attributes::AttrVal Val) {
+ Bits &= ~AttributesImpl::getAttrMask(Val);
+ return *this;
}
-void Attributes::Builder::removeAddressSafetyAttr() {
- Bits &= ~Attribute::AddressSafety_i;
-}
-void Attributes::Builder::removeAlwaysInlineAttr() {
- Bits &= ~Attribute::AlwaysInline_i;
-}
-void Attributes::Builder::removeByValAttr() {
- Bits &= ~Attribute::ByVal_i;
-}
-void Attributes::Builder::removeInlineHintAttr() {
- Bits &= ~Attribute::InlineHint_i;
-}
-void Attributes::Builder::removeInRegAttr() {
- Bits &= ~Attribute::InReg_i;
-}
-void Attributes::Builder::removeNakedAttr() {
- Bits &= ~Attribute::Naked_i;
-}
-void Attributes::Builder::removeNestAttr() {
- Bits &= ~Attribute::Nest_i;
-}
-void Attributes::Builder::removeNoAliasAttr() {
- Bits &= ~Attribute::NoAlias_i;
-}
-void Attributes::Builder::removeNoCaptureAttr() {
- Bits &= ~Attribute::NoCapture_i;
-}
-void Attributes::Builder::removeNoImplicitFloatAttr() {
- Bits &= ~Attribute::NoImplicitFloat_i;
-}
-void Attributes::Builder::removeNoInlineAttr() {
- Bits &= ~Attribute::NoInline_i;
-}
-void Attributes::Builder::removeNonLazyBindAttr() {
- Bits &= ~Attribute::NonLazyBind_i;
-}
-void Attributes::Builder::removeNoRedZoneAttr() {
- Bits &= ~Attribute::NoRedZone_i;
-}
-void Attributes::Builder::removeNoReturnAttr() {
- Bits &= ~Attribute::NoReturn_i;
-}
-void Attributes::Builder::removeNoUnwindAttr() {
- Bits &= ~Attribute::NoUnwind_i;
-}
-void Attributes::Builder::removeOptimizeForSizeAttr() {
- Bits &= ~Attribute::OptimizeForSize_i;
-}
-void Attributes::Builder::removeReadNoneAttr() {
- Bits &= ~Attribute::ReadNone_i;
-}
-void Attributes::Builder::removeReadOnlyAttr() {
- Bits &= ~Attribute::ReadOnly_i;
-}
-void Attributes::Builder::removeReturnsTwiceAttr() {
- Bits &= ~Attribute::ReturnsTwice_i;
-}
-void Attributes::Builder::removeSExtAttr() {
- Bits &= ~Attribute::SExt_i;
-}
-void Attributes::Builder::removeStackProtectAttr() {
- Bits &= ~Attribute::StackProtect_i;
-}
-void Attributes::Builder::removeStackProtectReqAttr() {
- Bits &= ~Attribute::StackProtectReq_i;
-}
-void Attributes::Builder::removeStructRetAttr() {
- Bits &= ~Attribute::StructRet_i;
-}
-void Attributes::Builder::removeUWTableAttr() {
- Bits &= ~Attribute::UWTable_i;
-}
-void Attributes::Builder::removeZExtAttr() {
- Bits &= ~Attribute::ZExt_i;
+AttrBuilder &AttrBuilder::addAttributes(const Attributes &A) {
+ Bits |= A.Raw();
+ return *this;
}
-void Attributes::Builder::removeAlignmentAttr() {
- Bits &= ~Attribute::Alignment_i;
+AttrBuilder &AttrBuilder::removeAttributes(const Attributes &A){
+ Bits &= ~A.Raw();
+ return *this;
}
-void Attributes::Builder::removeStackAlignmentAttr() {
- Bits &= ~Attribute::StackAlignment_i;
+
+bool AttrBuilder::hasAttribute(Attributes::AttrVal A) const {
+ return Bits & AttributesImpl::getAttrMask(A);
}
-bool Attributes::Builder::hasAttributes() const {
+bool AttrBuilder::hasAttributes() const {
return Bits != 0;
}
-bool Attributes::Builder::hasAttributes(const Attributes &A) const {
+bool AttrBuilder::hasAttributes(const Attributes &A) const {
return Bits & A.Raw();
}
-bool Attributes::Builder::hasAlignmentAttr() const {
- return Bits & Attribute::Alignment_i;
+bool AttrBuilder::hasAlignmentAttr() const {
+ return Bits & AttributesImpl::getAttrMask(Attributes::Alignment);
+}
+
+uint64_t AttrBuilder::getAlignment() const {
+ if (!hasAlignmentAttr())
+ return 0;
+ return 1U <<
+ (((Bits & AttributesImpl::getAttrMask(Attributes::Alignment)) >> 16) - 1);
}
-uint64_t Attributes::Builder::getAlignment() const {
+uint64_t AttrBuilder::getStackAlignment() const {
if (!hasAlignmentAttr())
return 0;
- return 1U << (((Bits & Attribute::Alignment_i) >> 16) - 1);
+ return 1U <<
+ (((Bits & AttributesImpl::getAttrMask(Attributes::StackAlignment))>>26)-1);
}
//===----------------------------------------------------------------------===//
// AttributeImpl Definition
//===----------------------------------------------------------------------===//
+uint64_t AttributesImpl::getAttrMask(uint64_t Val) {
+ switch (Val) {
+ case Attributes::None: return 0;
+ case Attributes::ZExt: return 1 << 0;
+ case Attributes::SExt: return 1 << 1;
+ case Attributes::NoReturn: return 1 << 2;
+ case Attributes::InReg: return 1 << 3;
+ case Attributes::StructRet: return 1 << 4;
+ case Attributes::NoUnwind: return 1 << 5;
+ case Attributes::NoAlias: return 1 << 6;
+ case Attributes::ByVal: return 1 << 7;
+ case Attributes::Nest: return 1 << 8;
+ case Attributes::ReadNone: return 1 << 9;
+ case Attributes::ReadOnly: return 1 << 10;
+ case Attributes::NoInline: return 1 << 11;
+ case Attributes::AlwaysInline: return 1 << 12;
+ case Attributes::OptimizeForSize: return 1 << 13;
+ case Attributes::StackProtect: return 1 << 14;
+ case Attributes::StackProtectReq: return 1 << 15;
+ case Attributes::Alignment: return 31 << 16;
+ case Attributes::NoCapture: return 1 << 21;
+ case Attributes::NoRedZone: return 1 << 22;
+ case Attributes::NoImplicitFloat: return 1 << 23;
+ case Attributes::Naked: return 1 << 24;
+ case Attributes::InlineHint: return 1 << 25;
+ case Attributes::StackAlignment: return 7 << 26;
+ case Attributes::ReturnsTwice: return 1 << 29;
+ case Attributes::UWTable: return 1 << 30;
+ case Attributes::NonLazyBind: return 1U << 31;
+ case Attributes::AddressSafety: return 1ULL << 32;
+ case Attributes::ForceSizeOpt: return 1ULL << 33;
+ }
+ llvm_unreachable("Unsupported attribute type");
+}
+
bool AttributesImpl::hasAttribute(uint64_t A) const {
- return (Bits & A) != 0;
+ return (Bits & getAttrMask(A)) != 0;
}
bool AttributesImpl::hasAttributes() const {
}
uint64_t AttributesImpl::getAlignment() const {
- return Bits & Attribute::Alignment_i;
+ return Bits & getAttrMask(Attributes::Alignment);
}
uint64_t AttributesImpl::getStackAlignment() const {
- return Bits & Attribute::StackAlignment_i;
-}
-
-bool AttributesImpl::isEmptyOrSingleton() const {
- return (Bits & (Bits - 1)) == 0;
+ return Bits & getAttrMask(Attributes::StackAlignment);
}
//===----------------------------------------------------------------------===//
class AttributeListImpl : public FoldingSetNode {
sys::cas_flag RefCount;
-
+
// AttributesList is uniqued, these should not be publicly available.
void operator=(const AttributeListImpl &) LLVM_DELETED_FUNCTION;
AttributeListImpl(const AttributeListImpl &) LLVM_DELETED_FUNCTION;
~AttributeListImpl(); // Private implementation
public:
SmallVector<AttributeWithIndex, 4> Attrs;
-
+
AttributeListImpl(ArrayRef<AttributeWithIndex> attrs)
: Attrs(attrs.begin(), attrs.end()) {
RefCount = 0;
}
-
+
void AddRef() {
sys::SmartScopedLock<true> Lock(*ALMutex);
++RefCount;
if (new_val == 0)
delete this;
}
-
+
void Profile(FoldingSetNodeID &ID) const {
Profile(ID, Attrs);
}
}
}
};
-}
+
+} // end llvm namespace
AttributeListImpl::~AttributeListImpl() {
// NOTE: Lock must be acquired by caller.
AttributesLists->RemoveNode(this);
}
-
AttrListPtr AttrListPtr::get(ArrayRef<AttributeWithIndex> Attrs) {
// If there are no attributes then return a null AttributesList pointer.
if (Attrs.empty())
return AttrListPtr();
-
+
#ifndef NDEBUG
for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
- assert(Attrs[i].Attrs.hasAttributes() &&
+ assert(Attrs[i].Attrs.hasAttributes() &&
"Pointless attribute!");
assert((!i || Attrs[i-1].Index < Attrs[i].Index) &&
"Misordered AttributesList!");
}
#endif
-
+
// Otherwise, build a key to look up the existing attributes.
FoldingSetNodeID ID;
AttributeListImpl::Profile(ID, Attrs);
void *InsertPos;
-
+
sys::SmartScopedLock<true> Lock(*ALMutex);
-
+
AttributeListImpl *PAL =
AttributesLists->FindNodeOrInsertPos(ID, InsertPos);
-
+
// If we didn't find any existing attributes of the same shape then
// create a new one and insert it.
if (!PAL) {
PAL = new AttributeListImpl(Attrs);
AttributesLists->InsertNode(PAL, InsertPos);
}
-
+
// Return the AttributesList that we found or created.
return AttrListPtr(PAL);
}
-
//===----------------------------------------------------------------------===//
// AttrListPtr Method Implementations
//===----------------------------------------------------------------------===//
}
AttrListPtr::AttrListPtr(const AttrListPtr &P) : AttrList(P.AttrList) {
- if (AttrList) AttrList->AddRef();
+ if (AttrList) AttrList->AddRef();
}
const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
if (AttrList) AttrList->DropRef();
}
-/// getNumSlots - Return the number of slots used in this attribute list.
+/// 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 AttrListPtr::getNumSlots() const {
return AttrList->Attrs[Slot];
}
-
-/// getAttributes - The attributes for the specified index are
-/// returned. Attributes for the result are denoted with Idx = 0.
-/// Function notes are denoted with idx = ~0.
+/// getAttributes - The attributes for the specified index are returned.
+/// Attributes for the result are denoted with Idx = 0. Function notes are
+/// denoted with idx = ~0.
Attributes AttrListPtr::getAttributes(unsigned Idx) const {
if (AttrList == 0) return Attributes();
-
+
const SmallVector<AttributeWithIndex, 4> &Attrs = AttrList->Attrs;
for (unsigned i = 0, e = Attrs.size(); i != e && Attrs[i].Index <= Idx; ++i)
if (Attrs[i].Index == Idx)
/// hasAttrSomewhere - Return true if the specified attribute is set for at
/// least one parameter or for the return value.
-bool AttrListPtr::hasAttrSomewhere(Attributes Attr) const {
+bool AttrListPtr::hasAttrSomewhere(Attributes::AttrVal Attr) const {
if (AttrList == 0) return false;
-
+
const SmallVector<AttributeWithIndex, 4> &Attrs = AttrList->Attrs;
for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
- if (Attrs[i].Attrs.hasAttributes(Attr))
+ if (Attrs[i].Attrs.hasAttribute(Attr))
return true;
return false;
}
return AttrList->Attrs[i].Attrs;
}
-AttrListPtr AttrListPtr::addAttr(unsigned Idx, Attributes Attrs) const {
+AttrListPtr AttrListPtr::addAttr(LLVMContext &C, unsigned Idx,
+ Attributes Attrs) const {
Attributes OldAttrs = getAttributes(Idx);
#ifndef NDEBUG
// FIXME it is not obvious how this should work for alignment.
assert((!OldAlign || !NewAlign || OldAlign == NewAlign) &&
"Attempt to change alignment!");
#endif
-
- Attributes NewAttrs = OldAttrs | Attrs;
- if (NewAttrs == OldAttrs)
+
+ AttrBuilder NewAttrs =
+ AttrBuilder(OldAttrs).addAttributes(Attrs);
+ if (NewAttrs == AttrBuilder(OldAttrs))
return *this;
-
+
SmallVector<AttributeWithIndex, 8> NewAttrList;
if (AttrList == 0)
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
// If there are attributes already at this index, merge them in.
if (i != e && OldAttrList[i].Index == Idx) {
- Attrs |= OldAttrList[i].Attrs;
+ Attrs =
+ Attributes::get(C, AttrBuilder(Attrs).
+ addAttributes(OldAttrList[i].Attrs));
++i;
}
-
+
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
-
+
// Copy attributes for arguments after this one.
- NewAttrList.insert(NewAttrList.end(),
+ NewAttrList.insert(NewAttrList.end(),
OldAttrList.begin()+i, OldAttrList.end());
}
-
+
return get(NewAttrList);
}
-AttrListPtr AttrListPtr::removeAttr(unsigned Idx, Attributes Attrs) const {
+AttrListPtr AttrListPtr::removeAttr(LLVMContext &C, unsigned Idx,
+ Attributes 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.hasAlignmentAttr() && "Attempt to exclude alignment!");
+ assert(!Attrs.hasAttribute(Attributes::Alignment) &&
+ "Attempt to exclude alignment!");
#endif
if (AttrList == 0) return AttrListPtr();
-
+
Attributes OldAttrs = getAttributes(Idx);
- Attributes NewAttrs = OldAttrs & ~Attrs;
- if (NewAttrs == OldAttrs)
+ AttrBuilder NewAttrs =
+ AttrBuilder(OldAttrs).removeAttributes(Attrs);
+ if (NewAttrs == AttrBuilder(OldAttrs))
return *this;
SmallVector<AttributeWithIndex, 8> NewAttrList;
const SmallVector<AttributeWithIndex, 4> &OldAttrList = AttrList->Attrs;
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.
assert(OldAttrList[i].Index == Idx && "Attribute isn't set?");
- Attrs = OldAttrList[i].Attrs & ~Attrs;
+ Attrs = Attributes::get(C, AttrBuilder(OldAttrList[i].Attrs).
+ removeAttributes(Attrs));
++i;
- if (Attrs) // If any attributes left for this parameter, add them.
+ if (Attrs.hasAttributes()) // If any attributes left for this param, add them.
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
-
+
// Copy attributes for arguments after this one.
- NewAttrList.insert(NewAttrList.end(),
+ NewAttrList.insert(NewAttrList.end(),
OldAttrList.begin()+i, OldAttrList.end());
-
+
return get(NewAttrList);
}
dbgs() << "PAL[ ";
for (unsigned i = 0; i < getNumSlots(); ++i) {
const AttributeWithIndex &PAWI = getSlot(i);
- dbgs() << "{" << PAWI.Index << "," << PAWI.Attrs << "} ";
+ dbgs() << "{" << PAWI.Index << "," << PAWI.Attrs.getAsString() << "} ";
}
-
+
dbgs() << "]\n";
}
projects / oota-llvm.git / blobdiff