-//===-- Attributes.cpp - Implement AttributesList -------------------------===//
+//===-- Attribute.cpp - Implement AttributesList -------------------------===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// This file implements the AttributesList class and Attribute utilities.
+// This file implements the Attribute, AttributeImpl, AttrBuilder,
+// AttributeSetImpl, and AttributeSet classes.
//
//===----------------------------------------------------------------------===//
#include "llvm/Attributes.h"
+#include "AttributeImpl.h"
#include "LLVMContextImpl.h"
-#include "llvm/Type.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Atomic.h"
-#include "llvm/Support/Mutex.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/Mutex.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Type.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
-// Attributes Implementation
+// Attribute Implementation
//===----------------------------------------------------------------------===//
-Attributes::Attributes(uint64_t Val) : Attrs(Val) {}
-
-Attributes::Attributes(Attribute::AttrConst Val) : Attrs(Val.v) {}
-
-Attributes::Attributes(AttributesImpl *A) : Attrs(A->Bits) {}
-
-// FIXME: This is temporary until we have implemented the uniquified version of
-// AttributesImpl.
-Attributes Attributes::get(Attributes::Builder &B) {
- return Attributes(B.Bits);
+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);
}
-Attributes Attributes::get(LLVMContext &Context, Attributes::Builder &B) {
- // If there are no attributes, return an empty Attributes class.
- if (B.Bits == 0)
- return Attributes();
+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.
LLVMContextImpl *pImpl = Context.pImpl;
FoldingSetNodeID ID;
- ID.AddInteger(B.Bits);
+ ID.AddInteger(B.getBitMask());
void *InsertPoint;
- AttributesImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, 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 AttributesImpl(B.Bits);
+ PA = new AttributeImpl(Context, B.getBitMask());
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
}
// Return the AttributesList that we found or created.
- return Attributes(PA);
+ return Attribute(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 Attribute::hasAttribute(AttrKind Val) const {
+ return pImpl && pImpl->hasAttribute(Val);
}
-bool Attributes::hasNoRedZoneAttr() const {
- return Attrs.hasAttribute(Attribute::NoRedZone_i);
-}
-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 Attribute::hasAttributes() const {
+ return pImpl && pImpl->hasAttributes();
}
-bool Attributes::hasZExtAttr() const {
- return Attrs.hasAttribute(Attribute::ZExt_i);
+
+bool Attribute::hasAttributes(const Attribute &A) const {
+ return pImpl && pImpl->hasAttributes(A);
}
/// This returns the alignment field of an attribute as a byte alignment value.
-unsigned Attributes::getAlignment() const {
- if (!hasAlignmentAttr())
+unsigned Attribute::getAlignment() const {
+ if (!hasAttribute(Attribute::Alignment))
return 0;
- return 1U << ((Attrs.getAlignment() >> 16) - 1);
+ return 1U << ((pImpl->getAlignment() >> 16) - 1);
}
/// This returns the stack alignment field of an attribute as a byte alignment
/// value.
-unsigned Attributes::getStackAlignment() const {
- if (!hasStackAlignmentAttr())
+unsigned Attribute::getStackAlignment() const {
+ if (!hasAttribute(Attribute::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());
-}
-
-uint64_t Attributes::Raw() const {
- return Attrs.Bits;
-}
-
-Attributes Attributes::typeIncompatible(Type *Ty) {
- Attributes::Builder Incompatible;
-
- if (!Ty->isIntegerTy()) {
- // Attributes that only apply to integers.
- Incompatible.addSExtAttr();
- Incompatible.addZExtAttr();
- }
-
- 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().
-}
-
-std::string Attributes::getAsString() const {
+ return 1U << ((pImpl->getStackAlignment() >> 26) - 1);
+}
+
+uint64_t Attribute::getBitMask() const {
+ return pImpl ? pImpl->getBitMask() : 0;
+}
+
+Attribute Attribute::typeIncompatible(Type *Ty) {
+ AttrBuilder Incompatible;
+
+ if (!Ty->isIntegerTy())
+ // Attribute that only apply to integers.
+ Incompatible.addAttribute(Attribute::SExt)
+ .addAttribute(Attribute::ZExt);
+
+ if (!Ty->isPointerTy())
+ // Attribute that only apply to pointers.
+ Incompatible.addAttribute(Attribute::ByVal)
+ .addAttribute(Attribute::Nest)
+ .addAttribute(Attribute::NoAlias)
+ .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 Attribute::encodeLLVMAttributesForBitcode(Attribute 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.getBitMask() & 0xffff;
+ if (Attrs.hasAttribute(Attribute::Alignment))
+ EncodedAttrs |= Attrs.getAlignment() << 16;
+ EncodedAttrs |= (Attrs.getBitMask() & (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 Attribute::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);
+}
+
+std::string Attribute::getAsString() const {
std::string Result;
- if (hasZExtAttr())
+ if (hasAttribute(Attribute::ZExt))
Result += "zeroext ";
- if (hasSExtAttr())
+ if (hasAttribute(Attribute::SExt))
Result += "signext ";
- if (hasNoReturnAttr())
+ if (hasAttribute(Attribute::NoReturn))
Result += "noreturn ";
- if (hasNoUnwindAttr())
+ if (hasAttribute(Attribute::NoUnwind))
Result += "nounwind ";
- if (hasUWTableAttr())
+ if (hasAttribute(Attribute::UWTable))
Result += "uwtable ";
- if (hasReturnsTwiceAttr())
+ if (hasAttribute(Attribute::ReturnsTwice))
Result += "returns_twice ";
- if (hasInRegAttr())
+ if (hasAttribute(Attribute::InReg))
Result += "inreg ";
- if (hasNoAliasAttr())
+ if (hasAttribute(Attribute::NoAlias))
Result += "noalias ";
- if (hasNoCaptureAttr())
+ if (hasAttribute(Attribute::NoCapture))
Result += "nocapture ";
- if (hasStructRetAttr())
+ if (hasAttribute(Attribute::StructRet))
Result += "sret ";
- if (hasByValAttr())
+ if (hasAttribute(Attribute::ByVal))
Result += "byval ";
- if (hasNestAttr())
+ if (hasAttribute(Attribute::Nest))
Result += "nest ";
- if (hasReadNoneAttr())
+ if (hasAttribute(Attribute::ReadNone))
Result += "readnone ";
- if (hasReadOnlyAttr())
+ if (hasAttribute(Attribute::ReadOnly))
Result += "readonly ";
- if (hasOptimizeForSizeAttr())
+ if (hasAttribute(Attribute::OptimizeForSize))
Result += "optsize ";
- if (hasNoInlineAttr())
+ if (hasAttribute(Attribute::NoInline))
Result += "noinline ";
- if (hasInlineHintAttr())
+ if (hasAttribute(Attribute::InlineHint))
Result += "inlinehint ";
- if (hasAlwaysInlineAttr())
+ if (hasAttribute(Attribute::AlwaysInline))
Result += "alwaysinline ";
- if (hasStackProtectAttr())
+ if (hasAttribute(Attribute::StackProtect))
Result += "ssp ";
- if (hasStackProtectReqAttr())
+ if (hasAttribute(Attribute::StackProtectReq))
Result += "sspreq ";
- if (hasNoRedZoneAttr())
+ if (hasAttribute(Attribute::NoRedZone))
Result += "noredzone ";
- if (hasNoImplicitFloatAttr())
+ if (hasAttribute(Attribute::NoImplicitFloat))
Result += "noimplicitfloat ";
- if (hasNakedAttr())
+ if (hasAttribute(Attribute::Naked))
Result += "naked ";
- if (hasNonLazyBindAttr())
+ if (hasAttribute(Attribute::NonLazyBind))
Result += "nonlazybind ";
- if (hasAddressSafetyAttr())
+ if (hasAttribute(Attribute::AddressSafety))
Result += "address_safety ";
- if (hasStackAlignmentAttr()) {
+ if (hasAttribute(Attribute::MinSize))
+ Result += "minsize ";
+ if (hasAttribute(Attribute::StackAlignment)) {
Result += "alignstack(";
Result += utostr(getStackAlignment());
Result += ") ";
}
- if (hasAlignmentAttr()) {
+ 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);
}
//===----------------------------------------------------------------------===//
-// 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(Attribute::AttrKind Val){
+ Bits |= AttributeImpl::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::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;
+AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
+ Bits &= ~AttributeImpl::getAttrMask(Val);
+ return *this;
}
-void Attributes::Builder::removeReadOnlyAttr() {
- Bits &= ~Attribute::ReadOnly_i;
+
+AttrBuilder &AttrBuilder::addAttributes(const Attribute &A) {
+ Bits |= A.getBitMask();
+ return *this;
}
-void Attributes::Builder::removeReturnsTwiceAttr() {
- Bits &= ~Attribute::ReturnsTwice_i;
+
+AttrBuilder &AttrBuilder::removeAttributes(const Attribute &A){
+ Bits &= ~A.getBitMask();
+ return *this;
}
-void Attributes::Builder::removeSExtAttr() {
- Bits &= ~Attribute::SExt_i;
+
+bool AttrBuilder::contains(Attribute::AttrKind A) const {
+ return Bits & AttributeImpl::getAttrMask(A);
}
-void Attributes::Builder::removeStackProtectAttr() {
- Bits &= ~Attribute::StackProtect_i;
+
+bool AttrBuilder::hasAttributes() const {
+ return Bits != 0;
}
-void Attributes::Builder::removeStackProtectReqAttr() {
- Bits &= ~Attribute::StackProtectReq_i;
+bool AttrBuilder::hasAttributes(const Attribute &A) const {
+ return Bits & A.getBitMask();
}
-void Attributes::Builder::removeStructRetAttr() {
- Bits &= ~Attribute::StructRet_i;
+bool AttrBuilder::hasAlignmentAttr() const {
+ return Bits & AttributeImpl::getAttrMask(Attribute::Alignment);
}
-void Attributes::Builder::removeUWTableAttr() {
- Bits &= ~Attribute::UWTable_i;
+
+uint64_t AttrBuilder::getAlignment() const {
+ if (!hasAlignmentAttr())
+ return 0;
+ return 1ULL <<
+ (((Bits & AttributeImpl::getAttrMask(Attribute::Alignment)) >> 16) - 1);
}
-void Attributes::Builder::removeZExtAttr() {
- Bits &= ~Attribute::ZExt_i;
+
+uint64_t AttrBuilder::getStackAlignment() const {
+ if (!hasAlignmentAttr())
+ return 0;
+ return 1ULL <<
+ (((Bits & AttributeImpl::getAttrMask(Attribute::StackAlignment))>>26)-1);
}
//===----------------------------------------------------------------------===//
// AttributeImpl Definition
//===----------------------------------------------------------------------===//
-bool AttributesImpl::hasAttribute(uint64_t A) const {
- return (Bits & A) != 0;
+AttributeImpl::AttributeImpl(LLVMContext &C, uint64_t data) {
+ Data = ConstantInt::get(Type::getInt64Ty(C), data);
}
-
-bool AttributesImpl::hasAttributes() const {
- return Bits != 0;
+AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind data) {
+ Data = ConstantInt::get(Type::getInt64Ty(C), data);
}
-
-bool AttributesImpl::hasAttributes(const Attributes &A) const {
- return Bits & A.Raw(); // FIXME: Raw() won't work here in the future.
+AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind data,
+ ArrayRef<Constant*> values) {
+ Data = ConstantInt::get(Type::getInt64Ty(C), data);
+ Vals.reserve(values.size());
+ Vals.append(values.begin(), values.end());
}
-
-uint64_t AttributesImpl::getAlignment() const {
- return Bits & Attribute::Alignment_i;
+AttributeImpl::AttributeImpl(LLVMContext &C, StringRef data) {
+ Data = ConstantDataArray::getString(C, data);
}
-uint64_t AttributesImpl::getStackAlignment() const {
- return Bits & Attribute::StackAlignment_i;
+bool AttributeImpl::contains(Attribute::AttrKind Kind) const {
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(Data))
+ return CI->getZExtValue() == Kind;
+ return false;
}
-bool AttributesImpl::isEmptyOrSingleton() const {
- return (Bits & (Bits - 1)) == 0;
+bool AttributeImpl::contains(StringRef Kind) const {
+ if (ConstantDataArray *CDA = dyn_cast<ConstantDataArray>(Data))
+ if (CDA->isString())
+ return CDA->getAsString() == Kind;
+ return false;
}
-//===----------------------------------------------------------------------===//
-// AttributeListImpl Definition
-//===----------------------------------------------------------------------===//
+uint64_t AttributeImpl::getBitMask() const {
+ // FIXME: Remove this.
+ return cast<ConstantInt>(Data)->getZExtValue();
+}
+
+uint64_t AttributeImpl::getAttrMask(uint64_t Val) {
+ switch (Val) {
+ case Attribute::None: return 0;
+ case Attribute::ZExt: return 1 << 0;
+ case Attribute::SExt: return 1 << 1;
+ case Attribute::NoReturn: return 1 << 2;
+ case Attribute::InReg: return 1 << 3;
+ case Attribute::StructRet: return 1 << 4;
+ case Attribute::NoUnwind: return 1 << 5;
+ case Attribute::NoAlias: return 1 << 6;
+ case Attribute::ByVal: return 1 << 7;
+ case Attribute::Nest: return 1 << 8;
+ case Attribute::ReadNone: return 1 << 9;
+ case Attribute::ReadOnly: return 1 << 10;
+ case Attribute::NoInline: return 1 << 11;
+ case Attribute::AlwaysInline: return 1 << 12;
+ case Attribute::OptimizeForSize: return 1 << 13;
+ case Attribute::StackProtect: return 1 << 14;
+ case Attribute::StackProtectReq: return 1 << 15;
+ case Attribute::Alignment: return 31 << 16;
+ case Attribute::NoCapture: return 1 << 21;
+ case Attribute::NoRedZone: return 1 << 22;
+ case Attribute::NoImplicitFloat: return 1 << 23;
+ case Attribute::Naked: return 1 << 24;
+ case Attribute::InlineHint: return 1 << 25;
+ case Attribute::StackAlignment: return 7 << 26;
+ 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::MinSize: return 1ULL << 33;
+ case Attribute::NoDuplicate: return 1ULL << 34;
+ }
+ llvm_unreachable("Unsupported attribute type");
+}
-namespace llvm {
- class AttributeListImpl;
+bool AttributeImpl::hasAttribute(uint64_t A) const {
+ return (getBitMask() & getAttrMask(A)) != 0;
}
-static ManagedStatic<FoldingSet<AttributeListImpl> > AttributesLists;
+bool AttributeImpl::hasAttributes() const {
+ return getBitMask() != 0;
+}
-namespace llvm {
-static ManagedStatic<sys::SmartMutex<true> > ALMutex;
+bool AttributeImpl::hasAttributes(const Attribute &A) const {
+ // FIXME: getBitMask() won't work here in the future.
+ return getBitMask() & A.getBitMask();
+}
-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;
- }
- void DropRef() {
- sys::SmartScopedLock<true> Lock(*ALMutex);
- if (!AttributesLists.isConstructed())
- return;
- sys::cas_flag new_val = --RefCount;
- if (new_val == 0)
- delete this;
- }
-
- void Profile(FoldingSetNodeID &ID) const {
- Profile(ID, Attrs);
- }
- static void Profile(FoldingSetNodeID &ID, ArrayRef<AttributeWithIndex> Attrs){
- for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
- ID.AddInteger(Attrs[i].Attrs.Raw());
- ID.AddInteger(Attrs[i].Index);
- }
- }
-};
+uint64_t AttributeImpl::getAlignment() const {
+ return getBitMask() & getAttrMask(Attribute::Alignment);
}
-AttributeListImpl::~AttributeListImpl() {
- // NOTE: Lock must be acquired by caller.
- AttributesLists->RemoveNode(this);
+uint64_t AttributeImpl::getStackAlignment() const {
+ return getBitMask() & getAttrMask(Attribute::StackAlignment);
}
+//===----------------------------------------------------------------------===//
+// AttributeSetImpl Definition
+//===----------------------------------------------------------------------===//
-AttrListPtr AttrListPtr::get(ArrayRef<AttributeWithIndex> Attrs) {
+AttributeSet AttributeSet::get(LLVMContext &C,
+ ArrayRef<AttributeWithIndex> Attrs) {
// If there are no attributes then return a null AttributesList pointer.
if (Attrs.empty())
- return AttrListPtr();
-
+ return AttributeSet();
+
#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.
+ LLVMContextImpl *pImpl = C.pImpl;
FoldingSetNodeID ID;
- AttributeListImpl::Profile(ID, Attrs);
- void *InsertPos;
-
- sys::SmartScopedLock<true> Lock(*ALMutex);
-
- AttributeListImpl *PAL =
- AttributesLists->FindNodeOrInsertPos(ID, InsertPos);
-
+ AttributeSetImpl::Profile(ID, Attrs);
+
+ void *InsertPoint;
+ AttributeSetImpl *PA = pImpl->AttrsLists.FindNodeOrInsertPos(ID,
+ InsertPoint);
+
// 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);
+ if (!PA) {
+ PA = new AttributeSetImpl(C, Attrs);
+ pImpl->AttrsLists.InsertNode(PA, InsertPoint);
}
-
+
// Return the AttributesList that we found or created.
- return AttrListPtr(PAL);
+ return AttributeSet(PA);
}
-
//===----------------------------------------------------------------------===//
-// AttrListPtr Method Implementations
+// AttributeSet Method Implementations
//===----------------------------------------------------------------------===//
-AttrListPtr::AttrListPtr(AttributeListImpl *LI) : AttrList(LI) {
- if (LI) LI->AddRef();
-}
-
-AttrListPtr::AttrListPtr(const AttrListPtr &P) : AttrList(P.AttrList) {
- if (AttrList) AttrList->AddRef();
-}
-
-const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
- sys::SmartScopedLock<true> Lock(*ALMutex);
- if (AttrList == RHS.AttrList) return *this;
- if (AttrList) AttrList->DropRef();
+const AttributeSet &AttributeSet::operator=(const AttributeSet &RHS) {
AttrList = RHS.AttrList;
- if (AttrList) AttrList->AddRef();
return *this;
}
-AttrListPtr::~AttrListPtr() {
- 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 {
+unsigned AttributeSet::getNumSlots() const {
return AttrList ? AttrList->Attrs.size() : 0;
}
/// getSlot - Return the AttributeWithIndex at the specified slot. This
/// holds a number plus a set of attributes.
-const AttributeWithIndex &AttrListPtr::getSlot(unsigned Slot) const {
+const AttributeWithIndex &AttributeSet::getSlot(unsigned Slot) const {
assert(AttrList && Slot < AttrList->Attrs.size() && "Slot # out of range!");
return AttrList->Attrs[Slot];
}
+bool AttributeSet::hasAttribute(unsigned Index, Attribute::AttrKind Kind) const{
+ return getAttributes(Index).hasAttribute(Kind);
+}
+
+bool AttributeSet::hasAttributes(unsigned Index) const {
+ return getAttributes(Index).hasAttributes();
+}
+
+std::string AttributeSet::getAsString(unsigned Index) const {
+ return getAttributes(Index).getAsString();
+}
+
+unsigned AttributeSet::getStackAlignment(unsigned Index) const {
+ return getAttributes(Index).getStackAlignment();
+}
+
+uint64_t AttributeSet::getBitMask(unsigned Index) const {
+ // FIXME: Remove this.
+ return getAttributes(Index).getBitMask();
+}
+
+/// getAttributes - The attributes for the specified index are returned.
+/// Attribute for the result are denoted with Idx = 0. Function notes are
+/// denoted with idx = ~0.
+Attribute AttributeSet::getAttributes(unsigned Idx) const {
+ if (AttrList == 0) return Attribute();
-/// 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)
return Attrs[i].Attrs;
- return Attributes();
+ return Attribute();
}
/// 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 AttributeSet::hasAttrSomewhere(Attribute::AttrKind 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;
}
+unsigned AttributeSet::getNumAttrs() const {
+ return AttrList ? AttrList->Attrs.size() : 0;
+}
-AttrListPtr AttrListPtr::addAttr(unsigned Idx, Attributes Attrs) const {
- Attributes OldAttrs = getAttributes(Idx);
+Attribute &AttributeSet::getAttributesAtIndex(unsigned i) const {
+ assert(AttrList && "Trying to get an attribute from an empty list!");
+ assert(i < AttrList->Attrs.size() && "Index out of range!");
+ return AttrList->Attrs[i].Attrs;
+}
+
+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.
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 =
+ Attribute::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);
+
+ return get(C, NewAttrList);
}
-AttrListPtr AttrListPtr::removeAttr(unsigned Idx, Attributes Attrs) const {
+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.hasAlignmentAttr() && "Attempt to exclude alignment!");
+ assert(!Attrs.hasAttribute(Attribute::Alignment) &&
+ "Attempt to exclude alignment!");
#endif
- if (AttrList == 0) return AttrListPtr();
-
- Attributes OldAttrs = getAttributes(Idx);
- Attributes NewAttrs = OldAttrs & ~Attrs;
- if (NewAttrs == OldAttrs)
+ if (AttrList == 0) return AttributeSet();
+
+ Attribute OldAttrs = getAttributes(Idx);
+ 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 = Attribute::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);
+
+ return get(C, NewAttrList);
}
-void AttrListPtr::dump() const {
+void AttributeSet::dump() const {
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