-//===-- Attributes.cpp - Implement AttributesList -------------------------===//
+//===-- Attribute.cpp - Implement AttributesList -------------------------===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// This file implements the Attributes, AttributeImpl, AttrBuilder,
+// This file implements the Attribute, AttributeImpl, AttrBuilder,
// AttributeListImpl, and AttributeSet classes.
//
//===----------------------------------------------------------------------===//
using namespace llvm;
//===----------------------------------------------------------------------===//
-// Attributes Implementation
+// Attribute Implementation
//===----------------------------------------------------------------------===//
-Attribute
s Attributes::get(LLVMContext &Context, ArrayRef<AttrVal> Vals) {
+Attribute
Attribute::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);
+ return Attribute::get(Context, B);
}
-Attributes Attributes::get(LLVMContext &Context, AttrBuilder &B) {
- // If there are no attributes, return an empty Attributes class.
+Attribute Attribute::get(LLVMContext &Context, AttrBuilder &B) {
+ // If there are no attributes, return an empty Attribute class.
if (!B.hasAttributes())
- return Attributes();
+ return Attribute();
// Otherwise, build a key to look up the existing attributes.
LLVMContextImpl *pImpl = Context.pImpl;
}
// Return the AttributesList that we found or created.
- return Attributes(PA);
+ return Attribute(PA);
}
-bool Attributes::hasAttribute(AttrVal Val) const {
+bool Attribute::hasAttribute(AttrVal Val) const {
return Attrs && Attrs->hasAttribute(Val);
}
-bool Attributes::hasAttributes() const {
+bool Attribute::hasAttributes() const {
return Attrs && Attrs->hasAttributes();
}
-bool Attributes::hasAttributes(const Attributes &A) const {
+bool Attribute::hasAttributes(const Attribute &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 (!hasAttribute(Attributes::Alignment))
+unsigned Attribute::getAlignment() const {
+ if (!hasAttribute(Attribute::Alignment))
return 0;
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 (!hasAttribute(Attributes::StackAlignment))
+unsigned Attribute::getStackAlignment() const {
+ if (!hasAttribute(Attribute::StackAlignment))
return 0;
return 1U << ((Attrs->getStackAlignment() >> 26) - 1);
}
-uint64_t Attributes::Raw() const {
+uint64_t Attribute::Raw() const {
return Attrs ? Attrs->Raw() : 0;
}
-Attributes Attributes::typeIncompatible(Type *Ty) {
+Attribute Attribute::typeIncompatible(Type *Ty) {
AttrBuilder Incompatible;
if (!Ty->isIntegerTy())
- // Attributes that only apply to integers.
- Incompatible.addAttribute(Attributes::SExt)
- .addAttribute(Attributes::ZExt);
+ // Attribute that only apply to integers.
+ Incompatible.addAttribute(Attribute::SExt)
+ .addAttribute(Attribute::ZExt);
if (!Ty->isPointerTy())
- // Attributes that only apply to pointers.
- Incompatible.addAttribute(Attributes::ByVal)
- .addAttribute(Attributes::Nest)
- .addAttribute(Attributes::NoAlias)
- .addAttribute(Attributes::NoCapture)
- .addAttribute(Attributes::StructRet);
+ // Attribute that only apply to pointers.
+ Incompatible.addAttribute(Attribute::ByVal)
+ .addAttribute(Attribute::Nest)
+ .addAttribute(Attribute::NoAlias)
+ .addAttribute(Attribute::NoCapture)
+ .addAttribute(Attribute::StructRet);
- return Attributes::get(Ty->getContext(), Incompatible);
+ 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 Attributes::encodeLLVMAttributesForBitcode(Attributes Attrs) {
+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
// 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))
+ if (Attrs.hasAttribute(Attribute::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,
+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.
if (Alignment)
B.addAlignmentAttr(Alignment);
B.addRawValue((EncodedAttrs & (0xffffULL << 32)) >> 11);
- return Attributes::get(C, B);
+ return Attribute::get(C, B);
}
-std::string Attributes::getAsString() const {
+std::string Attribute::getAsString() const {
std::string Result;
- if (hasAttribute(Attributes::ZExt))
+ if (hasAttribute(Attribute::ZExt))
Result += "zeroext ";
- if (hasAttribute(Attributes::SExt))
+ if (hasAttribute(Attribute::SExt))
Result += "signext ";
- if (hasAttribute(Attributes::NoReturn))
+ if (hasAttribute(Attribute::NoReturn))
Result += "noreturn ";
- if (hasAttribute(Attributes::NoUnwind))
+ if (hasAttribute(Attribute::NoUnwind))
Result += "nounwind ";
- if (hasAttribute(Attributes::UWTable))
+ if (hasAttribute(Attribute::UWTable))
Result += "uwtable ";
- if (hasAttribute(Attributes::ReturnsTwice))
+ if (hasAttribute(Attribute::ReturnsTwice))
Result += "returns_twice ";
- if (hasAttribute(Attributes::InReg))
+ if (hasAttribute(Attribute::InReg))
Result += "inreg ";
- if (hasAttribute(Attributes::NoAlias))
+ if (hasAttribute(Attribute::NoAlias))
Result += "noalias ";
- if (hasAttribute(Attributes::NoCapture))
+ if (hasAttribute(Attribute::NoCapture))
Result += "nocapture ";
- if (hasAttribute(Attributes::StructRet))
+ if (hasAttribute(Attribute::StructRet))
Result += "sret ";
- if (hasAttribute(Attributes::ByVal))
+ if (hasAttribute(Attribute::ByVal))
Result += "byval ";
- if (hasAttribute(Attributes::Nest))
+ if (hasAttribute(Attribute::Nest))
Result += "nest ";
- if (hasAttribute(Attributes::ReadNone))
+ if (hasAttribute(Attribute::ReadNone))
Result += "readnone ";
- if (hasAttribute(Attributes::ReadOnly))
+ if (hasAttribute(Attribute::ReadOnly))
Result += "readonly ";
- if (hasAttribute(Attributes::OptimizeForSize))
+ if (hasAttribute(Attribute::OptimizeForSize))
Result += "optsize ";
- if (hasAttribute(Attributes::NoInline))
+ if (hasAttribute(Attribute::NoInline))
Result += "noinline ";
- if (hasAttribute(Attributes::InlineHint))
+ if (hasAttribute(Attribute::InlineHint))
Result += "inlinehint ";
- if (hasAttribute(Attributes::AlwaysInline))
+ if (hasAttribute(Attribute::AlwaysInline))
Result += "alwaysinline ";
- if (hasAttribute(Attributes::StackProtect))
+ if (hasAttribute(Attribute::StackProtect))
Result += "ssp ";
- if (hasAttribute(Attributes::StackProtectReq))
+ if (hasAttribute(Attribute::StackProtectReq))
Result += "sspreq ";
- if (hasAttribute(Attributes::NoRedZone))
+ if (hasAttribute(Attribute::NoRedZone))
Result += "noredzone ";
- if (hasAttribute(Attributes::NoImplicitFloat))
+ if (hasAttribute(Attribute::NoImplicitFloat))
Result += "noimplicitfloat ";
- if (hasAttribute(Attributes::Naked))
+ if (hasAttribute(Attribute::Naked))
Result += "naked ";
- if (hasAttribute(Attributes::NonLazyBind))
+ if (hasAttribute(Attribute::NonLazyBind))
Result += "nonlazybind ";
- if (hasAttribute(Attributes::AddressSafety))
+ if (hasAttribute(Attribute::AddressSafety))
Result += "address_safety ";
- if (hasAttribute(Attributes::MinSize))
+ if (hasAttribute(Attribute::MinSize))
Result += "minsize ";
- if (hasAttribute(Attributes::StackAlignment)) {
+ if (hasAttribute(Attribute::StackAlignment)) {
Result += "alignstack(";
Result += utostr(getStackAlignment());
Result += ") ";
}
- if (hasAttribute(Attributes::Alignment)) {
+ if (hasAttribute(Attribute::Alignment)) {
Result += "align ";
Result += utostr(getAlignment());
Result += " ";
// AttrBuilder Implementation
//===----------------------------------------------------------------------===//
-AttrBuilder &AttrBuilder::addAttribute(Attributes::AttrVal Val){
+AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrVal Val){
Bits |= AttributesImpl::getAttrMask(Val);
return *this;
}
return *this;
}
-AttrBuilder &AttrBuilder::removeAttribute(Attributes::AttrVal Val) {
+AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrVal Val) {
Bits &= ~AttributesImpl::getAttrMask(Val);
return *this;
}
-AttrBuilder &AttrBuilder::addAttributes(const Attributes &A) {
+AttrBuilder &AttrBuilder::addAttributes(const Attribute &A) {
Bits |= A.Raw();
return *this;
}
-AttrBuilder &AttrBuilder::removeAttributes(const Attributes &A){
+AttrBuilder &AttrBuilder::removeAttributes(const Attribute &A){
Bits &= ~A.Raw();
return *this;
}
-bool AttrBuilder::hasAttribute(Attributes::AttrVal A) const {
+bool AttrBuilder::hasAttribute(Attribute::AttrVal A) const {
return Bits & AttributesImpl::getAttrMask(A);
}
bool AttrBuilder::hasAttributes() const {
return Bits != 0;
}
-bool AttrBuilder::hasAttributes(const Attributes &A) const {
+bool AttrBuilder::hasAttributes(const Attribute &A) const {
return Bits & A.Raw();
}
bool AttrBuilder::hasAlignmentAttr() const {
- return Bits & AttributesImpl::getAttrMask(Attributes::Alignment);
+ return Bits & AttributesImpl::getAttrMask(Attribute::Alignment);
}
uint64_t AttrBuilder::getAlignment() const {
if (!hasAlignmentAttr())
return 0;
return 1ULL <<
- (((Bits & AttributesImpl::getAttrMask(Attributes::Alignment)) >> 16) - 1);
+ (((Bits & AttributesImpl::getAttrMask(Attribute::Alignment)) >> 16) - 1);
}
uint64_t AttrBuilder::getStackAlignment() const {
if (!hasAlignmentAttr())
return 0;
return 1ULL <<
- (((Bits & AttributesImpl::getAttrMask(Attributes::StackAlignment))>>26)-1);
+ (((Bits & AttributesImpl::getAttrMask(Attribute::StackAlignment))>>26)-1);
}
//===----------------------------------------------------------------------===//
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::MinSize: return 1ULL << 33;
+ 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;
}
llvm_unreachable("Unsupported attribute type");
}
return Bits != 0;
}
-bool AttributesImpl::hasAttributes(const Attributes &A) const {
+bool AttributesImpl::hasAttributes(const Attribute &A) const {
return Bits & A.Raw(); // FIXME: Raw() won't work here in the future.
}
uint64_t AttributesImpl::getAlignment() const {
- return Bits & getAttrMask(Attributes::Alignment);
+ return Bits & getAttrMask(Attribute::Alignment);
}
uint64_t AttributesImpl::getStackAlignment() const {
- return Bits & getAttrMask(Attributes::StackAlignment);
+ return Bits & getAttrMask(Attribute::StackAlignment);
}
//===----------------------------------------------------------------------===//
}
/// getAttributes - The attributes for the specified index are returned.
-/// Attributes for the result are denoted with Idx = 0. Function notes are
+/// Attribute for the result are denoted with Idx = 0. Function notes are
/// denoted with idx = ~0.
-Attributes AttributeSet::getAttributes(unsigned Idx) const {
- if (AttrList == 0) return Attributes();
+Attribute AttributeSet::getAttributes(unsigned Idx) const {
+ if (AttrList == 0) return Attribute();
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 AttributeSet::hasAttrSomewhere(Attributes::AttrVal Attr) const {
+bool AttributeSet::hasAttrSomewhere(Attribute::AttrVal Attr) const {
if (AttrList == 0) return false;
const SmallVector<AttributeWithIndex, 4> &Attrs = AttrList->Attrs;
return AttrList ? AttrList->Attrs.size() : 0;
}
-Attributes &AttributeSet::getAttributesAtIndex(unsigned i) const {
+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,
- Attributes Attrs) const {
- Attributes OldAttrs = getAttributes(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.
// If there are attributes already at this index, merge them in.
if (i != e && OldAttrList[i].Index == Idx) {
Attrs =
- Attributes::get(C, AttrBuilder(Attrs).
+ Attribute::get(C, AttrBuilder(Attrs).
addAttributes(OldAttrList[i].Attrs));
++i;
}
}
AttributeSet AttributeSet::removeAttr(LLVMContext &C, unsigned Idx,
- Attributes Attrs) const {
+ 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(Attributes::Alignment) &&
+ assert(!Attrs.hasAttribute(Attribute::Alignment) &&
"Attempt to exclude alignment!");
#endif
if (AttrList == 0) return AttributeSet();
- Attributes OldAttrs = getAttributes(Idx);
+ Attribute OldAttrs = getAttributes(Idx);
AttrBuilder NewAttrs =
AttrBuilder(OldAttrs).removeAttributes(Attrs);
if (NewAttrs == AttrBuilder(OldAttrs))
// If there are attributes already at this index, merge them in.
assert(OldAttrList[i].Index == Idx && "Attribute isn't set?");
- Attrs = Attributes::get(C, AttrBuilder(OldAttrList[i].Attrs).
+ Attrs = Attribute::get(C, AttrBuilder(OldAttrList[i].Attrs).
removeAttributes(Attrs));
++i;
if (Attrs.hasAttributes()) // If any attributes left for this param, add them.
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