mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-08 21:32:39 +00:00
87e10dfefa
The AttributeWithIndex class exposed the interior structure of the AttributeSet class. That was gross. Remove it and all of the code that relied upon it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173722 91177308-0d34-0410-b5e6-96231b3b80d8
945 lines
30 KiB
C++
945 lines
30 KiB
C++
//===-- Attributes.cpp - Implement AttributesList -------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// \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"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Support/Mutex.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <algorithm>
|
|
using namespace llvm;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Attribute Implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Attribute Attribute::get(LLVMContext &Context, ArrayRef<AttrKind> Kinds) {
|
|
AttrBuilder B;
|
|
for (ArrayRef<AttrKind>::iterator I = Kinds.begin(), E = Kinds.end();
|
|
I != E; ++I)
|
|
B.addAttribute(*I);
|
|
return Attribute::get(Context, B);
|
|
}
|
|
|
|
Attribute Attribute::get(LLVMContext &Context, AttrBuilder &B) {
|
|
// If there are no attributes, return an empty Attribute class.
|
|
if (!B.hasAttributes())
|
|
return Attribute();
|
|
|
|
// Otherwise, build a key to look up the existing attributes.
|
|
LLVMContextImpl *pImpl = Context.pImpl;
|
|
FoldingSetNodeID ID;
|
|
ID.AddInteger(B.Raw());
|
|
|
|
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());
|
|
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
|
|
}
|
|
|
|
// Return the AttributesList that we found or created.
|
|
return Attribute(PA);
|
|
}
|
|
|
|
Attribute Attribute::getWithAlignment(LLVMContext &Context, uint64_t Align) {
|
|
AttrBuilder B;
|
|
return get(Context, B.addAlignmentAttr(Align));
|
|
}
|
|
|
|
Attribute Attribute::getWithStackAlignment(LLVMContext &Context,
|
|
uint64_t Align) {
|
|
AttrBuilder B;
|
|
return get(Context, B.addStackAlignmentAttr(Align));
|
|
}
|
|
|
|
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();
|
|
}
|
|
|
|
/// 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();
|
|
}
|
|
|
|
bool Attribute::operator==(AttrKind K) const {
|
|
return pImpl && *pImpl == K;
|
|
}
|
|
bool Attribute::operator!=(AttrKind K) const {
|
|
return !(*this == K);
|
|
}
|
|
|
|
bool Attribute::operator<(Attribute A) const {
|
|
if (!pImpl && !A.pImpl) return false;
|
|
if (!pImpl) return true;
|
|
if (!A.pImpl) return false;
|
|
return *pImpl < *A.pImpl;
|
|
}
|
|
|
|
uint64_t Attribute::Raw() const {
|
|
return pImpl ? pImpl->Raw() : 0;
|
|
}
|
|
|
|
std::string Attribute::getAsString() const {
|
|
std::string Result;
|
|
if (hasAttribute(Attribute::ZExt))
|
|
Result += "zeroext ";
|
|
if (hasAttribute(Attribute::SExt))
|
|
Result += "signext ";
|
|
if (hasAttribute(Attribute::NoReturn))
|
|
Result += "noreturn ";
|
|
if (hasAttribute(Attribute::NoUnwind))
|
|
Result += "nounwind ";
|
|
if (hasAttribute(Attribute::UWTable))
|
|
Result += "uwtable ";
|
|
if (hasAttribute(Attribute::ReturnsTwice))
|
|
Result += "returns_twice ";
|
|
if (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;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttrBuilder Method Implementations
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttrBuilder::AttrBuilder(AttributeSet AS, unsigned Idx)
|
|
: Alignment(0), StackAlignment(0) {
|
|
AttributeSetImpl *pImpl = AS.pImpl;
|
|
if (!pImpl) return;
|
|
|
|
AttrBuilder B;
|
|
|
|
for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
|
|
if (pImpl->getSlotIndex(I) != Idx) continue;
|
|
|
|
for (AttributeSetNode::const_iterator II = pImpl->begin(I),
|
|
IE = pImpl->end(I); II != IE; ++II)
|
|
B.addAttributes(*II);
|
|
|
|
break;
|
|
}
|
|
|
|
if (!B.hasAttributes()) return;
|
|
|
|
uint64_t Mask = B.Raw();
|
|
|
|
for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
|
|
I = Attribute::AttrKind(I + 1)) {
|
|
if (uint64_t A = (Mask & AttributeImpl::getAttrMask(I))) {
|
|
Attrs.insert(I);
|
|
|
|
if (I == Attribute::Alignment)
|
|
Alignment = 1ULL << ((A >> 16) - 1);
|
|
else if (I == Attribute::StackAlignment)
|
|
StackAlignment = 1ULL << ((A >> 26)-1);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AttrBuilder::clear() {
|
|
Attrs.clear();
|
|
Alignment = StackAlignment = 0;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Val) {
|
|
Attrs.insert(Val);
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
|
|
Attrs.erase(Val);
|
|
if (Val == Attribute::Alignment)
|
|
Alignment = 0;
|
|
else if (Val == Attribute::StackAlignment)
|
|
StackAlignment = 0;
|
|
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAttributes(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;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::removeAttributes(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;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAlignmentAttr(unsigned Align) {
|
|
if (Align == 0) return *this;
|
|
|
|
assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
|
|
assert(Align <= 0x40000000 && "Alignment too large.");
|
|
|
|
Attrs.insert(Attribute::Alignment);
|
|
Alignment = Align;
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align) {
|
|
// Default alignment, allow the target to define how to align it.
|
|
if (Align == 0) return *this;
|
|
|
|
assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
|
|
assert(Align <= 0x100 && "Alignment too large.");
|
|
|
|
Attrs.insert(Attribute::StackAlignment);
|
|
StackAlignment = Align;
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
|
|
for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
|
|
I = Attribute::AttrKind(I + 1)) {
|
|
if (uint64_t A = (Val & AttributeImpl::getAttrMask(I))) {
|
|
Attrs.insert(I);
|
|
|
|
if (I == Attribute::Alignment)
|
|
Alignment = 1ULL << ((A >> 16) - 1);
|
|
else if (I == Attribute::StackAlignment)
|
|
StackAlignment = 1ULL << ((A >> 26)-1);
|
|
}
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool AttrBuilder::contains(Attribute::AttrKind A) const {
|
|
return Attrs.count(A);
|
|
}
|
|
|
|
bool AttrBuilder::hasAttributes() const {
|
|
return !Attrs.empty();
|
|
}
|
|
|
|
bool AttrBuilder::hasAttributes(const Attribute &A) const {
|
|
return Raw() & A.Raw();
|
|
}
|
|
|
|
bool AttrBuilder::hasAlignmentAttr() const {
|
|
return Alignment != 0;
|
|
}
|
|
|
|
uint64_t AttrBuilder::Raw() const {
|
|
uint64_t Mask = 0;
|
|
|
|
for (DenseSet<Attribute::AttrKind>::const_iterator I = Attrs.begin(),
|
|
E = Attrs.end(); I != E; ++I) {
|
|
Attribute::AttrKind Kind = *I;
|
|
|
|
if (Kind == Attribute::Alignment)
|
|
Mask |= (Log2_32(Alignment) + 1) << 16;
|
|
else if (Kind == Attribute::StackAlignment)
|
|
Mask |= (Log2_32(StackAlignment) + 1) << 26;
|
|
else
|
|
Mask |= AttributeImpl::getAttrMask(Kind);
|
|
}
|
|
|
|
return Mask;
|
|
}
|
|
|
|
bool 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;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// 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(LLVMContext &C, StringRef data)
|
|
: Context(C) {
|
|
Data = ConstantDataArray::getString(C, data);
|
|
}
|
|
|
|
bool AttributeImpl::operator==(Attribute::AttrKind Kind) const {
|
|
if (ConstantInt *CI = dyn_cast<ConstantInt>(Data))
|
|
return CI->getZExtValue() == Kind;
|
|
return false;
|
|
}
|
|
bool AttributeImpl::operator!=(Attribute::AttrKind Kind) const {
|
|
return !(*this == Kind);
|
|
}
|
|
|
|
bool AttributeImpl::operator==(StringRef Kind) const {
|
|
if (ConstantDataArray *CDA = dyn_cast<ConstantDataArray>(Data))
|
|
if (CDA->isString())
|
|
return CDA->getAsString() == Kind;
|
|
return false;
|
|
}
|
|
|
|
bool AttributeImpl::operator!=(StringRef Kind) const {
|
|
return !(*this == Kind);
|
|
}
|
|
|
|
bool AttributeImpl::operator<(const AttributeImpl &AI) const {
|
|
if (!Data && !AI.Data) return false;
|
|
if (!Data && AI.Data) return true;
|
|
if (Data && !AI.Data) return false;
|
|
|
|
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;
|
|
|
|
return ThisCDA->getAsString() < ThatCDA->getAsString();
|
|
}
|
|
|
|
uint64_t AttributeImpl::Raw() const {
|
|
// FIXME: Remove this.
|
|
return cast<ConstantInt>(Data)->getZExtValue();
|
|
}
|
|
|
|
uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) {
|
|
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::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;
|
|
case Attribute::StackProtectStrong: return 1ULL << 35;
|
|
}
|
|
llvm_unreachable("Unsupported attribute type");
|
|
}
|
|
|
|
bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
|
|
return (Raw() & getAttrMask(A)) != 0;
|
|
}
|
|
|
|
bool AttributeImpl::hasAttributes() const {
|
|
return Raw() != 0;
|
|
}
|
|
|
|
uint64_t AttributeImpl::getAlignment() const {
|
|
uint64_t Mask = Raw() & getAttrMask(Attribute::Alignment);
|
|
return 1ULL << ((Mask >> 16) - 1);
|
|
}
|
|
|
|
uint64_t AttributeImpl::getStackAlignment() const {
|
|
uint64_t Mask = Raw() & getAttrMask(Attribute::StackAlignment);
|
|
return 1ULL << ((Mask >> 26) - 1);
|
|
}
|
|
|
|
void AttributeImpl::Profile(FoldingSetNodeID &ID, Constant *Data,
|
|
ArrayRef<Constant*> Vals) {
|
|
ID.AddInteger(cast<ConstantInt>(Data)->getZExtValue());
|
|
#if 0
|
|
// FIXME: Not yet supported.
|
|
for (ArrayRef<Constant*>::iterator I = Vals.begin(), E = Vals.end();
|
|
I != E; ++I)
|
|
ID.AddPointer(*I);
|
|
#endif
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeSetNode Definition
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttributeSetNode *AttributeSetNode::get(LLVMContext &C,
|
|
ArrayRef<Attribute> Attrs) {
|
|
if (Attrs.empty())
|
|
return 0;
|
|
|
|
// Otherwise, build a key to look up the existing attributes.
|
|
LLVMContextImpl *pImpl = C.pImpl;
|
|
FoldingSetNodeID ID;
|
|
|
|
SmallVector<Attribute, 8> SortedAttrs(Attrs.begin(), Attrs.end());
|
|
std::sort(SortedAttrs.begin(), SortedAttrs.end());
|
|
|
|
for (SmallVectorImpl<Attribute>::iterator I = SortedAttrs.begin(),
|
|
E = SortedAttrs.end(); I != E; ++I)
|
|
I->Profile(ID);
|
|
|
|
void *InsertPoint;
|
|
AttributeSetNode *PA =
|
|
pImpl->AttrsSetNodes.FindNodeOrInsertPos(ID, InsertPoint);
|
|
|
|
// 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);
|
|
pImpl->AttrsSetNodes.InsertNode(PA, InsertPoint);
|
|
}
|
|
|
|
// Return the AttributesListNode that we found or created.
|
|
return PA;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeSetImpl Definition
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
uint64_t AttributeSetImpl::Raw(uint64_t Index) const {
|
|
for (unsigned I = 0, E = getNumAttributes(); I != E; ++I) {
|
|
if (getSlotIndex(I) != Index) continue;
|
|
const AttributeSetNode *ASN = AttrNodes[I].second;
|
|
AttrBuilder B;
|
|
|
|
for (AttributeSetNode::const_iterator II = ASN->begin(),
|
|
IE = ASN->end(); II != IE; ++II)
|
|
B.addAttributes(*II);
|
|
return B.Raw();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeSet Method Implementations
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttributeSet AttributeSet::getParamAttributes(unsigned Idx) const {
|
|
// FIXME: Remove.
|
|
return pImpl && hasAttributes(Idx) ?
|
|
AttributeSet::get(pImpl->getContext(),
|
|
ArrayRef<std::pair<uint64_t, Attribute> >(
|
|
std::make_pair(Idx, getAttributes(Idx)))) :
|
|
AttributeSet();
|
|
}
|
|
|
|
AttributeSet AttributeSet::getRetAttributes() const {
|
|
// FIXME: Remove.
|
|
return pImpl && hasAttributes(ReturnIndex) ?
|
|
AttributeSet::get(pImpl->getContext(),
|
|
ArrayRef<std::pair<uint64_t, Attribute> >(
|
|
std::make_pair(ReturnIndex,
|
|
getAttributes(ReturnIndex)))) :
|
|
AttributeSet();
|
|
}
|
|
|
|
AttributeSet AttributeSet::getFnAttributes() const {
|
|
// FIXME: Remove.
|
|
return pImpl && hasAttributes(FunctionIndex) ?
|
|
AttributeSet::get(pImpl->getContext(),
|
|
ArrayRef<std::pair<uint64_t, Attribute> >(
|
|
std::make_pair(FunctionIndex,
|
|
getAttributes(FunctionIndex)))) :
|
|
AttributeSet();
|
|
}
|
|
|
|
AttributeSet AttributeSet::getImpl(LLVMContext &C,
|
|
ArrayRef<std::pair<uint64_t,
|
|
AttributeSetNode*> > Attrs) {
|
|
LLVMContextImpl *pImpl = C.pImpl;
|
|
FoldingSetNodeID ID;
|
|
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 (!PA) {
|
|
PA = new AttributeSetImpl(C, Attrs);
|
|
pImpl->AttrsLists.InsertNode(PA, InsertPoint);
|
|
}
|
|
|
|
// Return the AttributesList that we found or created.
|
|
return AttributeSet(PA);
|
|
}
|
|
|
|
AttributeSet AttributeSet::get(LLVMContext &C,
|
|
ArrayRef<std::pair<uint64_t, 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.hasAttributes() &&
|
|
"Pointless attribute!");
|
|
}
|
|
#endif
|
|
|
|
// Create a vector if (uint64_t, AttributeSetNode*) pairs from the attributes
|
|
// list.
|
|
SmallVector<std::pair<uint64_t, AttributeSetNode*>, 8> AttrPairVec;
|
|
for (ArrayRef<std::pair<uint64_t, Attribute> >::iterator I = Attrs.begin(),
|
|
E = Attrs.end(); I != E; ) {
|
|
uint64_t Index = I->first;
|
|
SmallVector<Attribute, 4> AttrVec;
|
|
while (I->first == Index && I != E) {
|
|
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<uint64_t,
|
|
AttributeSetNode*> > Attrs) {
|
|
// If there are no attributes then return a null AttributesList pointer.
|
|
if (Attrs.empty())
|
|
return AttributeSet();
|
|
|
|
return getImpl(C, Attrs);
|
|
}
|
|
|
|
AttributeSet AttributeSet::get(LLVMContext &C, unsigned Idx, AttrBuilder &B) {
|
|
if (!B.hasAttributes())
|
|
return AttributeSet();
|
|
return get(C, ArrayRef<std::pair<uint64_t, Attribute> >(
|
|
std::make_pair(Idx, Attribute::get(C, B))));
|
|
}
|
|
|
|
AttributeSet AttributeSet::get(LLVMContext &C, unsigned Idx,
|
|
ArrayRef<Attribute::AttrKind> Kind) {
|
|
SmallVector<std::pair<uint64_t, Attribute>, 8> Attrs;
|
|
for (ArrayRef<Attribute::AttrKind>::iterator I = Kind.begin(),
|
|
E = Kind.end(); I != E; ++I)
|
|
Attrs.push_back(std::make_pair(Idx, Attribute::get(C, *I)));
|
|
return get(C, Attrs);
|
|
}
|
|
|
|
AttributeSet AttributeSet::get(LLVMContext &C, ArrayRef<AttributeSet> Attrs) {
|
|
SmallVector<std::pair<uint64_t, AttributeSetNode*>, 8> AttrNodeVec;
|
|
for (unsigned I = 0, E = Attrs.size(); I != E; ++I) {
|
|
AttributeSet AS = Attrs[I];
|
|
if (!AS.pImpl) continue;
|
|
AttrNodeVec.append(AS.pImpl->AttrNodes.begin(), AS.pImpl->AttrNodes.end());
|
|
}
|
|
|
|
return get(C, AttrNodeVec);
|
|
}
|
|
|
|
/// \brief Return the number of slots used in this attribute list. This is the
|
|
/// number of arguments that have an attribute set on them (including the
|
|
/// function itself).
|
|
unsigned AttributeSet::getNumSlots() const {
|
|
return pImpl ? pImpl->getNumAttributes() : 0;
|
|
}
|
|
|
|
uint64_t 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);
|
|
}
|
|
|
|
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::getParamAlignment(unsigned Idx) const {
|
|
return getAttributes(Idx).getAlignment();
|
|
}
|
|
|
|
unsigned AttributeSet::getStackAlignment(unsigned Index) const {
|
|
return getAttributes(Index).getStackAlignment();
|
|
}
|
|
|
|
uint64_t AttributeSet::Raw(unsigned Index) const {
|
|
// FIXME: Remove this.
|
|
return pImpl ? pImpl->Raw(Index) : 0;
|
|
}
|
|
|
|
/// \brief The attributes for the specified index are returned.
|
|
///
|
|
/// FIXME: This shouldn't return 'Attribute'.
|
|
Attribute AttributeSet::getAttributes(unsigned Idx) const {
|
|
if (pImpl == 0) return Attribute();
|
|
|
|
// Loop through to find the attribute we want.
|
|
for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
|
|
if (pImpl->getSlotIndex(I) != Idx) continue;
|
|
|
|
AttrBuilder B;
|
|
for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
|
|
IE = pImpl->end(I); II != IE; ++II)
|
|
B.addAttributes(*II);
|
|
return Attribute::get(pImpl->getContext(), B);
|
|
}
|
|
|
|
return Attribute();
|
|
}
|
|
|
|
/// 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 (pImpl == 0) return false;
|
|
|
|
for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I)
|
|
for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
|
|
IE = pImpl->end(I); II != IE; ++II)
|
|
if (II->hasAttribute(Attr))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Idx,
|
|
Attribute::AttrKind Attr) const {
|
|
return addAttributes(C, Idx, AttributeSet::get(C, Idx, Attr));
|
|
}
|
|
|
|
AttributeSet AttributeSet::addAttributes(LLVMContext &C, unsigned Idx,
|
|
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(Idx);
|
|
unsigned NewAlign = Attrs.getParamAlignment(Idx);
|
|
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) >= Idx) {
|
|
if (getSlotIndex(I) == Idx) AS = getSlotAttributes(LastIndex++);
|
|
break;
|
|
}
|
|
LastIndex = I + 1;
|
|
AttrSet.push_back(getSlotAttributes(I));
|
|
}
|
|
|
|
// Now add the attribute into the correct slot. There may already be an
|
|
// AttributeSet there.
|
|
AttrBuilder B(AS, Idx);
|
|
|
|
for (unsigned I = 0, E = Attrs.pImpl->getNumAttributes(); I != E; ++I)
|
|
if (Attrs.getSlotIndex(I) == Idx) {
|
|
for (AttributeSetImpl::const_iterator II = Attrs.pImpl->begin(I),
|
|
IE = Attrs.pImpl->end(I); II != IE; ++II)
|
|
B.addAttributes(*II);
|
|
break;
|
|
}
|
|
|
|
AttrSet.push_back(AttributeSet::get(C, Idx, B));
|
|
|
|
// Add the remaining attribute slots.
|
|
for (unsigned I = LastIndex, E = NumAttrs; I < E; ++I)
|
|
AttrSet.push_back(getSlotAttributes(I));
|
|
|
|
return get(C, AttrSet);
|
|
}
|
|
|
|
AttributeSet AttributeSet::removeAttribute(LLVMContext &C, unsigned Idx,
|
|
Attribute::AttrKind Attr) const {
|
|
return removeAttributes(C, Idx, AttributeSet::get(C, Idx, Attr));
|
|
}
|
|
|
|
AttributeSet AttributeSet::removeAttributes(LLVMContext &C, unsigned Idx,
|
|
AttributeSet Attrs) const {
|
|
if (!pImpl) return AttributeSet();
|
|
if (!Attrs.pImpl) return *this;
|
|
|
|
#ifndef NDEBUG
|
|
// FIXME it is not obvious how this should work for alignment.
|
|
// For now, say we can't pass in alignment, which no current use does.
|
|
assert(!Attrs.hasAttribute(Idx, Attribute::Alignment) &&
|
|
"Attempt to change alignment!");
|
|
#endif
|
|
|
|
// Add the attribute slots before the one we're trying to add.
|
|
SmallVector<AttributeSet, 4> AttrSet;
|
|
uint64_t NumAttrs = pImpl->getNumAttributes();
|
|
AttributeSet AS;
|
|
uint64_t LastIndex = 0;
|
|
for (unsigned I = 0, E = NumAttrs; I != E; ++I) {
|
|
if (getSlotIndex(I) >= Idx) {
|
|
if (getSlotIndex(I) == Idx) AS = getSlotAttributes(LastIndex++);
|
|
break;
|
|
}
|
|
LastIndex = I + 1;
|
|
AttrSet.push_back(getSlotAttributes(I));
|
|
}
|
|
|
|
// Now add the attribute into the correct slot. There may already be an
|
|
// AttributeSet there.
|
|
AttrBuilder B(AS, Idx);
|
|
|
|
for (unsigned I = 0, E = Attrs.pImpl->getNumAttributes(); I != E; ++I)
|
|
if (Attrs.getSlotIndex(I) == Idx) {
|
|
for (AttributeSetImpl::const_iterator II = Attrs.pImpl->begin(I),
|
|
IE = Attrs.pImpl->end(I); II != IE; ++II)
|
|
B.removeAttributes(*II);
|
|
break;
|
|
}
|
|
|
|
AttrSet.push_back(AttributeSet::get(C, Idx, B));
|
|
|
|
// Add the remaining attribute slots.
|
|
for (unsigned I = LastIndex, E = NumAttrs; I < E; ++I)
|
|
AttrSet.push_back(getSlotAttributes(I));
|
|
|
|
return get(C, AttrSet);
|
|
}
|
|
|
|
void AttributeSet::dump() const {
|
|
dbgs() << "PAL[\n";
|
|
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";
|
|
}
|
|
|
|
dbgs() << "]\n";
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeFuncs Function Defintions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Attribute AttributeFuncs::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 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);
|
|
}
|
|
|