-//===-- Attributes.cpp - Implement ParamAttrsList -------------------------===//
+//===-- Attributes.cpp - Implement AttributesList -------------------------===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// This file implements the ParamAttrsList class and ParamAttr utilities.
+// This file implements the AttributesList class and Attribute utilities.
//
//===----------------------------------------------------------------------===//
#include "llvm/Type.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/FoldingSet.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/System/Atomic.h"
+#include "llvm/System/Mutex.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
-// ParamAttr Function Definitions
+// Attribute Function Definitions
//===----------------------------------------------------------------------===//
-std::string ParamAttr::getAsString(Attributes Attrs) {
+std::string Attribute::getAsString(Attributes Attrs) {
std::string Result;
- if (Attrs & ParamAttr::ZExt)
+ if (Attrs & Attribute::ZExt)
Result += "zeroext ";
- if (Attrs & ParamAttr::SExt)
+ if (Attrs & Attribute::SExt)
Result += "signext ";
- if (Attrs & ParamAttr::NoReturn)
+ if (Attrs & Attribute::NoReturn)
Result += "noreturn ";
- if (Attrs & ParamAttr::NoUnwind)
+ if (Attrs & Attribute::NoUnwind)
Result += "nounwind ";
- if (Attrs & ParamAttr::InReg)
+ if (Attrs & Attribute::InReg)
Result += "inreg ";
- if (Attrs & ParamAttr::NoAlias)
+ if (Attrs & Attribute::NoAlias)
Result += "noalias ";
- if (Attrs & ParamAttr::StructRet)
- Result += "sret ";
- if (Attrs & ParamAttr::ByVal)
+ if (Attrs & Attribute::NoCapture)
+ Result += "nocapture ";
+ if (Attrs & Attribute::StructRet)
+ Result += "sret ";
+ if (Attrs & Attribute::ByVal)
Result += "byval ";
- if (Attrs & ParamAttr::Nest)
+ if (Attrs & Attribute::Nest)
Result += "nest ";
- if (Attrs & ParamAttr::ReadNone)
+ if (Attrs & Attribute::ReadNone)
Result += "readnone ";
- if (Attrs & ParamAttr::ReadOnly)
+ if (Attrs & Attribute::ReadOnly)
Result += "readonly ";
- if (Attrs & ParamAttr::Alignment) {
+ if (Attrs & Attribute::OptimizeForSize)
+ Result += "optsize ";
+ if (Attrs & Attribute::NoInline)
+ Result += "noinline ";
+ if (Attrs & Attribute::InlineHint)
+ Result += "inlinehint ";
+ if (Attrs & Attribute::AlwaysInline)
+ Result += "alwaysinline ";
+ if (Attrs & Attribute::StackProtect)
+ Result += "ssp ";
+ if (Attrs & Attribute::StackProtectReq)
+ Result += "sspreq ";
+ if (Attrs & Attribute::NoRedZone)
+ Result += "noredzone ";
+ if (Attrs & Attribute::NoImplicitFloat)
+ Result += "noimplicitfloat ";
+ if (Attrs & Attribute::Naked)
+ Result += "naked ";
+ if (Attrs & Attribute::StackAlignment) {
+ Result += "alignstack(";
+ Result += utostr(Attribute::getStackAlignmentFromAttrs(Attrs));
+ Result += ") ";
+ }
+ if (Attrs & Attribute::Alignment) {
Result += "align ";
- Result += utostr((Attrs & ParamAttr::Alignment) >> 16);
+ Result += utostr(Attribute::getAlignmentFromAttrs(Attrs));
Result += " ";
}
// Trim the trailing space.
+ assert(!Result.empty() && "Unknown attribute!");
Result.erase(Result.end()-1);
return Result;
}
-Attributes ParamAttr::typeIncompatible(const Type *Ty) {
+Attributes Attribute::typeIncompatible(const Type *Ty) {
Attributes Incompatible = None;
- if (!Ty->isInteger())
+ if (!Ty->isIntegerTy())
// Attributes that only apply to integers.
Incompatible |= SExt | ZExt;
if (!isa<PointerType>(Ty))
// Attributes that only apply to pointers.
- Incompatible |= ByVal | Nest | NoAlias | StructRet;
+ Incompatible |= ByVal | Nest | NoAlias | StructRet | NoCapture;
return Incompatible;
}
namespace llvm {
class AttributeListImpl : public FoldingSetNode {
- unsigned RefCount;
+ sys::cas_flag RefCount;
- // ParamAttrsList is uniqued, these should not be publicly available.
+ // AttributesList is uniqued, these should not be publicly available.
void operator=(const AttributeListImpl &); // Do not implement
AttributeListImpl(const AttributeListImpl &); // Do not implement
~AttributeListImpl(); // Private implementation
public:
- SmallVector<ParamAttrsWithIndex, 4> Attrs;
+ SmallVector<AttributeWithIndex, 4> Attrs;
- AttributeListImpl(const ParamAttrsWithIndex *Attr, unsigned NumAttrs)
+ AttributeListImpl(const AttributeWithIndex *Attr, unsigned NumAttrs)
: Attrs(Attr, Attr+NumAttrs) {
RefCount = 0;
}
- void AddRef() { ++RefCount; }
- void DropRef() { if (--RefCount == 0) delete this; }
+ void AddRef() { sys::AtomicIncrement(&RefCount); }
+ void DropRef() {
+ sys::cas_flag old = sys::AtomicDecrement(&RefCount);
+ if (old == 0) delete this;
+ }
void Profile(FoldingSetNodeID &ID) const {
- Profile(ID, &Attrs[0], Attrs.size());
+ Profile(ID, Attrs.data(), Attrs.size());
}
- static void Profile(FoldingSetNodeID &ID, const ParamAttrsWithIndex *Attr,
+ static void Profile(FoldingSetNodeID &ID, const AttributeWithIndex *Attr,
unsigned NumAttrs) {
for (unsigned i = 0; i != NumAttrs; ++i)
ID.AddInteger(uint64_t(Attr[i].Attrs) << 32 | unsigned(Attr[i].Index));
};
}
-static ManagedStatic<FoldingSet<AttributeListImpl> > ParamAttrsLists;
+static ManagedStatic<sys::SmartMutex<true> > ALMutex;
+static ManagedStatic<FoldingSet<AttributeListImpl> > AttributesLists;
AttributeListImpl::~AttributeListImpl() {
- ParamAttrsLists->RemoveNode(this);
+ sys::SmartScopedLock<true> Lock(*ALMutex);
+ AttributesLists->RemoveNode(this);
}
-PAListPtr PAListPtr::get(const ParamAttrsWithIndex *Attrs, unsigned NumAttrs) {
- // If there are no attributes then return a null ParamAttrsList pointer.
+AttrListPtr AttrListPtr::get(const AttributeWithIndex *Attrs, unsigned NumAttrs) {
+ // If there are no attributes then return a null AttributesList pointer.
if (NumAttrs == 0)
- return PAListPtr();
+ return AttrListPtr();
#ifndef NDEBUG
for (unsigned i = 0; i != NumAttrs; ++i) {
- assert(Attrs[i].Attrs != ParamAttr::None &&
- "Pointless parameter attribute!");
+ assert(Attrs[i].Attrs != Attribute::None &&
+ "Pointless attribute!");
assert((!i || Attrs[i-1].Index < Attrs[i].Index) &&
- "Misordered ParamAttrsList!");
+ "Misordered AttributesList!");
}
#endif
FoldingSetNodeID ID;
AttributeListImpl::Profile(ID, Attrs, NumAttrs);
void *InsertPos;
+
+ sys::SmartScopedLock<true> Lock(*ALMutex);
+
AttributeListImpl *PAL =
- ParamAttrsLists->FindNodeOrInsertPos(ID, InsertPos);
+ 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, NumAttrs);
- ParamAttrsLists->InsertNode(PAL, InsertPos);
+ AttributesLists->InsertNode(PAL, InsertPos);
}
- // Return the ParamAttrsList that we found or created.
- return PAListPtr(PAL);
+ // Return the AttributesList that we found or created.
+ return AttrListPtr(PAL);
}
//===----------------------------------------------------------------------===//
-// PAListPtr Method Implementations
+// AttrListPtr Method Implementations
//===----------------------------------------------------------------------===//
-PAListPtr::PAListPtr(AttributeListImpl *LI) : PAList(LI) {
+AttrListPtr::AttrListPtr(AttributeListImpl *LI) : AttrList(LI) {
if (LI) LI->AddRef();
}
-PAListPtr::PAListPtr(const PAListPtr &P) : PAList(P.PAList) {
- if (PAList) PAList->AddRef();
+AttrListPtr::AttrListPtr(const AttrListPtr &P) : AttrList(P.AttrList) {
+ if (AttrList) AttrList->AddRef();
}
-const PAListPtr &PAListPtr::operator=(const PAListPtr &RHS) {
- if (PAList == RHS.PAList) return *this;
- if (PAList) PAList->DropRef();
- PAList = RHS.PAList;
- if (PAList) PAList->AddRef();
+const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
+ if (AttrList == RHS.AttrList) return *this;
+ if (AttrList) AttrList->DropRef();
+ AttrList = RHS.AttrList;
+ if (AttrList) AttrList->AddRef();
return *this;
}
-PAListPtr::~PAListPtr() {
- if (PAList) PAList->DropRef();
+AttrListPtr::~AttrListPtr() {
+ if (AttrList) AttrList->DropRef();
}
/// 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 PAListPtr::getNumSlots() const {
- return PAList ? PAList->Attrs.size() : 0;
+unsigned AttrListPtr::getNumSlots() const {
+ return AttrList ? AttrList->Attrs.size() : 0;
}
-/// getSlot - Return the ParamAttrsWithIndex at the specified slot. This
-/// holds a parameter number plus a set of attributes.
-const ParamAttrsWithIndex &PAListPtr::getSlot(unsigned Slot) const {
- assert(PAList && Slot < PAList->Attrs.size() && "Slot # out of range!");
- return PAList->Attrs[Slot];
+/// getSlot - Return the AttributeWithIndex at the specified slot. This
+/// holds a number plus a set of attributes.
+const AttributeWithIndex &AttrListPtr::getSlot(unsigned Slot) const {
+ assert(AttrList && Slot < AttrList->Attrs.size() && "Slot # out of range!");
+ return AttrList->Attrs[Slot];
}
-/// getParamAttrs - The parameter attributes for the specified parameter are
-/// returned. Parameters for the result 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 PAListPtr::getParamAttrs(unsigned Idx) const {
- if (PAList == 0) return ParamAttr::None;
+Attributes AttrListPtr::getAttributes(unsigned Idx) const {
+ if (AttrList == 0) return Attribute::None;
- const SmallVector<ParamAttrsWithIndex, 4> &Attrs = PAList->Attrs;
+ 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 ParamAttr::None;
+ return Attribute::None;
}
/// hasAttrSomewhere - Return true if the specified attribute is set for at
/// least one parameter or for the return value.
-bool PAListPtr::hasAttrSomewhere(Attributes Attr) const {
- if (PAList == 0) return false;
+bool AttrListPtr::hasAttrSomewhere(Attributes Attr) const {
+ if (AttrList == 0) return false;
- const SmallVector<ParamAttrsWithIndex, 4> &Attrs = PAList->Attrs;
+ const SmallVector<AttributeWithIndex, 4> &Attrs = AttrList->Attrs;
for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
if (Attrs[i].Attrs & Attr)
return true;
}
-PAListPtr PAListPtr::addAttr(unsigned Idx, Attributes Attrs) const {
- Attributes OldAttrs = getParamAttrs(Idx);
+AttrListPtr AttrListPtr::addAttr(unsigned Idx, Attributes Attrs) const {
+ Attributes 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.
- Attributes OldAlign = OldAttrs & ParamAttr::Alignment;
- Attributes NewAlign = Attrs & ParamAttr::Alignment;
+ Attributes OldAlign = OldAttrs & Attribute::Alignment;
+ Attributes NewAlign = Attrs & Attribute::Alignment;
assert((!OldAlign || !NewAlign || OldAlign == NewAlign) &&
"Attempt to change alignment!");
#endif
if (NewAttrs == OldAttrs)
return *this;
- SmallVector<ParamAttrsWithIndex, 8> NewAttrList;
- if (PAList == 0)
- NewAttrList.push_back(ParamAttrsWithIndex::get(Idx, Attrs));
+ SmallVector<AttributeWithIndex, 8> NewAttrList;
+ if (AttrList == 0)
+ NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
else {
- const SmallVector<ParamAttrsWithIndex, 4> &OldAttrList = PAList->Attrs;
+ 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)
++i;
}
- NewAttrList.push_back(ParamAttrsWithIndex::get(Idx, Attrs));
+ NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
// Copy attributes for arguments after this one.
NewAttrList.insert(NewAttrList.end(),
OldAttrList.begin()+i, OldAttrList.end());
}
- return get(&NewAttrList[0], NewAttrList.size());
+ return get(NewAttrList.data(), NewAttrList.size());
}
-PAListPtr PAListPtr::removeAttr(unsigned Idx, Attributes Attrs) const {
+AttrListPtr AttrListPtr::removeAttr(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 & ParamAttr::Alignment) && "Attempt to exclude alignment!");
+ assert(!(Attrs & Attribute::Alignment) && "Attempt to exclude alignment!");
#endif
- if (PAList == 0) return PAListPtr();
+ if (AttrList == 0) return AttrListPtr();
- Attributes OldAttrs = getParamAttrs(Idx);
+ Attributes OldAttrs = getAttributes(Idx);
Attributes NewAttrs = OldAttrs & ~Attrs;
if (NewAttrs == OldAttrs)
return *this;
- SmallVector<ParamAttrsWithIndex, 8> NewAttrList;
- const SmallVector<ParamAttrsWithIndex, 4> &OldAttrList = PAList->Attrs;
+ SmallVector<AttributeWithIndex, 8> NewAttrList;
+ const SmallVector<AttributeWithIndex, 4> &OldAttrList = AttrList->Attrs;
unsigned i = 0, e = OldAttrList.size();
// Copy attributes for arguments before this one.
Attrs = OldAttrList[i].Attrs & ~Attrs;
++i;
if (Attrs) // If any attributes left for this parameter, add them.
- NewAttrList.push_back(ParamAttrsWithIndex::get(Idx, Attrs));
+ NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
// Copy attributes for arguments after this one.
NewAttrList.insert(NewAttrList.end(),
OldAttrList.begin()+i, OldAttrList.end());
- return get(&NewAttrList[0], NewAttrList.size());
+ return get(NewAttrList.data(), NewAttrList.size());
}
-void PAListPtr::dump() const {
- cerr << "PAL[ ";
+void AttrListPtr::dump() const {
+ dbgs() << "PAL[ ";
for (unsigned i = 0; i < getNumSlots(); ++i) {
- const ParamAttrsWithIndex &PAWI = getSlot(i);
- cerr << "{" << PAWI.Index << "," << PAWI.Attrs << "} ";
+ const AttributeWithIndex &PAWI = getSlot(i);
+ dbgs() << "{" << PAWI.Index << "," << PAWI.Attrs << "} ";
}
- cerr << "]\n";
+ dbgs() << "]\n";
}
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