Begin the transition to using the AttributesImpl object for the Attributes ivar.

Start using the AttributesImpl object to hold the value of the attributes. All
queries go through the interfaces now.

This has one unfortunate consequence. I needed to move the AttributesImpl.h file
into include/llvm. But this is only temporary! Otherwise, the changes needed to
support this would be too large.

llvm-svn: 165433

1 files changed, 170 insertions, 63 deletions

diff --git a/llvm/lib/VMCore/Attributes.cpp b/llvm/lib/VMCore/Attributes.cpp
index d1b693b4c68..e20fa6b4327 100644
--- a/llvm/lib/VMCore/Attributes.cpp
+++ b/llvm/lib/VMCore/Attributes.cpp
@@ -12,7 +12,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Attributes.h"
-#include "AttributesImpl.h"
 #include "LLVMContextImpl.h"
 #include "llvm/Type.h"
 #include "llvm/ADT/StringExtras.h"
@@ -25,99 +24,129 @@
 using namespace llvm;
 
 //===----------------------------------------------------------------------===//
-// Attribute Function Definitions
+// Attributes Implementation
 //===----------------------------------------------------------------------===//
 
+Attributes::Attributes(uint64_t Val) : Attrs(Val) {}
+
+Attributes::Attributes(Attribute::AttrConst Val) : Attrs(Val.v) {}
+
+Attributes::Attributes(AttributesImpl *A) : Attrs(A->Bits) {}
+
+Attributes Attributes::get(LLVMContext &Context, Attributes::Builder &B) {
+  // If there are no attributes, return an empty Attributes class.
+  if (B.Bits == 0)
+    return Attributes();
+
+  // Otherwise, build a key to look up the existing attributes.
+  LLVMContextImpl *pImpl = Context.pImpl;
+  FoldingSetNodeID ID;
+  ID.AddInteger(B.Bits);
+
+  void *InsertPoint;
+  AttributesImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
+
+  if (!PA) {
+    // If we didn't find any existing attributes of the same shape then create a
+    // new one and insert it.
+    PA = new AttributesImpl(B.Bits);
+    pImpl->AttrsSet.InsertNode(PA, InsertPoint);
+  }
+
+  // Return the AttributesList that we found or created.
+  return Attributes(PA);
+}
+
 bool Attributes::hasAttributes(const Attributes &A) const {
-  return Bits & A.Bits;
+  return Attrs.hasAttributes(A);
 }
 bool Attributes::hasAddressSafetyAttr() const {
-  return Bits & Attribute::AddressSafety_i;
+  return Attrs.hasAttribute(Attribute::AddressSafety_i);
 }
 bool Attributes::hasAlignmentAttr() const {
-  return Bits & Attribute::Alignment_i;
+  return Attrs.hasAttribute(Attribute::Alignment_i);
 }
 bool Attributes::hasAlwaysInlineAttr() const {
-  return Bits & Attribute::AlwaysInline_i;
+  return Attrs.hasAttribute(Attribute::AlwaysInline_i);
 }
 bool Attributes::hasByValAttr() const {
-  return Bits & Attribute::ByVal_i;
+  return Attrs.hasAttribute(Attribute::ByVal_i);
 }
 bool Attributes::hasInlineHintAttr() const {
-  return Bits & Attribute::InlineHint_i;
+  return Attrs.hasAttribute(Attribute::InlineHint_i);
 }
 bool Attributes::hasInRegAttr() const {
-  return Bits & Attribute::InReg_i;
+  return Attrs.hasAttribute(Attribute::InReg_i);
 }
 bool Attributes::hasNakedAttr() const {
-  return Bits & Attribute::Naked_i;
+  return Attrs.hasAttribute(Attribute::Naked_i);
 }
 bool Attributes::hasNestAttr() const {
-  return Bits & Attribute::Nest_i;
+  return Attrs.hasAttribute(Attribute::Nest_i);
 }
 bool Attributes::hasNoAliasAttr() const {
-  return Bits & Attribute::NoAlias_i;
+  return Attrs.hasAttribute(Attribute::NoAlias_i);
 }
 bool Attributes::hasNoCaptureAttr() const {
-  return Bits & Attribute::NoCapture_i;
+  return Attrs.hasAttribute(Attribute::NoCapture_i);
 }
 bool Attributes::hasNoImplicitFloatAttr() const {
-  return Bits & Attribute::NoImplicitFloat_i;
+  return Attrs.hasAttribute(Attribute::NoImplicitFloat_i);
 }
 bool Attributes::hasNoInlineAttr() const {
-  return Bits & Attribute::NoInline_i;
+  return Attrs.hasAttribute(Attribute::NoInline_i);
 }
 bool Attributes::hasNonLazyBindAttr() const {
-  return Bits & Attribute::NonLazyBind_i;
+  return Attrs.hasAttribute(Attribute::NonLazyBind_i);
 }
 bool Attributes::hasNoRedZoneAttr() const {
-  return Bits & Attribute::NoRedZone_i;
+  return Attrs.hasAttribute(Attribute::NoRedZone_i);
 }
 bool Attributes::hasNoReturnAttr() const {
-  return Bits & Attribute::NoReturn_i;
+  return Attrs.hasAttribute(Attribute::NoReturn_i);
 }
 bool Attributes::hasNoUnwindAttr() const {
-  return Bits & Attribute::NoUnwind_i;
+  return Attrs.hasAttribute(Attribute::NoUnwind_i);
 }
 bool Attributes::hasOptimizeForSizeAttr() const {
-  return Bits & Attribute::OptimizeForSize_i;
+  return Attrs.hasAttribute(Attribute::OptimizeForSize_i);
 }
 bool Attributes::hasReadNoneAttr() const {
-  return Bits & Attribute::ReadNone_i;
+  return Attrs.hasAttribute(Attribute::ReadNone_i);
 }
 bool Attributes::hasReadOnlyAttr() const {
-  return Bits & Attribute::ReadOnly_i;
+  return Attrs.hasAttribute(Attribute::ReadOnly_i);
 }
 bool Attributes::hasReturnsTwiceAttr() const {
-  return Bits & Attribute::ReturnsTwice_i;
+  return Attrs.hasAttribute(Attribute::ReturnsTwice_i);
 }
 bool Attributes::hasSExtAttr() const {
-  return Bits & Attribute::SExt_i;
+  return Attrs.hasAttribute(Attribute::SExt_i);
 }
 bool Attributes::hasStackAlignmentAttr() const {
-  return Bits & Attribute::StackAlignment_i;
+  return Attrs.hasAttribute(Attribute::StackAlignment_i);
 }
 bool Attributes::hasStackProtectAttr() const {
-  return Bits & Attribute::StackProtect_i;
+  return Attrs.hasAttribute(Attribute::StackProtect_i);
 }
 bool Attributes::hasStackProtectReqAttr() const {
-  return Bits & Attribute::StackProtectReq_i;
+  return Attrs.hasAttribute(Attribute::StackProtectReq_i);
 }
 bool Attributes::hasStructRetAttr() const {
-  return Bits & Attribute::StructRet_i;
+  return Attrs.hasAttribute(Attribute::StructRet_i);
 }
 bool Attributes::hasUWTableAttr() const {
-  return Bits & Attribute::UWTable_i;
+  return Attrs.hasAttribute(Attribute::UWTable_i);
 }
 bool Attributes::hasZExtAttr() const {
-  return Bits & Attribute::ZExt_i;
+  return Attrs.hasAttribute(Attribute::ZExt_i);
 }
 
 /// This returns the alignment field of an attribute as a byte alignment value.
 unsigned Attributes::getAlignment() const {
   if (!hasAlignmentAttr())
     return 0;
-  return 1U << (((Bits & Attribute::Alignment_i) >> 16) - 1);
+  return 1U << ((Attrs.getAlignment() >> 16) - 1);
 }
 
 /// This returns the stack alignment field of an attribute as a byte alignment
@@ -125,32 +154,36 @@ unsigned Attributes::getAlignment() const {
 unsigned Attributes::getStackAlignment() const {
   if (!hasStackAlignmentAttr())
     return 0;
-  return 1U << (((Bits & Attribute::StackAlignment_i) >> 26) - 1);
+  return 1U << ((Attrs.getStackAlignment() >> 26) - 1);
 }
 
 bool Attributes::isEmptyOrSingleton() const {
-  return (Bits & (Bits - 1)) == 0;
+  return Attrs.isEmptyOrSingleton();
 }
 
-Attributes Attributes::operator | (const Attributes &Attrs) const {
-  return Attributes(Bits | Attrs.Bits);
+Attributes Attributes::operator | (const Attributes &A) const {
+  return Attributes(Raw() | A.Raw());
 }
-Attributes Attributes::operator & (const Attributes &Attrs) const {
-  return Attributes(Bits & Attrs.Bits);
+Attributes Attributes::operator & (const Attributes &A) const {
+  return Attributes(Raw() & A.Raw());
 }
-Attributes Attributes::operator ^ (const Attributes &Attrs) const {
-  return Attributes(Bits ^ Attrs.Bits);
+Attributes Attributes::operator ^ (const Attributes &A) const {
+  return Attributes(Raw() ^ A.Raw());
 }
-Attributes &Attributes::operator |= (const Attributes &Attrs) {
-  Bits |= Attrs.Bits;
+Attributes &Attributes::operator |= (const Attributes &A) {
+  Attrs.Bits |= A.Raw();
   return *this;
 }
-Attributes &Attributes::operator &= (const Attributes &Attrs) {
-  Bits &= Attrs.Bits;
+Attributes &Attributes::operator &= (const Attributes &A) {
+  Attrs.Bits &= A.Raw();
   return *this;
 }
 Attributes Attributes::operator ~ () const {
-  return Attributes(~Bits);
+  return Attributes(~Raw());
+}
+
+uint64_t Attributes::Raw() const {
+  return Attrs.Bits;
 }
 
 Attributes Attributes::typeIncompatible(Type *Ty) {
@@ -336,34 +369,108 @@ void Attributes::Builder::addStackAlignmentAttr(unsigned Align) {
   Bits |= (Log2_32(Align) + 1) << 26;
 }
 
+void Attributes::Builder::removeAddressSafetyAttr() {
+  Bits &= ~Attribute::AddressSafety_i;
+}
+void Attributes::Builder::removeAlwaysInlineAttr() {
+  Bits &= ~Attribute::AlwaysInline_i;
+}
+void Attributes::Builder::removeByValAttr() {
+  Bits &= ~Attribute::ByVal_i;
+}
+void Attributes::Builder::removeInlineHintAttr() {
+  Bits &= ~Attribute::InlineHint_i;
+}
+void Attributes::Builder::removeInRegAttr() {
+  Bits &= ~Attribute::InReg_i;
+}
+void Attributes::Builder::removeNakedAttr() {
+  Bits &= ~Attribute::Naked_i;
+}
+void Attributes::Builder::removeNestAttr() {
+  Bits &= ~Attribute::Nest_i;
+}
+void Attributes::Builder::removeNoAliasAttr() {
+  Bits &= ~Attribute::NoAlias_i;
+}
+void Attributes::Builder::removeNoCaptureAttr() {
+  Bits &= ~Attribute::NoCapture_i;
+}
+void Attributes::Builder::removeNoImplicitFloatAttr() {
+  Bits &= ~Attribute::NoImplicitFloat_i;
+}
+void Attributes::Builder::removeNoInlineAttr() {
+  Bits &= ~Attribute::NoInline_i;
+}
+void Attributes::Builder::removeNonLazyBindAttr() {
+  Bits &= ~Attribute::NonLazyBind_i;
+}
+void Attributes::Builder::removeNoRedZoneAttr() {
+  Bits &= ~Attribute::NoRedZone_i;
+}
+void Attributes::Builder::removeNoReturnAttr() {
+  Bits &= ~Attribute::NoReturn_i;
+}
+void Attributes::Builder::removeNoUnwindAttr() {
+  Bits &= ~Attribute::NoUnwind_i;
+}
+void Attributes::Builder::removeOptimizeForSizeAttr() {
+  Bits &= ~Attribute::OptimizeForSize_i;
+}
+void Attributes::Builder::removeReadNoneAttr() {
+  Bits &= ~Attribute::ReadNone_i;
+}
+void Attributes::Builder::removeReadOnlyAttr() {
+  Bits &= ~Attribute::ReadOnly_i;
+}
+void Attributes::Builder::removeReturnsTwiceAttr() {
+  Bits &= ~Attribute::ReturnsTwice_i;
+}
+void Attributes::Builder::removeSExtAttr() {
+  Bits &= ~Attribute::SExt_i;
+}
+void Attributes::Builder::removeStackProtectAttr() {
+  Bits &= ~Attribute::StackProtect_i;
+}
+void Attributes::Builder::removeStackProtectReqAttr() {
+  Bits &= ~Attribute::StackProtectReq_i;
+}
+void Attributes::Builder::removeStructRetAttr() {
+  Bits &= ~Attribute::StructRet_i;
+}
+void Attributes::Builder::removeUWTableAttr() {
+  Bits &= ~Attribute::UWTable_i;
+}
+void Attributes::Builder::removeZExtAttr() {
+  Bits &= ~Attribute::ZExt_i;
+}
+
 //===----------------------------------------------------------------------===//
 // AttributeImpl Definition
 //===----------------------------------------------------------------------===//
 
-Attributes::Attributes(AttributesImpl *A) : Bits(0) {}
+bool AttributesImpl::hasAttribute(uint64_t A) const {
+  return (Bits & A) != 0;
+}
 
-Attributes Attributes::get(LLVMContext &Context, Attributes::Builder &B) {
-  // If there are no attributes, return an empty Attributes class.
-  if (B.Bits == 0)
-    return Attributes();
+bool AttributesImpl::hasAttributes() const {
+  return Bits != 0;
+}
 
-  // Otherwise, build a key to look up the existing attributes.
-  LLVMContextImpl *pImpl = Context.pImpl;
-  FoldingSetNodeID ID;
-  ID.AddInteger(B.Bits);
+bool AttributesImpl::hasAttributes(const Attributes &A) const {
+  return Bits & A.Raw();        // FIXME: Raw() won't work here in the future.
+}
 
-  void *InsertPoint;
-  AttributesImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
+uint64_t AttributesImpl::getAlignment() const {
+  return Bits & Attribute::Alignment_i;
+}
 
-  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);
-    pImpl->AttrsSet.InsertNode(PA, InsertPoint);
-  }
+uint64_t AttributesImpl::getStackAlignment() const {
+  return Bits & Attribute::StackAlignment_i;
+}
 
-  // Return the AttributesList that we found or created.
-  return Attributes(PA);
+bool AttributesImpl::isEmptyOrSingleton() const {
+  return (Bits & (Bits - 1)) == 0;
 }
 
 //===----------------------------------------------------------------------===//