Inline the 'hasIncompatibleWithVarArgsAttrs' method into its only uses. And some minor comment reformatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170516 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2012-12-19 08:57:40 +00:00
parent 0575429d14
commit 1d3dcfe424
3 changed files with 29 additions and 33 deletions

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@ -27,15 +27,17 @@ class AttributesImpl;
class LLVMContext;
class Type;
/// Attribute - A bitset of attributes.
//===----------------------------------------------------------------------===//
/// \class Functions, function parameters, and return types can have attributes
/// to indicate how they should be treated by optimizations and code
/// generation. This class represents one of those attributes. It's light-weight
/// and should be passed around by-value.
class Attribute {
public:
/// Function parameters and results can have attributes to indicate how they
/// should be treated by optimizations and code generation. This enumeration
/// lists the attributes that can be associated with parameters, function
/// results or the function itself.
/// This enumeration lists the attributes that can be associated with
/// parameters, function results or the function itself.
///
/// Note that uwtable is about the ABI or the user mandating an entry in the
/// Note: uwtable is about the ABI or the user mandating an entry in the
/// unwind table. The nounwind attribute is about an exception passing by the
/// function.
///
@ -93,34 +95,29 @@ private:
public:
Attribute() : Attrs(0) {}
/// get - Return a uniquified Attribute object. This takes the uniquified
/// \brief Return a uniquified Attribute object. This takes the uniquified
/// value from the Builder and wraps it in the Attribute class.
static Attribute get(LLVMContext &Context, ArrayRef<AttrVal> Vals);
static Attribute get(LLVMContext &Context, AttrBuilder &B);
/// @brief Return true if the attribute is present.
/// \brief Return true if the attribute is present.
bool hasAttribute(AttrVal Val) const;
/// @brief Return true if attributes exist
/// \brief Return true if attributes exist
bool hasAttributes() const;
/// @brief Return true if the attributes are a non-null intersection.
/// \brief Return true if the attributes are a non-null intersection.
bool hasAttributes(const Attribute &A) const;
/// @brief Returns the alignment field of an attribute as a byte alignment
/// \brief Returns the alignment field of an attribute as a byte alignment
/// value.
unsigned getAlignment() const;
/// @brief Returns the stack alignment field of an attribute as a byte
/// \brief Returns the stack alignment field of an attribute as a byte
/// alignment value.
unsigned getStackAlignment() const;
/// @brief Parameter attributes that do not apply to vararg call arguments.
bool hasIncompatibleWithVarArgsAttrs() const {
return hasAttribute(Attribute::StructRet);
}
/// @brief Attribute that only apply to function parameters.
/// \brief Attribute that only apply to function parameters.
bool hasParameterOnlyAttrs() const {
return hasAttribute(Attribute::ByVal) ||
hasAttribute(Attribute::Nest) ||
@ -128,7 +125,7 @@ public:
hasAttribute(Attribute::NoCapture);
}
/// @brief Attribute that may be applied to the function itself. These cannot
/// \brief Attribute that may be applied to the function itself. These cannot
/// be used on return values or function parameters.
bool hasFunctionOnlyAttrs() const {
return hasAttribute(Attribute::NoReturn) ||
@ -161,25 +158,23 @@ public:
uint64_t Raw() const;
/// @brief Which attributes cannot be applied to a type.
/// \brief Which attributes cannot be applied to a type.
static Attribute typeIncompatible(Type *Ty);
/// 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.
/// \brief 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.
static uint64_t encodeLLVMAttributesForBitcode(Attribute Attrs);
/// 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'.
/// \brief 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'.
static Attribute decodeLLVMAttributesForBitcode(LLVMContext &C,
uint64_t EncodedAttrs);
/// getAsString - The set of attributes set in Attribute is converted to a
/// string of equivalent mnemonics. This is, presumably, for writing out the
/// mnemonics for the assembly writer.
/// @brief Convert attribute bits to text
/// \brief The set of attributes set in Attribute is converted to a string of
/// equivalent mnemonics. This is, presumably, for writing out the mnemonics
/// for the assembly writer. @brief Convert attribute bits to text
std::string getAsString() const;
};

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@ -1103,7 +1103,8 @@ bool InstCombiner::transformConstExprCastCall(CallSite CS) {
if (CallerPAL.getSlot(i - 1).Index <= FT->getNumParams())
break;
Attribute PAttrs = CallerPAL.getSlot(i - 1).Attrs;
if (PAttrs.hasIncompatibleWithVarArgsAttrs())
// Check if it has an attribute that's incompatible with varargs.
if (PAttrs.hasAttribute(Attribute::StructRet))
return false;
}

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@ -1215,7 +1215,7 @@ void Verifier::VerifyCallSite(CallSite CS) {
VerifyParameterAttrs(Attr, CS.getArgument(Idx-1)->getType(), false, I);
Assert1(!Attr.hasIncompatibleWithVarArgsAttrs(),
Assert1(!Attr.hasAttribute(Attribute::StructRet),
"Attribute 'sret' cannot be used for vararg call arguments!", I);
}