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Re-commit "[IR] Add NODISCARD to attribute functions" 

Now that https://reviews.llvm.org/D55435 is committed,
https://reviews.llvm.org/D55217 can be committed once again -- all warnings are
now fixed.

llvm-svn: 348733
This commit is contained in:
Brian Gesiak 2018-12-09 22:36:07 +00:00
parent b963c5150d
commit dd5341f82d
1 changed files with 64 additions and 53 deletions
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117
llvm/include/llvm/IR/Attributes.h
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@ -230,29 +230,33 @@ public:
/// Add an argument attribute. Returns a new set because attribute sets are
/// immutable.
AttributeSet addAttribute(LLVMContext &C, Attribute::AttrKind Kind) const;
LLVM_NODISCARD AttributeSet addAttribute(LLVMContext &C,
Attribute::AttrKind Kind) const;
/// Add a target-dependent attribute. Returns a new set because attribute sets
/// are immutable.
AttributeSet addAttribute(LLVMContext &C, StringRef Kind,
StringRef Value = StringRef()) const;
LLVM_NODISCARD AttributeSet addAttribute(LLVMContext &C, StringRef Kind,
StringRef Value = StringRef()) const;
/// Add attributes to the attribute set. Returns a new set because attribute
/// sets are immutable.
AttributeSet addAttributes(LLVMContext &C, AttributeSet AS) const;
LLVM_NODISCARD AttributeSet addAttributes(LLVMContext &C,
AttributeSet AS) const;
/// Remove the specified attribute from this set. Returns a new set because
/// attribute sets are immutable.
AttributeSet removeAttribute(LLVMContext &C, Attribute::AttrKind Kind) const;
LLVM_NODISCARD AttributeSet removeAttribute(LLVMContext &C,
Attribute::AttrKind Kind) const;
/// Remove the specified attribute from this set. Returns a new set because
/// attribute sets are immutable.
AttributeSet removeAttribute(LLVMContext &C, StringRef Kind) const;
LLVM_NODISCARD AttributeSet removeAttribute(LLVMContext &C,
StringRef Kind) const;
/// Remove the specified attributes from this set. Returns a new set because
/// attribute sets are immutable.
AttributeSet removeAttributes(LLVMContext &C,
const AttrBuilder &AttrsToRemove) const;
LLVM_NODISCARD AttributeSet
removeAttributes(LLVMContext &C, const AttrBuilder &AttrsToRemove) const;
/// Return the number of attributes in this set.
unsigned getNumAttributes() const;
@ -375,133 +379,140 @@ public:
/// Add an attribute to the attribute set at the given index.
/// Returns a new list because attribute lists are immutable.
AttributeList addAttribute(LLVMContext &C, unsigned Index,
Attribute::AttrKind Kind) const;
LLVM_NODISCARD AttributeList addAttribute(LLVMContext &C, unsigned Index,
Attribute::AttrKind Kind) const;
/// Add an attribute to the attribute set at the given index.
/// Returns a new list because attribute lists are immutable.
AttributeList addAttribute(LLVMContext &C, unsigned Index, StringRef Kind,
StringRef Value = StringRef()) const;
LLVM_NODISCARD AttributeList
addAttribute(LLVMContext &C, unsigned Index, StringRef Kind,
StringRef Value = StringRef()) const;
/// Add an attribute to the attribute set at the given index.
/// Returns a new list because attribute lists are immutable.
AttributeList addAttribute(LLVMContext &C, unsigned Index, Attribute A) const;
LLVM_NODISCARD AttributeList addAttribute(LLVMContext &C, unsigned Index,
Attribute A) const;
/// Add attributes to the attribute set at the given index.
/// Returns a new list because attribute lists are immutable.
AttributeList addAttributes(LLVMContext &C, unsigned Index,
const AttrBuilder &B) const;
LLVM_NODISCARD AttributeList addAttributes(LLVMContext &C, unsigned Index,
const AttrBuilder &B) const;
/// Add an argument attribute to the list. Returns a new list because
/// attribute lists are immutable.
AttributeList addParamAttribute(LLVMContext &C, unsigned ArgNo,
Attribute::AttrKind Kind) const {
LLVM_NODISCARD AttributeList addParamAttribute(
LLVMContext &C, unsigned ArgNo, Attribute::AttrKind Kind) const {
return addAttribute(C, ArgNo + FirstArgIndex, Kind);
}
/// Add an argument attribute to the list. Returns a new list because
/// attribute lists are immutable.
AttributeList addParamAttribute(LLVMContext &C, unsigned ArgNo,
StringRef Kind,
StringRef Value = StringRef()) const {
LLVM_NODISCARD AttributeList
addParamAttribute(LLVMContext &C, unsigned ArgNo, StringRef Kind,
StringRef Value = StringRef()) const {
return addAttribute(C, ArgNo + FirstArgIndex, Kind, Value);
}
/// Add an attribute to the attribute list at the given arg indices. Returns a
/// new list because attribute lists are immutable.
AttributeList addParamAttribute(LLVMContext &C, ArrayRef<unsigned> ArgNos,
Attribute A) const;
LLVM_NODISCARD AttributeList addParamAttribute(LLVMContext &C,
ArrayRef<unsigned> ArgNos,
Attribute A) const;
/// Add an argument attribute to the list. Returns a new list because
/// attribute lists are immutable.
AttributeList addParamAttributes(LLVMContext &C, unsigned ArgNo,
const AttrBuilder &B) const {
LLVM_NODISCARD AttributeList addParamAttributes(LLVMContext &C,
unsigned ArgNo,
const AttrBuilder &B) const {
return addAttributes(C, ArgNo + FirstArgIndex, B);
}
/// Remove the specified attribute at the specified index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeAttribute(LLVMContext &C, unsigned Index,
Attribute::AttrKind Kind) const;
LLVM_NODISCARD AttributeList removeAttribute(LLVMContext &C, unsigned Index,
Attribute::AttrKind Kind) const;
/// Remove the specified attribute at the specified index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeAttribute(LLVMContext &C, unsigned Index,
StringRef Kind) const;
LLVM_NODISCARD AttributeList removeAttribute(LLVMContext &C, unsigned Index,
StringRef Kind) const;
/// Remove the specified attributes at the specified index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeAttributes(LLVMContext &C, unsigned Index,
const AttrBuilder &AttrsToRemove) const;
LLVM_NODISCARD AttributeList removeAttributes(
LLVMContext &C, unsigned Index, const AttrBuilder &AttrsToRemove) const;
/// Remove all attributes at the specified index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeAttributes(LLVMContext &C, unsigned Index) const;
LLVM_NODISCARD AttributeList removeAttributes(LLVMContext &C,
unsigned Index) const;
/// Remove the specified attribute at the specified arg index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeParamAttribute(LLVMContext &C, unsigned ArgNo,
Attribute::AttrKind Kind) const {
LLVM_NODISCARD AttributeList removeParamAttribute(
LLVMContext &C, unsigned ArgNo, Attribute::AttrKind Kind) const {
return removeAttribute(C, ArgNo + FirstArgIndex, Kind);
}
/// Remove the specified attribute at the specified arg index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeParamAttribute(LLVMContext &C, unsigned ArgNo,
StringRef Kind) const {
LLVM_NODISCARD AttributeList removeParamAttribute(LLVMContext &C,
unsigned ArgNo,
StringRef Kind) const {
return removeAttribute(C, ArgNo + FirstArgIndex, Kind);
}
/// Remove the specified attribute at the specified arg index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeParamAttributes(LLVMContext &C, unsigned ArgNo,
const AttrBuilder &AttrsToRemove) const {
LLVM_NODISCARD AttributeList removeParamAttributes(
LLVMContext &C, unsigned ArgNo, const AttrBuilder &AttrsToRemove) const {
return removeAttributes(C, ArgNo + FirstArgIndex, AttrsToRemove);
}
/// Remove all attributes at the specified arg index from this
/// attribute list. Returns a new list because attribute lists are immutable.
AttributeList removeParamAttributes(LLVMContext &C, unsigned ArgNo) const {
LLVM_NODISCARD AttributeList removeParamAttributes(LLVMContext &C,
unsigned ArgNo) const {
return removeAttributes(C, ArgNo + FirstArgIndex);
}
/// \brief Add the dereferenceable attribute to the attribute set at the given
/// index. Returns a new list because attribute lists are immutable.
AttributeList addDereferenceableAttr(LLVMContext &C, unsigned Index,
uint64_t Bytes) const;
LLVM_NODISCARD AttributeList addDereferenceableAttr(LLVMContext &C,
unsigned Index,
uint64_t Bytes) const;
/// \brief Add the dereferenceable attribute to the attribute set at the given
/// arg index. Returns a new list because attribute lists are immutable.
AttributeList addDereferenceableParamAttr(LLVMContext &C, unsigned ArgNo,
uint64_t Bytes) const {
LLVM_NODISCARD AttributeList addDereferenceableParamAttr(
LLVMContext &C, unsigned ArgNo, uint64_t Bytes) const {
return addDereferenceableAttr(C, ArgNo + FirstArgIndex, Bytes);
}
/// Add the dereferenceable_or_null attribute to the attribute set at
/// the given index. Returns a new list because attribute lists are immutable.
AttributeList addDereferenceableOrNullAttr(LLVMContext &C, unsigned Index,
uint64_t Bytes) const;
LLVM_NODISCARD AttributeList addDereferenceableOrNullAttr(
LLVMContext &C, unsigned Index, uint64_t Bytes) const;
/// Add the dereferenceable_or_null attribute to the attribute set at
/// the given arg index. Returns a new list because attribute lists are
/// immutable.
AttributeList addDereferenceableOrNullParamAttr(LLVMContext &C,
unsigned ArgNo,
uint64_t Bytes) const {
LLVM_NODISCARD AttributeList addDereferenceableOrNullParamAttr(
LLVMContext &C, unsigned ArgNo, uint64_t Bytes) const {
return addDereferenceableOrNullAttr(C, ArgNo + FirstArgIndex, Bytes);
}
/// Add the allocsize attribute to the attribute set at the given index.
/// Returns a new list because attribute lists are immutable.
AttributeList addAllocSizeAttr(LLVMContext &C, unsigned Index,
unsigned ElemSizeArg,
const Optional<unsigned> &NumElemsArg);
LLVM_NODISCARD AttributeList
addAllocSizeAttr(LLVMContext &C, unsigned Index, unsigned ElemSizeArg,
const Optional<unsigned> &NumElemsArg);
/// Add the allocsize attribute to the attribute set at the given arg index.
/// Returns a new list because attribute lists are immutable.
AttributeList addAllocSizeParamAttr(LLVMContext &C, unsigned ArgNo,
unsigned ElemSizeArg,
const Optional<unsigned> &NumElemsArg) {
LLVM_NODISCARD AttributeList
addAllocSizeParamAttr(LLVMContext &C, unsigned ArgNo, unsigned ElemSizeArg,
const Optional<unsigned> &NumElemsArg) {
return addAllocSizeAttr(C, ArgNo + FirstArgIndex, ElemSizeArg, NumElemsArg);
}