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IR: Move creation logic down to MDTuple, NFC

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Move creation logic for `MDTuple`s down where it belongs.  Once there
are a few more subclasses, these functions really won't make much sense
here (the `friend` relationship was already awkward).  For now, leave
the `MDNode` versions around, but have it forward down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225685 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-01-12 20:13:56 +00:00
parent 0196561697
commit dc6a335d3d
2 changed files with 36 additions and 22 deletions
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46
include/llvm/IR/Metadata.h
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@@ -604,25 +604,15 @@ protected:
void dropAllReferences();
static MDNode *getMDNode(LLVMContext &C, ArrayRef<Metadata *> MDs,
bool Insert = true);
MDOperand *mutable_begin() { return mutable_end() - NumOperands; }
MDOperand *mutable_end() { return reinterpret_cast<MDOperand *>(this); }
public:
static MDNode *get(LLVMContext &Context, ArrayRef<Metadata *> MDs) {
return getMDNode(Context, MDs, true);
}
static MDNode *getIfExists(LLVMContext &Context, ArrayRef<Metadata *> MDs) {
return getMDNode(Context, MDs, false);
}
/// \brief Return a distinct node.
///
/// Return a distinct node -- i.e., a node that is not uniqued.
static MDNode *getDistinct(LLVMContext &Context, ArrayRef<Metadata *> MDs);
static inline MDNode *get(LLVMContext &Context, ArrayRef<Metadata *> MDs);
static inline MDNode *getIfExists(LLVMContext &Context,
ArrayRef<Metadata *> MDs);
static inline MDNode *getDistinct(LLVMContext &Context,
ArrayRef<Metadata *> MDs);
/// \brief Return a temporary MDNode
///
@@ -774,7 +764,6 @@ private:
class MDTuple : public UniquableMDNode {
friend class LLVMContextImpl;
friend class UniquableMDNode;
friend class MDNode;
MDTuple(LLVMContext &C, ArrayRef<Metadata *> Vals, bool AllowRAUW)
: UniquableMDNode(C, MDTupleKind, Vals, AllowRAUW) {}
@@ -783,15 +772,40 @@ class MDTuple : public UniquableMDNode {
void setHash(unsigned Hash) { MDNodeSubclassData = Hash; }
void recalculateHash();
static MDTuple *getImpl(LLVMContext &Context, ArrayRef<Metadata *> MDs,
bool ShouldCreate);
public:
/// \brief Get the hash, if any.
unsigned getHash() const { return MDNodeSubclassData; }
static MDTuple *get(LLVMContext &Context, ArrayRef<Metadata *> MDs) {
return getImpl(Context, MDs, /* ShouldCreate */ true);
}
static MDTuple *getIfExists(LLVMContext &Context, ArrayRef<Metadata *> MDs) {
return getImpl(Context, MDs, /* ShouldCreate */ false);
}
/// \brief Return a distinct node.
///
/// Return a distinct node -- i.e., a node that is not uniqued.
static MDTuple *getDistinct(LLVMContext &Context, ArrayRef<Metadata *> MDs);
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == MDTupleKind;
}
};
MDNode *MDNode::get(LLVMContext &Context, ArrayRef<Metadata *> MDs) {
return MDTuple::get(Context, MDs);
}
MDNode *MDNode::getIfExists(LLVMContext &Context, ArrayRef<Metadata *> MDs) {
return MDTuple::getIfExists(Context, MDs);
}
MDNode *MDNode::getDistinct(LLVMContext &Context, ArrayRef<Metadata *> MDs) {
return MDTuple::getDistinct(Context, MDs);
}
/// \brief Forward declaration of metadata.
///
/// Forward declaration of metadata, in the form of a basic tuple. Unlike \a