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| author | Eric Christopher <echristo@apple.com> | 2012-02-15 09:09:29 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2012-02-15 09:09:29 +0000 |
| commit | f32a960fd32b32f84bb486458ccbc905af490da9 (patch) | |
| tree | 90c00395fcdcd46d9336607b0e376d42e9dbf43b | |
| parent | 900d7b78e6cacca6c6062abf803d7ab1a4e39b38 (diff) | |
| download | external_llvm-f32a960fd32b32f84bb486458ccbc905af490da9.zip external_llvm-f32a960fd32b32f84bb486458ccbc905af490da9.tar.gz external_llvm-f32a960fd32b32f84bb486458ccbc905af490da9.tar.bz2 | |
Add a way to replace a field inside a metadata node. This can be
used to incrementally update a created node without needing a
temporary node and RAUW.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150571 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | include/llvm/Metadata.h | 3 | ||||
| -rw-r--r-- | lib/VMCore/Metadata.cpp | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/llvm/Metadata.h b/include/llvm/Metadata.h index 9466a57..29458ef 100644 --- a/include/llvm/Metadata.h +++ b/include/llvm/Metadata.h @@ -135,6 +135,9 @@ public: /// deleteTemporary - Deallocate a node created by getTemporary. The /// node must not have any users. static void deleteTemporary(MDNode *N); + + /// replaceOperandWith - Replace a specific operand. + void replaceOperandWith(unsigned i, Value *NewVal); /// getOperand - Return specified operand. Value *getOperand(unsigned i) const; diff --git a/lib/VMCore/Metadata.cpp b/lib/VMCore/Metadata.cpp index 5d6eb14..0fc2a25 100644 --- a/lib/VMCore/Metadata.cpp +++ b/lib/VMCore/Metadata.cpp @@ -87,6 +87,11 @@ static MDNodeOperand *getOperandPtr(MDNode *N, unsigned Op) { return reinterpret_cast<MDNodeOperand*>(N+1)+Op; } +void MDNode::replaceOperandWith(unsigned i, Value *Val) { + MDNodeOperand *Op = getOperandPtr(this, i); + replaceOperand(Op, Val); +} + MDNode::MDNode(LLVMContext &C, ArrayRef<Value*> Vals, bool isFunctionLocal) : Value(Type::getMetadataTy(C), Value::MDNodeVal) { NumOperands = Vals.size(); |