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Add support for empty metadata nodes: !{}.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108259 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-07-13 19:33:27 +00:00
parent 218977b53e
commit ac80975ea4
4 changed files with 11 additions and 4 deletions
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3
lib/VMCore/Metadata.cpp
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@@ -78,7 +78,8 @@ void MDNodeOperand::allUsesReplacedWith(Value *NV) {
/// getOperandPtr - Helper function to get the MDNodeOperand's coallocated on
/// the end of the MDNode.
static MDNodeOperand *getOperandPtr(MDNode *N, unsigned Op) {
assert(Op < N->getNumOperands() && "Invalid operand number");
// Use <= instead of < to permit a one-past-the-end address.
assert(Op <= N->getNumOperands() && "Invalid operand number");
return reinterpret_cast<MDNodeOperand*>(N+1)+Op;
}