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Commit 54829bb3 authored by Haojian Wu's avatar Haojian Wu
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Fix an undefined behavior when storing an empty StringRef. 

Summary: Passing a nullptr to memcpy is UB.

Reviewers: ioeric

Subscribers: llvm-commits, cfe-commits

Differential Revision: https://reviews.llvm.org/D50966

llvm-svn: 340170
parent 5b78c9d5
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