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556324f139
Emit metadata nodes in post-order. The iterative algorithm from r266709 failed to maintain this property. After understanding my mistake, it wasn't too hard to write a test with llvm-bcanalyzer (and I've actually made this change once before: see r220340). This also reverts the "noisy" testcase change from r266709. That should have been more of a red flag :/. Note: The same bug crept into the ValueMapper in r265456. I'm still working on the fix. llvm-svn: 266947