[PATCH] Resurrect the assertion removed by r227717
jingyue at google.com
Mon Feb 2 10:12:28 PST 2015
I suspect the issue you saw is a bug in MSVC. There **is** a path from `MDOperand &` to `const MDNode *`. http://llvm.org/docs/doxygen/html/Metadata_8h_source.html#l00547 defines a type caster from `MDOperand &` to `Metadata *`, `Metadata` is a super class of `MDNode`, and finally changing constness is a valid implicit cast.
Anyhow, I noticed `Loop::getLoopID()` returns `MDNode *` instead of `const MDNode *`, and using `MDNode *` seems to work for MSVC. Therefore, I took this approach. Did you confirm it does fix the building error on your end?
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