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Several tests used file-static functions and variables that were not referenced by the code. Even at -O0, clang omits these entities at the frontend so the tests fail. Since it doesn't look like these tests needed this functionality for what they were testing, I've modified the variables/functions to either be non-static, or marked them with __attribute__((used)). If it's preferred that I use the attribute more pervasively, rather than just making the entities non-static, I can provide a patch for that (or some other preferred solution). There's certainly precedent for both (non-static entities and __attribute__((used)) in the testsuite already and much more of the former than the latter). I have commit-after-review access, so just looking for sign-off here. Thanks, - David
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