[PATCH] Allowing MC backends to decide relaxation based on fixup resolution

[colinl at codeaurora.org]

I'm definitely open to cleaner implementations.

The issue with not doing anything in relaxInstruction() is relaxation will get stuck in an infinite loop.  The relaxation loop assumes that relaxInstruction will eventually change fixupNeedsRelaxation or mayNeedRelaxation to false.


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D8217

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