tree ccafd629deaca4da52acb495a3cef4c67e20373a
parent 594c759f37c301d0245dc2accf4d4aaf9d202819
author Jason Evans <je@fb.com> 1441387901 -0700
committer Jason Evans <je@fb.com> 1441387901 -0700

Fix pointer comparision with undefined behavior.

This didn't cause bad code generation in the one case spot-checked (gcc
4.8.1), but had the potential to to so.  This bug was introduced by
594c759f37c301d0245dc2accf4d4aaf9d202819 (Optimize
arena_prof_tctx_set().).