[PATCH] Minimal fix for PR20354 - Miscompile of fabs due to vectorization

[Sanjay Patel]

The test case caused buildbot failures because some platforms have a leading '.' when referencing the const pool labels. 
Hopefully, that's fixed with:
http://llvm.org/viewvc/llvm-project?view=revision&revision=214674

Note that this testcase will have to be changed when the optimization to avoid const pool loads is added.

http://reviews.llvm.org/D4770