kripken/emscripten — pull request #954 by waywardmonkeys (2013-03-15 15:44:24+00:00)
Title: Tell LLVM opt to do a final cfg simplification.

With the updated libcxx, I have a test case that fails due to
an invalid CFG after "opt -O3". This has been reported upstream
as http://llvm.org/bugs/show_bug.cgi?id=15518.