working on instruction mix histogram -- current code is
puking in instrument_entire_function for a reason I have
not yet tracked down.
Merge branch 'master' of https://github.com/losalamos/Byfl

(patch)

Conflicts:
	lib/byfl/byfl.cpp
First cut at what appears to be a working instruction mix
instrumentation.  Still need to convert integer opcode values to
human-readable strings.
Added instruction mix flag to documentation.

Fixed bug when tallying instruction mix and encountering phi node (and screwing it up).

Fixed NAN reports when optimization passes remove all stores.

Updated wrapper script to include '-bf-post-opt' flag to run byfl after optimizations
versus the default behavior of running it pre-optimization.
Added support for instruction mix tally.  Also added flag to wrapper
script(s) to run byfl pass post-optimization (vs. default behavior of
pre-optimization).