tree b4d9f5ab21b8f58aa4a5e85c4ea1478146729c7f
parent 2149577f892116d4080d16fbf0b0455b1026b219
author Eric Fiselier <eric@efcs.ca> 1468270730 -0600
committer Eric Fiselier <eric@efcs.ca> 1468270730 -0600

Provide a better implementation of DoNotOptimize(...).

This implementation is less likely to ICE compilers, and is more correct.
It also acts as a memory barrier which will help prevent writes to global memory
from being optimized away.