I've compiled our large project with both switches. The some 400 test files are mostly nearly equal in both cases with a few having large diffs. In one particular case, I'm interested in tracking down what the possible differences could be (as it is only for a few variables), but I'm a bit stumped at what to look for.
So, any hints on what to look for in code would be helpful.
Also -- if I were to run both versions in debug -- /fp:fast and /fp:source -- would that show up those kinds of diffs?
Any hints appreciated.