D-Programming-Language/dmd — pull request #1928 by WalterBright (2013-04-24 07:04:52+00:00)
Title: JA to JC, JBE to JNC

This tries to rewrite comparisons so that JA is replace by JC, and JBE to JNC. This is so that other optimizations that do clever things with the Carry bit can work.

See http://d.puremagic.com/issues/show_bug.cgi?id=9963