http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53110
--- Comment #2 from peterz at infradead dot org 2012-04-25 11:11:19 UTC --- I'll have to let Linus and Peter Anvin argue this (they're on CC), this report is the direct result of their complaints: "If you can *ever* get gcc to generate those andl instructions on x86, then please file a gcc bug report: the constant is 0xffffffff and those are plain zero-extension instructions which is much better done with mov." https://lkml.org/lkml/2012/4/24/524 "What insane version of gcc is that? Can you please make a gcc bug-report?" https://lkml.org/lkml/2012/4/24/549 I'm just the sorry sod who wrote the code... :-)
