------- Comment #3 from stuart at apple dot com 2007-02-12 18:32 ------- O.K., the breakage here is that athlon-xp is an SSE1 machine, and most of the conversions in the patch require SSE2. It looks like SSE1 will support a few of the new conversions (e.g. unsigned int32 <=> float); I'll see about enabling these for SSE1 targets, and arranging for the SSE2-only conversions to fall back to the x87.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30757