http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47744
--- Comment #19 from Uros Bizjak <ubizjak at gmail dot com> 2011-07-17 22:04:31 UTC --- (In reply to comment #18) > This is the same as > > --- > diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c > index c728c51..414b528 100644 > --- a/gcc/config/i386/i386.c > +++ b/gcc/config/i386/i386.c > @@ -11380,7 +11382,6 @@ ix86_decompose_address (rtx addr, struct ix86_address > *out) > break; > > case REG: > - case SUBREG: > if (!base) > base = op; > else if (!index) No! Subreg of a reg is perfectly valid RTX here.