[Bug middle-end/33181] [4.3 Regression] Revision 127766 generates bad cmov

rguenther at suse dot de gcc-bugzilla@gcc.gnu.org
Sun Aug 26 14:44:00 GMT 2007



------- Comment #7 from rguenther at suse dot de  2007-08-26 14:43 -------
Subject: Re:  [4.3 Regression]  Revision 127766 generates
 bad cmov

On Sun, 26 Aug 2007, ubizjak at gmail dot com wrote:

> So, previous non-note insn from (insn 33) is (insn 28)(!!) in a totally
> unrelated BB, leading to all sort of strange things.

Since ifcvt is now working in cfg-layout mode basically all uses
of prev_nonnote_insn are busted.  I guess you could check if the
result is in the "right" BB, but ...


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33181



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