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Re: [PATCH] Fix *two* AVR backend bugs (PR19293 + PR19329)
- From: Paul Schlie <schlie at comcast dot net>
- To: Bernardo Innocenti <bernie at develer dot com>,Giovanni Bajo <rasky at develer dot com>,<denisc at overta dot ru>,Stefano Fedrigo <aleph at develer dot com>,Marek Michalkiewicz <marekm at amelek dot gda dot pl>
- Cc: <gcc-patches at gcc dot gnu dot org>,Mark Mitchell <mark at codesourcery dot com>
- Date: Sun, 23 Jan 2005 12:38:14 -0500
- Subject: Re: [PATCH] Fix *two* AVR backend bugs (PR19293 + PR19329)
> From: Paul Schlie <firstname.lastname@example.org>
> ... (minimally, likely doing nothing for out-of-range shifts, as
> generating code to implement an undefined behavior may not be necessarily
Although acknowledge that a saturating behavior for non-negative shifts may
be desirable if the middle-end presumes ((x >> y) >> y) :: (x >> (2 * y)),
or it's analogy for left-shifts; but it's not clear that it officially does?