From: Ian Lance Taylor <iant@google.com>
To: "Paulo J. Matos" <pocmatos@gmail.com>
Cc: gcc@gcc.gnu.org
Subject: Re: avr compilation
Date: Fri, 18 Mar 2011 14:20:00 -0000 [thread overview]
Message-ID: <mcraagsldd4.fsf@google.com> (raw)
In-Reply-To: <ilvnab$8td$2@dough.gmane.org> (Paulo J. Matos's message of "Fri, 18 Mar 2011 13:39:23 +0000")
"Paulo J. Matos" <pocmatos@gmail.com> writes:
>> Without splitting HI the moves will disappear, try -fno-split-wide-types.
>>
>
> It does work! It's enabled by -O1, maybe it should be disabled by -Os
> if it improves the code size consistently.
-fsplit-wide-types is an improvement on most targets, in which ints and
pointers have the size UNITS_PER_WORD. On AVR that appears not to be
the case, and it seems possible that AVR should set
flag_split_wide_types to 0 in TARGET_OPTION_OPTIMIZATION_TABLE.
Ian
next prev parent reply other threads:[~2011-03-18 14:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-18 8:48 Paulo J. Matos
2011-03-18 10:08 ` WANG.Jiong
2011-03-18 10:15 ` Paulo J. Matos
2011-03-18 12:11 ` David Brown
2011-03-18 13:37 ` Paulo J. Matos
2011-03-18 13:26 ` Georg-Johann Lay
2011-03-18 13:40 ` Paulo J. Matos
2011-03-18 14:20 ` Ian Lance Taylor [this message]
2011-03-18 14:50 ` Paulo J. Matos
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