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From: Thiemo Seufer <ths@networkno.de>
To: Eric DeVolder <edevolder@razamicroelectronics.com>
Cc: linux-mips@linux-mips.org
Subject: Re: Differing results from cross and native compilers
Date: Tue, 19 Sep 2006 17:05:13 +0100	[thread overview]
Message-ID: <20060919160513.GD4553@networkno.de> (raw)
In-Reply-To: <2E96546B3C2C8B4CA739323C6058204A0163548B@hq-ex-mb01.razamicroelectronics.com>

Eric DeVolder wrote:
[snip]
> I would have thought that for this simple example I'd get identical
> results. For reasons I have yet to figure out, the cross compiler is
> finding better optimizations than the native, though both are the
> same gcc version. I checked the specs files, and the two are identical
> other than the "cross_compile" setting.

Have you checked (with -v) if the assembler gets the same optimisations
in both cases, and/or (with -save-temps) where in the compile things
start to diverge?


Thiemo

  reply	other threads:[~2006-09-19 16:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-19 15:39 Differing results from cross and native compilers Eric DeVolder
2006-09-19 15:39 ` Eric DeVolder
2006-09-19 16:05 ` Thiemo Seufer [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-09-19 16:57 Eric DeVolder
2006-09-19 16:57 ` Eric DeVolder
2006-09-19 17:16 ` Thiemo Seufer
2006-09-19 17:18 ` David Daney
2006-09-19 23:22 ` Jim Wilson
2006-09-19 17:56 Eric DeVolder
2006-09-19 17:56 ` Eric DeVolder
2006-09-19 21:08 ` Thiemo Seufer
2006-09-21 14:26 Eric DeVolder
2006-09-21 14:26 ` Eric DeVolder
2006-09-21 14:53 Eric DeVolder
2006-09-21 14:53 ` Eric DeVolder

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