Bug#611249: gcc-4.4: Fix PR44606 concerning powerpcspe architecture

[Sebastian Andrzej Siewior <bigeasy@linutronix.de>]

* David Kuehling | 2011-01-27 11:57:58 [+0100]:

>Hi, the attached .debdiff fixes PR44606 [1], a register-allocation bug
>that (seldomly) miscompiles floating point code in the unofficial
>powerpcspe port [2].
>
>This is a backport of commit 168347 from GCC svn [3].
Thanks for that. We have a few other patches which are part of trunk but
not part of stable branches. So we need to consider those as well or we
brake things what were working.

>The patch modifies debian/rules.patch to only apply the patch on
>powerpcspe, so there should be no side-effects on other architectures. 
Not sure if this is wise. There is an _all package which containts the
patched source. This source is used afaik for gcj. So this would work
for +powerpcspe package but won't work in the official debian package.

>I verified the patch to compile and be effective on a powerpcspe sid
>installation running on a P2020RDB development board.
cool.

>I guess the same patch should go into gcc-4.3 as well, going to post a
>corresponding bug report in the next days.
No, I'm dropping gcc-4.3. There is little need in keeping it as all
software compiles with 4.4+

>cheers,
>
>David

Sebastian