[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host
From: |
Michael Matz |
Subject: |
Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host |
Date: |
Fri, 18 Jan 2008 16:41:19 +0100 (CET) |
Hi,
On Fri, 18 Jan 2008, Johannes Schindelin wrote:
> > Well, I can tell you why, but it doesn't help you: the 3.4.2 compiler
> > has different deficiencies in reload than the 4.x line of compilers.
> > To make the whole thingy work on all compilers trying and testing is
> > required to avoid all these different deficiencies. My patch is
> > partly real bug fixes (the "q" constraint part for instance) and
> > partly changes helping to lessen the register pressure which reload
> > needs to fix (the %ecx thingy for instance). Both of these might
> > expose the bugs in 3.4.2, in which case we need to hack around those
> > as well. That's what I tried to do with the patch from
> > http://article.gmane.org/gmane.comp.emulators.qemu/22762 , but it
> > needs of course testing by someone who actually uses 3.4.2.
>
> I just downloaded it, and tested it on MinGW with 3.4.2, and I still get
> the "can't find register in class `Q_REGS´ while reloading `asm´" error.
Bummer. As a test of theory (I'm not proposing this as patch), can you
see what happens if you make vtmp volatile, i.e. make it look like so ? :
#if DATA_SIZE == 1 || DATA_SIZE == 2
volatile RES_TYPE vtmp = v;
#endif
Bah, remote work-arounding of reload sucks :-)
Ciao,
Michael.
- [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, (continued)
- Message not available
- [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Michael Matz, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Michael Matz, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Michael Matz, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Michael Matz, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Michael Matz, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host,
Michael Matz <=
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Andreas Färber, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Alexander Graf, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/18
- Re: [Qemu-devel] Re: [PATCH 1/5] Fix i386 Host, Alexander Graf, 2008/01/18
- Re: [Qemu-devel] [PATCH 1/5] Fix i386 Host, Alexander Graf, 2008/01/17
- Re: [Qemu-devel] [PATCH 1/5] Fix i386 Host, Johannes Schindelin, 2008/01/17
- Re: [Qemu-devel] [PATCH 1/5] Fix i386 Host, Andreas Färber, 2008/01/17
- Re: [Qemu-devel] [PATCH 1/5] Fix i386 Host, Alexander Graf, 2008/01/17
- Re: [Qemu-devel] [PATCH 1/5] Fix i386 Host, Andreas Färber, 2008/01/17