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Re: [Qemu-devel] [PATCH 0/2] simplify global register save/restore
From: |
Paul Brook |
Subject: |
Re: [Qemu-devel] [PATCH 0/2] simplify global register save/restore |
Date: |
Fri, 26 Feb 2010 11:30:30 +0000 |
User-agent: |
KMail/1.12.4 (Linux/2.6.32-trunk-amd64; KDE/4.3.4; x86_64; ; ) |
> Since b567b38 (target-arm: remove T0 and T1, 2009-10-16) the only global
> register that is actually used is AREG0, so the complexity of
> hostregs_helper.h is unwarranted.
>
> Let's just say that env should be the only global register. AREG1 and
> AREG2 in principle could still be used to work around bad register
> allocation in GCC, so I'm leaving them in dyngen-exec.h.
I think AREG[12] should be removed too. If we aren't saving them then they
can't be safely used.
Paul
- [Qemu-devel] [PATCH v2 2/2] get rid of hostregs_helper.h, (continued)
- [Qemu-devel] [PATCH v2 2/2] get rid of hostregs_helper.h, Paolo Bonzini, 2010/02/18
- [Qemu-devel] Re: [PATCH v2 2/2] get rid of hostregs_helper.h, Blue Swirl, 2010/02/18
- [Qemu-devel] Re: [PATCH v2 2/2] get rid of hostregs_helper.h, Michael S. Tsirkin, 2010/02/25
- [Qemu-devel] Re: [PATCH v2 2/2] get rid of hostregs_helper.h, Paolo Bonzini, 2010/02/25
- [Qemu-devel] Re: [PATCH v2 2/2] get rid of hostregs_helper.h, Michael S. Tsirkin, 2010/02/25
- [Qemu-devel] Re: [PATCH v2 2/2] get rid of hostregs_helper.h, Paolo Bonzini, 2010/02/25
Re: [Qemu-devel] [PATCH 0/2] simplify global register save/restore, Blue Swirl, 2010/02/13
Re: [Qemu-devel] [PATCH 0/2] simplify global register save/restore,
Paul Brook <=