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Re: [Qemu-devel] [PATCH v2 for-1.1 4/4] tcg/ppc: Fix CONFIG_TCG_PASS_ARE
From: |
Andreas Färber |
Subject: |
Re: [Qemu-devel] [PATCH v2 for-1.1 4/4] tcg/ppc: Fix CONFIG_TCG_PASS_AREG0 mode |
Date: |
Wed, 09 May 2012 03:03:25 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120421 Thunderbird/12.0 |
Am 09.05.2012 02:43, schrieb malc:
> On Wed, 9 May 2012, Andreas F?rber wrote:
>
>> Adjust the tcg_out_qemu_{ld,st}() slow paths to pass AREG0 in r3,
>> based on patches by malc.
>>
>> Also adjust the registers clobbered, based on patch by Alex.
>
> Alexander, my head is splitting now, so i can not calculate things inside
> it, aren't we reserving skipped registers in some circumstances?
Yes, we are. The original code did, and Alex found it too complicated
for the immediate build fix when I suggested it. As you can see, I've
already split up into AREG0 and non #ifdef paths because it got too
unreadable when having one line with multiple or'ed #if conditions.
Optimizations we can still do when the build is restored.
Andreas
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- [Qemu-devel] [PATCH v2 for-1.1 0/4] tcg/ppc: AREG0 support and Darwin fixes, Andreas Färber, 2012/05/08
- [Qemu-devel] [PATCH v2 for-1.1 2/4] tcg/ppc: Don't hardcode register numbers, Andreas Färber, 2012/05/08
- [Qemu-devel] [PATCH v2 for-1.1 3/4] tcg/ppc: Clobber r5 for 64-bit qemu_ld, Andreas Färber, 2012/05/08
- [Qemu-devel] [PATCH v2 for-1.1 1/4] tcg/ppc: Do not overwrite lower address word on Darwin and AIX, Andreas Färber, 2012/05/08
- [Qemu-devel] [PATCH v2 for-1.1 4/4] tcg/ppc: Fix CONFIG_TCG_PASS_AREG0 mode, Andreas Färber, 2012/05/08
- Re: [Qemu-devel] [PATCH v2 for-1.1 0/4] tcg/ppc: AREG0 support and Darwin fixes, malc, 2012/05/08