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Re: [Qemu-devel] [PATCH 13/13] tcg: rework TCG ops flags
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH 13/13] tcg: rework TCG ops flags |
Date: |
Thu, 27 Sep 2012 16:11:15 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120911 Thunderbird/15.0.1 |
On 09/27/2012 04:08 PM, Aurelien Jarno wrote:
>> > In which case, because the non-qemu store insns cannot raise exceptions,
>> > there ought to be exactly zero instances of TCG_OPF_SIDE_EFFECTS remaining.
>> > At which point we simply ought to remove it.
>> >
> I don't understand, the qemu/load store still need to keep this
> TCG_OPF_SIDE_EFFECTS. Even a load to a dead output argument might
> trigger a TLB miss exception, and thus should be fixed.
Ah, true.
r~
[Qemu-devel] [PATCH 11/13] tcg: sync globals for pure helpers instead of saving them, Aurelien Jarno, 2012/09/27
[Qemu-devel] [PATCH 09/13] tcg: start with local temps in TEMP_VAL_MEM state, Aurelien Jarno, 2012/09/27
[Qemu-devel] [PATCH 10/13] tcg: don't explicitely save globals and temps, Aurelien Jarno, 2012/09/27
[Qemu-devel] [PATCH 07/13] tcg: rewrite tcg_reg_alloc_mov(), Aurelien Jarno, 2012/09/27