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Re: [Qemu-devel] [PATCH] tcg: Remove temp_buf
From: |
Blue Swirl |
Subject: |
Re: [Qemu-devel] [PATCH] tcg: Remove temp_buf |
Date: |
Sat, 20 Apr 2013 10:46:52 +0000 |
On Fri, Apr 19, 2013 at 12:18 PM, Andreas Färber <address@hidden> wrote:
> Am 19.04.2013 14:11, schrieb Andreas Färber:
>> Hi,
>>
>> Am 19.04.2013 10:27, schrieb Richard Henderson:
>>> All targets have been converted to allocating space for temporaries
>>> on the stack. No need to allocate space within the CPU_COMMON block.
>>>
>>> Signed-off-by: Richard Henderson <address@hidden>
>>> ---
>>> This depends on my tcg-arm patch set that's still outstanding.
>>
>> My tree still has exactly one user in tcg/arm/, so once that disappears
>> feel free to add my Reviewed-by. Thanks for helping clean this up!
>>
>> One question...
>>
>>>
>>>
>>> r~
>>> ---
>>> include/exec/cpu-defs.h | 2 --
>>> 1 file changed, 2 deletions(-)
>>>
>>> diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h
>>> index d8c64e9..41f5b32 100644
>>> --- a/include/exec/cpu-defs.h
>>> +++ b/include/exec/cpu-defs.h
>>> @@ -152,8 +152,6 @@ typedef struct CPUWatchpoint {
>>> memory was accessed */ \
>>> CPU_COMMON_TLB \
>>> struct TranslationBlock *tb_jmp_cache[TB_JMP_CACHE_SIZE]; \
>>> - /* buffer for temporaries in the code generator */ \
>>> - long temp_buf[CPU_TEMP_BUF_NLONGS]; \
>>
>> Could CPU_TEMP_BUF_NLONGS be removed, too?
>
> More precisely, seeing that all targets actually still use it despite in
> most cases not actually accessing temp_buf, can you rename it to
> TCG_TEMP_STACK_NLONGS and move it to some TCG header as a follow-up please?
Much like this patch?
http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg03086.html
>
> Andreas
>
>>> \
>>> int64_t icount_extra; /* Instructions until next timer event. */ \
>>> /* Number of cycles left, with interrupt flag in high bit. \
>>>
>
> --
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>