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Re: [Qemu-devel] [PATCH 00/16] minially change gen_intermediate_code_int
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From: |
li guang |
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Subject: |
Re: [Qemu-devel] [PATCH 00/16] minially change gen_intermediate_code_internal function |
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Date: |
Thu, 11 Apr 2013 13:42:32 +0800 |
Oh, sorry,
minially -> minimally
在 2013-04-11四的 11:41 +0800，li guang写道：
> here are instructions in the finial qemu-system-x86
> before and after my chanage, you can easily find a
> redundant 'addl' was removed
>
> this patch-set is v2 of previous 'translate: cleanup
> gen_intermediate_code_internal patch'
>
> v2: Keep variable 'num_insns' initailization
> spotted by 陳韋任 (Wei-Ren Chen) <address@hidden>
>
>
> before change:
>
> 38c415: 3b 45 d4 cmp -0x2c(%ebp),%eax
> 38c418: 7d 23 jge 38c43d
> <gen_intermediate_code_internal+0x58f>
> ------------------------------------------------------------------
> 38c41a: 83 45 d0 01 addl $0x1,-0x30(%ebp)
> ------------------------------------------------------------------
> 38c41e: eb 15 jmp 38c435
> <gen_intermediate_code_internal+0x587>
> 38c420: 8b 45 d0 mov -0x30(%ebp),%eax
> 38c423: 8b 93 48 15 00 00 mov 0x1548(%ebx),%edx
> 38c429: c6 84 02 a8 0e 01 00 movb $0x0,0x10ea8(%edx,%eax,1)
> 38c430: 00
> 38c431: 83 45 d0 01 addl $0x1,-0x30(%ebp)
> 38c435: 8b 45 d0 mov -0x30(%ebp),%eax
> 38c438: 3b 45 d4 cmp -0x2c(%ebp),%eax
> 38c43b: 7c e3 jl 38c420
> <gen_intermediate_code_internal+0x572>
>
>
> after change:
>
> 38c415: 3b 45 d4 cmp -0x2c(%ebp),%eax
> 38c418: 7d 1f jge 38c439
> <gen_intermediate_code_internal+0x58b>
> 38c41a: eb 11 jmp 38c42d
> <gen_intermediate_code_internal+0x57f>
> 38c41c: 8b 45 d0 mov -0x30(%ebp),%eax
> 38c41f: 8b 93 48 15 00 00 mov 0x1548(%ebx),%edx
> 38c425: c6 84 02 a8 0e 01 00 movb $0x0,0x10ea8(%edx,%eax,1)
> 38c42c: 00
> 38c42d: 83 45 d0 01 addl $0x1,-0x30(%ebp)
> 38c431: 8b 45 d0 mov -0x30(%ebp),%eax
> 38c434: 3b 45 d4 cmp -0x2c(%ebp),%eax
> 38c437: 7c e3 jl 38c41c
> <gen_intermediate_code_internal+0x56e>
>
>
>