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Re: [Qemu-devel] Shifts, ppc[64], xtensa

From: Richard Henderson
Subject: Re: [Qemu-devel] Shifts, ppc[64], xtensa
Date: Tue, 18 Sep 2012 17:10:47 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120828 Thunderbird/15.0 
On 09/18/2012 12:52 PM, malc wrote:
>      case INDEX_op_shl_i32:
>          if (const_args[2]) {
> +            if (args[2] > 31) {
> +                tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
> +                tcg_out32 (s, SLW | SAB (args[1], args[0], 0));
> +            }

What's this bit for?

AFAIK all you should need are the added & 31 below.


r~
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