From: Richard Henderson <rth@twiddle.net>
To: Kirill Batuzov <batuzovk@ispras.ru>
Cc: mj.mccormack@samsung.com, qemu-devel@nongnu.org, zhur@ispras.ru
Subject: Re: [Qemu-devel] [PATCH 6/6] Do constant folding for unary operations.
Date: Fri, 20 May 2011 11:39:11 -0700 [thread overview]
Message-ID: <4DD6B54F.1010903@twiddle.net> (raw)
In-Reply-To: <e6ddf55b6f4093c3333a239c86203e801189e428.1305889001.git.batuzovk@ispras.ru>
On 05/20/2011 05:39 AM, Kirill Batuzov wrote:
> + case INDEX_op_ext8s_i64:
> + return x & (1 << 7) ? x | ~0xffULL : x & 0xff;
> +
> + case INDEX_op_ext16s_i64:
> + return x & (1 << 15) ? x | ~0xffffULL : x & 0xffff;
> +
> + case INDEX_op_ext32s_i64:
> + return x & (1U << 31) ? x | ~0xffffffffULL : x & 0xffffffff;
Likewise for letting the compiler help with appropriate casts.
r~
next prev parent reply other threads:[~2011-05-20 18:39 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-20 12:39 [Qemu-devel] [PATCH 0/6] Implement constant folding and copy propagation in TCG Kirill Batuzov
2011-05-20 12:39 ` [Qemu-devel] [PATCH 1/6] Add TCG optimizations stub Kirill Batuzov
2011-05-20 18:12 ` Richard Henderson
2011-05-20 18:33 ` Richard Henderson
2011-05-20 12:39 ` [Qemu-devel] [PATCH 2/6] Add copy and constant propagation Kirill Batuzov
2011-05-20 18:22 ` Richard Henderson
2011-05-20 18:46 ` Paolo Bonzini
2011-05-20 19:41 ` Aurelien Jarno
2011-05-20 12:39 ` [Qemu-devel] [PATCH 3/6] Do constant folding for basic arithmetic operations Kirill Batuzov
2011-05-20 12:39 ` [Qemu-devel] [PATCH 4/6] Do constant folding for boolean operations Kirill Batuzov
2011-05-20 18:45 ` Richard Henderson
2011-05-20 12:39 ` [Qemu-devel] [PATCH 5/6] Do constant folding for shift operations Kirill Batuzov
2011-05-20 18:37 ` Richard Henderson
2011-05-26 12:36 ` Kirill Batuzov
2011-05-26 13:56 ` Richard Henderson
2011-05-26 19:14 ` Blue Swirl
2011-05-26 20:10 ` Richard Henderson
2011-05-26 20:25 ` Blue Swirl
2011-05-26 21:14 ` Richard Henderson
2011-05-27 15:41 ` Jamie Lokier
2011-05-27 17:07 ` Blue Swirl
2011-05-27 19:54 ` Richard Henderson
2011-05-27 7:09 ` Paolo Bonzini
2011-05-20 12:39 ` [Qemu-devel] [PATCH 6/6] Do constant folding for unary operations Kirill Batuzov
2011-05-20 18:39 ` Richard Henderson [this message]
2011-05-20 17:50 ` [Qemu-devel] [PATCH 0/6] Implement constant folding and copy propagation in TCG Richard Henderson
2011-05-20 19:37 ` Aurelien Jarno
2011-05-20 23:31 ` Andreas Färber
2011-05-21 9:37 ` Laurent Desnogues
2011-05-21 10:46 ` Aurelien Jarno
2011-05-21 17:53 ` Kirill Batuzov
2011-05-20 19:35 ` Aurelien Jarno
2011-05-21 12:47 ` Dmitry Zhurikhin
2011-05-21 12:48 ` Aurelien Jarno
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