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Date: Wed, 19 Sep 2012 14:46:55 -0700
From: Richard Henderson <rth@twiddle.net>
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Subject: Re: [Qemu-devel] [PATCH 6/9] tcg/optimize: optimize "op r, a,
 a => movi r, 0"
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To: Aurelien Jarno <aurelien@aurel32.net>
Cc: qemu-devel@nongnu.org

On 09/19/2012 01:00 PM, Aurelien Jarno wrote:
> +        /* Simplify expression for "op r, a, a => movi r, 0" cases */
> +        switch (op) {
> +        CASE_OP_32_64(andc):
> +        CASE_OP_32_64(sub):
> +        CASE_OP_32_64(xor):

For completeness, nand, orc, eqv r, a, a -> -1.

Reviewed-by: Richard Henderson <rth@twiddle.net>


r~