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| From: | Richard Henderson |
| Subject: | Re: [Qemu-devel] [PATCH 10/21] memory: make section size a 128-bit integer |
| Date: | Fri, 31 May 2013 15:18:39 -0700 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6 |
On 05/30/2013 02:16 PM, Paolo Bonzini wrote:
> +static inline Int128 int128_rshift(Int128 a, int n)
> +{
> + return (Int128) { (a.lo >> n) | (a.hi << (64 - n)), (a.hi >> n) };
> +}
Produces wrong results for n == 0, since (a.hi << 64) is undefined.
r~
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