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List:       qemu-ppc
Subject:    Re: [Qemu-ppc] [Qemu-devel] [PATCH 03/14] target/ppc: remove getVSR()/putVSR() from int_helper.c
From:       Richard Henderson <richard.henderson () linaro ! org>
Date:       2019-04-30 16:32:44
Message-ID: 3df9625c-2d66-82f8-119f-61af3bfc1f86 () linaro ! org
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On 4/28/19 7:38 AM, Mark Cave-Ayland wrote:
>  void helper_xxextractuw(CPUPPCState *env, target_ulong xtn,
>                          target_ulong xbn, uint32_t index)
>  {
> -    ppc_vsr_t xt, xb;
> +    ppc_vsr_t *xt = &env->vsr[xtn];
> +    ppc_vsr_t *xb = &env->vsr[xbn];
>      size_t es = sizeof(uint32_t);
>      uint32_t ext_index;
>      int i;
>  
> -    getVSR(xbn, &xb, env);
> -    memset(&xt, 0, sizeof(xt));
> +    memset(xt, 0, sizeof(ppc_vsr_t));

This fails if xt == xb.

Similarly for xxinsertw.


r~


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