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Re: [Qemu-devel] [PATCH for-next 1/8] tcg-i386: Add and use tcg_out64
From: |
Aurelien Jarno |
Subject: |
Re: [Qemu-devel] [PATCH for-next 1/8] tcg-i386: Add and use tcg_out64 |
Date: |
Thu, 15 Aug 2013 17:54:32 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, Aug 05, 2013 at 08:07:18AM -1000, Richard Henderson wrote:
> No point in splitting the write into 32-bit pieces.
>
> Signed-off-by: Richard Henderson <address@hidden>
> ---
> tcg/i386/tcg-target.c | 3 +--
> tcg/tcg.c | 6 ++++++
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
> index 87eeab3..841bd75 100644
> --- a/tcg/i386/tcg-target.c
> +++ b/tcg/i386/tcg-target.c
> @@ -552,8 +552,7 @@ static void tcg_out_movi(TCGContext *s, TCGType type,
> tcg_out32(s, arg);
> } else {
> tcg_out_opc(s, OPC_MOVL_Iv + P_REXW + LOWREGMASK(ret), 0, ret, 0);
> - tcg_out32(s, arg);
> - tcg_out32(s, arg >> 31 >> 1);
> + tcg_out64(s, arg);
> }
> }
>
> diff --git a/tcg/tcg.c b/tcg/tcg.c
> index dac8224..9355b57 100644
> --- a/tcg/tcg.c
> +++ b/tcg/tcg.c
> @@ -131,6 +131,12 @@ static inline void tcg_out32(TCGContext *s, uint32_t v)
> s->code_ptr += 4;
> }
>
> +static inline void tcg_out64(TCGContext *s, uint64_t v)
> +{
> + *(uint64_t *)s->code_ptr = v;
> + s->code_ptr += 8;
> +}
> +
> /* label relocation processing */
>
> static void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type,
Reviewed-by: Aurelien Jarno <address@hidden>
--
Aurelien Jarno GPG: 1024D/F1BCDB73
address@hidden http://www.aurel32.net