From: Daniel Henrique Barboza <danielhb413@gmail.com>
To: "Víctor Colombo" <victor.colombo@eldorado.org.br>,
qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: clg@kaod.org, david@gibson.dropbear.id.au, groug@kaod.org,
richard.henderson@linaro.org, matheus.ferst@eldorado.org.br,
lucas.araujo@eldorado.org.br, leandro.lupori@eldorado.org.br,
lucas.coutinho@eldorado.org.br
Subject: Re: [PATCH 05/19] target/ppc: Zero second doubleword for VSX madd instructions
Date: Mon, 5 Sep 2022 15:23:43 -0300 [thread overview]
Message-ID: <0e0791b1-25a6-44c7-375a-baf7c3e80d8b@gmail.com> (raw)
In-Reply-To: <20220901131756.26060-6-victor.colombo@eldorado.org.br>
On 9/1/22 10:17, Víctor Colombo wrote:
> In 205eb5a89e we updated most VSX instructions to zero the
> second doubleword, as is requested by PowerISA since v3.1.
> However, VSX_MADD helper was left behind unchanged, while it
> is also affected and should be fixed as well.
>
> This patch applies the fix for MADD instructions.
>
> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br>
> ---
In this case it's good to add a Fixes tag:
Fixes: 205eb5a89e ("target/ppc: Change VSX instructions behavior to fill with zeros")
> target/ppc/fpu_helper.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
>
> diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
> index 7ab6beadad..da79c64eca 100644
> --- a/target/ppc/fpu_helper.c
> +++ b/target/ppc/fpu_helper.c
> @@ -2178,7 +2178,7 @@ VSX_TSQRT(xvtsqrtsp, 4, float32, VsrW(i), -126, 23)
> void helper_##op(CPUPPCState *env, ppc_vsr_t *xt, \
> ppc_vsr_t *s1, ppc_vsr_t *s2, ppc_vsr_t *s3) \
> { \
> - ppc_vsr_t t = *xt; \
> + ppc_vsr_t t = { }; \
> int i; \
> \
> helper_reset_fpstatus(env); \
next prev parent reply other threads:[~2022-09-05 18:36 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-01 13:17 [PATCH 00/19] Multiple ppc instructions fixes Víctor Colombo
2022-09-01 13:17 ` [PATCH 01/19] target/ppc: Remove extra space from s128 field in ppc_vsr_t Víctor Colombo
2022-09-05 13:17 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 02/19] target/ppc: Remove unused xer_* macros Víctor Colombo
2022-09-05 13:58 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 03/19] target/ppc: Zero second doubleword in DFP instructions Víctor Colombo
2022-09-05 18:19 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 04/19] target/ppc: Set result to QNaN for DENBCD when VXCVI occurs Víctor Colombo
2022-09-05 18:21 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 05/19] target/ppc: Zero second doubleword for VSX madd instructions Víctor Colombo
2022-09-05 18:23 ` Daniel Henrique Barboza [this message]
2022-09-01 13:17 ` [PATCH 06/19] target/ppc: Set OV32 when OV is set Víctor Colombo
2022-09-05 18:25 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 07/19] target/ppc: Zero second doubleword of VSR registers for FPR insns Víctor Colombo
2022-09-05 18:26 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 08/19] target/ppc: Clear fpstatus flags on VSX_CVT_INT_TO_FP_VECTOR Víctor Colombo
2022-09-05 18:35 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 09/19] target/ppc: Clear fpstatus flags on VSX_CVT_INT_TO_FP Víctor Colombo
2022-09-01 13:17 ` [PATCH 10/19] target/ppc: Clear fpstatus flags on VSX_CVT_FP_TO_FP Víctor Colombo
2022-09-05 18:32 ` Daniel Henrique Barboza
2022-09-01 13:17 ` [PATCH 11/19] target/ppc: Clear fpstatus flags on VSX_CVT_FP_TO_INT_VECTOR Víctor Colombo
2022-09-01 13:17 ` [PATCH 12/19] target/ppc: Clear fpstatus flags on VSX_CVT_FP_TO_INT2 Víctor Colombo
2022-09-01 13:17 ` [PATCH 13/19] target/ppc: Clear fpstatus flags on VSX_CVT_FP_TO_INT Víctor Colombo
2022-09-01 13:17 ` [PATCH 14/19] target/ppc: Clear fpstatus flags on VSX_CVT_FP_TO_FP_HP Víctor Colombo
2022-09-01 13:17 ` [PATCH 15/19] target/ppc: Clear fpstatus flags on VSX_CVT_FP_TO_FP_VECTOR Víctor Colombo
2022-09-01 13:17 ` [PATCH 16/19] target/ppc: Clear fpstatus flags for xscvqpdp Víctor Colombo
2022-09-01 13:17 ` [PATCH 17/19] target/ppc: Clear fpstatus flags for xscvdpsp[n] Víctor Colombo
2022-09-01 13:17 ` [PATCH 18/19] target/ppc: Clear fpstatus flags on VSX_CMP Víctor Colombo
2022-09-05 18:41 ` Daniel Henrique Barboza
2022-09-05 18:58 ` Víctor Colombo
2022-09-01 13:17 ` [PATCH 19/19] target/ppc: Clear fpstatus flags on VSX_ROUND Víctor Colombo
2022-09-05 18:33 ` Daniel Henrique Barboza
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