From: Richard Henderson <richard.henderson@linaro.org>
To: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
qemu-devel@nongnu.org, qemu-ppc@nongnu.org,
david@gibson.dropbear.id.au, rth@twiddle.net, gkurz@kaod.org
Subject: Re: [Qemu-devel] [PATCH v2 02/15] target/ppc: remove getVSR()/putVSR() from mem_helper.c
Date: Wed, 12 Jun 2019 12:47:59 -0700 [thread overview]
Message-ID: <69cdfc94-c56f-1e72-8b84-311e2a820087@linaro.org> (raw)
In-Reply-To: <20190602110903.3431-3-mark.cave-ayland@ilande.co.uk>
On 6/2/19 4:08 AM, Mark Cave-Ayland wrote:
> - getVSR(xt_num, &xt, env); \
> + \
> nb = (nb >= 16) ? 16 : nb; \
> if (msr_le && !lj) { \
> for (i = 16; i > 16 - nb; i--) { \
> - cpu_stb_data_ra(env, addr, xt.VsrB(i - 1), GETPC()); \
> + cpu_stb_data_ra(env, addr, t.VsrB(i - 1), GETPC()); \
> addr = addr_add(env, addr, 1); \
> } \
> } else { \
> for (i = 0; i < nb; i++) { \
> - cpu_stb_data_ra(env, addr, xt.VsrB(i), GETPC()); \
> + cpu_stb_data_ra(env, addr, t.VsrB(i), GETPC()) ; \
> addr = addr_add(env, addr, 1); \
> } \
> } \
> + *xt = t; \
Do not write back stores.
Actually, in this case there's no reason to copy t = *xt. Just store directly
from xt->VsrB(i).
r~
next prev parent reply other threads:[~2019-06-12 20:03 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-02 11:08 [Qemu-devel] [PATCH v2 00/15] target/ppc: remove getVSR()/putVSR() and further tidy-up Mark Cave-Ayland
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 01/15] target/ppc: remove getVSR()/putVSR() from fpu_helper.c Mark Cave-Ayland
2019-06-12 19:45 ` Richard Henderson
2019-06-16 8:01 ` Mark Cave-Ayland
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 02/15] target/ppc: remove getVSR()/putVSR() from mem_helper.c Mark Cave-Ayland
2019-06-12 1:04 ` David Gibson
2019-06-16 7:40 ` Mark Cave-Ayland
2019-06-12 19:47 ` Richard Henderson [this message]
2019-06-16 7:57 ` Mark Cave-Ayland
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 03/15] target/ppc: remove getVSR()/putVSR() from int_helper.c Mark Cave-Ayland
2019-06-12 19:49 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 04/15] target/ppc: introduce separate VSX_CMP macro for xvcmp* instructions Mark Cave-Ayland
2019-06-12 1:52 ` David Gibson
2019-06-12 4:22 ` Richard Henderson
2019-06-12 5:16 ` David Gibson
2019-06-12 15:58 ` Richard Henderson
2019-06-12 19:59 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 05/15] target/ppc: introduce GEN_VSX_HELPER_X3 macro to fpu_helper.c Mark Cave-Ayland
2019-06-12 20:02 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 06/15] target/ppc: introduce separate generator and helper for xscvqpdp Mark Cave-Ayland
2019-06-12 20:04 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 07/15] target/ppc: introduce GEN_VSX_HELPER_X2 macro to fpu_helper.c Mark Cave-Ayland
2019-06-12 20:05 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 08/15] target/ppc: introduce GEN_VSX_HELPER_X2_AB " Mark Cave-Ayland
2019-06-12 20:06 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 09/15] target/ppc: introduce GEN_VSX_HELPER_X1 " Mark Cave-Ayland
2019-06-13 3:28 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 10/15] target/ppc: introduce GEN_VSX_HELPER_R3 " Mark Cave-Ayland
2019-06-13 3:29 ` Richard Henderson
2019-06-02 11:08 ` [Qemu-devel] [PATCH v2 11/15] target/ppc: introduce GEN_VSX_HELPER_R2 " Mark Cave-Ayland
2019-06-13 3:31 ` Richard Henderson
2019-06-02 11:09 ` [Qemu-devel] [PATCH v2 12/15] target/ppc: introduce GEN_VSX_HELPER_R2_AB " Mark Cave-Ayland
2019-06-02 11:09 ` [Qemu-devel] [PATCH v2 13/15] target/ppc: decode target register in VSX_VECTOR_LOAD_STORE_LENGTH at translation time Mark Cave-Ayland
2019-06-02 11:09 ` [Qemu-devel] [PATCH v2 14/15] target/ppc: decode target register in VSX_EXTRACT_INSERT " Mark Cave-Ayland
2019-06-02 11:09 ` [Qemu-devel] [PATCH v2 15/15] target/ppc: improve VSX_FMADD with new GEN_VSX_HELPER_VSX_MADD macro Mark Cave-Ayland
2019-06-13 3:41 ` Richard Henderson
2019-06-03 10:48 ` [Qemu-devel] [PATCH v2 00/15] target/ppc: remove getVSR()/putVSR() and further tidy-up no-reply
2019-06-04 18:48 ` Mark Cave-Ayland
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