All of lore.kernel.org
 help / color / mirror / Atom feed
From: Richard Henderson <rth@twiddle.net>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, "Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: [Qemu-devel] [PULL 12/14] target/alpha: optimize gen_cvtlq() using deposit op
Date: Tue, 18 Jul 2017 18:57:20 -1000	[thread overview]
Message-ID: <20170719045722.25492-13-rth@twiddle.net> (raw)
In-Reply-To: <20170719045722.25492-1-rth@twiddle.net>

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170718045540.16322-10-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 target/alpha/translate.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index 232af9e..2bffbae 100644
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -756,11 +756,9 @@ static void gen_cvtlq(TCGv vc, TCGv vb)
 
     /* The arithmetic right shift here, plus the sign-extended mask below
        yields a sign-extended result without an explicit ext32s_i64.  */
-    tcg_gen_sari_i64(tmp, vb, 32);
-    tcg_gen_shri_i64(vc, vb, 29);
-    tcg_gen_andi_i64(tmp, tmp, (int32_t)0xc0000000);
-    tcg_gen_andi_i64(vc, vc, 0x3fffffff);
-    tcg_gen_or_i64(vc, vc, tmp);
+    tcg_gen_shri_i64(tmp, vb, 29);
+    tcg_gen_sari_i64(vc, vb, 32);
+    tcg_gen_deposit_i64(vc, vc, tmp, 0, 30);
 
     tcg_temp_free(tmp);
 }
-- 
2.9.4

  parent reply	other threads:[~2017-07-19  4:58 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-19  4:57 [Qemu-devel] [PULL 00/14] tcg-next patch queue Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 01/14] tcg/mips: reserve a register for the guest_base Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 02/14] util/cacheinfo: Add missing include for ppc linux Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 03/14] tcg: Expand glue macros before stringifying helper names Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 04/14] coccinelle: ignore ASTs pre-parsed cached C files Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 05/14] coccinelle: add a script to optimize tcg op using tcg_gen_extract() Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 06/14] target/arm: Optimize aarch64 rev16 Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 07/14] target/arm: optimize aarch32 rev16 Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 08/14] target/m68k: optimize bcd_flags() using extract op Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 09/14] target/ppc: optimize various functions " Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 10/14] target/sparc: " Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 11/14] target/sparc: optimize gen_op_mulscc() using deposit op Richard Henderson
2017-07-19  4:57 ` Richard Henderson [this message]
2017-07-19  4:57 ` [Qemu-devel] [PULL 13/14] tcg/tci: enable bswap16_i64 Richard Henderson
2017-07-19  4:57 ` [Qemu-devel] [PULL 14/14] tcg: Pass generic CPUState to gen_intermediate_code() Richard Henderson
2017-07-19  6:06 ` [Qemu-devel] [PULL 00/14] tcg-next patch queue no-reply
2017-07-19 19:45 ` Peter Maydell
2017-07-19 20:33   ` Philippe Mathieu-Daudé
2017-07-19 21:36     ` Richard Henderson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170719045722.25492-13-rth@twiddle.net \
    --to=rth@twiddle.net \
    --cc=f4bug@amsat.org \
    --cc=peter.maydell@linaro.org \
    --cc=qemu-devel@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.