qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: laurent@vivier.eu
Subject: [Qemu-devel] [PATCH 4/9] target/m68k: Use lookup_and_goto_tb for DISAS_JUMP
Date: Fri, 11 May 2018 21:59:45 -0700	[thread overview]
Message-ID: <20180512045950.12386-7-richard.henderson@linaro.org> (raw)
In-Reply-To: <20180512045950.12386-1-richard.henderson@linaro.org>

These are all indirect or out-of-page direct jumps.
We can indirectly chain to the next TB without going
back to the main loop.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/m68k/translate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index c795d8e64f..80712ed0af 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -6139,8 +6139,11 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb)
             update_cc_op(dc);
             gen_jmp_tb(dc, 0, dc->pc);
             break;
-        default:
         case DISAS_JUMP:
+            /* We updated CC_OP and PC in gen_jmp/gen_jmp_im.  */
+            tcg_gen_lookup_and_goto_ptr();
+            break;
+        default:
         case DISAS_UPDATE:
             update_cc_op(dc);
             /* indicate that the hash table must be used to find the next TB */
-- 
2.17.0

  parent reply	other threads:[~2018-05-12  5:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-12  4:59 [Qemu-devel] [PATCH 0/9] target/m68k: Convert to TranslatorOps Richard Henderson
2018-05-12  4:59 ` [Qemu-devel] [PATCH 1/2] hw/virtio: Fix brace Werror with clang 6.0.0 Richard Henderson
2018-05-12  4:59 ` [Qemu-devel] [PATCH 1/9] target/m68k: Use DISAS_NORETURN for exceptions Richard Henderson
2018-05-12  4:59 ` [Qemu-devel] [PATCH 2/9] target/m68k: Replace DISAS_TB_JUMP with DISAS_NORETURN Richard Henderson
2018-05-12  4:59 ` [Qemu-devel] [PATCH 2/2] target/s390x: Fix brace Werror with clang 6.0.0 Richard Henderson
2018-05-12  7:56   ` David Hildenbrand
2018-05-14 10:16   ` Cornelia Huck
2018-05-12  4:59 ` [Qemu-devel] [PATCH 3/9] target/m68k: Remove DISAS_JUMP_NEXT as unused Richard Henderson
2018-05-12  4:59 ` Richard Henderson [this message]
  -- strict thread matches above, loose matches on Subject: below --
2018-05-12  5:02 [Qemu-devel] [PATCH v1.1 0/9] target/m68k: Convert to TranslatorOps Richard Henderson
2018-05-12  5:02 ` [Qemu-devel] [PATCH 4/9] target/m68k: Use lookup_and_goto_tb for DISAS_JUMP 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=20180512045950.12386-7-richard.henderson@linaro.org \
    --to=richard.henderson@linaro.org \
    --cc=laurent@vivier.eu \
    --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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).