From ba9c2acb955f0453ae80077a791a4d1c27b5d6e6 Mon Sep 17 00:00:00 2001

From: Max Filippov <jcmvbkbc@gmail.com>

Date: Fri, 21 Sep 2012 02:59:50 +0400

Subject: [PATCH] target-xtensa: don't emit extra tcg_gen_goto_tb

Unconditional gen_check_loop_end at the end of disas_xtensa_insn

can emit tcg_gen_goto_tb with slot id already used in the TB (e.g. when

TB ends at LEND with a branch).

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

Cc: qemu-stable <qemu-stable@nongnu.org>

Signed-off-by: malc <av1474@comtv.ru>

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

---

 target-xtensa/translate.c | 4 +++-

 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c

index 7a1c528..b6643eb 100644

--- a/target-xtensa/translate.c

+++ b/target-xtensa/translate.c

@@ -2520,7 +2520,9 @@ static void disas_xtensa_insn(DisasContext *dc)

         break;

     }

-    gen_check_loop_end(dc, 0);

+    if (dc->is_jmp == DISAS_NEXT) {

+        gen_check_loop_end(dc, 0);

+    }

     dc->pc = dc->next_pc;

     return;