From: Max Filippov <jcmvbkbc@gmail.com>
Date: Thu, 20 Sep 2012 22:59:50 +0000 (+0400)
Subject: target-xtensa: don't emit extra tcg_gen_goto_tb
X-Git-Tag: v1.2.1~194
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cc10061717877fc65b5c734c43c55f471913ce92;p=thirdparty%2Fqemu.git

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>
---

diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index 7a1c528fc82..b6643eb8183 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;