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authorRichard Henderson <rth@twiddle.net>2017-04-30 13:32:10 +0200
committerRichard Henderson <rth@twiddle.net>2017-06-05 09:25:42 -0700
commit6350001e831defb5ede5337baaa7dc4a730c1508 (patch)
treedd05a1342d59dfa40bd0cbf956a36d493f4733b4
parent5786e0683c4f8170dd05a550814b8809d8ae6d86 (diff)
downloadfocaccia-qemu-6350001e831defb5ede5337baaa7dc4a730c1508.tar.gz
focaccia-qemu-6350001e831defb5ede5337baaa7dc4a730c1508.zip
target/s390: Use tcg_gen_lookup_and_goto_ptr
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--target/s390x/translate.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 4c48c593cd..628fb8685d 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -608,11 +608,16 @@ static void gen_op_calc_cc(DisasContext *s)
     set_cc_static(s);
 }
 
-static int use_goto_tb(DisasContext *s, uint64_t dest)
+static bool use_exit_tb(DisasContext *s)
 {
-    if (unlikely(s->singlestep_enabled) ||
-        (s->tb->cflags & CF_LAST_IO) ||
-        (s->tb->flags & FLAG_MASK_PER)) {
+    return (s->singlestep_enabled ||
+            (s->tb->cflags & CF_LAST_IO) ||
+            (s->tb->flags & FLAG_MASK_PER));
+}
+
+static bool use_goto_tb(DisasContext *s, uint64_t dest)
+{
+    if (unlikely(use_exit_tb(s))) {
         return false;
     }
 #ifndef CONFIG_USER_ONLY
@@ -5461,8 +5466,10 @@ void gen_intermediate_code(CPUS390XState *env, struct TranslationBlock *tb)
         /* Exit the TB, either by raising a debug exception or by return.  */
         if (do_debug) {
             gen_exception(EXCP_DEBUG);
-        } else {
+        } else if (use_exit_tb(&dc)) {
             tcg_gen_exit_tb(0);
+        } else {
+            tcg_gen_lookup_and_goto_ptr(psw_addr);
         }
         break;
     default: