[PATCH v4 19/27] target/s390x: Introduce help_goto_indirect

[Richard Henderson]

Add a small helper to handle unconditional indirect jumps.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/s390x/tcg/translate.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index 6757a0f44f..afa5f56fc4 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -1205,6 +1205,13 @@ static DisasJumpType help_goto_direct(DisasContext *s, 
int64_t disp)
     }
 }
 
+static DisasJumpType help_goto_indirect(DisasContext *s, TCGv_i64 dest)
+{
+    tcg_gen_mov_i64(psw_addr, dest);
+    per_branch(s, false);
+    return DISAS_PC_UPDATED;
+}
+
 static DisasJumpType help_branch(DisasContext *s, DisasCompare *c,
                                  bool is_imm, int imm, TCGv_i64 cdest)
 {
@@ -1235,9 +1242,7 @@ static DisasJumpType help_branch(DisasContext *s, 
DisasCompare *c,
             goto egress;
         }
         if (c->cond == TCG_COND_ALWAYS) {
-            tcg_gen_mov_i64(psw_addr, cdest);
-            per_branch(s, false);
-            ret = DISAS_PC_UPDATED;
+            ret = help_goto_indirect(s, cdest);
             goto egress;
         }
     }
@@ -1560,9 +1565,7 @@ static DisasJumpType op_bas(DisasContext *s, DisasOps *o)
 {
     pc_to_link_info(o->out, s);
     if (o->in2) {
-        tcg_gen_mov_i64(psw_addr, o->in2);
-        per_branch(s, false);
-        return DISAS_PC_UPDATED;
+        return help_goto_indirect(s, o->in2);
     } else {
         return DISAS_NEXT;
     }
@@ -1595,9 +1598,7 @@ static DisasJumpType op_bal(DisasContext *s, DisasOps *o)
 {
     save_link_info(s, o);
     if (o->in2) {
-        tcg_gen_mov_i64(psw_addr, o->in2);
-        per_branch(s, false);
-        return DISAS_PC_UPDATED;
+        return help_goto_indirect(s, o->in2);
     } else {
         return DISAS_NEXT;
     }
-- 
2.34.1