[PATCH v4 17/27] target/s390x: Introduce per_enabled

[Richard Henderson <richard.henderson@linaro.org>]

Hoist the test of FLAG_MASK_PER to a helper.

Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/s390x/tcg/translate.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index d8dad71814..433703b4c9 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -353,12 +353,21 @@ static void update_psw_addr_disp(DisasContext *s, int64_t disp)
     gen_psw_addr_disp(s, psw_addr, disp);
 }
 
+static inline bool per_enabled(DisasContext *s)
+{
+#ifdef CONFIG_USER_ONLY
+    return false;
+#else
+    return unlikely(s->base.tb->flags & FLAG_MASK_PER);
+#endif
+}
+
 static void per_branch(DisasContext *s, bool to_next)
 {
 #ifndef CONFIG_USER_ONLY
     gen_psw_addr_disp(s, gbea, 0);
 
-    if (s->base.tb->flags & FLAG_MASK_PER) {
+    if (per_enabled(s)) {
         if (to_next) {
             TCGv_i64 next_pc = tcg_temp_new_i64();
 
@@ -376,7 +385,7 @@ static void per_branch_cond(DisasContext *s, TCGCond cond,
                             TCGv_i64 arg1, TCGv_i64 arg2)
 {
 #ifndef CONFIG_USER_ONLY
-    if (s->base.tb->flags & FLAG_MASK_PER) {
+    if (per_enabled(s)) {
         TCGLabel *lab = gen_new_label();
         tcg_gen_brcond_i64(tcg_invert_cond(cond), arg1, arg2, lab);
 
@@ -680,7 +689,7 @@ static void gen_op_calc_cc(DisasContext *s)
 
 static bool use_goto_tb(DisasContext *s, uint64_t dest)
 {
-    if (unlikely(s->base.tb->flags & FLAG_MASK_PER)) {
+    if (per_enabled(s)) {
         return false;
     }
     return translator_use_goto_tb(&s->base, dest);
@@ -4506,7 +4515,7 @@ static DisasJumpType op_stura(DisasContext *s, DisasOps *o)
 {
     tcg_gen_qemu_st_tl(o->in1, o->in2, MMU_REAL_IDX, s->insn->data);
 
-    if (s->base.tb->flags & FLAG_MASK_PER) {
+    if (per_enabled(s)) {
         update_psw_addr_disp(s, 0);
         gen_helper_per_store_real(cpu_env);
     }
@@ -6413,7 +6422,7 @@ static DisasJumpType translate_one(CPUS390XState *env, DisasContext *s)
     }
 
 #ifndef CONFIG_USER_ONLY
-    if (s->base.tb->flags & FLAG_MASK_PER) {
+    if (per_enabled(s)) {
         TCGv_i64 addr = tcg_temp_new_i64();
 
         gen_psw_addr_disp(s, addr, 0);
@@ -6544,7 +6553,7 @@ static DisasJumpType translate_one(CPUS390XState *env, DisasContext *s)
     }
 
 #ifndef CONFIG_USER_ONLY
-    if (s->base.tb->flags & FLAG_MASK_PER) {
+    if (per_enabled(s)) {
         /* An exception might be triggered, save PSW if not already done.  */
         if (ret == DISAS_NEXT || ret == DISAS_TOO_MANY) {
             update_psw_addr_disp(s, s->ilen);
@@ -6569,7 +6578,7 @@ static void s390x_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
 
     dc->cc_op = CC_OP_DYNAMIC;
     dc->ex_value = dc->base.tb->cs_base;
-    dc->exit_to_mainloop = (dc->base.tb->flags & FLAG_MASK_PER) || dc->ex_value;
+    dc->exit_to_mainloop = per_enabled(dc) || dc->ex_value;
 }
 
 static void s390x_tr_tb_start(DisasContextBase *db, CPUState *cs)
-- 
2.34.1