diff mbox series

[v3,20/27] target/s390x: Split per_branch

Message ID 20230109200819.3916395-21-richard.henderson@linaro.org
State New
Headers show
Series target/s390x: pc-relative translation blocks | expand

Commit Message

Richard Henderson Jan. 9, 2023, 8:08 p.m. UTC 
Split into per_branch_dest and per_branch_disp, which can be
used for direct and indirect.  In preperation for TARGET_TB_PCREL,
call per_branch_* before indirect branches.

Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/s390x/tcg/translate.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

Comments

Philippe Mathieu-Daudé Feb. 20, 2023, 6:58 p.m. UTC | #1 
On 9/1/23 21:08, Richard Henderson wrote:
> Split into per_branch_dest and per_branch_disp, which can be
> used for direct and indirect.  In preperation for TARGET_TB_PCREL,
> call per_branch_* before indirect branches.
> 
> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>   target/s390x/tcg/translate.c | 30 +++++++++++++++++-------------
>   1 file changed, 17 insertions(+), 13 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff mbox series

Patch

diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index dd3bd9531b..e3855f6e09 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -350,21 +350,25 @@  static inline bool per_enabled(DisasContext *s)
 #endif
 }
 
-static void per_branch(DisasContext *s, bool to_next)
+static void per_branch_dest(DisasContext *s, TCGv_i64 dest)
 {
 #ifndef CONFIG_USER_ONLY
     gen_psw_addr_disp(s, gbea, 0);
-
     if (per_enabled(s)) {
-        if (to_next) {
-            TCGv_i64 next_pc = tcg_temp_new_i64();
+        gen_helper_per_branch(cpu_env, gbea, dest);
+    }
+#endif
+}
 
-            gen_psw_addr_disp(s, next_pc, s->ilen);
-            gen_helper_per_branch(cpu_env, gbea, next_pc);
-            tcg_temp_free_i64(next_pc);
-        } else {
-            gen_helper_per_branch(cpu_env, gbea, psw_addr);
-        }
+static void per_branch_disp(DisasContext *s, int64_t disp)
+{
+#ifndef CONFIG_USER_ONLY
+    gen_psw_addr_disp(s, gbea, 0);
+    if (per_enabled(s)) {
+        TCGv_i64 dest = tcg_temp_new_i64();
+        gen_psw_addr_disp(s, dest, disp);
+        gen_helper_per_branch(cpu_env, gbea, dest);
+        tcg_temp_free_i64(dest);
     }
 #endif
 }
@@ -1172,7 +1176,7 @@  struct DisasInsn {
 static DisasJumpType help_goto_direct(DisasContext *s, int64_t disp)
 {
     if (disp == s->ilen) {
-        per_branch(s, true);
+        per_branch_disp(s, disp);
         return DISAS_NEXT;
     }
     if (use_goto_tb(s, s->base.pc_next + disp)) {
@@ -1184,7 +1188,7 @@  static DisasJumpType help_goto_direct(DisasContext *s, int64_t disp)
         return DISAS_NORETURN;
     } else {
         update_psw_addr_disp(s, disp);
-        per_branch(s, false);
+        per_branch_dest(s, psw_addr);
         return DISAS_PC_UPDATED;
     }
 }
@@ -1192,7 +1196,7 @@  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);
+    per_branch_dest(s, psw_addr);
     return DISAS_PC_UPDATED;
 }