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[PATCH 06/14] target/s390x: Introduce help_goto_indirect
From: |
Richard Henderson |
Subject: |
[PATCH 06/14] target/s390x: Introduce help_goto_indirect |
Date: |
Wed, 1 May 2024 22:44:09 -0700 |
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 c3c821430d..b1a93070cb 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -1120,6 +1120,13 @@ static DisasJumpType help_goto_direct(DisasContext *s,
uint64_t dest)
}
}
+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)
{
@@ -1150,9 +1157,7 @@ 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;
}
}
@@ -1465,9 +1470,7 @@ static DisasJumpType op_bas(DisasContext *s, DisasOps *o)
{
pc_to_link_info(o->out, s, s->pc_tmp);
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;
}
@@ -1497,9 +1500,7 @@ 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
- [PATCH 13/14] target/s390x: Adjust check of noreturn in translate_one, (continued)
- [PATCH 13/14] target/s390x: Adjust check of noreturn in translate_one, Richard Henderson, 2024/05/02
- [PATCH 07/14] target/s390x: Simplify help_branch, Richard Henderson, 2024/05/02
- [PATCH 12/14] target/s390x: Simplify per_ifetch, per_check_exception, Richard Henderson, 2024/05/02
- [PATCH 08/14] target/s390x: Split per_breaking_event from per_branch_*, Richard Henderson, 2024/05/02
- [PATCH 09/14] target/s390x: Raise exception from helper_per_branch, Richard Henderson, 2024/05/02
- [PATCH 14/14] tests/tcg/s390x: Add per.S, Richard Henderson, 2024/05/02
- [PATCH 06/14] target/s390x: Introduce help_goto_indirect,
Richard Henderson <=