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target/s390x: Introduce help_goto_indirect

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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>
Message-ID: <20240502054417.234340-7-richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Richard Henderson 2024-05-01 22:44:09 -07:00 committed by Thomas Huth
parent a90e319569
commit 9bbbcf5ddb
1 changed files with 10 additions and 9 deletions
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19
target/s390x/tcg/translate.c
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@ -1118,6 +1118,13 @@ 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)
{
@ -1148,9 +1155,7 @@ 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;
}
}
@ -1463,9 +1468,7 @@ 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;
}
@ -1495,9 +1498,7 @@ 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;
}