From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-s390x@nongnu.org, Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH v2 07/27] target/s390x: Change help_goto_direct to work on displacements
Date: Sun, 11 Dec 2022 09:27:42 -0600 [thread overview]
Message-ID: <20221211152802.923900-8-richard.henderson@linaro.org> (raw)
In-Reply-To: <20221211152802.923900-1-richard.henderson@linaro.org>
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/s390x/tcg/translate.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index 1f9dca671d..f755909aeb 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -1145,8 +1145,10 @@ struct DisasInsn {
/* ====================================================================== */
/* Miscellaneous helpers, used by several operations. */
-static DisasJumpType help_goto_direct(DisasContext *s, uint64_t dest)
+static DisasJumpType help_goto_direct(DisasContext *s, int64_t disp)
{
+ uint64_t dest = s->base.pc_next + disp;
+
if (dest == s->pc_tmp) {
per_branch(s, true);
return DISAS_NEXT;
@@ -1169,7 +1171,8 @@ static DisasJumpType help_branch(DisasContext *s, DisasCompare *c,
bool is_imm, int imm, TCGv_i64 cdest)
{
DisasJumpType ret;
- uint64_t dest = s->base.pc_next + (int64_t)imm * 2;
+ int64_t disp = (int64_t)imm * 2;
+ uint64_t dest = s->base.pc_next + disp;
TCGLabel *lab;
/* Take care of the special cases first. */
@@ -1185,7 +1188,7 @@ static DisasJumpType help_branch(DisasContext *s, DisasCompare *c,
goto egress;
}
if (c->cond == TCG_COND_ALWAYS) {
- ret = help_goto_direct(s, dest);
+ ret = help_goto_direct(s, disp);
goto egress;
}
} else {
@@ -1558,7 +1561,7 @@ static DisasJumpType op_bal(DisasContext *s, DisasOps *o)
static DisasJumpType op_basi(DisasContext *s, DisasOps *o)
{
pc_to_link_info(o->out, s, s->pc_tmp);
- return help_goto_direct(s, s->base.pc_next + (int64_t)get_field(s, i2) * 2);
+ return help_goto_direct(s, (int64_t)get_field(s, i2) * 2);
}
static DisasJumpType op_bc(DisasContext *s, DisasOps *o)
--
2.34.1
next prev parent reply other threads:[~2022-12-11 15:33 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-11 15:27 [PATCH v2 00/27] target/s390x: pc-relative translation blocks Richard Henderson
2022-12-11 15:27 ` [PATCH v2 01/27] target/s390x: Use tcg_constant_* in local contexts Richard Henderson
2022-12-11 15:27 ` [PATCH v2 02/27] target/s390x: Use tcg_constant_* for DisasCompare Richard Henderson
2022-12-11 15:43 ` Philippe Mathieu-Daudé
2022-12-11 15:27 ` [PATCH v2 03/27] target/s390x: Use tcg_constant_i32 for fpinst_extract_m34 Richard Henderson
2022-12-11 15:44 ` Philippe Mathieu-Daudé
2022-12-11 15:27 ` [PATCH v2 04/27] target/s390x: Use tcg_constant_* in translate_vx.c.inc Richard Henderson
2022-12-11 15:45 ` Philippe Mathieu-Daudé
2022-12-11 15:27 ` [PATCH v2 05/27] tests/tcg/s390x: Add bal.S Richard Henderson
2022-12-11 15:27 ` [PATCH v2 06/27] tests/tcg/s390x: Add sam.S Richard Henderson
2022-12-11 15:27 ` Richard Henderson [this message]
2022-12-11 15:47 ` [PATCH v2 07/27] target/s390x: Change help_goto_direct to work on displacements Philippe Mathieu-Daudé
2022-12-11 15:27 ` [PATCH v2 08/27] target/s390x: Introduce gen_psw_addr_disp Richard Henderson
2022-12-11 15:27 ` [PATCH v2 09/27] target/s390x: Remove pc argument to pc_to_link_into Richard Henderson
2022-12-11 15:27 ` [PATCH v2 10/27] target/s390x: Use gen_psw_addr_disp in pc_to_link_info Richard Henderson
2022-12-11 15:27 ` [PATCH v2 11/27] target/s390x: Use gen_psw_addr_disp in save_link_info Richard Henderson
2022-12-11 15:27 ` [PATCH v2 12/27] target/s390x: Use gen_psw_addr_disp in op_sam Richard Henderson
2022-12-11 15:27 ` [PATCH v2 13/27] target/s390x: Use ilen instead in branches Richard Henderson
2022-12-11 15:52 ` Philippe Mathieu-Daudé
2022-12-11 15:27 ` [PATCH v2 14/27] target/s390x: Assert masking of psw.addr in cpu_get_tb_cpu_state Richard Henderson
2022-12-13 17:14 ` Ilya Leoshkevich
2022-12-11 15:27 ` [PATCH v2 15/27] target/s390x: Add disp argument to update_psw_addr Richard Henderson
2022-12-11 15:57 ` Philippe Mathieu-Daudé
2022-12-11 15:27 ` [PATCH v2 16/27] target/s390x: Don't set gbea for user-only Richard Henderson
2022-12-11 15:27 ` [PATCH v2 17/27] target/s390x: Introduce per_enabled Richard Henderson
2022-12-11 15:27 ` [PATCH v2 18/27] target/s390x: Disable conditional branch-to-next for PER Richard Henderson
2022-12-11 15:27 ` [PATCH v2 19/27] target/s390x: Introduce help_goto_indirect Richard Henderson
2022-12-11 15:58 ` Philippe Mathieu-Daudé
2022-12-13 17:15 ` Ilya Leoshkevich
2022-12-11 15:27 ` [PATCH v2 20/27] target/s390x: Split per_branch Richard Henderson
2022-12-11 15:27 ` [PATCH v2 21/27] target/s390x: Simplify help_branch Richard Henderson
2022-12-11 15:27 ` [PATCH v2 22/27] target/s390x: Split per_breaking_event from per_branch_* Richard Henderson
2022-12-11 15:27 ` [PATCH v2 23/27] target/s390x: Remove PER check from use_goto_tb Richard Henderson
2022-12-11 15:27 ` [PATCH v2 24/27] target/s390x: Fix successful-branch PER events Richard Henderson
2022-12-11 15:28 ` [PATCH v2 25/27] tests/tcg/s390x: Add per.S Richard Henderson
2022-12-11 15:28 ` [PATCH v2 26/27] target/s390x: Pass original r2 register to BCR Richard Henderson
2022-12-11 15:28 ` [PATCH v2 27/27] target/s390x: Enable TARGET_TB_PCREL Richard Henderson
2022-12-14 17:22 ` Ilya Leoshkevich
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