From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
To: qemu-devel@nongnu.org
Cc: figlesia@xilinx.com, peter.maydell@linaro.org,
sstabellini@kernel.org, edgar.iglesias@xilinx.com,
sai.pavan.boddu@xilinx.com, frasse.iglesias@gmail.com,
alistair@alistair23.me, richard.henderson@linaro.org,
frederic.konrad@adacore.com, philmd@redhat.com,
luc.michel@greensocs.com
Subject: [PATCH v2 2/3] target/microblaze: Plug temp leaks with delay slot setup
Date: Fri, 8 Nov 2019 13:42:18 +0100 [thread overview]
Message-ID: <20191108124219.31348-3-edgar.iglesias@gmail.com> (raw)
In-Reply-To: <20191108124219.31348-1-edgar.iglesias@gmail.com>
From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
Plug temp leaks with delay slot setup.
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
---
target/microblaze/translate.c | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index c8442b18e1..7b4b66a622 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -1177,6 +1177,17 @@ static void eval_cond_jmp(DisasContext *dc, TCGv_i64 pc_true, TCGv_i64 pc_false)
tcg_temp_free_i64(tmp_zero);
}
+static void dec_setup_dslot(DisasContext *dc)
+{
+ TCGv_i32 tmp = tcg_const_i32(dc->type_b && (dc->tb_flags & IMM_FLAG));
+
+ dc->delayed_branch = 2;
+ dc->tb_flags |= D_FLAG;
+
+ tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUMBState, bimm));
+ tcg_temp_free_i32(tmp);
+}
+
static void dec_bcc(DisasContext *dc)
{
unsigned int cc;
@@ -1188,10 +1199,7 @@ static void dec_bcc(DisasContext *dc)
dc->delayed_branch = 1;
if (dslot) {
- dc->delayed_branch = 2;
- dc->tb_flags |= D_FLAG;
- tcg_gen_st_i32(tcg_const_i32(dc->type_b && (dc->tb_flags & IMM_FLAG)),
- cpu_env, offsetof(CPUMBState, bimm));
+ dec_setup_dslot(dc);
}
if (dec_alu_op_b_is_small_imm(dc)) {
@@ -1250,10 +1258,7 @@ static void dec_br(DisasContext *dc)
dc->delayed_branch = 1;
if (dslot) {
- dc->delayed_branch = 2;
- dc->tb_flags |= D_FLAG;
- tcg_gen_st_i32(tcg_const_i32(dc->type_b && (dc->tb_flags & IMM_FLAG)),
- cpu_env, offsetof(CPUMBState, bimm));
+ dec_setup_dslot(dc);
}
if (link && dc->rd)
tcg_gen_movi_i32(cpu_R[dc->rd], dc->pc);
@@ -1355,10 +1360,7 @@ static void dec_rts(DisasContext *dc)
return;
}
- dc->delayed_branch = 2;
- dc->tb_flags |= D_FLAG;
- tcg_gen_st_i32(tcg_const_i32(dc->type_b && (dc->tb_flags & IMM_FLAG)),
- cpu_env, offsetof(CPUMBState, bimm));
+ dec_setup_dslot(dc);
if (i_bit) {
LOG_DIS("rtid ir=%x\n", dc->ir);
--
2.20.1
next prev parent reply other threads:[~2019-11-08 12:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-08 12:42 [PATCH v2 0/3] target/microblaze: Plug tcg temp leaks Edgar E. Iglesias
2019-11-08 12:42 ` [PATCH v2 1/3] target/microblaze: Plug temp leaks for loads/stores Edgar E. Iglesias
2019-11-08 13:15 ` Richard Henderson
2019-11-08 13:16 ` Luc Michel
2019-11-08 16:30 ` Alistair Francis
2019-11-08 12:42 ` Edgar E. Iglesias [this message]
2019-11-08 12:42 ` [PATCH v2 3/3] target/microblaze: Plug temp leak around eval_cond_jmp() Edgar E. Iglesias
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