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target/microblaze: Plug temp leaks with delay slot setup 

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>
This commit is contained in:
Edgar E. Iglesias 2019-11-06 14:26:53 +01:00
parent a633801526
commit f91c60f0ca
1 changed files with 14 additions and 12 deletions
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26
target/microblaze/translate.c
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@ -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);