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target/riscv: Use tcg_constant_*

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Replace uses of tcg_const_* with the allocate and free close together.

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210823195529.560295-2-richard.henderson@linaro.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Richard Henderson 2021-08-23 12:55:06 -07:00 • committed by Alistair Francis
parent 2a4b408930
commit 05b80ed0a1
3 changed files with 34 additions and 70 deletions
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36
target/riscv/translate.c
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@ -104,20 +104,16 @@ static void gen_nanbox_s(TCGv_i64 out, TCGv_i64 in)
*/
static void gen_check_nanbox_s(TCGv_i64 out, TCGv_i64 in)
{
TCGv_i64 t_max = tcg_const_i64(0xffffffff00000000ull);
TCGv_i64 t_nan = tcg_const_i64(0xffffffff7fc00000ull);
TCGv_i64 t_max = tcg_constant_i64(0xffffffff00000000ull);
TCGv_i64 t_nan = tcg_constant_i64(0xffffffff7fc00000ull);
tcg_gen_movcond_i64(TCG_COND_GEU, out, in, t_max, in, t_nan);
tcg_temp_free_i64(t_max);
tcg_temp_free_i64(t_nan);
}
static void generate_exception(DisasContext *ctx, int excp)
{
tcg_gen_movi_tl(cpu_pc, ctx->base.pc_next);
TCGv_i32 helper_tmp = tcg_const_i32(excp);
gen_helper_raise_exception(cpu_env, helper_tmp);
tcg_temp_free_i32(helper_tmp);
gen_helper_raise_exception(cpu_env, tcg_constant_i32(excp));
ctx->base.is_jmp = DISAS_NORETURN;
}
@ -125,17 +121,13 @@ static void generate_exception_mtval(DisasContext *ctx, int excp)
{
tcg_gen_movi_tl(cpu_pc, ctx->base.pc_next);
tcg_gen_st_tl(cpu_pc, cpu_env, offsetof(CPURISCVState, badaddr));
TCGv_i32 helper_tmp = tcg_const_i32(excp);
gen_helper_raise_exception(cpu_env, helper_tmp);
tcg_temp_free_i32(helper_tmp);
gen_helper_raise_exception(cpu_env, tcg_constant_i32(excp));
ctx->base.is_jmp = DISAS_NORETURN;
}
static void gen_exception_debug(void)
{
TCGv_i32 helper_tmp = tcg_const_i32(EXCP_DEBUG);
gen_helper_raise_exception(cpu_env, helper_tmp);
tcg_temp_free_i32(helper_tmp);
gen_helper_raise_exception(cpu_env, tcg_constant_i32(EXCP_DEBUG));
}
/* Wrapper around tcg_gen_exit_tb that handles single stepping */
@ -229,7 +221,7 @@ static void gen_div(TCGv ret, TCGv source1, TCGv source2)
*/
cond1 = tcg_temp_new();
cond2 = tcg_temp_new();
zeroreg = tcg_const_tl(0);
zeroreg = tcg_constant_tl(0);
resultopt1 = tcg_temp_new();
tcg_gen_movi_tl(resultopt1, (target_ulong)-1);
@ -250,7 +242,6 @@ static void gen_div(TCGv ret, TCGv source1, TCGv source2)
tcg_temp_free(cond1);
tcg_temp_free(cond2);
tcg_temp_free(zeroreg);
tcg_temp_free(resultopt1);
}
@ -259,7 +250,7 @@ static void gen_divu(TCGv ret, TCGv source1, TCGv source2)
TCGv cond1, zeroreg, resultopt1;
cond1 = tcg_temp_new();
zeroreg = tcg_const_tl(0);
zeroreg = tcg_constant_tl(0);
resultopt1 = tcg_temp_new();
tcg_gen_setcondi_tl(TCG_COND_EQ, cond1, source2, 0);
@ -272,7 +263,6 @@ static void gen_divu(TCGv ret, TCGv source1, TCGv source2)
tcg_gen_divu_tl(ret, source1, source2);
tcg_temp_free(cond1);
tcg_temp_free(zeroreg);
tcg_temp_free(resultopt1);
}
@ -282,7 +272,7 @@ static void gen_rem(TCGv ret, TCGv source1, TCGv source2)
cond1 = tcg_temp_new();
cond2 = tcg_temp_new();
zeroreg = tcg_const_tl(0);
zeroreg = tcg_constant_tl(0);
resultopt1 = tcg_temp_new();
tcg_gen_movi_tl(resultopt1, 1L);
@ -302,7 +292,6 @@ static void gen_rem(TCGv ret, TCGv source1, TCGv source2)
tcg_temp_free(cond1);
tcg_temp_free(cond2);
tcg_temp_free(zeroreg);
tcg_temp_free(resultopt1);
}
@ -310,7 +299,7 @@ static void gen_remu(TCGv ret, TCGv source1, TCGv source2)
{
TCGv cond1, zeroreg, resultopt1;
cond1 = tcg_temp_new();
zeroreg = tcg_const_tl(0);
zeroreg = tcg_constant_tl(0);
resultopt1 = tcg_temp_new();
tcg_gen_movi_tl(resultopt1, (target_ulong)1);
@ -323,7 +312,6 @@ static void gen_remu(TCGv ret, TCGv source1, TCGv source2)
source1);
tcg_temp_free(cond1);
tcg_temp_free(zeroreg);
tcg_temp_free(resultopt1);
}
@ -384,15 +372,11 @@ static inline void mark_fs_dirty(DisasContext *ctx) { }
static void gen_set_rm(DisasContext *ctx, int rm)
{
TCGv_i32 t0;
if (ctx->frm == rm) {
return;
}
ctx->frm = rm;
t0 = tcg_const_i32(rm);
gen_helper_set_rounding_mode(cpu_env, t0);
tcg_temp_free_i32(t0);
gen_helper_set_rounding_mode(cpu_env, tcg_constant_i32(rm));
}
static int ex_plus_1(DisasContext *ctx, int nf)