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target/riscv: Use gen_arith for mulh and mulhu 

Split out gen_mulh and gen_mulhu and use the common helper.

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210823195529.560295-9-richard.henderson@linaro.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Richard Henderson 2021-08-23 12:55:13 -07:00 committed by Alistair Francis
parent afbbec8201
commit 8a1b4917c5
1 changed files with 18 additions and 22 deletions
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40
target/riscv/insn_trans/trans_rvm.c.inc
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@ -25,20 +25,18 @@ static bool trans_mul(DisasContext *ctx, arg_mul *a)
return gen_arith(ctx, a, EXT_NONE, tcg_gen_mul_tl);
}
static void gen_mulh(TCGv ret, TCGv s1, TCGv s2)
{
TCGv discard = tcg_temp_new();
tcg_gen_muls2_tl(discard, ret, s1, s2);
tcg_temp_free(discard);
}
static bool trans_mulh(DisasContext *ctx, arg_mulh *a)
{
REQUIRE_EXT(ctx, RVM);
TCGv source1 = tcg_temp_new();
TCGv source2 = tcg_temp_new();
gen_get_gpr(ctx, source1, a->rs1);
gen_get_gpr(ctx, source2, a->rs2);
tcg_gen_muls2_tl(source2, source1, source1, source2);
gen_set_gpr(ctx, a->rd, source1);
tcg_temp_free(source1);
tcg_temp_free(source2);
return true;
return gen_arith(ctx, a, EXT_NONE, gen_mulh);
}
static bool trans_mulhsu(DisasContext *ctx, arg_mulhsu *a)
@ -47,20 +45,18 @@ static bool trans_mulhsu(DisasContext *ctx, arg_mulhsu *a)
return gen_arith(ctx, a, EXT_NONE, gen_mulhsu);
}
static void gen_mulhu(TCGv ret, TCGv s1, TCGv s2)
{
TCGv discard = tcg_temp_new();
tcg_gen_mulu2_tl(discard, ret, s1, s2);
tcg_temp_free(discard);
}
static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a)
{
REQUIRE_EXT(ctx, RVM);
TCGv source1 = tcg_temp_new();
TCGv source2 = tcg_temp_new();
gen_get_gpr(ctx, source1, a->rs1);
gen_get_gpr(ctx, source2, a->rs2);
tcg_gen_mulu2_tl(source2, source1, source1, source2);
gen_set_gpr(ctx, a->rd, source1);
tcg_temp_free(source1);
tcg_temp_free(source2);
return true;
return gen_arith(ctx, a, EXT_NONE, gen_mulhu);
}
static bool trans_div(DisasContext *ctx, arg_div *a)