Commit 24b9c00f authored by Richard Henderson's avatar Richard Henderson
Browse files

target-i386: Tidy gen_op_mov_TN_reg+tcg_gen_trunc_tl_i32 



For the 16 and 32-bit cases, we don't need to truncate via
a temporary register.

Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarRichard Henderson <rth@twiddle.net>
parent 3655a19f

target-i386/translate.c

+3 −6
Original line number Diff line number Diff line
@@ -1259,8 +1259,7 @@ static inline void gen_ins(DisasContext *s, int ot) 
       case of page fault. */

    gen_op_movl_T0_0();

    gen_op_st_v(s, ot, cpu_T[0], cpu_A0);

    gen_op_mov_TN_reg(MO_16, 1, R_EDX);

    tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[1]);

    tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[R_EDX]);

    tcg_gen_andi_i32(cpu_tmp2_i32, cpu_tmp2_i32, 0xffff);

    gen_helper_in_func(ot, cpu_T[0], cpu_tmp2_i32);

    gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
@@ -1277,8 +1276,7 @@ static inline void gen_outs(DisasContext *s, int ot) 
    gen_string_movl_A0_ESI(s);

    gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);



    gen_op_mov_TN_reg(MO_16, 1, R_EDX);

    tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[1]);

    tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[R_EDX]);

    tcg_gen_andi_i32(cpu_tmp2_i32, cpu_tmp2_i32, 0xffff);

    tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[0]);

    gen_helper_out_func(ot, cpu_tmp2_i32, cpu_tmp3_i32);
@@ -3839,8 +3837,7 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b, 
                    ot = MO_64;

                }



                gen_op_mov_TN_reg(MO_32, 0, reg);

                tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);

                tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[reg]);

                gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);

                gen_helper_crc32(cpu_T[0], cpu_tmp2_i32,

                                 cpu_T[0], tcg_const_i32(8 << ot));