From 24b9c00fc3106a98adc0e89915584eadb092b745 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 2 Nov 2013 09:35:30 -1000 Subject: [PATCH] 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: Peter Maydell Signed-off-by: Richard Henderson --- target-i386/translate.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/target-i386/translate.c b/target-i386/translate.c index c07062c388..3d03d47716 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -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));