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[Qemu-devel] [PULL 19/49] target-i386: Tidy gen_op_mov_TN_reg+tcg_gen_tr
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PULL 19/49] target-i386: Tidy gen_op_mov_TN_reg+tcg_gen_trunc_tl_i32 |
Date: |
Tue, 7 Jan 2014 13:00:09 -0800 |
For the 16 and 32-bit cases, we don't need to truncate via
a temporary register.
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
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 c07062c..3d03d47 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));
--
1.8.4.2
- [Qemu-devel] [PULL 10/49] target-i386: Remove gen_op_lds_T0_A0, (continued)
- [Qemu-devel] [PULL 10/49] target-i386: Remove gen_op_lds_T0_A0, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 11/49] target-i386: Introduce gen_op_st_rm_T0_A0, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 06/49] target-i386: Replace OT_* constants with MO_* constants, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 12/49] target-i386: Remove gen_op_st_T0_A0, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 13/49] target-i386: Remove gen_op_st_T1_A0, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 14/49] target-i386: Fix typo in gen_push_T1, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 15/49] target-i386: Tidy mov[sz][bw], Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 16/49] target-i386: Tidy movsl, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 17/49] target-i386: Remove unused arguments to gen_lea_modrm, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 18/49] target-i386: Use MO_BE for movbe, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 19/49] target-i386: Tidy gen_op_mov_TN_reg+tcg_gen_trunc_tl_i32,
Richard Henderson <=
- [Qemu-devel] [PULL 20/49] target-i386: Tidy load + truncate, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 21/49] target-i386: Tidy extend + store, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 22/49] target-i386: Tidy extend + move, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 24/49] target-i386: Remove gen_op_movl_T0_im*, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 23/49] target-i386: Remove gen_op_movl_T0_0, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 25/49] target-i386: Remove gen_op_movl_T0_im*, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 27/49] target-i386: Remove gen_movtl_T*_im, Richard Henderson, 2014/01/07
- [Qemu-devel] [PULL 26/49] target-i386: Remove gen_op_mov*_A0_im, Richard Henderson, 2014/01/07