From 57eb0cc85469a8948d1036ab830951e63aa32f66 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 16 Jan 2013 11:00:14 -0800 Subject: target-i386: expand cmov via movcond Signed-off-by: Richard Henderson --- target-i386/translate.c | 45 ++++++++++++++++++++------------------------- 1 file changed, 20 insertions(+), 25 deletions(-) (limited to 'target-i386/translate.c') diff --git a/target-i386/translate.c b/target-i386/translate.c index 4b0a701d8c..9d5467dbfb 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -2417,35 +2417,30 @@ static inline void gen_jcc(DisasContext *s, int b, static void gen_cmovcc1(CPUX86State *env, DisasContext *s, int ot, int b, int modrm, int reg) { - int l1, mod = (modrm >> 6) & 3; - TCGv t0 = tcg_temp_local_new(); + CCPrepare cc; - if (mod != 3) { - int reg_addr, offset_addr; - gen_lea_modrm(env, s, modrm, ®_addr, &offset_addr); - gen_op_ld_v(ot + s->mem_index, t0, cpu_A0); - } else { - int rm = (modrm & 7) | REX_B(s); - gen_op_mov_v_reg(ot, t0, rm); - } + gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0); - l1 = gen_new_label(); - gen_jcc1(s, b ^ 1, l1); - switch (ot) { -#ifdef TARGET_X86_64 - case OT_LONG: - tcg_gen_mov_tl(cpu_regs[reg], t0); - gen_set_label(l1); - tcg_gen_ext32u_tl(cpu_regs[reg], cpu_regs[reg]); - break; -#endif - default: - gen_op_mov_reg_v(ot, reg, t0); - gen_set_label(l1); - break; + cc = gen_prepare_cc(s, b, cpu_T[1]); + if (cc.mask != -1) { + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, cc.reg, cc.mask); + cc.reg = t0; + } + if (!cc.use_reg2) { + cc.reg2 = tcg_const_tl(cc.imm); } - tcg_temp_free(t0); + tcg_gen_movcond_tl(cc.cond, cpu_T[0], cc.reg, cc.reg2, + cpu_T[0], cpu_regs[reg]); + gen_op_mov_reg_T0(ot, reg); + + if (cc.mask != -1) { + tcg_temp_free(cc.reg); + } + if (!cc.use_reg2) { + tcg_temp_free(cc.reg2); + } } static inline void gen_op_movl_T0_seg(int seg_reg) -- cgit v1.2.3