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target-i386: Change gen_op_add_reg_* size parameter to TCGMemOp 

These functions used the aflags/dflags domain, which is log2-1
of the byte size.  Confusingly, they used enumeration values
from the log2 domain.

Change the domain of the parameter and update all callers.

Since we're now in a common domain, defer the deposit/extend/mov
decision to gen_op_mov_reg_v.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
master
Richard Henderson 2013-11-06 07:44:57 +10:00
parent d67dc9e619
commit d3f4bbe331
1 changed files with 22 additions and 54 deletions
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76
target-i386/translate.c
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@ -409,48 +409,16 @@ static inline void gen_op_jmp_T0(void)
tcg_gen_st_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, eip));
}
static inline void gen_op_add_reg_im(int size, int reg, int32_t val)
static inline void gen_op_add_reg_im(TCGMemOp size, int reg, int32_t val)
{
switch(size) {
case MO_8:
tcg_gen_addi_tl(cpu_tmp0, cpu_regs[reg], val);
tcg_gen_deposit_tl(cpu_regs[reg], cpu_regs[reg], cpu_tmp0, 0, 16);
break;
case MO_16:
tcg_gen_addi_tl(cpu_tmp0, cpu_regs[reg], val);
/* For x86_64, this sets the higher half of register to zero.
For i386, this is equivalent to a nop. */
tcg_gen_ext32u_tl(cpu_tmp0, cpu_tmp0);
tcg_gen_mov_tl(cpu_regs[reg], cpu_tmp0);
break;
#ifdef TARGET_X86_64
case MO_32:
tcg_gen_addi_tl(cpu_regs[reg], cpu_regs[reg], val);
break;
#endif
}
tcg_gen_addi_tl(cpu_tmp0, cpu_regs[reg], val);
gen_op_mov_reg_v(size, reg, cpu_tmp0);
}
static inline void gen_op_add_reg_T0(int size, int reg)
static inline void gen_op_add_reg_T0(TCGMemOp size, int reg)
{
switch(size) {
case MO_8:
tcg_gen_add_tl(cpu_tmp0, cpu_regs[reg], cpu_T[0]);
tcg_gen_deposit_tl(cpu_regs[reg], cpu_regs[reg], cpu_tmp0, 0, 16);
break;
case MO_16:
tcg_gen_add_tl(cpu_tmp0, cpu_regs[reg], cpu_T[0]);
/* For x86_64, this sets the higher half of register to zero.
For i386, this is equivalent to a nop. */
tcg_gen_ext32u_tl(cpu_tmp0, cpu_tmp0);
tcg_gen_mov_tl(cpu_regs[reg], cpu_tmp0);
break;
#ifdef TARGET_X86_64
case MO_32:
tcg_gen_add_tl(cpu_regs[reg], cpu_regs[reg], cpu_T[0]);
break;
#endif
}
tcg_gen_add_tl(cpu_tmp0, cpu_regs[reg], cpu_T[0]);
gen_op_mov_reg_v(size, reg, cpu_tmp0);
}
static inline void gen_op_addl_A0_reg_sN(int shift, int reg)
@ -732,8 +700,8 @@ static inline void gen_movs(DisasContext *s, TCGMemOp ot)
gen_string_movl_A0_EDI(s);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
gen_op_add_reg_T0(s->aflag, R_EDI);
gen_op_add_reg_T0(s->aflag + 1, R_ESI);
gen_op_add_reg_T0(s->aflag + 1, R_EDI);
}
static void gen_op_update1_cc(void)
@ -1158,7 +1126,7 @@ static inline void gen_stos(DisasContext *s, TCGMemOp ot)
gen_string_movl_A0_EDI(s);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_EDI);
gen_op_add_reg_T0(s->aflag + 1, R_EDI);
}
static inline void gen_lods(DisasContext *s, TCGMemOp ot)
@ -1167,7 +1135,7 @@ static inline void gen_lods(DisasContext *s, TCGMemOp ot)
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
gen_op_mov_reg_T0(ot, R_EAX);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
gen_op_add_reg_T0(s->aflag + 1, R_ESI);
}
static inline void gen_scas(DisasContext *s, TCGMemOp ot)
@ -1176,7 +1144,7 @@ static inline void gen_scas(DisasContext *s, TCGMemOp ot)
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
gen_op(s, OP_CMPL, ot, R_EAX);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_EDI);
gen_op_add_reg_T0(s->aflag + 1, R_EDI);
}
static inline void gen_cmps(DisasContext *s, TCGMemOp ot)
@ -1186,8 +1154,8 @@ static inline void gen_cmps(DisasContext *s, TCGMemOp ot)
gen_string_movl_A0_ESI(s);
gen_op(s, OP_CMPL, ot, OR_TMP0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
gen_op_add_reg_T0(s->aflag, R_EDI);
gen_op_add_reg_T0(s->aflag + 1, R_ESI);
gen_op_add_reg_T0(s->aflag + 1, R_EDI);
}
static inline void gen_ins(DisasContext *s, TCGMemOp ot)
@ -1204,7 +1172,7 @@ static inline void gen_ins(DisasContext *s, TCGMemOp ot)
gen_helper_in_func(ot, cpu_T[0], cpu_tmp2_i32);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_EDI);
gen_op_add_reg_T0(s->aflag + 1, R_EDI);
if (use_icount)
gen_io_end();
}
@ -1222,7 +1190,7 @@ static inline void gen_outs(DisasContext *s, TCGMemOp ot)
gen_helper_out_func(ot, cpu_tmp2_i32, cpu_tmp3_i32);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
gen_op_add_reg_T0(s->aflag + 1, R_ESI);
if (use_icount)
gen_io_end();
}
@ -1237,7 +1205,7 @@ static inline void gen_repz_ ## op(DisasContext *s, TCGMemOp ot, \
gen_update_cc_op(s); \
l2 = gen_jz_ecx_string(s, next_eip); \
gen_ ## op(s, ot); \
gen_op_add_reg_im(s->aflag, R_ECX, -1); \
gen_op_add_reg_im(s->aflag + 1, R_ECX, -1); \
/* a loop would cause two single step exceptions if ECX = 1 \
before rep string_insn */ \
if (!s->jmp_opt) \
@ -1255,7 +1223,7 @@ static inline void gen_repz_ ## op(DisasContext *s, TCGMemOp ot, \
gen_update_cc_op(s); \
l2 = gen_jz_ecx_string(s, next_eip); \
gen_ ## op(s, ot); \
gen_op_add_reg_im(s->aflag, R_ECX, -1); \
gen_op_add_reg_im(s->aflag + 1, R_ECX, -1); \
gen_update_cc_op(s); \
gen_jcc1(s, (JCC_Z << 1) | (nz ^ 1), l2); \
if (!s->jmp_opt) \
@ -2364,13 +2332,13 @@ static inline void gen_stack_update(DisasContext *s, int addend)
{
#ifdef TARGET_X86_64
if (CODE64(s)) {
gen_op_add_reg_im(2, R_ESP, addend);
gen_op_add_reg_im(MO_64, R_ESP, addend);
} else
#endif
if (s->ss32) {
gen_op_add_reg_im(1, R_ESP, addend);
gen_op_add_reg_im(MO_32, R_ESP, addend);
} else {
gen_op_add_reg_im(0, R_ESP, addend);
gen_op_add_reg_im(MO_16, R_ESP, addend);
}
}
@ -7165,12 +7133,12 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
switch(b) {
case 0: /* loopnz */
case 1: /* loopz */
gen_op_add_reg_im(s->aflag, R_ECX, -1);
gen_op_add_reg_im(s->aflag + 1, R_ECX, -1);
gen_op_jz_ecx(s->aflag, l3);
gen_jcc1(s, (JCC_Z << 1) | (b ^ 1), l1);
break;
case 2: /* loop */
gen_op_add_reg_im(s->aflag, R_ECX, -1);
gen_op_add_reg_im(s->aflag + 1, R_ECX, -1);
gen_op_jnz_ecx(s->aflag, l1);
break;
default: