target/i386: Use gen_jmp_rel for gen_jcc
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20221001140935.465607-20-richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -2409,32 +2409,14 @@ static void gen_goto_tb(DisasContext *s, int tb_num, target_ulong eip)
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}
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}
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static inline void gen_jcc(DisasContext *s, int b,
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target_ulong val, target_ulong next_eip)
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static void gen_jcc(DisasContext *s, int b, int diff)
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{
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TCGLabel *l1, *l2;
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TCGLabel *l1 = gen_new_label();
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if (s->jmp_opt) {
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l1 = gen_new_label();
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gen_jcc1(s, b, l1);
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gen_goto_tb(s, 0, next_eip);
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gen_set_label(l1);
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gen_goto_tb(s, 1, val);
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} else {
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l1 = gen_new_label();
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l2 = gen_new_label();
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gen_jcc1(s, b, l1);
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gen_jmp_im(s, next_eip);
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tcg_gen_br(l2);
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gen_set_label(l1);
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gen_jmp_im(s, val);
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gen_set_label(l2);
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gen_eob(s);
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}
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gen_jcc1(s, b, l1);
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gen_jmp_rel_csize(s, 0, 1);
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gen_set_label(l1);
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gen_jmp_rel(s, s->dflag, diff, 0);
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}
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static void gen_cmovcc1(CPUX86State *env, DisasContext *s, MemOp ot, int b,
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@ -4780,7 +4762,6 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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int shift;
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MemOp ot, aflag, dflag;
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int modrm, reg, rm, mod, op, opreg, val;
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target_ulong next_eip, tval;
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bool orig_cc_op_dirty = s->cc_op_dirty;
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CCOp orig_cc_op = s->cc_op;
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@ -6933,22 +6914,20 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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}
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break;
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case 0x70 ... 0x7f: /* jcc Jb */
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tval = (int8_t)insn_get(env, s, MO_8);
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goto do_jcc;
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{
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int diff = (int8_t)insn_get(env, s, MO_8);
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gen_bnd_jmp(s);
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gen_jcc(s, b, diff);
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}
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break;
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case 0x180 ... 0x18f: /* jcc Jv */
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if (dflag != MO_16) {
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tval = (int32_t)insn_get(env, s, MO_32);
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} else {
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tval = (int16_t)insn_get(env, s, MO_16);
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{
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int diff = (dflag != MO_16
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? (int32_t)insn_get(env, s, MO_32)
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: (int16_t)insn_get(env, s, MO_16));
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gen_bnd_jmp(s);
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gen_jcc(s, b, diff);
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}
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do_jcc:
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next_eip = s->pc - s->cs_base;
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tval += next_eip;
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if (dflag == MO_16) {
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tval &= 0xffff;
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}
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gen_bnd_jmp(s);
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gen_jcc(s, b, tval, next_eip);
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break;
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case 0x190 ... 0x19f: /* setcc Gv */
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