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authorPaolo Bonzini <pbonzini@redhat.com>2012-10-08 09:42:48 +0200
committerRichard Henderson <rth@twiddle.net>2013-02-18 15:03:57 -0800
commitcc8b6f5b39ae47a93074a5384faa734bf2a6ae61 (patch)
tree6114117eea486040bb910d29496ef625eb9a32ca
parent69d1aa31f7551050bf918dc22f0fe3307b779186 (diff)
target-i386: cleanup temporary macros for CCPrepare
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--target-i386/translate.c86
1 files changed, 39 insertions, 47 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 0b88eaed78..c83b56f507 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -1040,41 +1040,6 @@ static CCPrepare gen_prepare_eflags_z(DisasContext *s, TCGv reg)
}
}
-#define gen_compute_eflags_c(s, reg, inv) \
- gen_do_setcc(reg, gen_prepare_eflags_c(s, reg), inv)
-
-static void gen_do_setcc(TCGv reg, struct CCPrepare cc, bool inv)
-{
- if (inv) {
- cc.cond = tcg_invert_cond(cc.cond);
- }
-
- if (cc.no_setcond) {
- if (cc.cond == TCG_COND_EQ) {
- tcg_gen_xori_tl(reg, cc.reg, 1);
- } else {
- tcg_gen_mov_tl(reg, cc.reg);
- }
- return;
- }
-
- if (cc.cond == TCG_COND_NE && !cc.use_reg2 && cc.imm == 0 &&
- cc.mask != 0 && (cc.mask & (cc.mask - 1)) == 0) {
- tcg_gen_shri_tl(reg, cc.reg, ctztl(cc.mask));
- tcg_gen_andi_tl(reg, reg, 1);
- return;
- }
- if (cc.mask != -1) {
- tcg_gen_andi_tl(reg, cc.reg, cc.mask);
- cc.reg = reg;
- }
- if (cc.use_reg2) {
- tcg_gen_setcond_tl(cc.cond, reg, cc.reg, cc.reg2);
- } else {
- tcg_gen_setcondi_tl(cc.cond, reg, cc.reg, cc.imm);
- }
-}
-
/* perform a conditional store into register 'reg' according to jump opcode
value 'b'. In the fast case, T0 is guaranted not to be used. */
static CCPrepare gen_prepare_cc(DisasContext *s, int b, TCGv reg)
@@ -1172,8 +1137,40 @@ static CCPrepare gen_prepare_cc(DisasContext *s, int b, TCGv reg)
return cc;
}
-#define gen_setcc1(s, b, reg) \
- gen_do_setcc(reg, gen_prepare_cc(s, b, reg), false)
+static void gen_setcc1(DisasContext *s, int b, TCGv reg)
+{
+ CCPrepare cc = gen_prepare_cc(s, b, reg);
+
+ if (cc.no_setcond) {
+ if (cc.cond == TCG_COND_EQ) {
+ tcg_gen_xori_tl(reg, cc.reg, 1);
+ } else {
+ tcg_gen_mov_tl(reg, cc.reg);
+ }
+ return;
+ }
+
+ if (cc.cond == TCG_COND_NE && !cc.use_reg2 && cc.imm == 0 &&
+ cc.mask != 0 && (cc.mask & (cc.mask - 1)) == 0) {
+ tcg_gen_shri_tl(reg, cc.reg, ctztl(cc.mask));
+ tcg_gen_andi_tl(reg, reg, 1);
+ return;
+ }
+ if (cc.mask != -1) {
+ tcg_gen_andi_tl(reg, cc.reg, cc.mask);
+ cc.reg = reg;
+ }
+ if (cc.use_reg2) {
+ tcg_gen_setcond_tl(cc.cond, reg, cc.reg, cc.reg2);
+ } else {
+ tcg_gen_setcondi_tl(cc.cond, reg, cc.reg, cc.imm);
+ }
+}
+
+static inline void gen_compute_eflags_c(DisasContext *s, TCGv reg)
+{
+ gen_setcc1(s, JCC_B << 1, reg);
+}
/* generate a conditional jump to label 'l1' according to jump opcode
value 'b'. In the fast case, T0 is guaranted not to be used. */
@@ -1399,7 +1396,7 @@ static void gen_op(DisasContext *s1, int op, int ot, int d)
}
switch(op) {
case OP_ADCL:
- gen_compute_eflags_c(s1, cpu_tmp4, false);
+ gen_compute_eflags_c(s1, cpu_tmp4);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_tmp4);
if (d != OR_TMP0)
@@ -1414,7 +1411,7 @@ static void gen_op(DisasContext *s1, int op, int ot, int d)
set_cc_op(s1, CC_OP_DYNAMIC);
break;
case OP_SBBL:
- gen_compute_eflags_c(s1, cpu_tmp4, false);
+ gen_compute_eflags_c(s1, cpu_tmp4);
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_tmp4);
if (d != OR_TMP0)
@@ -1488,7 +1485,7 @@ static void gen_inc(DisasContext *s1, int ot, int d, int c)
gen_op_mov_TN_reg(ot, 0, d);
else
gen_op_ld_T0_A0(ot + s1->mem_index);
- gen_compute_eflags_c(s1, cpu_cc_src, false);
+ gen_compute_eflags_c(s1, cpu_cc_src);
if (c > 0) {
tcg_gen_addi_tl(cpu_T[0], cpu_T[0], 1);
set_cc_op(s1, CC_OP_INCB + ot);
@@ -2417,11 +2414,6 @@ static inline void gen_jcc(DisasContext *s, int b,
}
}
-static void gen_setcc(DisasContext *s, int b)
-{
- gen_setcc1(s, b, cpu_T[0]);
-}
-
static inline void gen_op_movl_T0_seg(int seg_reg)
{
tcg_gen_ld32u_tl(cpu_T[0], cpu_env,
@@ -6431,7 +6423,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
case 0x190 ... 0x19f: /* setcc Gv */
modrm = cpu_ldub_code(env, s->pc++);
- gen_setcc(s, b);
+ gen_setcc1(s, b, cpu_T[0]);
gen_ldst_modrm(env, s, modrm, OT_BYTE, OR_TMP0, 1);
break;
case 0x140 ... 0x14f: /* cmov Gv, Ev */
@@ -6889,7 +6881,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
case 0xd6: /* salc */
if (CODE64(s))
goto illegal_op;
- gen_compute_eflags_c(s, cpu_T[0], false);
+ gen_compute_eflags_c(s, cpu_T[0]);
tcg_gen_neg_tl(cpu_T[0], cpu_T[0]);
gen_op_mov_reg_T0(OT_BYTE, R_EAX);
break;