+ /* verify that this function is never called on non-AM supporting operations */
+ //assert(get_ia32_am_support(n) != ia32_am_None && "emit binop expects addressmode support");
+
+#define PRODUCES_RESULT(n) \
+ (!(is_ia32_St(n) || \
+ is_ia32_Store8Bit(n) || \
+ is_ia32_CondJmp(n) || \
+ is_ia32_fCondJmp(n) || \
+ is_ia32_SwitchJmp(n)))
+
+ if (! buf) {
+ buf = xcalloc(1, SNPRINTF_BUF_LEN);
+ }
+ else {
+ memset(buf, 0, SNPRINTF_BUF_LEN);
+ }
+
+ switch(get_ia32_op_type(n)) {
+ case ia32_Normal:
+ if (get_ia32_cnst(n)) {
+ lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%3S, %s", n, get_ia32_cnst(n));
+ }
+ else {
+ const arch_register_t *in1 = get_in_reg(n, 2);
+ const arch_register_t *in2 = get_in_reg(n, 3);
+ const arch_register_t *out = PRODUCES_RESULT(n) ? get_out_reg(n, 0) : NULL;
+ const arch_register_t *in;
+
+ in = out ? (REGS_ARE_EQUAL(out, in2) ? in1 : in2) : in2;
+ out = out ? out : in1;
+
+ snprintf(buf, SNPRINTF_BUF_LEN, "%s, %s", \
+ arch_register_get_name(out), arch_register_get_name(in));
+ }
+ break;
+ case ia32_AddrModeS:
+ lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%4S, %s", n, ia32_emit_am(n, env));
+ break;
+ case ia32_AddrModeD:
+ if (get_ia32_cnst(n)) {
+ lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %s", ia32_emit_am(n, env), get_ia32_cnst(n));
+ }
+ else {
+ const arch_register_t *in1 = get_in_reg(n, 2);
+ const char *reg_name;
+ ir_mode *mode = get_ia32_res_mode(n);
+
+ mode = mode ? mode : get_ia32_ls_mode(n);
+
+ switch(get_mode_size_bits(mode)) {
+ case 8:
+ reg_name = ia32_get_mapped_reg_name(env->isa->regs_8bit, in1);
+ break;
+ case 16:
+ reg_name = ia32_get_mapped_reg_name(env->isa->regs_16bit, in1);
+ break;
+ case 32:
+ reg_name = arch_register_get_name(in1);
+ break;
+ default:
+ assert(0 && "unsupported mode size");
+ break;
+ }
+
+ lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %s", ia32_emit_am(n, env), reg_name);
+ }
+ break;
+ default:
+ assert(0 && "unsupported op type");
+ }
+
+#undef PRODUCES_RESULT
+
+ return buf;
+}
+
+/**
+ * Emits registers and/or address mode of a unary operation.
+ */
+char *ia32_emit_unop(const ir_node *n, ia32_emit_env_t *env) {
+ static char *buf = NULL;
+
+ if (! buf) {
+ buf = xcalloc(1, SNPRINTF_BUF_LEN);
+ }
+ else {
+ memset(buf, 0, SNPRINTF_BUF_LEN);
+ }
+
+ switch(get_ia32_op_type(n)) {
+ case ia32_Normal:
+ lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%1D", n);
+ break;
+ case ia32_am_Dest:
+ snprintf(buf, SNPRINTF_BUF_LEN, ia32_emit_am(n, env));
+ break;
+ default:
+ assert(0 && "unsupported op type");
+ }
+
+ return buf;
+}
+
+/**
+ * Emits address mode.
+ */
+char *ia32_emit_am(const ir_node *n, ia32_emit_env_t *env) {
+ ia32_am_flavour_t am_flav = get_ia32_am_flavour(n);
+ int had_output = 0;
+ char *s;
+ int size;
+ static struct obstack *obst = NULL;
+ ir_mode *mode = get_ia32_ls_mode(n);
+
+ if (! is_ia32_Lea(n))
+ assert(mode && "AM node must have ls_mode attribute set.");
+
+ if (! obst) {
+ obst = xcalloc(1, sizeof(*obst));
+ }
+ else {
+ obstack_free(obst, NULL);
+ }
+
+ /* obstack_free with NULL results in an uninitialized obstack */
+ obstack_init(obst);
+
+ if (mode) {
+ switch (get_mode_size_bits(mode)) {
+ case 8:
+ obstack_printf(obst, "BYTE ");
+ break;
+ case 16:
+ obstack_printf(obst, "WORD ");
+ break;
+ default:
+ break;
+ }
+ }
+
+ obstack_printf(obst, "[");
+
+ if (am_flav & ia32_B) {
+ lc_eoprintf(ia32_get_arg_env(), obst, "%1S", n);
+ had_output = 1;
+ }
+
+ if (am_flav & ia32_I) {
+ if (had_output) {
+ obstack_printf(obst, "+");
+ }
+
+ lc_eoprintf(ia32_get_arg_env(), obst, "%2S", n);
+
+ if (am_flav & ia32_S) {
+ obstack_printf(obst, "*%d", 1 << get_ia32_am_scale(n));
+ }
+
+ had_output = 1;
+ }
+
+ if (am_flav & ia32_O) {
+ obstack_printf(obst, get_ia32_am_offs(n));
+ }
+
+ obstack_printf(obst, "] ");
+
+ size = obstack_object_size(obst);
+ s = obstack_finish(obst);
+ s[size - 1] = '\0';
+
+ return s;
+}
+
+
+
+/**
+ * Formated print of commands and comments.
+ */
+static void ia32_fprintf_format(FILE *F, char *cmd_buf, char *cmnt_buf) {
+ fprintf(F, "\t%-35s %-60s\n", cmd_buf, cmnt_buf);
+}
+
+
+
+/**