fixed several bugs

ir/be/ia32/bearch_ia32.c

@@ -824,7 +824,7 @@ void ia32_get_call_abi(const void *self, ir_type *method_type, be_abi_call_t *ab
 	int       n         = get_method_n_params(method_type);
 	int       biggest_n = -1;
 	int       stack_idx = 0;
-	int       i, ignore;
+	int       i, ignore_1, ignore_2;
 	ir_mode **modes;
 	const arch_register_t *reg;
 	be_abi_call_flags_t call_flags;
@@ -851,7 +851,7 @@ void ia32_get_call_abi(const void *self, ir_type *method_type, be_abi_call_t *ab
 //	if (cc & cc_reg_param) {
 	if (1) {
 		/* determine the number of parameters passed via registers */
-		biggest_n = ia32_get_n_regparam_class(n, modes, &ignore, &ignore);
+		biggest_n = ia32_get_n_regparam_class(n, modes, &ignore_1, &ignore_2);
 
 		/* loop over all parameters and set the register requirements */
 		for (i = 0; i <= biggest_n; i++) {

ir/be/ia32/ia32_emitter.c

@@ -240,6 +240,8 @@ char *ia32_emit_binop(const ir_node *n, ia32_emit_env_t *env) {
 	/* 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_CondJmp(n) || is_ia32_fCondJmp(n) || is_ia32_SwitchJmp(n))
+
 	if (! buf) {
 		buf = xcalloc(1, SNPRINTF_BUF_LEN);
 	}
@@ -255,7 +257,7 @@ char *ia32_emit_binop(const ir_node *n, ia32_emit_env_t *env) {
 			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 = get_ia32_n_res(n) > 0 ? get_out_reg(n, 0) : NULL;
+				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;
@@ -301,6 +303,8 @@ char *ia32_emit_binop(const ir_node *n, ia32_emit_env_t *env) {
 			assert(0 && "unsupported op type");
 	}
 
+#undef PRODUCES_RESULT
+
 	return buf;
 }
 

ir/be/ia32/ia32_map_regs.c

@@ -136,8 +136,11 @@ char *ia32_get_mapped_reg_name(pmap *reg_map, const arch_register_t *reg) {
 int ia32_get_n_regparam_class(int n, ir_mode **modes, int *n_int, int *n_float) {
 	int i, finished = 0;
 
+	*n_int   = 0;
+	*n_float = 0;
+
 	for (i = 0; i < n && !finished; i++) {
-		if (mode_is_int(modes[i])) {
+		if (mode_is_int(modes[i]) || mode_is_reference(modes[i])) {
 			*n_int = *n_int + 1;
 		}
 		else if (mode_is_float(modes[i])) {