fixed some bugs

ir/be/ia32/bearch_ia32_t.h

@@ -37,7 +37,6 @@ typedef struct _ia32_irn_ops_t {
 /* this is a struct to minimize the number of parameters
    for transformation walker */
 typedef struct _ia32_transform_env_t {
-	const arch_env_t  *arch_env;   /**< The arch_env */
 	firm_dbg_module_t *mod;        /**< The firm debugger */
 	dbg_info          *dbg;        /**< The node debug info */
 	ir_graph          *irg;        /**< The irg, the node should be created in */

ir/be/ia32/ia32_emitter.c

@@ -334,27 +334,11 @@ const lc_arg_env_t *ia32_get_arg_env(void) {
 	return env;
 }
 
-/**
- * For 2-address code we need to make sure the first src reg is equal to dest reg.
- */
-void equalize_dest_src(FILE *F, ir_node *n) {
-	if (get_ia32_reg_nr(n, 0, 1) != get_ia32_reg_nr(n, 0, 0)) {
-		if (get_irn_arity(n) > 1 && get_ia32_reg_nr(n, 1, 1) == get_ia32_reg_nr(n, 0, 0)) {
-			if (! is_op_commutative(get_irn_op(n))) {
-				/* we only need to exchange for non-commutative ops */
-				lc_efprintf(ia32_get_arg_env(), F, "\txchg %1S, %2S\t\t\t/* xchg src1 <-> src2 for 2 address code */\n", n, n);
-			}
-		}
-		else {
-			lc_efprintf(ia32_get_arg_env(), F, "\tmovl %1S, %1D\t\t\t/* src -> dest for 2 address code */\n", n, n);
-		}
-	}
-}
 
 /*
  * Add a number to a prefix. This number will not be used a second time.
  */
-char *get_unique_label(char *buf, size_t buflen, const char *prefix) {
+static char *get_unique_label(char *buf, size_t buflen, const char *prefix) {
 	static unsigned long id = 0;
 	snprintf(buf, buflen, "%s%lu", prefix, ++id);
 	return buf;

ir/be/ia32/ia32_optimize.c

@@ -173,7 +173,6 @@ void ia32_place_consts(ir_node *irn, void *env) {
 
 	mode = get_irn_mode(irn);
 
-	tenv.arch_env = cg->arch_env;
 	tenv.block    = get_nodes_block(irn);
 	tenv.cg       = cg;
 	tenv.irg      = cg->irg;

ir/be/ia32/ia32_transform.c

@@ -457,7 +457,7 @@ static ir_node *gen_Add(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
  * @param mode      node mode
  * @return the created ia32 Mul node
  */
-ir_node *gen_Mul(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
+static ir_node *gen_Mul(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
 	ir_node *new_op;
 
 	if (mode_is_float(env->mode)) {
@@ -1122,7 +1122,7 @@ static ir_node *gen_Load(ia32_transform_env_t *env) {
  * @param mode    node mode
  * @return the created ia32 Store node
  */
-ir_node *gen_Store(ia32_transform_env_t *env) {
+static ir_node *gen_Store(ia32_transform_env_t *env) {
 	ir_node *node  = env->irn;
 	ir_node *noreg = ia32_new_NoReg_gp(env->cg);
 	ir_node *new_op;
@@ -1288,7 +1288,6 @@ void ia32_transform_node(ir_node *node, void *env) {
 	if (is_Block(node))
 		return;
 
-	tenv.arch_env = cgenv->arch_env;
 	tenv.block    = get_nodes_block(node);
 	tenv.dbg      = get_irn_dbg_info(node);
 	tenv.irg      = current_ir_graph;