set a few more variables to const to prevent bugs

[r27318]

diff --git a/ir/ana/vrp.c b/ir/ana/vrp.c
index 5c67196..38d4737 100644 (file)
--- a/ir/ana/vrp.c
+++ b/ir/ana/vrp.c
@@ -81,8 +81,8 @@ static int vrp_update_node(ir_node *node)
                break;
        }
        case iro_And: {
-               vrp_attr *vrp_left, *vrp_right;
-               ir_node *left, *right;
+               const vrp_attr *vrp_left, *vrp_right;
+               const ir_node *left, *right;
 
                left = get_And_left(node);
                right = get_And_right(node);
@@ -97,7 +97,7 @@ static int vrp_update_node(ir_node *node)
        case iro_Add: {
                int overflow_top, overflow_bottom;
                tarval *new_top, *new_bottom;
-               vrp_attr *vrp_left, *vrp_right;
+               const vrp_attr *vrp_left, *vrp_right;
                vrp_left = get_vrp_attr(get_Add_left(node));
                vrp_right = get_vrp_attr(get_Add_right(node));
 
@@ -129,7 +129,7 @@ static int vrp_update_node(ir_node *node)
        case iro_Sub: {
                int overflow_top, overflow_bottom;
                tarval *new_top, *new_bottom;
-               vrp_attr *vrp_left, *vrp_right;
+               const vrp_attr *vrp_left, *vrp_right;
                vrp_left = get_vrp_attr(get_Sub_left(node));
                vrp_right = get_vrp_attr(get_Sub_right(node));
 
@@ -158,7 +158,7 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Or: {
-               vrp_attr *vrp_left, *vrp_right;
+               const vrp_attr *vrp_left, *vrp_right;
 
                vrp_left = get_vrp_attr(get_Or_left(node));
                vrp_right = get_vrp_attr(get_Or_right(node));
@@ -170,8 +170,8 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Rotl: {
-               vrp_attr *vrp_left, *vrp_right;
-               ir_node *right = get_Rotl_right(node);
+               const vrp_attr *vrp_left, *vrp_right;
+               const ir_node *right = get_Rotl_right(node);
 
                vrp_left = get_vrp_attr(get_Rotl_left(node));
                vrp_right = get_vrp_attr(get_Rotl_right(node));
@@ -186,8 +186,8 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Shl: {
-               vrp_attr *vrp_left, *vrp_right;
-               ir_node *right = get_Shl_right(node);
+               const vrp_attr *vrp_left, *vrp_right;
+               const ir_node *right = get_Shl_right(node);
                vrp_left = get_vrp_attr(get_Shl_left(node));
                vrp_right = get_vrp_attr(get_Shl_right(node));
 
@@ -200,8 +200,8 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Shr: {
-               vrp_attr *vrp_left, *vrp_right;
-               ir_node *right = get_Shr_right(node);
+               const vrp_attr *vrp_left, *vrp_right;
+               const ir_node *right = get_Shr_right(node);
 
                vrp_left = get_vrp_attr(get_Shr_left(node));
                vrp_right = get_vrp_attr(get_Shr_right(node));
@@ -215,8 +215,8 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Shrs: {
-               vrp_attr *vrp_left, *vrp_right;
-               ir_node *right = get_Shrs_right(node);
+               const vrp_attr *vrp_left, *vrp_right;
+               const ir_node *right = get_Shrs_right(node);
 
                vrp_left = get_vrp_attr(get_Shrs_left(node));
                vrp_right = get_vrp_attr(get_Shrs_right(node));
@@ -230,7 +230,7 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Eor: {
-               vrp_attr *vrp_left, *vrp_right;
+               const vrp_attr *vrp_left, *vrp_right;
 
                vrp_left = get_vrp_attr(get_Eor_left(node));
                vrp_right = get_vrp_attr(get_Eor_right(node));
@@ -248,7 +248,7 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Id: {
-               vrp_attr *vrp_pred = get_vrp_attr(get_Id_pred(node));
+               const vrp_attr *vrp_pred = get_vrp_attr(get_Id_pred(node));
                new_bits_set = vrp_pred->bits_set;
                new_bits_not_set = vrp_pred->bits_not_set;
                new_range_top = vrp_pred->range_top;
@@ -258,16 +258,16 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Not: {
-               vrp_attr *vrp_pred = get_vrp_attr(get_Not_op(node));
+               const vrp_attr *vrp_pred = get_vrp_attr(get_Not_op(node));
                new_bits_set = tarval_not(vrp_pred->bits_not_set);
                new_bits_not_set = tarval_not(vrp_pred->bits_set);
                break;
        }
 
        case iro_Conv: {
-               ir_node *pred = get_Conv_op(node);
+               const ir_node *pred = get_Conv_op(node);
                ir_mode *old_mode = get_irn_mode(pred);
-               vrp_attr *vrp_pred = get_vrp_attr(pred);
+               const vrp_attr *vrp_pred = get_vrp_attr(pred);
 
                ir_mode *new_mode;
 
@@ -293,8 +293,8 @@ static int vrp_update_node(ir_node *node)
        }
 
        case iro_Confirm: {
-               pn_Cmp cmp = get_Confirm_cmp(node);
-               ir_node *bound = get_Confirm_bound(node);
+               const pn_Cmp cmp = get_Confirm_cmp(node);
+               const ir_node *bound = get_Confirm_bound(node);
 
 
                if (cmp == pn_Cmp_Lg) {
@@ -321,8 +321,8 @@ static int vrp_update_node(ir_node *node)
                pn_Cmp cmp;
                int i;
 
-               ir_node *pred = get_Phi_pred(node,0);
-               vrp_attr *vrp_pred = get_vrp_attr(pred);
+               const ir_node *pred = get_Phi_pred(node,0);
+               const vrp_attr *vrp_pred = get_vrp_attr(pred);
                new_range_top = vrp_pred->range_top;
                new_range_bottom = vrp_pred->range_bottom;
                new_range_type = vrp_pred->range_type;