/*
- * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2010 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
if (get_SymConst_kind(node) != symconst_addr_ent)
return 0;
- (*symconsts)++;
- if (*symconsts > 1)
+ if (++*symconsts > 1)
return 0;
return 1;
if (ia32_is_non_address_mode_node(node))
return 0;
- left = get_binop_left(node);
- right = get_binop_right(node);
+ left = get_binop_left(node);
if (!do_is_immediate(left, symconsts, negate))
return 0;
+ right = get_binop_right(node);
if (!do_is_immediate(right, symconsts, is_Sub(node) ? !negate : negate))
return 0;
}
}
-/**
- * Checks if a DAG with a single root node can be represented as a simple immediate.
- *
- * @param node the node
- *
- * @return non-zero if the DAG represents an immediate, 0 else
- */
-#if 0
-static int is_immediate_simple(const ir_node *node)
-{
- int symconsts = 0;
- return do_is_immediate(node, &symconsts, 0);
-}
-#endif
-
/**
* Check if a DAG starting with root node can be folded into an address mode
* as an immediate.
case iro_Add:
assert(!ia32_is_non_address_mode_node(node));
left = get_Add_left(node);
- right = get_Add_right(node);
eat_immediate(addr, left, negate);
+ right = get_Add_right(node);
eat_immediate(addr, right, negate);
break;
case iro_Sub:
assert(!ia32_is_non_address_mode_node(node));
left = get_Sub_left(node);
- right = get_Sub_right(node);
eat_immediate(addr, left, negate);
+ right = get_Sub_right(node);
eat_immediate(addr, right, !negate);
break;
default:
return bitset_is_set(non_address_mode_nodes, get_irn_idx(node));
}
+/**
+ * Check if a given value is last used (i.e. die after) the block of some other node.
+ */
static int value_last_used_here(be_lv_t *lv, ir_node *here, ir_node *value)
{
ir_node *block = get_nodes_block(here);