#include "firm_config.h"
+#include <limits.h>
+
#include "irmode.h"
#include "irnode.h"
#include "entity_t.h"
beo_Last
} be_opcode_t;
-/** Expresses the direction of the stack pointer increment of IncSP nodes. */
-typedef enum {
- be_stack_dir_expand = 0,
- be_stack_dir_shrink = 1
-} be_stack_dir_t;
-
/** Not used yet. */
typedef enum {
be_frame_flag_spill = 1,
* A "symbolic constant" for the size of the stack frame to use with IncSP nodes.
* It gets back-patched to the real size as soon it is known.
*/
-#define BE_STACK_FRAME_SIZE ((unsigned) -1)
+#define BE_STACK_FRAME_SIZE_EXPAND INT_MAX
+#define BE_STACK_FRAME_SIZE_SHRINK INT_MIN
/**
* Determines if irn is a be_node.
* @param irg The graph to insert the node to.
* @param bl The block to insert the node into.
* @param old_sp The node defining the former stack pointer.
- * @param amount The mount of bytes the stack pointer shall be increased/decreased.
+ * @param amount The mount of bytes the stack shall be expanded/shrinked (see set_IncSP_offset)
* @param dir The direction in which the stack pointer shall be modified:
* Along the stack's growing direction or against.
* @return A new stack pointer increment/decrement node.
* @note This node sets a register constraint to the @p sp register on its output.
*/
-ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *mem, unsigned amount, be_stack_dir_t dir);
+ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, int offset);
/** Returns the previous node that computes the stack pointer. */
ir_node *be_get_IncSP_pred(ir_node *incsp);
/** Sets the previous node that computes the stack pointer. */
void be_set_IncSP_pred(ir_node *incsp, ir_node *pred);
-/** Returns the memory input of the IncSP. */
-ir_node *be_get_IncSP_mem(ir_node *irn);
-
-/** Sets a new offset to a IncSP node. */
-void be_set_IncSP_offset(ir_node *irn, unsigned offset);
+/**
+ * Sets a new offset to a IncSP node.
+ * A positive offset means expanding the stack, a negative offset shrinking
+ * an offset is == BE_STACK_FRAME_SIZE will be replaced by the real size of the
+ * stackframe in the fix_stack_offsets phase.
+ */
+void be_set_IncSP_offset(ir_node *irn, int offset);
/** Gets the offset from a IncSP node. */
-unsigned be_get_IncSP_offset(const ir_node *irn);
-
-/** Sets a new direction to a IncSP node. */
-void be_set_IncSP_direction(ir_node *irn, be_stack_dir_t dir);
-
-/** Gets the direction from a IncSP node. */
-be_stack_dir_t be_get_IncSP_direction(const ir_node *irn);
+int be_get_IncSP_offset(const ir_node *irn);
/** Gets the call entity or NULL if this is no static call. */
entity *be_Call_get_entity(const ir_node *call);
ir_node* be_get_Reload_mem(const ir_node *irn);
ir_node* be_get_Reload_frame(const ir_node* irn);
+ir_node* be_get_Spill_val(const ir_node *irn);
+ir_node* be_get_Spill_frame(const ir_node* irn);
+
void be_set_MemPerm_in_entity(const ir_node *irn, int n, entity* ent);
entity *be_get_MemPerm_in_entity(const ir_node *irn, int n);