typo fixed

[libfirm] / ir / be / beabi.h

diff --git a/ir/be/beabi.h b/ir/be/beabi.h
index b1ac213..da06899 100644 (file)
--- a/ir/be/beabi.h
+++ b/ir/be/beabi.h
@@ -16,9 +16,6 @@
 #include "bearch.h"
 #include "beabi_t.h"
 
-/** Flag: if set, try to omit the frame pointer if alled by the backend */
-extern int be_omit_fp;
-
 struct _be_abi_call_flags_bits_t {
        unsigned left_to_right          : 1;  /**< Arguments are from left to right. */
        unsigned store_args_sequential  : 1;  /**< Use sequential stores for arguments. */
@@ -68,7 +65,7 @@ struct _be_abi_callbacks_t {
         * Generate the prologue.
         * @param self    The callback object.
         * @param mem     A pointer to the mem node. Update this if you define new memory.
-        * @param reg_map A mapping mapping all callee_save/ignore/parameter registers to their defining nodes.
+        * @param reg_map A map mapping all callee_save/ignore/parameter registers to their defining nodes.
         * @return        The register which shall be used as a stack frame base.
         *
         * All nodes which define registers in @p reg_map must keep @p reg_map current.
@@ -85,6 +82,8 @@ struct _be_abi_callbacks_t {
         * Also, the @p mem variable must be updated, if memory producing nodes are inserted.
         */
        void (*epilogue)(void *self, ir_node *bl, ir_node **mem, pmap *reg_map);
+
+       int (*collect_stack_phis)(void *self);
 };
 
 /**
@@ -96,6 +95,13 @@ struct _be_abi_callbacks_t {
  */
 void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, const be_abi_callbacks_t *cb);
 
+/**
+ * Set register class for call address.
+ * @param call      The call.
+ * @param cls       The register class for call address.
+ */
+void be_abi_call_set_call_address_reg_class(be_abi_call_t *call, const arch_register_class_t *cls);
+
 void be_abi_call_param_stack(be_abi_call_t *call, int pos, unsigned alignment, unsigned space_before, unsigned space_after);
 void be_abi_call_param_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
 void be_abi_call_res_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
@@ -118,17 +124,61 @@ ir_type *be_abi_call_get_method_type(const be_abi_call_t *call);
 
 be_abi_irg_t *be_abi_introduce(be_irg_t *bi);
 void be_abi_fix_stack_bias(be_abi_irg_t *env);
-void be_abi_fix_stack_nodes(be_abi_irg_t *env, be_lv_t *lv);
 void be_abi_free(be_abi_irg_t *abi);
 
+/**
+ * Rewire all stack modifying nodes and their users to assure SSA property.
+ * @param env   The abi
+ * @param lv    Liveness object, so the liveness of changed and newly introduces nodes
+ *              can be recomputed. Maybe NULL (no liveness information update then)
+ */
+void be_abi_fix_stack_nodes(be_abi_irg_t *env, be_lv_t *lv);
+
 /**
  * Put the registers which are forbidden specifically for this IRG in a bitset.
  */
 void be_abi_put_ignore_regs(be_abi_irg_t *abi, const arch_register_class_t *cls, bitset_t *bs);
 
 ir_node *be_abi_get_callee_save_irn(be_abi_irg_t *abi, const arch_register_t *reg);
+ir_node *be_abi_get_ignore_irn(be_abi_irg_t *abi, const arch_register_t *reg);
+ir_node *be_abi_get_start_barrier(be_abi_irg_t *abi);
 
 #define be_abi_reg_map_get(map, reg)      pmap_get((map), (void *) (reg))
 #define be_abi_reg_map_set(map, reg, irn)  pmap_insert((map), (void *) (reg), (irn))
 
+/** The number of parts of the stack layout. */
+#define N_FRAME_TYPES 3
+
+/**
+ * This type describes the stack layout.
+ * The stack is divided into 3 parts:
+ * - arg_type:     A struct type describing the stack arguments and it's order.
+ * - between_type: A struct type describing the stack layout between arguments
+ *                 and frame type. In architectures that put the return address
+ *                 automatically on the stack, the return address is put here.
+ * - frame_type:   A class type describing the frame layout
+ */
+struct _be_stack_layout_t {
+       ir_type *arg_type;                 /**< A type describing the stack argument layout. */
+       ir_type *between_type;             /**< A type describing the "between" layout. */
+       ir_type *frame_type;               /**< The frame type. */
+
+       ir_type *order[N_FRAME_TYPES];     /**< arg, between and frame types ordered. */
+
+       int initial_offset;
+       int stack_dir;                     /**< -1 for decreasing, 1 for increasing. */
+       ir_entity **param_map;             /**< An array mapping type parameters to arg_type entries */
+};
+
+/**
+ * Returns the stack layout from a abi environment.
+ */
+const be_stack_layout_t *be_abi_get_stack_layout(const be_abi_irg_t *abi);
+
+/**
+ * Returns non-zero if the ABI has omitted the frame pointer in
+ * the current graph.
+ */
+int be_abi_omit_fp(const be_abi_irg_t *abi);
+
 #endif /* _BEABI_H */