- fixed r22803

[libfirm] / ir / be / beabi.h

diff --git a/ir/be/beabi.h b/ir/be/beabi.h
index cfee128..69b915d 100644 (file)
--- a/ir/be/beabi.h
+++ b/ir/be/beabi.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -84,14 +84,15 @@ 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 map mapping all callee_save/ignore/parameter registers to their defining nodes.
-        * @return        The register which shall be used as a stack frame base.
+        * @param self       The callback object.
+        * @param mem        A pointer to the mem node. Update this if you define new memory.
+        * @param reg_map    A map mapping all callee_save/ignore/parameter registers to their defining nodes.
+        * @param stack_bias Points to the current stack bias, can be modified if needed.
+        * @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.
         */
-       const arch_register_t *(*prologue)(void *self, ir_node **mem, pmap *reg_map);
+       const arch_register_t *(*prologue)(void *self, ir_node **mem, pmap *reg_map, int *stack_bias);
 
        /**
         * Generate the epilogue.
@@ -157,6 +158,11 @@ be_abi_call_flags_t be_abi_call_get_flags(const be_abi_call_t *call);
 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);
+
+/**
+ * Fix the stack bias for all nodes accessing the stack frame using the
+ * stack pointer.
+ */
 void be_abi_fix_stack_bias(be_abi_irg_t *env);
 void be_abi_free(be_abi_irg_t *abi);
 
@@ -171,6 +177,8 @@ void be_abi_fix_stack_nodes(be_abi_irg_t *env);
  */
 void be_abi_put_ignore_regs(be_abi_irg_t *abi, const arch_register_class_t *cls, bitset_t *bs);
 
+void be_abi_set_non_ignore_regs(be_abi_irg_t *abi, const arch_register_class_t *cls, unsigned *raw_bitset);
+
 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);
 
@@ -187,7 +195,7 @@ ir_node *be_abi_get_ignore_irn(be_abi_irg_t *abi, const arch_register_t *reg);
  * - 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
+ * - 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. */
@@ -196,9 +204,10 @@ struct _be_stack_layout_t {
 
        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 */
+       int initial_offset;                /**< the initial difference between stack pointer and frame pointer */
+       int initial_bias;                  /**< the initial stack bias */
+       int stack_dir;                     /**< -1 for decreasing, 1 for increasing. */
 };
 
 /**