X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeabi.h;h=b911ed027dec211d96583eaac623635358b655bb;hb=1ef3d57f913e2f533aba0ab6b22f4d66223b86ed;hp=cfee12874cb757904f5ac3cad81db6d1cf5508a4;hpb=5c87c3af579d582a642d29d5f1be31c3421d2c65;p=libfirm

diff --git a/ir/be/beabi.h b/ir/be/beabi.h
index cfee12874..b911ed027 100644
--- 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.
  *
@@ -75,23 +75,17 @@ struct _be_abi_callbacks_t {
 	 */
 	ir_type *(*get_between_type)(void *self);
 
-	/**
-	 * Put all registers which are saved by the prologue/epilogue in a set.
-	 * @param self The callback object.
-	 * @param regs A set.
-	 */
-	void (*regs_saved_by_me)(void *self, pset *regs);
-
 	/**
 	 * 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.
@@ -127,7 +121,7 @@ void be_abi_call_set_pop(be_abi_call_t *call, int pop);
 void be_abi_call_set_call_address_reg_class(be_abi_call_t *call, const arch_register_class_t *cls);
 
 /**
- * Describe the stack layout for a call parameter. Modifies the abi object.
+ * Record the that ABI transmits call argument pos on the stack. Modifies the abi object.
  *
  * @param call          the abi call object
  * @param pos           the parameter position
@@ -137,7 +131,23 @@ void be_abi_call_set_call_address_reg_class(be_abi_call_t *call, const arch_regi
  * @param space_after   size of allocated additional space after the parameter
  */
 void be_abi_call_param_stack(be_abi_call_t *call, int pos, ir_mode *load_mode, unsigned alignment, unsigned space_before, unsigned space_after);
+
+/**
+ * Record the that ABI transmits call argument pos in the given register.
+ *
+ * @param call          the abi call object
+ * @param pos           the parameter position
+ * @param reg           the register used
+ */
 void be_abi_call_param_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
+
+/**
+ * Record the that ABI transmits return value pos in the given register.
+ *
+ * @param call          the abi call object
+ * @param pos           the return value position
+ * @param reg           the register used
+ */
 void be_abi_call_res_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
 
 /**
@@ -157,6 +167,11 @@ 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 +186,8 @@ 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 +204,7 @@ 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 +213,10 @@ 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. */
 };
 
 /**