X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeabihelper.h;h=7a018f859d79f96707c65899e747ec63fa5715ce;hb=b151d11c50d89b9dffadfb63f7ccfd81ea8db44f;hp=09f8a86ea549105f2c1e0dbfc44662ad08244408;hpb=6d0764bb31c3b05471dba739a08427a736e551a7;p=libfirm

diff --git a/ir/be/beabihelper.h b/ir/be/beabihelper.h
index 09f8a86ea..7a018f859 100644
--- a/ir/be/beabihelper.h
+++ b/ir/be/beabihelper.h
@@ -29,11 +29,18 @@
 
 #include "firm_types.h"
 #include "be_types.h"
+#include "bearch.h"
 
 typedef struct beabi_helper_env_t beabi_helper_env_t;
 
+/**
+ * Creates a helper object for the ABI constraint handling.
+ */
 beabi_helper_env_t *be_abihelper_prepare(ir_graph *irg);
 
+/**
+ * Terminates a helper object for the ABI constraint handling.
+ */
 void be_abihelper_finish(beabi_helper_env_t *env);
 
 /**
@@ -42,11 +49,11 @@ void be_abihelper_finish(beabi_helper_env_t *env);
  *  - Callee-Save registers (we need to restore that value at the end)
  *  - Parameters passed in registers
  *  - stack pointer, base pointer, ...
- * It is possible to specify additional irn flags (usefull to mark a value
+ * It is possible to specify additional irn flags (useful to mark a value
  * as ignore or produces_sp).
  */
 void be_prolog_add_reg(beabi_helper_env_t *env, const arch_register_t *reg,
-                       arch_irn_flags_t flags);
+                       arch_register_req_type_t flags);
 
 /**
  * Creates a start node.
@@ -55,15 +62,9 @@ void be_prolog_add_reg(beabi_helper_env_t *env, const arch_register_t *reg,
 ir_node *be_prolog_create_start(beabi_helper_env_t *env, dbg_info *dbgi,
                                 ir_node *block);
 
-/**
- * Creates a barrier node which lets all registers specified by prolog_add_reg
- * pass through
- */
-ir_node *be_prolog_create_barrier(beabi_helper_env_t *env, ir_node *block);
-
 /**
  * Get "value" of a register.
- * This usually creates a Proj node for the start-node or barrier-node.
+ * This usually creates a Proj node for the start-node.
  * Or returns the value set by a abi_helper_set_reg_value call
  */
 ir_node *be_prolog_get_reg_value(beabi_helper_env_t *env,
@@ -86,7 +87,7 @@ void be_prolog_set_memory(beabi_helper_env_t *env, ir_node *value);
  *  - stack pointer, base pointer
  */
 void be_epilog_add_reg(beabi_helper_env_t *env, const arch_register_t *reg,
-                       arch_irn_flags_t flags, ir_node *value);
+                       arch_register_req_type_t flags, ir_node *value);
 
 void be_epilog_set_reg_value(beabi_helper_env_t *env,
                              const arch_register_t *reg, ir_node *value);
@@ -100,18 +101,27 @@ ir_node *be_epilog_get_memory(beabi_helper_env_t *env);
 
 void be_epilog_begin(beabi_helper_env_t *env);
 
-ir_node *be_epilog_create_barrier(beabi_helper_env_t *env, ir_node *block);
-
 /**
  * Create return node and finishes epilog handling
  */
 ir_node *be_epilog_create_return(beabi_helper_env_t *env, dbg_info *dbgi,
                                  ir_node *block);
 
-
 /**
  * Adds a X->Proj->Keep for each output value of X which has no Proj yet
  */
 void be_add_missing_keeps(ir_graph *irg);
 
+/**
+ * Collect firm nodes that will probably modify the stack.
+ * Put them into an order that respects all their dependencies.
+ */
+void be_collect_stacknodes(beabi_helper_env_t *env);
+
+/**
+ * return node that should produce the predecessor stack node in a block.
+ * returns NULL if there's no predecessor in the current block.
+ */
+ir_node *be_get_stack_pred(const beabi_helper_env_t *env, const ir_node *node);
+
 #endif