implemented a function to retrieve estimated costs of an op

[libfirm] / ir / be / be.h

diff --git a/ir/be/be.h b/ir/be/be.h
index 3df6732..ae25aa9 100644 (file)
--- a/ir/be/be.h
+++ b/ir/be/be.h
@@ -3,8 +3,33 @@
 #define _BE_MAIN_H
 
 #include <stdio.h>
+#include "irarch.h"
+#include "archop.h"
+#include "lower_dw.h"
 #include "dbginfo.h"
 
+/**
+ * This structure contains parameters that should be
+ * propagated to the libFirm parameter set.
+ */
+typedef struct backend_params {
+       /** Additional opcodes settings. */
+       const arch_ops_info *arch_op_settings;
+
+       /** Settings for architecture dependent optimizations */
+       const arch_dep_params_t *dep_param;
+
+       /** if set, the backend cannot handle DWORD access */
+       unsigned do_dw_lowering;
+
+       /** the architecture specific intrinsic function creator */
+       create_intrinsic_fkt *arch_create_intrinsic_fkt;
+
+       /** the context parameter for the create intrinsic function */
+       void *create_intrinsic_ctx;
+
+} backend_params;
+
 /**
  * Register the Firm backend command line options.
  */
@@ -17,8 +42,11 @@ int be_parse_arg(const char *arg);
 
 /**
  * Initialize the Firm backend. Must be run BEFORE init_firm()!
+ *
+ * @return libFirm configuration parameters for the selected
+ *         backend
  */
-void be_init(void);
+const backend_params *be_init(void);
 
 /**
  * Main interface to the frontend.