X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fsparc%2Fbearch_sparc_t.h;h=650ec68cf43f64b2da0238156626877078ff0b04;hb=2ba0d75357dc87479522d0db5b6e4ba6de5c9585;hp=aae05e84a8399222b7459afa2946648d3d025067;hpb=65a52a96e8ab7ed601d7f98c516d37c46b674b4a;p=libfirm

diff --git a/ir/be/sparc/bearch_sparc_t.h b/ir/be/sparc/bearch_sparc_t.h
index aae05e84a..650ec68cf 100644
--- a/ir/be/sparc/bearch_sparc_t.h
+++ b/ir/be/sparc/bearch_sparc_t.h
@@ -20,40 +20,24 @@
 /**
  * @file
  * @brief   declarations for SPARC backend -- private header
+ * @author  Hannes Rapp, Matthias Braun
  * @version $Id$
  */
-#ifndef FIRM_BE_SPARC_BEARCH_TEMPLATE_T_H
-#define FIRM_BE_SPARC_BEARCH_TEMPLATE_T_H
+#ifndef FIRM_BE_SPARC_BEARCH_SPARC_T_H
+#define FIRM_BE_SPARC_BEARCH_SPARC_T_H
 
-#include "debug.h"
+#include <stdbool.h>
 #include "sparc_nodes_attr.h"
 #include "be.h"
-#include "../beemitter.h"
-#include "set.h"
-
-// sparc ABI requires a min stacksize to
-// save registers in case of a trap etc.
-// by now we assume only non-leaf procedures: 92 + 4 (padding)
-#define SPARC_MIN_STACKSIZE 112
 
 typedef struct sparc_transform_env_t  sparc_transform_env_t;
-typedef struct _sparc_isa_t sparc_isa_t;
-
-typedef struct _sparc_code_gen_t {
-    const arch_code_generator_if_t *impl;           /**< implementation */
-    ir_graph                       *irg;            /**< current irg */
-    set                            *reg_set;        /**< set to memorize registers for FIRM nodes (e.g. phi) */
-    sparc_isa_t                      *isa;            /**< the isa instance */
-    char                           dump;            /**< set to 1 if graphs should be dumped */
-} sparc_code_gen_t;
-
+typedef struct sparc_isa_t            sparc_isa_t;
 
-struct _sparc_isa_t {
-    arch_env_t     arch_env;      /**< must be derived from arch_env_t */
-    sparc_code_gen_t *cg;           /**< current code generator */
+struct sparc_isa_t {
+	arch_env_t  base;      /**< must be derived from arch_env_t */
+    pmap       *constants;
 };
 
-
 /**
  * this is a struct to minimize the number of parameters
  * for transformation walker
@@ -66,6 +50,30 @@ struct sparc_transform_env_t {
 	ir_mode  *mode;     /**< The mode of the irn */
 };
 
-void sparc_finish_irg(sparc_code_gen_t *cg);
+/**
+ * SPARC ABI requires some space which is always available at the top of
+ * the stack. It contains:
+ * 16*4 bytes space for spilling the register window
+ * 1*4 byte   holding a pointer to space for aggregate returns (the space is
+ *            always reserved, regardless whether we have an aggregate return
+ *            or not)
+ * 6*4 bytes  Space for spilling parameters 0-5. For the cases when someone
+ *            takes the address of a parameter. I guess this is also there so
+ *            the implementation of va_args gets easier -> We can simply store
+ *            param 0-5 in this spaces and then handle va_next by simply
+ *            incrementing the stack pointer
+ */
+#define SPARC_MIN_STACKSIZE 92
+#define SPARC_IMMEDIATE_MIN -4096
+#define SPARC_IMMEDIATE_MAX  4095
+
+static inline bool sparc_is_value_imm_encodeable(int32_t value)
+{
+	return SPARC_IMMEDIATE_MIN <= value && value <= SPARC_IMMEDIATE_MAX;
+}
+
+void sparc_finish(ir_graph *irg);
+
+void sparc_introduce_prolog_epilog(ir_graph *irg);
 
 #endif