/*
- * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
- *
* This file is part of libFirm.
- *
- * This file may be distributed and/or modified under the terms of the
- * GNU General Public License version 2 as published by the Free Software
- * Foundation and appearing in the file LICENSE.GPL included in the
- * packaging of this file.
- *
- * Licensees holding valid libFirm Professional Edition licenses may use
- * this file in accordance with the libFirm Commercial License.
- * Agreement provided with the Software.
- *
- * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
- * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE.
+ * Copyright (C) 2012 University of Karlsruhe.
*/
/**
* @file
* @brief declarations for SPARC backend -- private header
- * @version $Id$
+ * @author Hannes Rapp, Matthias Braun
*/
-#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;
+typedef struct calling_convention_t calling_convention_t;
+/** Floating point instruction set. */
+enum sparc_fp_architectures {
+ SPARC_FPU_ARCH_NONE = 0,
+ SPARC_FPU_ARCH_FPU = 0x00000001,
+ SPARC_FPU_ARCH_SOFTFLOAT = 0x00000002,
+};
-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;
+ int fpu_arch; /**< FPU architecture */
};
+extern const arch_irn_ops_t sparc_irn_ops;
/**
- * this is a struct to minimize the number of parameters
- * for transformation walker
+ * 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
*/
-struct sparc_transform_env_t {
- dbg_info *dbg; /**< The node debug info */
- ir_graph *irg; /**< The irg, the node should be created in */
- ir_node *block; /**< The block, the node should belong to */
- ir_node *irn; /**< The irn, to be transformed */
- ir_mode *mode; /**< The mode of the irn */
-};
+#define SPARC_IMMEDIATE_MIN -4096
+#define SPARC_IMMEDIATE_MAX 4095
+#define SPARC_MIN_STACKSIZE 92
+#define SPARC_AGGREGATE_RETURN_OFFSET 64
+#define SPARC_PARAMS_SPILL_OFFSET 68
+#define SPARC_SAVE_AREA_SIZE 64
+#define SPARC_N_PARAM_REGS 6
+#define SPARC_STACK_ALIGNMENT 8
+#define SPARC_REGISTER_SIZE 4
+
+static inline bool sparc_is_value_imm_encodeable(int32_t value)
+{
+ return SPARC_IMMEDIATE_MIN <= value && value <= SPARC_IMMEDIATE_MAX;
+}
+
+void sparc_finish_graph(ir_graph *irg);
+
+void sparc_introduce_prolog_epilog(ir_graph *irg);
+
+void sparc_lower_64bit(void);
-void sparc_finish_irg(sparc_code_gen_t *cg);
+bool sparc_variadic_fixups(ir_graph *irg, calling_convention_t *cconv);
+void sparc_create_stacklayout(ir_graph *irg, calling_convention_t *cconv);
+void sparc_adjust_stack_entity_offsets(ir_graph *irg);
+void sparc_fix_stack_bias(ir_graph *irg);
#endif
projects / libfirm / blobdiff