/*
- * 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.
*
/**
* @file
- * @brief declarations for arm node attributes
- * @author Oliver Richter, Tobias Gneist
+ * @brief declarations for ARM node attributes
+ * @author Oliver Richter, Tobias Gneist, Michael Beck
* @version $Id$
*/
#ifndef FIRM_BE_ARM_ARM_NODES_ATTR_H
ARM_SHF_LSL = 3, /**< logical shift left */
ARM_SHF_LSR = 4, /**< logical shift right */
ARM_SHF_ROR = 5, /**< rotate right */
- ARM_SHF_RRX = 6, /**< rotate with sign extend */
+ ARM_SHF_RRX = 6, /**< rotate right through carry bits */
} arm_shift_modifier;
/** True, if the modifier implies a shift argument */
/** set the shift modifier to flags */
#define ARM_SET_SHF_MOD(attr, mod) ((attr)->instr_fl = (((attr)->instr_fl & ~7) | (mod)))
+/** fpa immediate bit */
+#define ARM_FPA_IMM (1 << 3) /**< fpa floating point immediate */
+
+#define ARM_GET_FPA_IMM(attr) ((attr)->instr_fl & ARM_FPA_IMM)
+#define ARM_SET_FPA_IMM(attr) ((attr)->instr_fl |= ARM_FPA_IMM)
+#define ARM_CLR_FPA_IMM(attr) ((attr)->instr_fl &= ~ARM_FPA_IMM)
/**
* Possible ARM condition codes.
} arm_condition;
/** Get the condition code from flags */
-#define ARM_GET_COND(attr) (((attr)->instr_fl >> 3) & 15)
+#define ARM_GET_COND(attr) (((attr)->instr_fl >> 4) & 15)
/** Set the condition code to flags */
-#define ARM_SET_COND(attr, code) ((attr)->instr_fl = (((attr)->instr_fl & ~(15 << 3)) | ((code) << 3)))
+#define ARM_SET_COND(attr, code) ((attr)->instr_fl = (((attr)->instr_fl & ~(15 << 4)) | ((code) << 4)))
+
+/** Encoding for fpa immediates */
+enum fpa_immediates {
+ fpa_null = 0,
+ fpa_one,
+ fpa_two,
+ fpa_three,
+ fpa_four,
+ fpa_five,
+ fpa_ten,
+ fpa_half,
+ fpa_max
+};
/** Generic ARM node attributes. */
typedef struct _arm_attr_t {
ir_mode *op_mode; /**< operation mode if different from node's mode */
unsigned instr_fl; /**< condition code, shift modifier */
- tarval *value; /**< immediate */
+ long imm_value; /**< immediate */
int *out_flags; /**< flags for each produced value */
const arch_register_t **slots; /**< register slots for assigned registers */
/** Attributes for a SymConst */
typedef struct _arm_SymConst_attr_t {
- arm_attr_t attr;
+ arm_attr_t attr; /**< base attributes */
ident *symconst_id; /**< for SymConsts: its ident */
} arm_SymConst_attr_t;
/** Attributes for a CondJmp */
typedef struct _arm_CondJmp_attr_t {
- arm_attr_t attr;
+ arm_attr_t attr; /**< base attributes */
int proj_num;
} arm_CondJmp_attr_t;
/** Attributes for a SwitchJmp */
typedef struct _arm_SwitchJmp_attr_t {
- arm_attr_t attr;
+ arm_attr_t attr; /**< base attributes */
int n_projs;
- long default_proj_num;
+ long default_proj_num;
} arm_SwitchJmp_attr_t;
+/** Attributes for a fpaConst */
+typedef struct _arm_fpaConst_attr_t {
+ arm_attr_t attr; /**< base attributes */
+ tarval *tv; /**< the tarval representing the FP const */
+} arm_fpaConst_attr_t;
+
/**
* Returns the shift modifier string.
*/
const char *arm_shf_mod_name(arm_shift_modifier mod);
+/**
+ * Return the fpa immediate from the encoding.
+ */
+const char *arm_get_fpa_imm_name(long imm_value);
+
+#define CAST_ARM_ATTR(type,ptr) ((type *)(ptr))
+#define CONST_CAST_ARM_ATTR(type,ptr) ((const type *)(ptr))
+
#endif