tree * GTY((skip(""))) use;
} use_operand_p;
+extern def_operand_p NULL_DEF_OPERAND_P;
+extern use_operand_p NULL_USE_OPERAND_P;
/* This represents the DEF operands of a stmt. */
typedef struct def_optype_d GTY(())
typedef use_optype_t *use_optype;
+/* Operand type which stores a def and a use tree. */
+typedef struct v_may_def_operand_type GTY(())
+{
+ tree def;
+ tree use;
+} v_may_def_operand_type_t;
+
/* This represents the MAY_DEFS for a stmt. */
typedef struct v_may_def_optype_d GTY(())
{
unsigned num_v_may_defs;
- tree GTY((length ("%h.num_v_may_defs * 2"))) v_may_defs[1];
+ struct v_may_def_operand_type GTY((length ("%h.num_v_may_defs")))
+ v_may_defs[1];
} v_may_def_optype_t;
typedef v_may_def_optype_t *v_may_def_optype;
typedef v_must_def_optype_t *v_must_def_optype;
+/* This represents the operand cache fora stmt. */
+typedef struct stmt_operands_d GTY(())
+{
+ /* Statement operands. */
+ struct def_optype_d * GTY (()) def_ops;
+ struct use_optype_d * GTY (()) use_ops;
+
+ /* Virtual operands (V_MAY_DEF, VUSE, and V_MUST_DEF). */
+ struct v_may_def_optype_d * GTY (()) v_may_def_ops;
+ struct vuse_optype_d * GTY (()) vuse_ops;
+ struct v_must_def_optype_d * GTY (()) v_must_def_ops;
+} stmt_operands_t;
+
+typedef stmt_operands_t *stmt_operands_p;
+
#define USE_FROM_PTR(OP) get_use_from_ptr (OP)
#define DEF_FROM_PTR(OP) get_def_from_ptr (OP)
#define SET_USE(OP, V) ((*((OP).use)) = (V))
extern void init_ssa_operands (void);
extern void fini_ssa_operands (void);
-extern void verify_start_operands (tree);
-extern void finalize_ssa_stmt_operands (tree);
-void add_vuse (tree, tree);
extern void get_stmt_operands (tree);
-extern void remove_vuses (tree);
-extern void remove_v_may_defs (tree);
-extern void remove_v_must_defs (tree);
+extern void copy_virtual_operands (tree, tree);
+extern void create_ssa_artficial_load_stmt (stmt_operands_p, tree);
+
+
+/* This structure is used in the operand iterator loops. It contains the
+ items required to determine which operand is retrieved next. During
+ optimization, this structure is scalarized, and any unused fields are
+ optimized away, resulting in little overhead. */
+
+typedef struct ssa_operand_iterator_d
+{
+ int num_use;
+ int num_def;
+ int num_vuse;
+ int num_v_mayu;
+ int num_v_mayd;
+ int num_v_must;
+ int use_i;
+ int def_i;
+ int vuse_i;
+ int v_mayu_i;
+ int v_mayd_i;
+ int v_must_i;
+ stmt_operands_p ops;
+ bool done;
+} ssa_op_iter;
+
+/* These flags are used to determine which operands are returned during
+ execution of the loop. */
+#define SSA_OP_USE 0x01 /* Real USE operands. */
+#define SSA_OP_DEF 0x02 /* Real DEF operands. */
+#define SSA_OP_VUSE 0x04 /* VUSE operands. */
+#define SSA_OP_VMAYUSE 0x08 /* USE portion of V_MAY_DEFS. */
+#define SSA_OP_VMAYDEF 0x10 /* DEF portion of V_MAY_DEFS. */
+#define SSA_OP_VMUSTDEF 0x20 /* V_MUST_DEF definitions. */
+
+/* These are commonly grouped operand flags. */
+#define SSA_OP_VIRTUAL_USES (SSA_OP_VUSE | SSA_OP_VMAYUSE)
+#define SSA_OP_VIRTUAL_DEFS (SSA_OP_VMAYDEF | SSA_OP_VMUSTDEF)
+#define SSA_OP_ALL_USES (SSA_OP_VIRTUAL_USES | SSA_OP_USE)
+#define SSA_OP_ALL_DEFS (SSA_OP_VIRTUAL_DEFS | SSA_OP_DEF)
+#define SSA_OP_ALL_OPERANDS (SSA_OP_ALL_USES | SSA_OP_ALL_DEFS)
+
+/* This macro executes a loop over the operands of STMT specified in FLAG,
+ returning each operand as a 'tree' in the variable TREEVAR. ITER is an
+ ssa_op_iter structure used to control the loop. */
+#define FOR_EACH_SSA_TREE_OPERAND(TREEVAR, STMT, ITER, FLAGS) \
+ for (TREEVAR = op_iter_init_tree (&(ITER), STMT, FLAGS); \
+ !op_iter_done (&(ITER)); \
+ TREEVAR = op_iter_next_tree (&(ITER)))
+
+/* This macro executes a loop over the operands of STMT specified in FLAG,
+ returning each operand as a 'use_operand_p' in the variable USEVAR.
+ ITER is an ssa_op_iter structure used to control the loop. */
+#define FOR_EACH_SSA_USE_OPERAND(USEVAR, STMT, ITER, FLAGS) \
+ for (USEVAR = op_iter_init_use (&(ITER), STMT, FLAGS); \
+ !op_iter_done (&(ITER)); \
+ USEVAR = op_iter_next_use (&(ITER)))
+
+/* This macro executes a loop over the operands of STMT specified in FLAG,
+ returning each operand as a 'def_operand_p' in the variable DEFVAR.
+ ITER is an ssa_op_iter structure used to control the loop. */
+#define FOR_EACH_SSA_DEF_OPERAND(DEFVAR, STMT, ITER, FLAGS) \
+ for (DEFVAR = op_iter_init_def (&(ITER), STMT, FLAGS); \
+ !op_iter_done (&(ITER)); \
+ DEFVAR = op_iter_next_def (&(ITER)))
+
+/* This macro executes a loop over the V_MAY_DEF operands of STMT. The def
+ and use for each V_MAY_DEF is returned in DEFVAR and USEVAR.
+ ITER is an ssa_op_iter structure used to control the loop. */
+#define FOR_EACH_SSA_MAYDEF_OPERAND(DEFVAR, USEVAR, STMT, ITER) \
+ for (op_iter_init_maydef (&(ITER), STMT, &(USEVAR), &(DEFVAR)); \
+ !op_iter_done (&(ITER)); \
+ op_iter_next_maydef (&(USEVAR), &(DEFVAR), &(ITER)))
#endif /* GCC_TREE_SSA_OPERANDS_H */
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