EXPAND_INITIALIZER is similar but also record any labels on forced_labels.
EXPAND_CONST_ADDRESS means it is ok to return a MEM whose address
is a constant that is not a legitimate address.
- EXPAND_WRITE means we are only going to write to the resulting rtx. */
+ EXPAND_WRITE means we are only going to write to the resulting rtx.
+ EXPAND_MEMORY means we are interested in a memory result, even if
+ the memory is constant and we could have propagated a constant value. */
enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM = 2, EXPAND_SUM,
- EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE};
+ EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE,
+ EXPAND_MEMORY};
/* Prevent the compiler from deferring stack pops. See
inhibit_defer_pop for more information. */
more information. */
#define OK_DEFER_POP (inhibit_defer_pop -= 1)
\f
+enum direction {none, upward, downward};
+
#ifdef TREE_CODE /* Don't lose if tree.h not included. */
/* Structure to record the size of a sequence of arguments
as the sum of a tree-expression and a constant. This structure is
HOST_WIDE_INT constant;
tree var;
};
+
+/* Package up various arg related fields of struct args for
+ locate_and_pad_parm. */
+struct locate_and_pad_arg_data
+{
+ /* Size of this argument on the stack, rounded up for any padding it
+ gets. If REG_PARM_STACK_SPACE is defined, then register parms are
+ counted here, otherwise they aren't. */
+ struct args_size size;
+ /* Offset of this argument from beginning of stack-args. */
+ struct args_size offset;
+ /* Offset to the start of the stack slot. Different from OFFSET
+ if this arg pads downward. */
+ struct args_size slot_offset;
+ /* The amount that the stack pointer needs to be adjusted to
+ force alignment for the next argument. */
+ struct args_size alignment_pad;
+};
#endif
/* Add the value of the tree INC to the `struct args_size' TO. */
usually pad upward, but pad short args downward on
big-endian machines. */
-enum direction {none, upward, downward}; /* Value has this type. */
-
#ifndef FUNCTION_ARG_PADDING
#define FUNCTION_ARG_PADDING(MODE, TYPE) \
(! BYTES_BIG_ENDIAN \
#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) PARM_BOUNDARY
#endif
+/* Define to nonzero if complex arguments should be split into their
+ corresponding components. */
+#ifndef SPLIT_COMPLEX_ARGS
+#define SPLIT_COMPLEX_ARGS 0
+#endif
+tree split_complex_types (tree);
+tree split_complex_values (tree);
+
/* Provide a default value for STRICT_ARGUMENT_NAMING. */
#ifndef STRICT_ARGUMENT_NAMING
#define STRICT_ARGUMENT_NAMING 0
BLOCK_OP_CALL_PARM
};
+extern void init_block_move_fn PARAMS ((const char *));
+extern void init_block_clear_fn PARAMS ((const char *));
+
extern rtx emit_block_move PARAMS ((rtx, rtx, rtx, enum block_op_methods));
/* Copy all or part of a value X into registers starting at REGNO.
/* Copy all or part of a BLKmode value X out of registers starting at REGNO.
The number of registers to be filled is NREGS. */
-extern void move_block_from_reg PARAMS ((int, rtx, int, int));
+extern void move_block_from_reg PARAMS ((int, rtx, int));
/* Generate a non-consecutive group of registers represented by a PARALLEL. */
extern rtx gen_group_rtx PARAMS ((rtx));
#ifdef TREE_CODE
/* Copy BLKmode object from a set of registers. */
-extern rtx copy_blkmode_from_reg PARAMS ((rtx,rtx,tree));
+extern rtx copy_blkmode_from_reg PARAMS ((rtx, rtx, tree));
#endif
/* Mark REG as holding a parameter for the next CALL_INSN. */
If OBJECT has BLKmode, SIZE is its length in bytes. */
extern rtx clear_storage PARAMS ((rtx, rtx));
+/* Determine whether the LEN bytes can be moved by using several move
+ instructions. Return nonzero if a call to move_by_pieces should
+ succeed. */
+extern int can_move_by_pieces PARAMS ((unsigned HOST_WIDE_INT, unsigned int));
+
/* Return nonzero if it is desirable to store LEN bytes generated by
CONSTFUN with several move instructions by store_by_pieces
function. CONSTFUNDATA is a pointer which will be passed as argument
/* Generate several move instructions to store LEN bytes generated by
CONSTFUN to block TO. (A MEM rtx with BLKmode). CONSTFUNDATA is a
pointer which will be passed as argument in every CONSTFUN call.
- ALIGN is maximum alignment we can assume. */
-extern void store_by_pieces PARAMS ((rtx, unsigned HOST_WIDE_INT,
- rtx (*) (PTR, HOST_WIDE_INT,
- enum machine_mode),
- PTR, unsigned int));
+ ALIGN is maximum alignment we can assume.
+ Returns TO + LEN. */
+extern rtx store_by_pieces PARAMS ((rtx, unsigned HOST_WIDE_INT,
+ rtx (*) (PTR, HOST_WIDE_INT,
+ enum machine_mode),
+ PTR, unsigned int, int));
/* Emit insns to set X from Y. */
extern rtx emit_move_insn PARAMS ((rtx, rtx));
rtx, int));
extern rtx expand_divmod PARAMS ((int, enum tree_code, enum machine_mode, rtx,
rtx, rtx, int));
-extern void locate_and_pad_parm PARAMS ((enum machine_mode, tree, int, tree,
- struct args_size *,
- struct args_size *,
- struct args_size *,
- struct args_size *));
+extern void locate_and_pad_parm PARAMS ((enum machine_mode, tree, int, int,
+ tree, struct args_size *,
+ struct locate_and_pad_arg_data *));
extern rtx expand_inline_function PARAMS ((tree, tree, rtx, int, tree, rtx));
/* Return the CODE_LABEL rtx for a LABEL_DECL, creating it if necessary. */
extern rtx label_rtx PARAMS ((tree));
+
+/* As label_rtx, but additionally the label is placed on the forced label
+ list of its containing function (i.e. it is treated as reachable even
+ if how is not obvious). */
+extern rtx force_label_rtx PARAMS ((tree));
#endif
/* Indicate how an input argument register was promoted. */
extern rtx expand_mult_add PARAMS ((rtx, rtx, rtx, rtx,enum machine_mode, int));
extern rtx expand_mult_highpart_adjust PARAMS ((enum machine_mode, rtx, rtx, rtx, rtx, int));
-extern rtx assemble_static_space PARAMS ((int));
+extern rtx assemble_static_space PARAMS ((unsigned HOST_WIDE_INT));
extern int safe_from_p PARAMS ((rtx, tree, int));
/* Call this once to initialize the contents of the optabs
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