/* Definitions for code generation pass of GNU compiler.
Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
/* The default branch cost is 1. */
#ifndef BRANCH_COST
-#define BRANCH_COST 1
+#define BRANCH_COST(speed_p, predictable_p) 1
#endif
/* This is the 4th arg to `expand_expr'.
#ifndef MOVE_RATIO
#if defined (HAVE_movmemqi) || defined (HAVE_movmemhi) || defined (HAVE_movmemsi) || defined (HAVE_movmemdi) || defined (HAVE_movmemti)
-#define MOVE_RATIO 2
+#define MOVE_RATIO(speed) 2
#else
/* If we are optimizing for space (-Os), cut down the default move ratio. */
-#define MOVE_RATIO (optimize_size ? 3 : 15)
+#define MOVE_RATIO(speed) ((speed) ? 15 : 3)
#endif
#endif
#ifndef CLEAR_RATIO
#if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti)
-#define CLEAR_RATIO 2
+#define CLEAR_RATIO(speed) 2
#else
/* If we are optimizing for space, cut down the default clear ratio. */
-#define CLEAR_RATIO (optimize_size ? 3 : 15)
+#define CLEAR_RATIO(speed) ((speed) ? 15 :3)
#endif
#endif
SET_RATIO or more simple move-instruction sequences, we will do a movmem
or libcall instead. */
#ifndef SET_RATIO
-#define SET_RATIO MOVE_RATIO
+#define SET_RATIO(speed) MOVE_RATIO(speed)
#endif
\f
enum direction {none, upward, downward};
perform the operation described by CODE and MODE. */
extern int have_insn_for (enum rtx_code, enum machine_mode);
+extern rtx prepare_operand (int, rtx, int, enum machine_mode, enum machine_mode,
+ int);
+
/* Emit code to make a call to a constant function or a library call. */
extern void emit_libcall_block (rtx, rtx, rtx, rtx);
BLOCK_OP_TAILCALL
};
+extern GTY(()) tree block_clear_fn;
extern void init_block_move_fn (const char *);
extern void init_block_clear_fn (const char *);
the result is zero, or IF_TRUE_LABEL if the result is one. */
extern void do_jump (tree, rtx, rtx);
-/* Generate rtl to compare two rtx's, will call emit_cmp_insn. */
-extern rtx compare_from_rtx (rtx, rtx, enum rtx_code, int, enum machine_mode,
- rtx);
extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,
enum machine_mode, rtx, rtx, rtx);
extern int try_casesi (tree, tree, tree, tree, rtx, rtx, rtx);
extern int try_tablejump (tree, tree, tree, tree, rtx, rtx);
-/* Smallest number of adjacent cases before we use a jump table.
- XXX Should be a target hook. */
-extern unsigned int case_values_threshold (void);
-
/* Functions from alias.c */
#include "alias.h"
expecting that it'll be added back in later. */
extern void set_mem_attributes_minus_bitpos (rtx, tree, int, HOST_WIDE_INT);
+/* Return OFFSET if XEXP (MEM, 0) - OFFSET is known to be ALIGN
+ bits aligned for 0 <= OFFSET < ALIGN / BITS_PER_UNIT, or
+ -1 if not known. */
+extern int get_mem_align_offset (rtx, unsigned int);
+
/* Assemble the static constant template for function entry trampolines. */
extern rtx assemble_trampoline_template (void);
/* Call this to initialize an optab function entry. */
extern rtx init_one_libfunc (const char *);
+extern rtx set_user_assembler_libfunc (const char *, const char *);
extern int vector_mode_valid_p (enum machine_mode);