2009-08-17 Emmanuel Briot <briot@adacore.com>

[pf3gnuchains/gcc-fork.git] / gcc / expr.h

diff --git a/gcc/expr.h b/gcc/expr.h
index 30dbaef..7058354 100644 (file)
--- a/gcc/expr.h
+++ b/gcc/expr.h
@@ -1,6 +1,6 @@
 /* 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.
@@ -66,10 +66,10 @@ enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM,
 
 #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
 
@@ -78,10 +78,10 @@ enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM,
 
 #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
 
@@ -89,7 +89,7 @@ enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM,
    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};
@@ -298,6 +298,9 @@ extern rtx expand_simple_unop (enum machine_mode, enum rtx_code, rtx, rtx,
    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);
 
@@ -404,6 +407,7 @@ enum block_op_methods
   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 *);
 
@@ -572,9 +576,6 @@ extern void jumpif (tree, rtx);
    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);
 
@@ -582,10 +583,6 @@ extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,
 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"
 
@@ -695,6 +692,11 @@ extern void set_mem_attributes (rtx, tree, int);
    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);
 
@@ -717,8 +719,17 @@ extern rtx force_reg (enum machine_mode, rtx);
 /* Return given rtx, copied into a new temp reg if it was in memory.  */
 extern rtx force_not_mem (rtx);
 
+/* Return mode and signedness to use when an argument or result in the
+   given mode is promoted.  */
+extern enum machine_mode promote_function_mode (const_tree, enum machine_mode, int *,
+                                               const_tree, int);
+
+/* Return mode and signedness to use when an object in the given mode
+   is promoted.  */
+extern enum machine_mode promote_mode (const_tree, enum machine_mode, int *);
+
 /* Return mode and signedness to use when object is promoted.  */
-extern enum machine_mode promote_mode (const_tree, enum machine_mode, int *, int);
+enum machine_mode promote_decl_mode (const_tree, int *);
 
 /* Remove some bytes from the stack.  An rtx says how many.  */
 extern void adjust_stack (rtx);
@@ -751,7 +762,7 @@ extern void probe_stack_range (HOST_WIDE_INT, rtx);
 
 /* Return an rtx that refers to the value returned by a library call
    in its original home.  This becomes invalid if any more code is emitted.  */
-extern rtx hard_libcall_value (enum machine_mode);
+extern rtx hard_libcall_value (enum machine_mode, rtx);
 
 /* Return the mode desired by operand N of a particular bitfield
    insert/extract insn, or MAX_MACHINE_MODE if no such insn is
@@ -772,6 +783,8 @@ extern rtx expand_mult_highpart_adjust (enum machine_mode, rtx, rtx, rtx, rtx, i
 
 extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
 extern int safe_from_p (const_rtx, tree, int);
+extern bool split_comparison (enum rtx_code, enum machine_mode,
+                             enum rtx_code *, enum rtx_code *);
 
 /* Call this once to initialize the contents of the optabs
    appropriately for the current target machine.  */
@@ -780,6 +793,7 @@ extern void init_all_optabs (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);