* lto-cgraph.c (lto_output_varpool_node): Always output constant pool

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

diff --git a/gcc/expr.h b/gcc/expr.h
index e3138a1..4fddde6 100644 (file)
--- a/gcc/expr.h
+++ b/gcc/expr.h
@@ -1,12 +1,13 @@
 /* Definitions for code generation pass of GNU compiler.
    Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
 /* Definitions for code generation pass of GNU compiler.
    Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,

-   1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.

 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free

-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later

 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -15,38 +16,32 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License

-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_EXPR_H
+#define GCC_EXPR_H
+
+/* For inhibit_defer_pop */
+#include "function.h"
+/* For XEXP, GEN_INT, rtx_code */
+#include "rtl.h"
+/* For optimize_size */
+#include "flags.h"
+/* For host_integerp, tree_low_cst, fold_convert, size_binop, ssize_int,
+   TREE_CODE, TYPE_SIZE, int_size_in_bytes,    */
+#include "tree.h"
+/* For GET_MODE_BITSIZE, word_mode */
+#include "machmode.h"

 
 /* The default branch cost is 1.  */
 #ifndef BRANCH_COST
 
 /* The default branch cost is 1.  */
 #ifndef BRANCH_COST

-#define BRANCH_COST 1
+#define BRANCH_COST(speed_p, predictable_p) 1

 #endif
 
 #endif
 

-/* Macros to access the slots of a QUEUED rtx.
-   Here rather than in rtl.h because only the expansion pass
-   should ever encounter a QUEUED.  */
-
-/* The variable for which an increment is queued.  */
-#define QUEUED_VAR(P) XEXP (P, 0)
-/* If the increment has been emitted, this is the insn
-   that does the increment.  It is zero before the increment is emitted.
-   If more than one insn is emitted, this is the first insn.  */
-#define QUEUED_INSN(P) XEXP (P, 1)
-/* If a pre-increment copy has been generated, this is the copy
-   (it is a temporary reg).  Zero if no copy made yet.  */
-#define QUEUED_COPY(P) XEXP (P, 2)
-/* This is the body to use for the insn to do the increment.
-   It is used to emit the increment.  */
-#define QUEUED_BODY(P) XEXP (P, 3)
-/* Next QUEUED in the queue.  */
-#define QUEUED_NEXT(P) XEXP (P, 4)
-

 /* This is the 4th arg to `expand_expr'.
    EXPAND_STACK_PARM means we are possibly expanding a call param onto
 /* This is the 4th arg to `expand_expr'.
    EXPAND_STACK_PARM means we are possibly expanding a call param onto

-   the stack.  Choosing a value of 2 isn't special;  It just allows
-   some code optimization in store_expr.
+   the stack.

    EXPAND_SUM means it is ok to return a PLUS rtx or MULT rtx.
    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
    EXPAND_SUM means it is ok to return a PLUS rtx or MULT rtx.
    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


@@ -54,7 +49,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
    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.  */
    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,
+enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM,

                      EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE,
                      EXPAND_MEMORY};
 
                      EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE,
                      EXPAND_MEMORY};
 


@@ -66,6 +61,37 @@ enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM = 2, EXPAND_SUM,
    more information.  */
 #define OK_DEFER_POP (inhibit_defer_pop -= 1)
 \f
    more information.  */
 #define OK_DEFER_POP (inhibit_defer_pop -= 1)
 \f

+/* If a memory-to-memory move would take MOVE_RATIO or more simple
+   move-instruction sequences, we will do a movmem or libcall instead.  */
+
+#ifndef MOVE_RATIO
+#if defined (HAVE_movmemqi) || defined (HAVE_movmemhi) || defined (HAVE_movmemsi) || defined (HAVE_movmemdi) || defined (HAVE_movmemti)
+#define MOVE_RATIO(speed) 2
+#else
+/* If we are optimizing for space (-Os), cut down the default move ratio.  */
+#define MOVE_RATIO(speed) ((speed) ? 15 : 3)
+#endif
+#endif
+
+/* If a clear memory operation would take CLEAR_RATIO or more simple
+   move-instruction sequences, we will do a setmem or libcall instead.  */
+
+#ifndef CLEAR_RATIO
+#if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti)
+#define CLEAR_RATIO(speed) 2
+#else
+/* If we are optimizing for space, cut down the default clear ratio.  */
+#define CLEAR_RATIO(speed) ((speed) ? 15 :3)
+#endif
+#endif
+
+/* If a memory set (to value other than zero) operation would take
+   SET_RATIO or more simple move-instruction sequences, we will do a movmem
+   or libcall instead.  */
+#ifndef SET_RATIO
+#define SET_RATIO(speed) MOVE_RATIO(speed)
+#endif
+\f

 enum direction {none, upward, downward};
 
 /* Structure to record the size of a sequence of arguments
 enum direction {none, upward, downward};
 
 /* Structure to record the size of a sequence of arguments


@@ -97,46 +123,48 @@ struct locate_and_pad_arg_data
   struct args_size alignment_pad;
   /* Which way we should pad this arg.  */
   enum direction where_pad;
   struct args_size alignment_pad;
   /* Which way we should pad this arg.  */
   enum direction where_pad;

+  /* slot_offset is at least this aligned.  */
+  unsigned int boundary;

 };
 
 /* Add the value of the tree INC to the `struct args_size' TO.  */
 
 };
 
 /* Add the value of the tree INC to the `struct args_size' TO.  */
 

-#define ADD_PARM_SIZE(TO, INC)                         \
-do {                                                   \
-  tree inc = (INC);                                    \
-  if (host_integerp (inc, 0))                          \
-    (TO).constant += tree_low_cst (inc, 0);            \
-  else if ((TO).var == 0)                              \
-    (TO).var = convert (ssizetype, inc);               \
-  else                                                 \
-    (TO).var = size_binop (PLUS_EXPR, (TO).var,                \
-                          convert (ssizetype, inc));   \
+#define ADD_PARM_SIZE(TO, INC)                                 \
+do {                                                           \
+  tree inc = (INC);                                            \
+  if (host_integerp (inc, 0))                                  \
+    (TO).constant += tree_low_cst (inc, 0);                    \
+  else if ((TO).var == 0)                                      \
+    (TO).var = fold_convert (ssizetype, inc);                  \
+  else                                                         \
+    (TO).var = size_binop (PLUS_EXPR, (TO).var,                        \
+                          fold_convert (ssizetype, inc));      \

 } while (0)
 
 } while (0)
 

-#define SUB_PARM_SIZE(TO, DEC)                         \
-do {                                                   \
-  tree dec = (DEC);                                    \
-  if (host_integerp (dec, 0))                          \
-    (TO).constant -= tree_low_cst (dec, 0);            \
-  else if ((TO).var == 0)                              \
-    (TO).var = size_binop (MINUS_EXPR, ssize_int (0),  \
-                          convert (ssizetype, dec));   \
-  else                                                 \
-    (TO).var = size_binop (MINUS_EXPR, (TO).var,       \
-                          convert (ssizetype, dec));   \
+#define SUB_PARM_SIZE(TO, DEC)                                 \
+do {                                                           \
+  tree dec = (DEC);                                            \
+  if (host_integerp (dec, 0))                                  \
+    (TO).constant -= tree_low_cst (dec, 0);                    \
+  else if ((TO).var == 0)                                      \
+    (TO).var = size_binop (MINUS_EXPR, ssize_int (0),          \
+                          fold_convert (ssizetype, dec));      \
+  else                                                         \
+    (TO).var = size_binop (MINUS_EXPR, (TO).var,               \
+                          fold_convert (ssizetype, dec));      \

 } while (0)
 
 /* Convert the implicit sum in a `struct args_size' into a tree
    of type ssizetype.  */
 #define ARGS_SIZE_TREE(SIZE)                                   \
 ((SIZE).var == 0 ? ssize_int ((SIZE).constant)                 \
 } while (0)
 
 /* Convert the implicit sum in a `struct args_size' into a tree
    of type ssizetype.  */
 #define ARGS_SIZE_TREE(SIZE)                                   \
 ((SIZE).var == 0 ? ssize_int ((SIZE).constant)                 \

- : size_binop (PLUS_EXPR, convert (ssizetype, (SIZE).var),     \
+ : size_binop (PLUS_EXPR, fold_convert (ssizetype, (SIZE).var),        \

               ssize_int ((SIZE).constant)))
 
 /* Convert the implicit sum in a `struct args_size' into an rtx.  */
 #define ARGS_SIZE_RTX(SIZE)                                    \
 ((SIZE).var == 0 ? GEN_INT ((SIZE).constant)                   \
               ssize_int ((SIZE).constant)))
 
 /* Convert the implicit sum in a `struct args_size' into an rtx.  */
 #define ARGS_SIZE_RTX(SIZE)                                    \
 ((SIZE).var == 0 ? GEN_INT ((SIZE).constant)                   \

- : expand_expr (ARGS_SIZE_TREE (SIZE), NULL_RTX, VOIDmode, 0))
+ : expand_normal (ARGS_SIZE_TREE (SIZE)))

 
 /* Supply a default definition for FUNCTION_ARG_PADDING:
    usually pad upward, but pad short args downward on
 
 /* Supply a default definition for FUNCTION_ARG_PADDING:
    usually pad upward, but pad short args downward on


@@ -164,20 +192,6 @@ do {                                                       \
 #define FUNCTION_ARG_BOUNDARY(MODE, TYPE)      PARM_BOUNDARY
 #endif
 
 #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);
-
-/* Nonzero if we do not know how to pass TYPE solely in registers.  */
-extern bool default_must_pass_in_stack (enum machine_mode, tree);
-#ifndef MUST_PASS_IN_STACK
-#define MUST_PASS_IN_STACK(MODE,TYPE) default_must_pass_in_stack(MODE, TYPE)
-#endif
-

 /* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save.
    Normally move_insn, so Pmode stack pointer.  */
 
 /* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save.
    Normally move_insn, so Pmode stack pointer.  */
 


@@ -194,30 +208,51 @@ extern bool default_must_pass_in_stack (enum machine_mode, tree);
 
 /* Provide default values for the macros controlling stack checking.  */
 
 
 /* Provide default values for the macros controlling stack checking.  */
 

+/* The default is neither full builtin stack checking...  */

 #ifndef STACK_CHECK_BUILTIN
 #define STACK_CHECK_BUILTIN 0
 #endif
 
 #ifndef STACK_CHECK_BUILTIN
 #define STACK_CHECK_BUILTIN 0
 #endif
 

-/* The default interval is one page.  */
-#ifndef STACK_CHECK_PROBE_INTERVAL
-#define STACK_CHECK_PROBE_INTERVAL 4096
+/* ...nor static builtin stack checking.  */
+#ifndef STACK_CHECK_STATIC_BUILTIN
+#define STACK_CHECK_STATIC_BUILTIN 0
+#endif
+
+/* The default interval is one page (4096 bytes).  */
+#ifndef STACK_CHECK_PROBE_INTERVAL_EXP
+#define STACK_CHECK_PROBE_INTERVAL_EXP 12

 #endif
 
 #endif
 

-/* The default is to do a store into the stack.  */
-#ifndef STACK_CHECK_PROBE_LOAD
-#define STACK_CHECK_PROBE_LOAD 0
+/* The default is not to move the stack pointer.  */
+#ifndef STACK_CHECK_MOVING_SP
+#define STACK_CHECK_MOVING_SP 0

 #endif
 
 #endif
 

-/* This value is arbitrary, but should be sufficient for most machines.  */
+/* This is a kludge to try to capture the discrepancy between the old
+   mechanism (generic stack checking) and the new mechanism (static
+   builtin stack checking).  STACK_CHECK_PROTECT needs to be bumped
+   for the latter because part of the protection area is effectively
+   included in STACK_CHECK_MAX_FRAME_SIZE for the former.  */
+#ifdef STACK_CHECK_PROTECT
+#define STACK_OLD_CHECK_PROTECT STACK_CHECK_PROTECT
+#else
+#define STACK_OLD_CHECK_PROTECT \
+ (USING_SJLJ_EXCEPTIONS ? 75 * UNITS_PER_WORD : 8 * 1024)
+#endif
+
+/* Minimum amount of stack required to recover from an anticipated stack
+   overflow detection.  The default value conveys an estimate of the amount
+   of stack required to propagate an exception.  */

 #ifndef STACK_CHECK_PROTECT
 #ifndef STACK_CHECK_PROTECT

-#define STACK_CHECK_PROTECT (75 * UNITS_PER_WORD)
+#define STACK_CHECK_PROTECT \
+ (USING_SJLJ_EXCEPTIONS ? 75 * UNITS_PER_WORD : 12 * 1024)

 #endif
 
 /* Make the maximum frame size be the largest we can and still only need
    one probe per function.  */
 #ifndef STACK_CHECK_MAX_FRAME_SIZE
 #define STACK_CHECK_MAX_FRAME_SIZE \
 #endif
 
 /* Make the maximum frame size be the largest we can and still only need
    one probe per function.  */
 #ifndef STACK_CHECK_MAX_FRAME_SIZE
 #define STACK_CHECK_MAX_FRAME_SIZE \

-  (STACK_CHECK_PROBE_INTERVAL - UNITS_PER_WORD)
+  ((1 << STACK_CHECK_PROBE_INTERVAL_EXP) - UNITS_PER_WORD)

 #endif
 
 /* This is arbitrary, but should be large enough everywhere.  */
 #endif
 
 /* This is arbitrary, but should be large enough everywhere.  */


@@ -232,6 +267,17 @@ extern bool default_must_pass_in_stack (enum machine_mode, tree);
 #define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100)
 #endif
 \f
 #define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100)
 #endif
 \f

+/* This structure is used to pass around information about exploded
+   unary, binary and trinary expressions between expand_expr_real_1 and
+   friends.  */
+typedef struct separate_ops
+{
+  enum tree_code code;
+  tree type;
+  tree op0, op1, op2;
+  location_t location;
+} *sepops;
+\f

 /* Functions from optabs.c, commonly used, and without need for the optabs
    tables:  */
 
 /* Functions from optabs.c, commonly used, and without need for the optabs
    tables:  */
 


@@ -263,13 +309,15 @@ 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);
 
    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);
 
 /* Create but don't emit one rtl instruction to perform certain operations.
    Modes must match; operands must meet the operation's predicates.
 /* Emit code to make a call to a constant function or a library call.  */
 extern void emit_libcall_block (rtx, rtx, rtx, rtx);
 
 /* Create but don't emit one rtl instruction to perform certain operations.
    Modes must match; operands must meet the operation's predicates.

-   Likewise for subtraction and for just copying.
-   These do not call protect_from_queue; caller must do so.  */
+   Likewise for subtraction and for just copying.  */

 extern rtx gen_add2_insn (rtx, rtx);
 extern rtx gen_add3_insn (rtx, rtx, rtx);
 extern rtx gen_sub2_insn (rtx, rtx);
 extern rtx gen_add2_insn (rtx, rtx);
 extern rtx gen_add3_insn (rtx, rtx, rtx);
 extern rtx gen_sub2_insn (rtx, rtx);


@@ -286,6 +334,11 @@ extern void emit_cmp_and_jump_insns (rtx, rtx, enum rtx_code, rtx,
 /* Generate code to indirectly jump to a location given in the rtx LOC.  */
 extern void emit_indirect_jump (rtx);
 
 /* Generate code to indirectly jump to a location given in the rtx LOC.  */
 extern void emit_indirect_jump (rtx);
 

+/* Generate a conditional trap instruction.  */
+extern rtx gen_cond_trap (enum rtx_code, rtx, rtx, rtx);
+
+#include "insn-config.h"
+

 #ifdef HAVE_conditional_move
 /* Emit a conditional move operation.  */
 rtx emit_conditional_move (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
 #ifdef HAVE_conditional_move
 /* Emit a conditional move operation.  */
 rtx emit_conditional_move (rtx, enum rtx_code, rtx, rtx, enum machine_mode,


@@ -298,6 +351,11 @@ int can_conditionally_move_p (enum machine_mode mode);
 rtx emit_conditional_add (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
                          rtx, rtx, enum machine_mode, int);
 
 rtx emit_conditional_add (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
                          rtx, rtx, enum machine_mode, int);
 

+rtx expand_val_compare_and_swap (rtx, rtx, rtx, rtx);
+rtx expand_bool_compare_and_swap (rtx, rtx, rtx, rtx);
+rtx expand_sync_operation (rtx, rtx, enum rtx_code);
+rtx expand_sync_fetch_operation (rtx, rtx, enum rtx_code, bool, rtx);
+rtx expand_sync_lock_test_and_set (rtx, rtx, rtx);

 \f
 /* Functions from expmed.c:  */
 
 \f
 /* Functions from expmed.c:  */
 


@@ -315,61 +373,30 @@ extern rtx emit_store_flag (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
 /* Like emit_store_flag, but always succeeds.  */
 extern rtx emit_store_flag_force (rtx, enum rtx_code, rtx, rtx,
                                  enum machine_mode, int, int);
 /* Like emit_store_flag, but always succeeds.  */
 extern rtx emit_store_flag_force (rtx, enum rtx_code, rtx, rtx,
                                  enum machine_mode, int, int);

-
-/* Functions from loop.c:  */
-
-/* Given an insn and condition, return a canonical description of
-   the test being made.  */
-extern rtx canonicalize_condition (rtx, rtx, int, rtx *, rtx, int);
-
-/* Given a JUMP_INSN, return a canonical description of the test
-   being made.  */
-extern rtx get_condition (rtx, rtx *, int);
-
-/* Generate a conditional trap instruction.  */
-extern rtx gen_cond_trap (enum rtx_code, rtx, rtx, rtx);

 \f
 /* Functions from builtins.c:  */
 extern rtx expand_builtin (tree, rtx, rtx, enum machine_mode, int);
 \f
 /* Functions from builtins.c:  */
 extern rtx expand_builtin (tree, rtx, rtx, enum machine_mode, int);

+extern tree std_build_builtin_va_list (void);
+extern tree std_fn_abi_va_list (tree);
+extern tree std_canonical_va_list_type (tree);
+

 extern void std_expand_builtin_va_start (tree, rtx);
 extern void std_expand_builtin_va_start (tree, rtx);

-extern rtx std_expand_builtin_va_arg (tree, tree);
-extern rtx expand_builtin_va_arg (tree, tree);
-extern void default_init_builtins (void);

 extern rtx default_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
 extern void expand_builtin_setjmp_setup (rtx, rtx);
 extern void expand_builtin_setjmp_receiver (rtx);
 extern rtx default_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
 extern void expand_builtin_setjmp_setup (rtx, rtx);
 extern void expand_builtin_setjmp_receiver (rtx);

-extern void expand_builtin_longjmp (rtx, rtx);

 extern rtx expand_builtin_saveregs (void);
 extern void expand_builtin_trap (void);
 extern rtx expand_builtin_saveregs (void);
 extern void expand_builtin_trap (void);

-extern HOST_WIDE_INT get_varargs_alias_set (void);
-extern HOST_WIDE_INT get_frame_alias_set (void);
-extern void record_base_value (unsigned int, rtx, int);
-extern void record_alias_subset (HOST_WIDE_INT, HOST_WIDE_INT);
-extern HOST_WIDE_INT new_alias_set (void);
-extern int can_address_p (tree);
+extern rtx builtin_strncpy_read_str (void *, HOST_WIDE_INT, enum machine_mode);

 \f
 /* Functions from expr.c:  */
 
 \f
 /* Functions from expr.c:  */
 

-/* This is run once per compilation to set up which modes can be used
-   directly in memory and to initialize the block move optab.  */
-extern void init_expr_once (void);
+/* This is run during target initialization to set up which modes can be
+   used directly in memory and to initialize the block move optab.  */
+extern void init_expr_target (void);

 
 /* This is run at the start of compiling a function.  */
 extern void init_expr (void);
 
 
 /* This is run at the start of compiling a function.  */
 extern void init_expr (void);
 

-/* This is run at the end of compiling a function.  */
-extern void finish_expr_for_function (void);
-
-/* Use protect_from_queue to convert a QUEUED expression
-   into something that you can put immediately into an instruction.  */
-extern rtx protect_from_queue (rtx, int);
-
-/* Perform all the pending incrementations.  */
-extern void emit_queue (void);
-
-/* Tell if something has a queued subexpression.  */
-extern int queued_subexp_p (rtx);
-

 /* Emit some rtl insns to move data between rtx's, converting machine modes.
    Both modes must be floating or both fixed.  */
 extern void convert_move (rtx, rtx, int);
 /* Emit some rtl insns to move data between rtx's, converting machine modes.
    Both modes must be floating or both fixed.  */
 extern void convert_move (rtx, rtx, int);


@@ -386,13 +413,20 @@ enum block_op_methods
 {
   BLOCK_OP_NORMAL,
   BLOCK_OP_NO_LIBCALL,
 {
   BLOCK_OP_NORMAL,
   BLOCK_OP_NO_LIBCALL,

-  BLOCK_OP_CALL_PARM
+  BLOCK_OP_CALL_PARM,
+  /* Like BLOCK_OP_NORMAL, but the libcall can be tail call optimized.  */
+  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 *);
 
 extern rtx emit_block_move (rtx, rtx, rtx, enum block_op_methods);
 extern void init_block_move_fn (const char *);
 extern void init_block_clear_fn (const char *);
 
 extern rtx emit_block_move (rtx, rtx, rtx, enum block_op_methods);

+extern rtx emit_block_move_via_libcall (rtx, rtx, rtx, bool);
+extern rtx emit_block_move_hints (rtx, rtx, rtx, enum block_op_methods,
+                                 unsigned int, HOST_WIDE_INT);
+extern bool emit_storent_insn (rtx to, rtx from);

 
 /* Copy all or part of a value X into registers starting at REGNO.
    The number of registers to be filled is NREGS.  */
 
 /* Copy all or part of a value X into registers starting at REGNO.
    The number of registers to be filled is NREGS.  */


@@ -409,10 +443,16 @@ extern rtx gen_group_rtx (rtx);
    PARALLEL.  */
 extern void emit_group_load (rtx, rtx, tree, int);
 
    PARALLEL.  */
 extern void emit_group_load (rtx, rtx, tree, int);
 

+/* Similarly, but load into new temporaries.  */
+extern rtx emit_group_load_into_temps (rtx, rtx, tree, int);
+

 /* Move a non-consecutive group of registers represented by a PARALLEL into
    a non-consecutive group of registers represented by a PARALLEL.  */
 extern void emit_group_move (rtx, rtx);
 
 /* Move a non-consecutive group of registers represented by a PARALLEL into
    a non-consecutive group of registers represented by a PARALLEL.  */
 extern void emit_group_move (rtx, rtx);
 

+/* Move a group of registers represented by a PARALLEL into pseudos.  */
+extern rtx emit_group_move_into_temps (rtx);
+

 /* Store a BLKmode value from non-consecutive registers represented by a
    PARALLEL.  */
 extern void emit_group_store (rtx, rtx, tree, int);
 /* Store a BLKmode value from non-consecutive registers represented by a
    PARALLEL.  */
 extern void emit_group_store (rtx, rtx, tree, int);


@@ -432,7 +472,15 @@ extern void use_group_regs (rtx *, rtx);
 
 /* Write zeros through the storage of OBJECT.
    If OBJECT has BLKmode, SIZE is its length in bytes.  */
 
 /* Write zeros through the storage of OBJECT.
    If OBJECT has BLKmode, SIZE is its length in bytes.  */

-extern rtx clear_storage (rtx, rtx);
+extern rtx clear_storage (rtx, rtx, enum block_op_methods);
+extern rtx clear_storage_hints (rtx, rtx, enum block_op_methods,
+                               unsigned int, HOST_WIDE_INT);
+/* The same, but always output an library call.  */
+rtx set_storage_via_libcall (rtx, rtx, rtx, bool);
+
+/* Expand a setmem pattern; return true if successful.  */
+extern bool set_storage_via_setmem (rtx, rtx, rtx, unsigned int,
+                                   unsigned int, HOST_WIDE_INT);

 
 /* Determine whether the LEN bytes can be moved by using several move
    instructions.  Return nonzero if a call to move_by_pieces should
 
 /* Determine whether the LEN bytes can be moved by using several move
    instructions.  Return nonzero if a call to move_by_pieces should


@@ -443,20 +491,23 @@ extern int can_move_by_pieces (unsigned HOST_WIDE_INT, unsigned int);
    CONSTFUN with several move instructions by store_by_pieces
    function.  CONSTFUNDATA is a pointer which will be passed as argument
    in every CONSTFUN call.
    CONSTFUN with several move instructions by store_by_pieces
    function.  CONSTFUNDATA is a pointer which will be passed as argument
    in every CONSTFUN call.

-   ALIGN is maximum alignment we can assume.  */
+   ALIGN is maximum alignment we can assume.
+   MEMSETP is true if this is a real memset/bzero, not a copy
+   of a const string.  */

 extern int can_store_by_pieces (unsigned HOST_WIDE_INT,
                                rtx (*) (void *, HOST_WIDE_INT,
                                         enum machine_mode),
 extern int can_store_by_pieces (unsigned HOST_WIDE_INT,
                                rtx (*) (void *, HOST_WIDE_INT,
                                         enum machine_mode),

-                               void *, unsigned int);
+                               void *, unsigned int, bool);

 
 /* 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.
 
 /* 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.

+   MEMSETP is true if this is a real memset/bzero, not a copy.

    Returns TO + LEN.  */
 extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT,
                            rtx (*) (void *, HOST_WIDE_INT, enum machine_mode),
    Returns TO + LEN.  */
 extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT,
                            rtx (*) (void *, HOST_WIDE_INT, enum machine_mode),

-                           void *, unsigned int, int);
+                           void *, unsigned int, bool, int);

 
 /* Emit insns to set X from Y.  */
 extern rtx emit_move_insn (rtx, rtx);
 
 /* Emit insns to set X from Y.  */
 extern rtx emit_move_insn (rtx, rtx);


@@ -464,6 +515,9 @@ extern rtx emit_move_insn (rtx, rtx);
 /* Emit insns to set X from Y, with no frills.  */
 extern rtx emit_move_insn_1 (rtx, rtx);
 
 /* Emit insns to set X from Y, with no frills.  */
 extern rtx emit_move_insn_1 (rtx, rtx);
 

+extern rtx emit_move_complex_push (enum machine_mode, rtx, rtx);
+extern rtx emit_move_complex_parts (rtx, rtx);
+

 /* Push a block of length SIZE (perhaps variable)
    and return an rtx to address the beginning of the block.  */
 extern rtx push_block (rtx, int, int);
 /* Push a block of length SIZE (perhaps variable)
    and return an rtx to address the beginning of the block.  */
 extern rtx push_block (rtx, int, int);


@@ -473,37 +527,50 @@ extern void emit_push_insn (rtx, enum machine_mode, tree, rtx, unsigned int,
                            int, rtx, int, rtx, rtx, int, rtx);
 
 /* Expand an assignment that stores the value of FROM into TO.  */
                            int, rtx, int, rtx, rtx, int, rtx);
 
 /* Expand an assignment that stores the value of FROM into TO.  */

-extern rtx expand_assignment (tree, tree, int);
+extern void expand_assignment (tree, tree, bool);

 
 /* Generate code for computing expression EXP,
    and storing the value into TARGET.
    If SUGGEST_REG is nonzero, copy the value through a register
    and return that register, if that is possible.  */
 
 /* Generate code for computing expression EXP,
    and storing the value into TARGET.
    If SUGGEST_REG is nonzero, copy the value through a register
    and return that register, if that is possible.  */

-extern rtx store_expr (tree, rtx, int);
+extern rtx store_expr (tree, rtx, int, bool);

 
 /* Given an rtx that may include add and multiply operations,
    generate them as insns and return a pseudo-reg containing the value.
    Useful after calling expand_expr with 1 as sum_ok.  */
 extern rtx force_operand (rtx, rtx);
 
 
 /* Given an rtx that may include add and multiply operations,
    generate them as insns and return a pseudo-reg containing the value.
    Useful after calling expand_expr with 1 as sum_ok.  */
 extern rtx force_operand (rtx, rtx);
 

-/* Return an object on the placeholder list that matches EXP, a
-   PLACEHOLDER_EXPR.  An object "matches" if it is of the type of the
-   PLACEHOLDER_EXPR or a pointer type to it.  For further information, see
-   tree.def.  If no such object is found, abort.  If PLIST is nonzero, it is
-   a location which initially points to a starting location in the
-   placeholder list (zero means start of the list) and where a pointer into
-   the placeholder list at which the object is found is placed.  */
-extern tree find_placeholder (tree, tree *);
+/* Work horses for expand_expr.  */
+extern rtx expand_expr_real (tree, rtx, enum machine_mode,
+                            enum expand_modifier, rtx *);
+extern rtx expand_expr_real_1 (tree, rtx, enum machine_mode,
+                              enum expand_modifier, rtx *);
+extern rtx expand_expr_real_2 (sepops, rtx, enum machine_mode,
+                              enum expand_modifier);

 
 /* Generate code for computing expression EXP.
    An rtx for the computed value is returned.  The value is never null.
    In the case of a void EXP, const0_rtx is returned.  */
 
 /* Generate code for computing expression EXP.
    An rtx for the computed value is returned.  The value is never null.
    In the case of a void EXP, const0_rtx is returned.  */

-extern rtx expand_expr (tree, rtx, enum machine_mode, enum expand_modifier);
+static inline rtx
+expand_expr (tree exp, rtx target, enum machine_mode mode,
+            enum expand_modifier modifier)
+{
+  return expand_expr_real (exp, target, mode, modifier, NULL);
+}
+
+static inline rtx
+expand_normal (tree exp)
+{
+  return expand_expr_real (exp, NULL_RTX, VOIDmode, EXPAND_NORMAL, NULL);
+}

 
 /* At the start of a function, record that we have no previously-pushed
    arguments waiting to be popped.  */
 extern void init_pending_stack_adjust (void);
 
 
 /* At the start of a function, record that we have no previously-pushed
    arguments waiting to be popped.  */
 extern void init_pending_stack_adjust (void);
 

+/* Discard any pending stack adjustment.  */
+extern void discard_pending_stack_adjust (void);
+

 /* When exiting from function, if safe, clear out any pending stack adjust
    so the adjustment won't get done.  */
 extern void clear_pending_stack_adjust (void);
 /* When exiting from function, if safe, clear out any pending stack adjust
    so the adjustment won't get done.  */
 extern void clear_pending_stack_adjust (void);


@@ -516,28 +583,27 @@ extern void do_pending_stack_adjust (void);
 extern tree string_constant (tree, tree *);
 
 /* Generate code to evaluate EXP and jump to LABEL if the value is zero.  */
 extern tree string_constant (tree, tree *);
 
 /* Generate code to evaluate EXP and jump to LABEL if the value is zero.  */

-extern void jumpifnot (tree, rtx);
+extern void jumpifnot (tree, rtx, int);
+extern void jumpifnot_1 (enum tree_code, tree, tree, rtx, int);

 
 /* Generate code to evaluate EXP and jump to LABEL if the value is nonzero.  */
 
 /* Generate code to evaluate EXP and jump to LABEL if the value is nonzero.  */

-extern void jumpif (tree, rtx);
+extern void jumpif (tree, rtx, int);
+extern void jumpif_1 (enum tree_code, tree, tree, rtx, int);

 
 /* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
    the result is zero, or IF_TRUE_LABEL if the result is one.  */
 
 /* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
    the result is zero, or IF_TRUE_LABEL if the result is one.  */

-extern void do_jump (tree, rtx, rtx);
+extern void do_jump (tree, rtx, rtx, int);
+extern void do_jump_1 (enum tree_code, tree, tree, rtx, rtx, int);

 
 

-/* 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,
 extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,

-                                    enum machine_mode, rtx, rtx, rtx);
+                                    enum machine_mode, rtx, rtx, rtx, int);

 
 /* Two different ways of generating switch statements.  */
 
 /* Two different ways of generating switch statements.  */

-extern int try_casesi (tree, tree, tree, tree, rtx, rtx);
+extern int try_casesi (tree, tree, tree, tree, rtx, rtx, rtx);

 extern int try_tablejump (tree, tree, tree, tree, 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"

 
 \f
 /* rtl.h and tree.h were included.  */
 
 \f
 /* rtl.h and tree.h were included.  */


@@ -548,23 +614,18 @@ extern rtx expr_size (tree);
    if the size can vary or is larger than an integer.  */
 extern HOST_WIDE_INT int_expr_size (tree);
 
    if the size can vary or is larger than an integer.  */
 extern HOST_WIDE_INT int_expr_size (tree);
 

-extern rtx lookup_static_chain (tree);
-
-/* Convert a stack slot address ADDR valid in function FNDECL
-   into an address valid in this function (using a static chain).  */
-extern rtx fix_lexical_addr (rtx, tree);
-
-/* Return the address of the trampoline for entering nested fn FUNCTION.  */
-extern rtx trampoline_address (tree);
-

 /* Return an rtx that refers to the value returned by a function
    in its original home.  This becomes invalid if any more code is emitted.  */
 /* Return an rtx that refers to the value returned by a function
    in its original home.  This becomes invalid if any more code is emitted.  */

-extern rtx hard_function_value (tree, tree, int);
+extern rtx hard_function_value (const_tree, const_tree, const_tree, int);

 
 

-extern rtx prepare_call_address (rtx, tree, rtx *, int, int);
+extern rtx prepare_call_address (tree, rtx, rtx, rtx *, int, int);
+
+extern bool shift_return_value (enum machine_mode, bool, rtx);

 
 extern rtx expand_call (tree, rtx, int);
 
 
 extern rtx expand_call (tree, rtx, int);
 

+extern void fixup_tail_calls (void);
+

 #ifdef TREE_CODE
 extern rtx expand_shift (enum tree_code, enum machine_mode, rtx, tree, rtx,
                         int);
 #ifdef TREE_CODE
 extern rtx expand_shift (enum tree_code, enum machine_mode, rtx, tree, rtx,
                         int);


@@ -575,7 +636,6 @@ extern rtx expand_divmod (int, enum tree_code, enum machine_mode, rtx, rtx,
 extern void locate_and_pad_parm (enum machine_mode, tree, int, int, tree,
                                 struct args_size *,
                                 struct locate_and_pad_arg_data *);
 extern void locate_and_pad_parm (enum machine_mode, tree, int, int, tree,
                                 struct args_size *,
                                 struct locate_and_pad_arg_data *);

-extern rtx expand_inline_function (tree, tree, rtx, int, tree, rtx);

 
 /* Return the CODE_LABEL rtx for a LABEL_DECL, creating it if necessary.  */
 extern rtx label_rtx (tree);
 
 /* Return the CODE_LABEL rtx for a LABEL_DECL, creating it if necessary.  */
 extern rtx label_rtx (tree);


@@ -585,35 +645,20 @@ extern rtx label_rtx (tree);
    if how is not obvious).  */
 extern rtx force_label_rtx (tree);
 
    if how is not obvious).  */
 extern rtx force_label_rtx (tree);
 

-/* Indicate how an input argument register was promoted.  */
-extern rtx promoted_input_arg (unsigned int, enum machine_mode *, int *);
-

 /* Return an rtx like arg but sans any constant terms.
    Returns the original rtx if it has no constant terms.
    The constant terms are added and stored via a second arg.  */
 extern rtx eliminate_constant_term (rtx, rtx *);
 
 /* Return an rtx like arg but sans any constant terms.
    Returns the original rtx if it has no constant terms.
    The constant terms are added and stored via a second arg.  */
 extern rtx eliminate_constant_term (rtx, rtx *);
 

-/* Convert arg to a valid memory address for specified machine mode,
-   by emitting insns to perform arithmetic if nec.  */
-extern rtx memory_address (enum machine_mode, rtx);
-
-/* Like `memory_address' but pretent `flag_force_addr' is 0.  */
-extern rtx memory_address_noforce (enum machine_mode, rtx);
-
-/* Set the alias set of MEM to SET.  */
-extern void set_mem_alias_set (rtx, HOST_WIDE_INT);
-
-/* Set the alignment of MEM to ALIGN bits.  */
-extern void set_mem_align (rtx, unsigned int);
+/* Convert arg to a valid memory address for specified machine mode that points
+   to a specific named address space, by emitting insns to perform arithmetic
+   if necessary.  */
+extern rtx memory_address_addr_space (enum machine_mode, rtx, addr_space_t);

 
 

-/* Set the expr for MEM to EXPR.  */
-extern void set_mem_expr (rtx, tree);
-
-/* Set the offset for MEM to OFFSET.  */
-extern void set_mem_offset (rtx, rtx);
-
-/* Set the size for MEM to SIZE.  */
-extern void set_mem_size (rtx, rtx);
+/* Like memory_address_addr_space, except assume the memory address points to
+   the generic named address space.  */
+#define memory_address(MODE,RTX) \
+       memory_address_addr_space ((MODE), (RTX), ADDR_SPACE_GENERIC)

 
 /* Return a memory reference like MEMREF, but with its mode changed
    to MODE and its address changed to ADDR.
 
 /* Return a memory reference like MEMREF, but with its mode changed
    to MODE and its address changed to ADDR.


@@ -649,14 +694,8 @@ extern rtx adjust_automodify_address_1 (rtx, enum machine_mode, rtx,
    known to be in OFFSET (possibly 1).  */
 extern rtx offset_address (rtx, rtx, unsigned HOST_WIDE_INT);
 
    known to be in OFFSET (possibly 1).  */
 extern rtx offset_address (rtx, rtx, unsigned HOST_WIDE_INT);
 

-/* Return a memory reference like MEMREF, but with its address changed to
-   ADDR.  The caller is asserting that the actual piece of memory pointed
-   to is the same, just the form of the address is being changed, such as
-   by putting something into a register.  */
-extern rtx replace_equiv_address (rtx, rtx);
-
-/* Likewise, but the reference is not required to be valid.  */
-extern rtx replace_equiv_address_nv (rtx, rtx);
+/* Definitions from emit-rtl.c */
+#include "emit-rtl.h"

 
 /* Return a memory reference like MEMREF, but with its mode widened to
    MODE and adjusted by OFFSET.  */
 
 /* Return a memory reference like MEMREF, but with its mode widened to
    MODE and adjusted by OFFSET.  */


@@ -666,10 +705,7 @@ extern rtx widen_memory_access (rtx, enum machine_mode, HOST_WIDE_INT);
    valid address.  */
 extern rtx validize_mem (rtx);
 
    valid address.  */
 extern rtx validize_mem (rtx);
 

-/* Given REF, either a MEM or a REG, and T, either the type of X or
-   the expression corresponding to REF, set RTX_UNCHANGING_P if
-   appropriate.  */
-extern void maybe_set_unchanging (rtx, tree);
+extern rtx use_anchored_address (rtx);

 
 /* Given REF, a MEM, and T, either the type of X or the expression
    corresponding to REF, set the memory attributes.  OBJECTP is nonzero
 
 /* Given REF, a MEM, and T, either the type of X or the expression
    corresponding to REF, set the memory attributes.  OBJECTP is nonzero


@@ -681,17 +717,14 @@ 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);
 
    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);
 
 /* Assemble the static constant template for function entry trampolines.  */
 extern rtx assemble_trampoline_template (void);
 

-/* Given rtx, return new rtx whose address won't be affected by
-   any side effects.  It has been copied to a new temporary reg.  */
-extern rtx stabilize (rtx);
-
-/* Given an rtx, copy all regs it refers to into new temps
-   and return a modified copy that refers to the new temps.  */
-extern rtx copy_all_regs (rtx);
-

 /* Copy given rtx to a new temp reg and return that.  */
 extern rtx copy_to_reg (rtx);
 
 /* Copy given rtx to a new temp reg and return that.  */
 extern rtx copy_to_reg (rtx);
 


@@ -711,8 +744,17 @@ 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 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.  */
 /* Return mode and signedness to use when object is promoted.  */

-extern enum machine_mode promote_mode (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);
 
 /* Remove some bytes from the stack.  An rtx says how many.  */
 extern void adjust_stack (rtx);


@@ -720,6 +762,9 @@ extern void adjust_stack (rtx);
 /* Add some bytes to the stack.  An rtx says how many.  */
 extern void anti_adjust_stack (rtx);
 
 /* Add some bytes to the stack.  An rtx says how many.  */
 extern void anti_adjust_stack (rtx);
 

+/* Add some bytes to the stack while probing it.  An rtx says how many. */
+extern void anti_adjust_stack_and_probe (rtx, bool);
+

 /* This enum is used for the following two functions.  */
 enum save_level {SAVE_BLOCK, SAVE_FUNCTION, SAVE_NONLOCAL};
 
 /* This enum is used for the following two functions.  */
 enum save_level {SAVE_BLOCK, SAVE_FUNCTION, SAVE_NONLOCAL};
 


@@ -729,24 +774,22 @@ extern void emit_stack_save (enum save_level, rtx *, rtx);
 /* Restore the stack pointer from a save area of the specified level.  */
 extern void emit_stack_restore (enum save_level, rtx, rtx);
 
 /* Restore the stack pointer from a save area of the specified level.  */
 extern void emit_stack_restore (enum save_level, rtx, rtx);
 

+/* Invoke emit_stack_save for the nonlocal_goto_save_area.  */
+extern void update_nonlocal_goto_save_area (void);
+

 /* Allocate some space on the stack dynamically and return its address.  An rtx
    says how many bytes.  */
 extern rtx allocate_dynamic_stack_space (rtx, rtx, int);
 
 /* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive.
 /* Allocate some space on the stack dynamically and return its address.  An rtx
    says how many bytes.  */
 extern rtx allocate_dynamic_stack_space (rtx, rtx, int);
 
 /* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive.

-   FIRST is a constant and size is a Pmode RTX.  These are offsets from the
-   current stack pointer.  STACK_GROWS_DOWNWARD says whether to add or
-   subtract from the stack.  If SIZE is constant, this is done
-   with a fixed number of probes.  Otherwise, we must make a loop.  */
+   FIRST is a constant and size is a Pmode RTX.  These are offsets from
+   the current stack pointer.  STACK_GROWS_DOWNWARD says whether to add
+   or subtract them from the stack pointer.  */

 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 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);
-
-/* Given an rtx, return an rtx for a value rounded up to a multiple
-   of STACK_BOUNDARY / BITS_PER_UNIT.  */
-extern rtx round_push (rtx);
+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
 
 /* Return the mode desired by operand N of a particular bitfield
    insert/extract insn, or MAX_MACHINE_MODE if no such insn is


@@ -756,20 +799,19 @@ enum extraction_pattern { EP_insv, EP_extv, EP_extzv };
 extern enum machine_mode
 mode_for_extraction (enum extraction_pattern, int);
 
 extern enum machine_mode
 mode_for_extraction (enum extraction_pattern, int);
 

-extern rtx store_bit_field (rtx, unsigned HOST_WIDE_INT,
-                           unsigned HOST_WIDE_INT, enum machine_mode, rtx,
-                           HOST_WIDE_INT);
+extern void store_bit_field (rtx, unsigned HOST_WIDE_INT,
+                            unsigned HOST_WIDE_INT, enum machine_mode, rtx);

 extern rtx extract_bit_field (rtx, unsigned HOST_WIDE_INT,
                              unsigned HOST_WIDE_INT, int, rtx,
 extern rtx extract_bit_field (rtx, unsigned HOST_WIDE_INT,
                              unsigned HOST_WIDE_INT, int, rtx,

-                             enum machine_mode, enum machine_mode,
-                             HOST_WIDE_INT);
+                             enum machine_mode, enum machine_mode);
+extern rtx extract_low_bits (enum machine_mode, enum machine_mode, rtx);

 extern rtx expand_mult (enum machine_mode, rtx, rtx, rtx, int);
 extern rtx expand_mult (enum machine_mode, rtx, rtx, rtx, int);

-extern bool const_mult_add_overflow_p (rtx, rtx, rtx, enum machine_mode, int);
-extern rtx expand_mult_add (rtx, rtx, rtx, rtx,enum machine_mode, int);

 extern rtx expand_mult_highpart_adjust (enum machine_mode, rtx, rtx, rtx, rtx, int);
 
 extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
 extern rtx expand_mult_highpart_adjust (enum machine_mode, rtx, rtx, rtx, rtx, int);
 
 extern rtx assemble_static_space (unsigned HOST_WIDE_INT);

-extern int safe_from_p (rtx, tree, 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.  */
 
 /* Call this once to initialize the contents of the optabs
    appropriately for the current target machine.  */


@@ -778,13 +820,14 @@ extern void init_all_optabs (void);
 
 /* Call this to initialize an optab function entry.  */
 extern rtx init_one_libfunc (const char *);
 
 /* 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 void do_jump_by_parts_equality_rtx (rtx, rtx, rtx);
-extern void do_jump_by_parts_greater_rtx (enum machine_mode, int, rtx, rtx,
-                                         rtx, rtx);
+/* Build a decl for a libfunc named NAME. */
+extern tree build_libfunc_function (const char *);

 
 

-extern void mark_seen_cases (tree, unsigned char *, HOST_WIDE_INT, int);
+/* Get the personality libfunc for a function decl.  */
+rtx get_personality_function (tree);

 
 extern int vector_mode_valid_p (enum machine_mode);
 
 
 extern int vector_mode_valid_p (enum machine_mode);
 

-extern tree placeholder_list;
+#endif /* GCC_EXPR_H */