* defaults.h (CONSTANT_ADDRESS_P): Provide a default definition.

[pf3gnuchains/gcc-fork.git] / gcc / langhooks.c

diff --git a/gcc/langhooks.c b/gcc/langhooks.c
index cf343eb..633caf5 100644 (file)
--- a/gcc/langhooks.c
+++ b/gcc/langhooks.c
@@ -1,12 +1,13 @@
 /* Default language-specific hooks.
 /* Default language-specific hooks.

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

    Contributed by Alexandre Oliva  <aoliva@redhat.com>
 
 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
    Contributed by Alexandre Oliva  <aoliva@redhat.com>
 
 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)
+the Free Software Foundation; either version 3, or (at your option)

 any later version.
 
 GCC is distributed in the hope that it will be useful,
 any later version.
 
 GCC is distributed in the hope that it will be useful,


@@ -15,141 +16,128 @@ MERCHANTABILITY or 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
 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/>.  */

 
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
 
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"

+#include "intl.h"

 #include "tm.h"
 #include "toplev.h"
 #include "tree.h"
 #include "tm.h"
 #include "toplev.h"
 #include "tree.h"

-#include "c-tree.h"

 #include "tree-inline.h"
 #include "tree-inline.h"

+#include "gimple.h"

 #include "rtl.h"
 #include "insn-config.h"
 #include "integrate.h"
 #include "flags.h"
 #include "langhooks.h"
 #include "rtl.h"
 #include "insn-config.h"
 #include "integrate.h"
 #include "flags.h"
 #include "langhooks.h"

+#include "target.h"

 #include "langhooks-def.h"
 #include "langhooks-def.h"

+#include "ggc.h"
+#include "diagnostic.h"
+#include "cgraph.h"
+#include "output.h"

 
 /* Do nothing; in many cases the default hook.  */
 
 void
 
 /* Do nothing; in many cases the default hook.  */
 
 void

-lhd_do_nothing ()
+lhd_do_nothing (void)

 {
 }
 
 /* Do nothing (tree).  */
 
 void
 {
 }
 
 /* Do nothing (tree).  */
 
 void

-lhd_do_nothing_t (t)
-     tree t ATTRIBUTE_UNUSED;
+lhd_do_nothing_t (tree ARG_UNUSED (t))

 {
 }
 
 {
 }
 

+/* Pass through (tree).  */
+tree
+lhd_pass_through_t (tree t)
+{
+  return t;
+}
+

 /* Do nothing (int).  */
 
 void
 /* Do nothing (int).  */
 
 void

-lhd_do_nothing_i (i)
-     int i ATTRIBUTE_UNUSED;
+lhd_do_nothing_i (int ARG_UNUSED (i))

 {
 }
 
 {
 }
 

+/* Do nothing (int, int, int).  Return NULL_TREE.  */
+
+tree
+lhd_do_nothing_iii_return_null_tree (int ARG_UNUSED (i),
+                                    int ARG_UNUSED (j),
+                                    int ARG_UNUSED (k))
+{
+  return NULL_TREE;
+}
+

 /* Do nothing (function).  */
 
 void
 /* Do nothing (function).  */
 
 void

-lhd_do_nothing_f (f)
-     struct function *f ATTRIBUTE_UNUSED;
+lhd_do_nothing_f (struct function * ARG_UNUSED (f))

 {
 }
 
 {
 }
 

-/* Do nothing (return the tree node passed).  */
+/* Do nothing (return NULL_TREE).  */

 
 tree
 
 tree

-lhd_return_tree (t)
-     tree t;
+lhd_return_null_tree_v (void)

 {
 {

-  return t;
+  return NULL_TREE;

 }
 
 /* Do nothing (return NULL_TREE).  */
 
 tree
 }
 
 /* Do nothing (return NULL_TREE).  */
 
 tree

-lhd_return_null_tree (t)
-     tree t ATTRIBUTE_UNUSED;
+lhd_return_null_tree (tree ARG_UNUSED (t))

 {
   return NULL_TREE;
 }
 
 {
   return NULL_TREE;
 }
 

-/* Do nothing; the default hook to decode an option.  */
+/* Do nothing (return NULL_TREE).  */

 
 

-int
-lhd_decode_option (argc, argv)
-     int argc ATTRIBUTE_UNUSED;
-     char **argv ATTRIBUTE_UNUSED;
+tree
+lhd_return_null_const_tree (const_tree ARG_UNUSED (t))

 {
 {

-  return 0;
+  return NULL_TREE;

 }
 
 /* The default post options hook.  */
 
 bool
 }
 
 /* The default post options hook.  */
 
 bool

-lhd_post_options (pfilename)
-     const char **pfilename ATTRIBUTE_UNUSED;
+lhd_post_options (const char ** ARG_UNUSED (pfilename))

 {
 {

+  /* Excess precision other than "fast" requires front-end
+     support.  */
+  flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;

   return false;
 }
 
 /* Called from by print-tree.c.  */
 
 void
   return false;
 }
 
 /* Called from by print-tree.c.  */
 
 void

-lhd_print_tree_nothing (file, node, indent)
-     FILE *file ATTRIBUTE_UNUSED;
-     tree node ATTRIBUTE_UNUSED;
-     int indent ATTRIBUTE_UNUSED;
+lhd_print_tree_nothing (FILE * ARG_UNUSED (file),
+                       tree ARG_UNUSED (node),
+                       int ARG_UNUSED (indent))

 {
 }
 
 {
 }
 

-/* Called from safe_from_p.  */
-
-int
-lhd_safe_from_p (x, exp)
-     rtx x ATTRIBUTE_UNUSED;
-     tree exp ATTRIBUTE_UNUSED;
-{
-  return 1;
-}
-
-/* Called from unsafe_for_reeval.  */
-
-int
-lhd_unsafe_for_reeval (t)
-     tree t ATTRIBUTE_UNUSED;
-{
-  return -1;
-}
-
-/* Called from staticp.  */
-
-int
-lhd_staticp (exp)
-     tree exp ATTRIBUTE_UNUSED;
-{
-  return 0;
-}
-

 /* Called from check_global_declarations.  */
 
 bool
 /* Called from check_global_declarations.  */
 
 bool

-lhd_warn_unused_global_decl (decl)
-     tree decl;
+lhd_warn_unused_global_decl (const_tree decl)

 {
   /* This is what used to exist in check_global_declarations.  Probably
      not many of these actually apply to non-C languages.  */
 
 {
   /* This is what used to exist in check_global_declarations.  Probably
      not many of these actually apply to non-C languages.  */
 

-  if (TREE_CODE (decl) == FUNCTION_DECL && DECL_INLINE (decl))
+  if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))

     return false;
   if (TREE_CODE (decl) == VAR_DECL && TREE_READONLY (decl))
     return false;
     return false;
   if (TREE_CODE (decl) == VAR_DECL && TREE_READONLY (decl))
     return false;


@@ -161,328 +149,490 @@ lhd_warn_unused_global_decl (decl)
 
 /* Set the DECL_ASSEMBLER_NAME for DECL.  */
 void
 
 /* Set the DECL_ASSEMBLER_NAME for DECL.  */
 void

-lhd_set_decl_assembler_name (decl)
-     tree decl;
+lhd_set_decl_assembler_name (tree decl)

 {
 {

+  tree id;
+

   /* The language-independent code should never use the
      DECL_ASSEMBLER_NAME for lots of DECLs.  Only FUNCTION_DECLs and
      VAR_DECLs for variables with static storage duration need a real
      DECL_ASSEMBLER_NAME.  */
   /* The language-independent code should never use the
      DECL_ASSEMBLER_NAME for lots of DECLs.  Only FUNCTION_DECLs and
      VAR_DECLs for variables with static storage duration need a real
      DECL_ASSEMBLER_NAME.  */

-  if (TREE_CODE (decl) == FUNCTION_DECL
-      || (TREE_CODE (decl) == VAR_DECL
-         && (TREE_STATIC (decl)
-             || DECL_EXTERNAL (decl)
-             || TREE_PUBLIC (decl))))
-    /* By default, assume the name to use in assembly code is the
-       same as that used in the source language.  (That's correct
-       for C, and GCC used to set DECL_ASSEMBLER_NAME to the same
-       value as DECL_NAME in build_decl, so this choice provides
-       backwards compatibility with existing front-ends.  */
-    SET_DECL_ASSEMBLER_NAME (decl, DECL_NAME (decl));
+  gcc_assert (TREE_CODE (decl) == FUNCTION_DECL
+             || (TREE_CODE (decl) == VAR_DECL
+                 && (TREE_STATIC (decl)
+                     || DECL_EXTERNAL (decl)
+                     || TREE_PUBLIC (decl))));
+  
+  /* By default, assume the name to use in assembly code is the same
+     as that used in the source language.  (That's correct for C, and
+     GCC used to set DECL_ASSEMBLER_NAME to the same value as
+     DECL_NAME in build_decl, so this choice provides backwards
+     compatibility with existing front-ends.  This assumption is wrapped
+     in a target hook, to allow for target-specific modification of the
+     identifier.
+ 
+     Can't use just the variable's own name for a variable whose scope
+     is less than the whole compilation.  Concatenate a distinguishing
+     number - we use the DECL_UID.  */
+
+  if (TREE_PUBLIC (decl) || DECL_CONTEXT (decl) == NULL_TREE)
+    id = targetm.mangle_decl_assembler_name (decl, DECL_NAME (decl));

   else
   else

-    /* Nobody should ever be asking for the DECL_ASSEMBLER_NAME of
-       these DECLs -- unless they're in language-dependent code, in
-       which case set_decl_assembler_name hook should handle things.  */
-    abort ();
-}
+    {
+      const char *name = IDENTIFIER_POINTER (DECL_NAME (decl));
+      char *label;
+      
+      ASM_FORMAT_PRIVATE_NAME (label, name, DECL_UID (decl));
+      id = get_identifier (label);
+    }
+  SET_DECL_ASSEMBLER_NAME (decl, id);

 
 

-/* By default we always allow bit-field based optimizations.  */
-bool
-lhd_can_use_bit_fields_p ()
-{
-  return true;

 }
 
 }
 

-/* Provide a default routine to clear the binding stack.  This is used
-   by languages that don't need to do anything special.  */
-void
-lhd_clear_binding_stack ()
+/* Type promotion for variable arguments.  */
+tree
+lhd_type_promotes_to (tree ARG_UNUSED (type))

 {
 {

-  while (! (*lang_hooks.decls.global_bindings_p) ())
-    poplevel (0, 0, 0);
+  gcc_unreachable ();

 }
 
 }
 

-/* Type promotion for variable arguments.  */
-tree
-lhd_type_promotes_to (type)
-     tree type ATTRIBUTE_UNUSED;
+/* Registration of machine- or os-specific builtin types.  */
+void
+lhd_register_builtin_type (tree ARG_UNUSED (type),
+                          const char * ARG_UNUSED (name))

 {
 {

-  abort ();

 }
 
 /* Invalid use of an incomplete type.  */
 void
 }
 
 /* Invalid use of an incomplete type.  */
 void

-lhd_incomplete_type_error (value, type)
-     tree value ATTRIBUTE_UNUSED, type;
+lhd_incomplete_type_error (const_tree ARG_UNUSED (value), const_tree type)

 {
 {

-  if (TREE_CODE (type) == ERROR_MARK)
-    return;
-
-  abort ();
+  gcc_assert (TREE_CODE (type) == ERROR_MARK);
+  return;

 }
 
 /* Provide a default routine for alias sets that always returns -1.  This
    is used by languages that don't need to do anything special.  */
 
 }
 
 /* Provide a default routine for alias sets that always returns -1.  This
    is used by languages that don't need to do anything special.  */
 

-HOST_WIDE_INT
-lhd_get_alias_set (t)
-     tree t ATTRIBUTE_UNUSED;
+alias_set_type
+lhd_get_alias_set (tree ARG_UNUSED (t))

 {
   return -1;
 }
 
 {
   return -1;
 }
 

-/* Provide a hook routine for alias sets that always returns 0.  This is
-   used by languages that haven't deal with alias sets yet.  */
+/* This is the default decl_printable_name function.  */

 
 

-HOST_WIDE_INT
-hook_get_alias_set_0 (t)
-     tree t ATTRIBUTE_UNUSED;
+const char *
+lhd_decl_printable_name (tree decl, int ARG_UNUSED (verbosity))

 {
 {

-  return 0;
+  gcc_assert (decl && DECL_NAME (decl));
+  return IDENTIFIER_POINTER (DECL_NAME (decl));

 }
 
 }
 

-/* This is the default expand_expr function.  */
+/* This is the default dwarf_name function.  */

 
 

-rtx
-lhd_expand_expr (t, r, mm, em)
-     tree t ATTRIBUTE_UNUSED;
-     rtx r ATTRIBUTE_UNUSED;
-     enum machine_mode mm ATTRIBUTE_UNUSED;
-     int em ATTRIBUTE_UNUSED;
+const char *
+lhd_dwarf_name (tree t, int verbosity)

 {
 {

-  abort ();
+  gcc_assert (DECL_P (t));
+
+  return lang_hooks.decl_printable_name (t, verbosity);

 }
 
 }
 

-/* This is the default decl_printable_name function.  */
+/* This compares two types for equivalence ("compatible" in C-based languages).
+   This routine should only return 1 if it is sure.  It should not be used
+   in contexts where erroneously returning 0 causes problems.  */

 
 

-const char *
-lhd_decl_printable_name (decl, verbosity)
-     tree decl;
-     int verbosity ATTRIBUTE_UNUSED;
+int
+lhd_types_compatible_p (tree x, tree y)

 {
 {

-  return IDENTIFIER_POINTER (DECL_NAME (decl));
+  return TYPE_MAIN_VARIANT (x) == TYPE_MAIN_VARIANT (y);

 }
 
 }
 

-/* lang_hooks.tree_inlining.walk_subtrees is called by walk_tree()
-   after handling common cases, but before walking code-specific
-   sub-trees.  If this hook is overridden for a language, it should
-   handle language-specific tree codes, as well as language-specific
-   information associated to common tree codes.  If a tree node is
-   completely handled within this function, it should set *SUBTREES to
-   0, so that generic handling isn't attempted.  For language-specific
-   tree codes, generic handling would abort(), so make sure it is set
-   properly.  Both SUBTREES and *SUBTREES is guaranteed to be nonzero
-   when the function is called.  */
+/* lang_hooks.tree_dump.dump_tree:  Dump language-specific parts of tree
+   nodes.  Returns nonzero if it does not want the usual dumping of the
+   second argument.  */

 
 

-tree
-lhd_tree_inlining_walk_subtrees (tp,subtrees,func,data,htab)
-     tree *tp ATTRIBUTE_UNUSED;
-     int *subtrees ATTRIBUTE_UNUSED;
-     walk_tree_fn func ATTRIBUTE_UNUSED;
-     void *data ATTRIBUTE_UNUSED;
-     void *htab ATTRIBUTE_UNUSED;
+bool
+lhd_tree_dump_dump_tree (void *di ATTRIBUTE_UNUSED, tree t ATTRIBUTE_UNUSED)

 {
 {

-  return NULL_TREE;
+  return false;

 }
 
 }
 

-/* lang_hooks.tree_inlining.cannot_inline_tree_fn is called to
-   determine whether there are language-specific reasons for not
-   inlining a given function.  */
+/* lang_hooks.tree_dump.type_qual:  Determine type qualifiers in a
+   language-specific way.  */

 
 int
 
 int

-lhd_tree_inlining_cannot_inline_tree_fn (fnp)
-     tree *fnp;
+lhd_tree_dump_type_quals (const_tree t)

 {
 {

-  if (flag_really_no_inline
-      && lookup_attribute ("always_inline", DECL_ATTRIBUTES (*fnp)) == NULL)
-    return 1;
-
-  return 0;
+  return TYPE_QUALS (t);

 }
 
 }
 

-/* lang_hooks.tree_inlining.disregard_inline_limits is called to
-   determine whether a function should be considered for inlining even
-   if it would exceed inlining limits.  */
+/* lang_hooks.gimplify_expr re-writes *EXPR_P into GIMPLE form.  */

 
 int
 
 int

-lhd_tree_inlining_disregard_inline_limits (fn)
-     tree fn;
+lhd_gimplify_expr (tree *expr_p ATTRIBUTE_UNUSED,
+                  gimple_seq *pre_p ATTRIBUTE_UNUSED,
+                  gimple_seq *post_p ATTRIBUTE_UNUSED)

 {
 {

-  if (lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) != NULL)
-    return 1;
+  return GS_UNHANDLED;
+}

 
 

-  return 0;
+/* lang_hooks.tree_size: Determine the size of a tree with code C,
+   which is a language-specific tree code in category tcc_constant or
+   tcc_exceptional.  The default expects never to be called.  */
+size_t
+lhd_tree_size (enum tree_code c ATTRIBUTE_UNUSED)
+{
+  gcc_unreachable ();

 }
 
 }
 

-/* lang_hooks.tree_inlining.add_pending_fn_decls is called before
-   starting to inline a function, to push any language-specific
-   functions that should not be inlined into the current function,
-   into VAFNP.  PFN is the top of varray, and should be returned if no
-   functions are pushed into VAFNP.  The top of the varray should be
-   returned.  */
+/* Return true if decl, which is a function decl, may be called by a
+   sibcall.  */

 
 

-tree
-lhd_tree_inlining_add_pending_fn_decls (vafnp, pfn)
-     void *vafnp ATTRIBUTE_UNUSED;
-     tree pfn;
+bool
+lhd_decl_ok_for_sibcall (const_tree decl ATTRIBUTE_UNUSED)

 {
 {

-  return pfn;
+  return true;

 }
 
 }
 

-/* lang_hooks.tree_inlining.tree_chain_matters_p indicates whether the
-   TREE_CHAIN of a language-specific tree node is relevant, i.e.,
-   whether it should be walked, copied and preserved across copies.  */
+/* lang_hooks.decls.final_write_globals: perform final processing on
+   global variables.  */
+void
+write_global_declarations (void)
+{
+  tree globals, decl, *vec;
+  int len, i;
+
+  /* This lang hook is dual-purposed, and also finalizes the
+     compilation unit.  */
+  cgraph_finalize_compilation_unit ();

 
 

-int
-lhd_tree_inlining_tree_chain_matters_p (t)
-     tree t ATTRIBUTE_UNUSED;
+  /* Really define vars that have had only a tentative definition.
+     Really output inline functions that must actually be callable
+     and have not been output so far.  */
+
+  globals = lang_hooks.decls.getdecls ();
+  len = list_length (globals);
+  vec = XNEWVEC (tree, len);
+
+  /* Process the decls in reverse order--earliest first.
+     Put them into VEC from back to front, then take out from front.  */
+
+  for (i = 0, decl = globals; i < len; i++, decl = TREE_CHAIN (decl))
+    vec[len - i - 1] = decl;
+
+  wrapup_global_declarations (vec, len);
+  check_global_declarations (vec, len);
+  emit_debug_global_declarations (vec, len);
+
+  /* Clean up.  */
+  free (vec);
+}
+
+/* Called to perform language-specific initialization of CTX.  */
+void
+lhd_initialize_diagnostics (struct diagnostic_context *ctx ATTRIBUTE_UNUSED)

 {
 {

-  return 0;

 }
 
 }
 

-/* lang_hooks.tree_inlining.auto_var_in_fn_p is called to determine
-   whether VT is an automatic variable defined in function FT.  */
+/* The default function to print out name of current function that caused
+   an error.  */
+void
+lhd_print_error_function (diagnostic_context *context, const char *file,
+                         diagnostic_info *diagnostic)
+{
+  if (diagnostic_last_function_changed (context, diagnostic))
+    {
+      const char *old_prefix = context->printer->prefix;
+      tree abstract_origin = diagnostic->abstract_origin;
+      char *new_prefix = (file && abstract_origin == NULL)
+                        ? file_name_as_prefix (file) : NULL;
+
+      pp_set_prefix (context->printer, new_prefix);
+
+      if (current_function_decl == NULL)
+       pp_printf (context->printer, _("At top level:"));
+      else
+       {
+         tree fndecl, ao;
+
+         if (abstract_origin)
+           {
+             ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
+             while (TREE_CODE (ao) == BLOCK
+                    && BLOCK_ABSTRACT_ORIGIN (ao)
+                    && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
+               ao = BLOCK_ABSTRACT_ORIGIN (ao);
+             gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
+             fndecl = ao;
+           }
+         else
+           fndecl = current_function_decl;
+
+         if (TREE_CODE (TREE_TYPE (fndecl)) == METHOD_TYPE)
+           pp_printf
+             (context->printer, _("In member function %qs"),
+              identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)));
+         else
+           pp_printf
+             (context->printer, _("In function %qs"),
+              identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)));
+
+         while (abstract_origin)
+           {
+             location_t *locus;
+             tree block = abstract_origin;
+
+             locus = &BLOCK_SOURCE_LOCATION (block);
+             fndecl = NULL;
+             block = BLOCK_SUPERCONTEXT (block);
+             while (block && TREE_CODE (block) == BLOCK
+                    && BLOCK_ABSTRACT_ORIGIN (block))
+               {
+                 ao = BLOCK_ABSTRACT_ORIGIN (block);
+
+                 while (TREE_CODE (ao) == BLOCK
+                        && BLOCK_ABSTRACT_ORIGIN (ao)
+                        && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
+                   ao = BLOCK_ABSTRACT_ORIGIN (ao);
+
+                 if (TREE_CODE (ao) == FUNCTION_DECL)
+                   {
+                     fndecl = ao;
+                     break;
+                   }
+                 else if (TREE_CODE (ao) != BLOCK)
+                   break;
+
+                 block = BLOCK_SUPERCONTEXT (block);
+               }
+             if (fndecl)
+               abstract_origin = block;
+             else
+               {
+                 while (block && TREE_CODE (block) == BLOCK)
+                   block = BLOCK_SUPERCONTEXT (block);
+
+                 if (block && TREE_CODE (block) == FUNCTION_DECL)
+                   fndecl = block;
+                 abstract_origin = NULL;
+               }
+             if (fndecl)
+               {
+                 expanded_location s = expand_location (*locus);
+                 pp_character (context->printer, ',');
+                 pp_newline (context->printer);
+                 if (s.file != NULL)
+                   {
+                     if (flag_show_column)
+                       pp_printf (context->printer,
+                                  _("    inlined from %qs at %s:%d:%d"),
+                                  identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)),
+                                  s.file, s.line, s.column);
+                     else
+                       pp_printf (context->printer,
+                                  _("    inlined from %qs at %s:%d"),
+                                  identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)),
+                                  s.file, s.line);
+
+                   }
+                 else
+                   pp_printf (context->printer, _("    inlined from %qs"),
+                              identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)));
+               }
+           }
+         pp_character (context->printer, ':');
+       }
+
+      diagnostic_set_last_function (context, diagnostic);
+      pp_flush (context->printer);
+      context->printer->prefix = old_prefix;
+      free ((char*) new_prefix);
+    }
+}

 
 

-int
-lhd_tree_inlining_auto_var_in_fn_p (var, fn)
-     tree var, fn;
+tree
+lhd_callgraph_analyze_expr (tree *tp ATTRIBUTE_UNUSED,
+                           int *walk_subtrees ATTRIBUTE_UNUSED)

 {
 {

-  return (DECL_P (var) && DECL_CONTEXT (var) == fn
-         && (((TREE_CODE (var) == VAR_DECL || TREE_CODE (var) == PARM_DECL)
-              && ! TREE_STATIC (var))
-             || TREE_CODE (var) == LABEL_DECL
-             || TREE_CODE (var) == RESULT_DECL));
+  return NULL;

 }
 
 }
 

-/* lang_hooks.tree_inlining.copy_res_decl_for_inlining should return a
-   declaration for the result RES of function FN to be inlined into
-   CALLER.  NDP points to an integer that should be set in case a new
-   declaration wasn't created (presumably because RES was of aggregate
-   type, such that a TARGET_EXPR is used for the result).  TEXPS is a
-   pointer to a varray with the stack of TARGET_EXPRs seen while
-   inlining functions into caller; the top of TEXPS is supposed to
-   match RES.  */
-

 tree
 tree

-lhd_tree_inlining_copy_res_decl_for_inlining (res, fn, caller,
-                                             dm, ndp, return_slot_addr)
-     tree res, fn, caller;
-     void *dm ATTRIBUTE_UNUSED;
-     int *ndp ATTRIBUTE_UNUSED;
-     tree return_slot_addr ATTRIBUTE_UNUSED;
-{
-  if (return_slot_addr)
-    return build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (return_slot_addr)),
-                  return_slot_addr);
-  else
-    return copy_decl_for_inlining (res, fn, caller);
+lhd_make_node (enum tree_code code)
+{
+  return make_node (code);

 }
 
 }
 

-/* lang_hooks.tree_inlining.anon_aggr_type_p determines whether T is a
-   type node representing an anonymous aggregate (union, struct, etc),
-   i.e., one whose members are in the same scope as the union itself.  */
+HOST_WIDE_INT
+lhd_to_target_charset (HOST_WIDE_INT c)
+{
+  return c;
+}

 
 

-int
-lhd_tree_inlining_anon_aggr_type_p (t)
-     tree t ATTRIBUTE_UNUSED;
+tree
+lhd_expr_to_decl (tree expr, bool *tc ATTRIBUTE_UNUSED, bool *se ATTRIBUTE_UNUSED)

 {
 {

-  return 0;
+  return expr;

 }
 
 }
 

-/* lang_hooks.tree_inlining.start_inlining and end_inlining perform any
-   language-specific bookkeeping necessary for processing
-   FN. start_inlining returns nonzero if inlining should proceed, zero if
-   not.
+/* Return sharing kind if OpenMP sharing attribute of DECL is
+   predetermined, OMP_CLAUSE_DEFAULT_UNSPECIFIED otherwise.  */
+
+enum omp_clause_default_kind
+lhd_omp_predetermined_sharing (tree decl ATTRIBUTE_UNUSED)
+{
+  if (DECL_ARTIFICIAL (decl))
+    return OMP_CLAUSE_DEFAULT_SHARED;
+  return OMP_CLAUSE_DEFAULT_UNSPECIFIED;
+}

 
 

-   For instance, the C++ version keeps track of template instantiations to
-   avoid infinite recursion.  */
+/* Generate code to copy SRC to DST.  */

 
 

-int
-lhd_tree_inlining_start_inlining (fn)
-     tree fn ATTRIBUTE_UNUSED;
+tree
+lhd_omp_assignment (tree clause ATTRIBUTE_UNUSED, tree dst, tree src)

 {
 {

-  return 1;
+  return build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src);

 }
 
 }
 

+/* Register language specific type size variables as potentially OpenMP
+   firstprivate variables.  */
+

 void
 void

-lhd_tree_inlining_end_inlining (fn)
-     tree fn ATTRIBUTE_UNUSED;
+lhd_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *c ATTRIBUTE_UNUSED,
+                                  tree t ATTRIBUTE_UNUSED)

 {
 }
 
 {
 }
 

-/* lang_hooks.tree_inlining.convert_parm_for_inlining performs any
-   language-specific conversion before assigning VALUE to PARM.  */
-
-tree
-lhd_tree_inlining_convert_parm_for_inlining (parm, value, fndecl)
-     tree parm ATTRIBUTE_UNUSED;
-     tree value;
-     tree fndecl ATTRIBUTE_UNUSED;
+/* Common function for add_builtin_function and
+   add_builtin_function_ext_scope.  */
+static tree
+add_builtin_function_common (const char *name,
+                            tree type,
+                            int function_code,
+                            enum built_in_class cl,
+                            const char *library_name,
+                            tree attrs,
+                            tree (*hook) (tree))

 {
 {

-  return value;
+  tree   id = get_identifier (name);
+  tree decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, id, type);
+
+  TREE_PUBLIC (decl)         = 1;
+  DECL_EXTERNAL (decl)       = 1;
+  DECL_BUILT_IN_CLASS (decl) = cl;
+
+  DECL_FUNCTION_CODE (decl)  = (enum built_in_function) function_code;
+
+  /* DECL_FUNCTION_CODE is a bitfield; verify that the value fits.  */
+  gcc_assert (DECL_FUNCTION_CODE (decl) == function_code);
+
+  if (library_name)
+    {
+      tree libname = get_identifier (library_name);
+      SET_DECL_ASSEMBLER_NAME (decl, libname);
+    }
+
+  /* Possibly apply some default attributes to this built-in function.  */
+  if (attrs)
+    decl_attributes (&decl, attrs, ATTR_FLAG_BUILT_IN);
+  else
+    decl_attributes (&decl, NULL_TREE, 0);
+
+  return hook (decl);
+

 }
 
 }
 

-/* lang_hooks.tree_dump.dump_tree:  Dump language-specific parts of tree
-   nodes.  Returns nonzero if it does not want the usual dumping of the
-   second argument.  */
+/* Create a builtin function.  */

 
 

-int
-lhd_tree_dump_dump_tree (di, t)
-     void *di ATTRIBUTE_UNUSED;
-     tree t ATTRIBUTE_UNUSED;
+tree
+add_builtin_function (const char *name,
+                     tree type,
+                     int function_code,
+                     enum built_in_class cl,
+                     const char *library_name,
+                     tree attrs)

 {
 {

-  return 0;
+  return add_builtin_function_common (name, type, function_code, cl,
+                                     library_name, attrs,
+                                     lang_hooks.builtin_function);

 }
 
 }
 

-/* lang_hooks.tree_dump.type_qual:  Determine type qualifiers in a
-   language-specific way.  */
+/* Like add_builtin_function, but make sure the scope is the external scope.
+   This is used to delay putting in back end builtin functions until the ISA
+   that defines the builtin is declared via function specific target options,
+   which can save memory for machines like the x86_64 that have multiple ISAs.
+   If this points to the same function as builtin_function, the backend must
+   add all of the builtins at program initialization time.  */

 
 

-int
-lhd_tree_dump_type_quals (t)
-     tree t;
+tree
+add_builtin_function_ext_scope (const char *name,
+                               tree type,
+                               int function_code,
+                               enum built_in_class cl,
+                               const char *library_name,
+                               tree attrs)

 {
 {

-  return TYPE_QUALS (t);
+  return add_builtin_function_common (name, type, function_code, cl,
+                                     library_name, attrs,
+                                     lang_hooks.builtin_function_ext_scope);

 }
 
 }
 

-/* lang_hooks.expr_size: Determine the size of the value of an expression T
-   in a language-specific way.  Returns a tree for the size in bytes.  */
-

 tree
 tree

-lhd_expr_size (exp)
-     tree exp;
+lhd_builtin_function (tree decl)

 {
 {

-  if (TREE_CODE_CLASS (TREE_CODE (exp)) == 'd'
-      && DECL_SIZE_UNIT (exp) != 0)
-    return DECL_SIZE_UNIT (exp);
-  else
-    return size_in_bytes (TREE_TYPE (exp));
+  lang_hooks.decls.pushdecl (decl);
+  return decl;

 }
 
 }
 

-/* lang_hooks.decls.final_write_globals: perform final processing on
-   global variables.  */
+/* LTO hooks.  */
+
+/* Used to save and restore any previously active section.  */
+static section *saved_section;
+
+
+/* Begin a new LTO output section named NAME.  This default implementation
+   saves the old section and emits assembly code to switch to the new
+   section.  */
+

 void
 void

-write_global_declarations ()
+lhd_begin_section (const char *name)

 {
 {

-  /* Really define vars that have had only a tentative definition.
-     Really output inline functions that must actually be callable
-     and have not been output so far.  */
+  section *section;

 
 

-  tree globals = (*lang_hooks.decls.getdecls) ();
-  int len = list_length (globals);
-  tree *vec = (tree *) xmalloc (sizeof (tree) * len);
-  int i;
-  tree decl;
+  /* Save the old section so we can restore it in lto_end_asm_section.  */
+  gcc_assert (!saved_section);
+  saved_section = in_section;

 
 

-  /* Process the decls in reverse order--earliest first.
-     Put them into VEC from back to front, then take out from front.  */
+  /* Create a new section and switch to it.  */
+  section = get_section (name, SECTION_DEBUG, NULL);
+  switch_to_section (section);
+}

 
 

-  for (i = 0, decl = globals; i < len; i++, decl = TREE_CHAIN (decl))
-    vec[len - i - 1] = decl;

 
 

-  wrapup_global_declarations (vec, len);
+/* Write DATA of length LEN to the current LTO output section.  This default
+   implementation just calls assemble_string and frees BLOCK.  */

 
 

-  check_global_declarations (vec, len);
+void
+lhd_append_data (const void *data, size_t len, void *block)
+{
+  if (data)
+    assemble_string ((const char *)data, len);
+  free (block);
+}

 
 

-    /* Clean up.  */
-  free (vec);
+
+/* Finish the current LTO output section.  This default implementation emits
+   assembly code to switch to any section previously saved by
+   lhd_begin_section.  */
+
+void
+lhd_end_section (void)
+{
+  if (saved_section)
+    {
+      switch_to_section (saved_section);
+      saved_section = NULL;
+    }

 }
 }