/* Default language-specific hooks.
- Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Alexandre Oliva <aoliva@redhat.com>
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,
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, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "toplev.h"
#include "tree.h"
#include "tree-inline.h"
-#include "tree-gimple.h"
+#include "gimple.h"
#include "rtl.h"
#include "insn-config.h"
#include "integrate.h"
{
}
-/* Do nothing (return the tree node passed). */
+/* Do nothing (return NULL_TREE). */
tree
-lhd_return_tree (tree t)
+lhd_return_null_tree_v (void)
{
- return t;
+ return NULL_TREE;
}
/* Do nothing (return NULL_TREE). */
tree
-lhd_return_null_tree_v (void)
+lhd_return_null_tree (tree ARG_UNUSED (t))
{
return NULL_TREE;
}
/* Do nothing (return NULL_TREE). */
tree
-lhd_return_null_tree (tree ARG_UNUSED (t))
+lhd_return_null_const_tree (const_tree ARG_UNUSED (t))
{
return NULL_TREE;
}
bool
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 staticp. */
-
-tree
-lhd_staticp (tree ARG_UNUSED (exp))
-{
- return NULL;
-}
-
/* Called from check_global_declarations. */
bool
-lhd_warn_unused_global_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. */
- 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;
/* Invalid use of an incomplete type. */
void
-lhd_incomplete_type_error (tree ARG_UNUSED (value), tree type)
+lhd_incomplete_type_error (const_tree ARG_UNUSED (value), const_tree type)
{
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. */
-HOST_WIDE_INT
+alias_set_type
lhd_get_alias_set (tree ARG_UNUSED (t))
{
return -1;
}
-/* This is the default expand_expr function. */
-
-rtx
-lhd_expand_expr (tree ARG_UNUSED (t), rtx ARG_UNUSED (r),
- enum machine_mode ARG_UNUSED (mm),
- int ARG_UNUSED (em),
- rtx * ARG_UNUSED (a))
-{
- gcc_unreachable ();
-}
-
-/* The default language-specific function for expanding a decl. After
- the language-independent cases are handled, this function will be
- called. If this function is not defined, it is assumed that
- declarations other than those for variables and labels do not require
- any RTL generation. */
-
-int
-lhd_expand_decl (tree ARG_UNUSED (t))
-{
- return 0;
-}
-
/* This is the default decl_printable_name function. */
const char *
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. The generic handling
- cannot deal with language-specific tree codes, so make sure it is
- set properly. Both SUBTREES and *SUBTREES is guaranteed to be
- nonzero when the function is called. */
-
-tree
-lhd_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
- int *subtrees ATTRIBUTE_UNUSED,
- walk_tree_fn func ATTRIBUTE_UNUSED,
- void *data ATTRIBUTE_UNUSED,
- struct pointer_set_t *pset ATTRIBUTE_UNUSED)
-{
- return NULL_TREE;
-}
-
-/* lang_hooks.tree_inlining.cannot_inline_tree_fn is called to
- determine whether there are language-specific reasons for not
- inlining a given function. */
-
-int
-lhd_tree_inlining_cannot_inline_tree_fn (tree *fnp)
-{
- if (flag_really_no_inline
- && lookup_attribute ("always_inline", DECL_ATTRIBUTES (*fnp)) == NULL)
- return 1;
-
- return 0;
-}
-
-/* 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. */
-
-int
-lhd_tree_inlining_disregard_inline_limits (tree fn)
-{
- if (lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) != NULL)
- return 1;
-
- 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. */
-
-int
-lhd_tree_inlining_auto_var_in_fn_p (tree var, tree fn)
-{
- 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));
-}
-
-/* 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 (tree parm ATTRIBUTE_UNUSED,
- tree value,
- tree fndecl ATTRIBUTE_UNUSED,
- int argnum ATTRIBUTE_UNUSED)
-{
- return value;
-}
-
/* 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. */
language-specific way. */
int
-lhd_tree_dump_type_quals (tree t)
+lhd_tree_dump_type_quals (const_tree t)
{
return TYPE_QUALS (t);
}
in a language-specific way. Returns a tree for the size in bytes. */
tree
-lhd_expr_size (tree exp)
+lhd_expr_size (const_tree exp)
{
if (DECL_P (exp)
&& DECL_SIZE_UNIT (exp) != 0)
/* lang_hooks.gimplify_expr re-writes *EXPR_P into GIMPLE form. */
int
-lhd_gimplify_expr (tree *expr_p ATTRIBUTE_UNUSED, tree *pre_p ATTRIBUTE_UNUSED,
- tree *post_p ATTRIBUTE_UNUSED)
+lhd_gimplify_expr (tree *expr_p ATTRIBUTE_UNUSED,
+ gimple_seq *pre_p ATTRIBUTE_UNUSED,
+ gimple_seq *post_p ATTRIBUTE_UNUSED)
{
return GS_UNHANDLED;
}
sibcall. */
bool
-lhd_decl_ok_for_sibcall (tree decl ATTRIBUTE_UNUSED)
+lhd_decl_ok_for_sibcall (const_tree decl ATTRIBUTE_UNUSED)
{
return true;
}
-/* Return the COMDAT group into which DECL should be placed. */
-
-const char *
-lhd_comdat_group (tree decl)
-{
- return IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
-}
-
/* lang_hooks.decls.final_write_globals: perform final processing on
global variables. */
void
/* 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)
+lhd_print_error_function (diagnostic_context *context, const char *file,
+ diagnostic_info *diagnostic)
{
- if (diagnostic_last_function_changed (context))
+ if (diagnostic_last_function_changed (context, diagnostic))
{
const char *old_prefix = context->printer->prefix;
- char *new_prefix = file ? file_name_as_prefix (file) : NULL;
+ 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);
pp_printf (context->printer, _("At top level:"));
else
{
- if (TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE)
+ 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:"),
- lang_hooks.decl_printable_name (current_function_decl, 2));
+ (context->printer, _("In member function %qs"),
+ identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)));
else
pp_printf
- (context->printer, _("In function %qs:"),
- lang_hooks.decl_printable_name (current_function_decl, 2));
+ (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_set_last_function (context, diagnostic);
pp_flush (context->printer);
context->printer->prefix = old_prefix;
free ((char*) new_prefix);
tree
lhd_callgraph_analyze_expr (tree *tp ATTRIBUTE_UNUSED,
- int *walk_subtrees ATTRIBUTE_UNUSED,
- tree decl ATTRIBUTE_UNUSED)
+ int *walk_subtrees ATTRIBUTE_UNUSED)
{
return NULL;
}
}
tree
-lhd_expr_to_decl (tree expr, bool *tc ATTRIBUTE_UNUSED,
- bool *ti ATTRIBUTE_UNUSED, bool *se ATTRIBUTE_UNUSED)
+lhd_expr_to_decl (tree expr, bool *tc ATTRIBUTE_UNUSED, bool *se ATTRIBUTE_UNUSED)
{
return expr;
}
tree
lhd_omp_assignment (tree clause ATTRIBUTE_UNUSED, tree dst, tree src)
{
- return build_gimple_modify_stmt (dst, src);
+ return build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src);
}
/* Register language specific type size variables as potentially OpenMP
{
}
-tree
-add_builtin_function (const char *name,
- tree type,
- int function_code,
- enum built_in_class cl,
- const char *library_name,
- tree attrs)
+/* 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))
{
tree id = get_identifier (name);
- tree decl = build_decl (FUNCTION_DECL, id, type);
+ 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) = function_code;
+
+ 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)
{
else
decl_attributes (&decl, NULL_TREE, 0);
- return lang_hooks.builtin_function (decl);
+ return hook (decl);
}
+/* Create a builtin function. */
+
tree
-lhd_builtin_function (tree decl)
+add_builtin_function (const char *name,
+ tree type,
+ int function_code,
+ enum built_in_class cl,
+ const char *library_name,
+ tree attrs)
{
- lang_hooks.decls.pushdecl (decl);
- return decl;
+ return add_builtin_function_common (name, type, function_code, cl,
+ library_name, attrs,
+ lang_hooks.builtin_function);
}
-/* If TYPE is an integral type, return an equivalent type which is
- unsigned iff UNSIGNEDP is true. If TYPE is not an integral type,
- return TYPE itself. */
+/* 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. */
tree
-get_signed_or_unsigned_type (int unsignedp, tree type)
+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 lang_hooks.types.signed_or_unsigned_type(unsignedp, type);
+ return add_builtin_function_common (name, type, function_code, cl,
+ library_name, attrs,
+ lang_hooks.builtin_function_ext_scope);
}
-/* Default implementation of the signed_or_unsigned_type language hook */
-
tree
-lhd_signed_or_unsigned_type (int unsignedp, tree type)
+lhd_builtin_function (tree decl)
{
- if (!INTEGRAL_TYPE_P (type) || TYPE_UNSIGNED (type) == unsignedp)
- return type;
-
- return lang_hooks.types.type_for_size (TYPE_PRECISION (type), unsignedp);
+ lang_hooks.decls.pushdecl (decl);
+ return decl;
}