gcc/ChangeLog:

	* c-common.c: Move to c-family/.
	* c-common.def: Likewise.
	* c-common.h: Likewise.
	* c-cppbuiltin.c: Likewise.
	* c-dump.c: Likewise.
	* c-format.c: Likewise.
	* c-format.h : Likewise.
	* c-gimplify.c: Likewise.
	* c-lex.c: Likewise.
	* c-omp.c: Likewise.
	* c.opt: Likewise.
	* c-opts.c: Likewise.
	* c-pch.c: Likewise.
	* c-ppoutput.c: Likewise.
	* c-pragma.c: Likewise.
	* c-pragma.h: Likewise.
	* c-pretty-print.c: Likewise.
	* c-pretty-print.h: Likewise.
	* c-semantics.c: Likewise.
	* stub-objc.c: Likewise.

	* gengtype.c (get_file_langdir): Special-case files in c-family/.
	(get_output_file_with_visibility): Fix name for c-common.h.
	* c-config-lang.in: Update paths in gtfiles for files in c-family/.

	* c-tree.h: Update include path for moved files.
	* c-lang.c: Likewise.
	* c-lang.h: Likewise.
	* c-parser.c: Likewise.
	* c-convert.c: Likewise.
	* c-decl.c: Likewise.
	* c-objc-common.c: Likewise.
	* configure.ac: Make sure c-family/ exists in the build directory.
	* configure: Regenerate.
	* Makefile.in: Update paths for moved files.  Regroup files per
	location and update dependencies.  Move generated_files down after
	ALL_GTFILES_H.

	* config/spu/spu-c.c: Update paths for moved files.
	* config/mep/mep-pragma.c: Likewise.
	* config/darwin-c.c: Likewise.
	* config/i386/msformat-c.c: Likewise.
	* config/i386/i386-c.c: Likewise.
	* config/avr/avr-c.c: Likewise.
	* config/sol2-c.c: Likewise.
	* config/ia64/ia64-c.c: Likewise.
	* config/rs6000/rs6000-c.c: Likewise.
	* config/arm/arm.c: Likewise.
	* config/arm/arm-c.c: Likewise.
	* config/h8300/h8300.c: Likewise.
	* config/v850/v850-c.c: Likewise.

	* config/t-darwin: Fix dependencies for moved files.
	* config/t-sol2: Fix dependencies for moved files.
	* config/mep/t-mep: Fix dependencies for moved files.
	* config/ia64/t-ia64: Fix dependencies for moved files.
	* config/rs6000/t-rs6000: Fix dependencies for moved files.
	* config/v850/t-v850: Fix dependencies for moved files.
	* config/v850/t-v850e: Fix dependencies for moved files.

	* config/m32c/m32c-pragma.c

	* po/exgettext: Look in c-family/ also.

c-family/ChangeLog:
	* c-common.c: Include gt-c-family-c-common.h.
	* c-pragma.c: Include gt-c-family-c-pragma.h.

objc/ChangeLog:
	* objc-act.c: Update include path for moved files.
	* objc-lang.c: Likewise.
	* config-lang.in: Update paths in gtfiles for files in c-family/.

objcp/ChangeLog:
	* objcp-lang.c: Update include path for moved files.
	* config-lang.in: Update paths in gtfiles for files in c-family/.

cp/ChangeLog:
	* typeck.c: Update include path for moved files.
	* decl.c: Likewise.
	* rtti.c: Likewise.
	* cp-gimplify.c: Likewise.
	* cp-lang.c: Likewise.
	* pt.c: Likewise.
	* semantics.c: Likewise.
	* cxx-pretty-print.h: Likewise.
	* decl2.c: Likewise.
	* parser.c: Likewise.
	* cp-objcp-common.c: Likewise.
	* cp-tree.h: Likewise.
	* name-lookup.c: Likewise.
	* lex.c: Likewise.
	* name-lookup.h: Likewise.
	* config-lang.in: Update paths in gtfiles for files in c-family/.
	* Make-lang.in: Likewise.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160330 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 190 insertions, 0 deletions

diff --git a/gcc/c-family/c-gimplify.c b/gcc/c-family/c-gimplify.c
new file mode 100644
index 00000000000..06963a05e71
--- /dev/null
+++ b/gcc/c-family/c-gimplify.c
@@ -0,0 +1,190 @@
+/* Tree lowering pass.  This pass gimplifies the tree representation built
+   by the C-based front ends.  The structure of gimplified, or
+   language-independent, trees is dictated by the grammar described in this
+   file.
+   Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
+   Lowering of expressions contributed by Sebastian Pop <s.pop@laposte.net>
+   Re-written to support lowering of whole function trees, documentation
+   and miscellaneous cleanups by Diego Novillo <dnovillo@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 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of 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
+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 "tm.h"
+#include "tree.h"
+#include "c-common.h"
+#include "gimple.h"
+#include "basic-block.h"
+#include "tree-flow.h"
+#include "tree-inline.h"
+#include "diagnostic-core.h"
+#include "langhooks.h"
+#include "langhooks-def.h"
+#include "flags.h"
+#include "toplev.h"
+#include "tree-dump.h"
+#include "c-pretty-print.h"
+#include "cgraph.h"
+
+
+/*  The gimplification pass converts the language-dependent trees
+    (ld-trees) emitted by the parser into language-independent trees
+    (li-trees) that are the target of SSA analysis and transformations.
+
+    Language-independent trees are based on the SIMPLE intermediate
+    representation used in the McCAT compiler framework:
+
+    "Designing the McCAT Compiler Based on a Family of Structured
+    Intermediate Representations,"
+    L. Hendren, C. Donawa, M. Emami, G. Gao, Justiani, and B. Sridharan,
+    Proceedings of the 5th International Workshop on Languages and
+    Compilers for Parallel Computing, no. 757 in Lecture Notes in
+    Computer Science, New Haven, Connecticut, pp. 406-420,
+    Springer-Verlag, August 3-5, 1992.
+
+    http://www-acaps.cs.mcgill.ca/info/McCAT/McCAT.html
+
+    Basically, we walk down gimplifying the nodes that we encounter.  As we
+    walk back up, we check that they fit our constraints, and copy them
+    into temporaries if not.  */
+
+/* Gimplification of statement trees.  */
+
+/* Convert the tree representation of FNDECL from C frontend trees to
+   GENERIC.  */
+
+void
+c_genericize (tree fndecl)
+{
+  FILE *dump_orig;
+  int local_dump_flags;
+  struct cgraph_node *cgn;
+
+  /* Dump the C-specific tree IR.  */
+  dump_orig = dump_begin (TDI_original, &local_dump_flags);
+  if (dump_orig)
+    {
+      fprintf (dump_orig, "\n;; Function %s",
+	       lang_hooks.decl_printable_name (fndecl, 2));
+      fprintf (dump_orig, " (%s)\n",
+	       (!DECL_ASSEMBLER_NAME_SET_P (fndecl) ? "null"
+		: IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl))));
+      fprintf (dump_orig, ";; enabled by -%s\n", dump_flag_name (TDI_original));
+      fprintf (dump_orig, "\n");
+
+      if (local_dump_flags & TDF_RAW)
+	dump_node (DECL_SAVED_TREE (fndecl),
+		   TDF_SLIM | local_dump_flags, dump_orig);
+      else
+	print_c_tree (dump_orig, DECL_SAVED_TREE (fndecl));
+      fprintf (dump_orig, "\n");
+
+      dump_end (TDI_original, dump_orig);
+    }
+
+  /* Dump all nested functions now.  */
+  cgn = cgraph_node (fndecl);
+  for (cgn = cgn->nested; cgn ; cgn = cgn->next_nested)
+    c_genericize (cgn->decl);
+}
+
+static void
+add_block_to_enclosing (tree block)
+{
+  unsigned i;
+  tree enclosing;
+  gimple bind;
+  VEC(gimple, heap) *stack = gimple_bind_expr_stack ();
+
+  for (i = 0; VEC_iterate (gimple, stack, i, bind); i++)
+    if (gimple_bind_block (bind))
+      break;
+
+  enclosing = gimple_bind_block (bind);
+  BLOCK_SUBBLOCKS (enclosing) = chainon (BLOCK_SUBBLOCKS (enclosing), block);
+}
+
+/* Genericize a scope by creating a new BIND_EXPR.
+   BLOCK is either a BLOCK representing the scope or a chain of _DECLs.
+     In the latter case, we need to create a new BLOCK and add it to the
+     BLOCK_SUBBLOCKS of the enclosing block.
+   BODY is a chain of C _STMT nodes for the contents of the scope, to be
+     genericized.  */
+
+tree
+c_build_bind_expr (location_t loc, tree block, tree body)
+{
+  tree decls, bind;
+
+  if (block == NULL_TREE)
+    decls = NULL_TREE;
+  else if (TREE_CODE (block) == BLOCK)
+    decls = BLOCK_VARS (block);
+  else
+    {
+      decls = block;
+      if (DECL_ARTIFICIAL (decls))
+	block = NULL_TREE;
+      else
+	{
+	  block = make_node (BLOCK);
+	  BLOCK_VARS (block) = decls;
+	  add_block_to_enclosing (block);
+	}
+    }
+
+  if (!body)
+    body = build_empty_stmt (loc);
+  if (decls || block)
+    {
+      bind = build3 (BIND_EXPR, void_type_node, decls, body, block);
+      TREE_SIDE_EFFECTS (bind) = 1;
+      SET_EXPR_LOCATION (bind, loc);
+    }
+  else
+    bind = body;
+
+  return bind;
+}
+
+/* Gimplification of expression trees.  */
+
+/* Do C-specific gimplification on *EXPR_P.  PRE_P and POST_P are as in
+   gimplify_expr.  */
+
+int
+c_gimplify_expr (tree *expr_p, gimple_seq *pre_p ATTRIBUTE_UNUSED,
+		 gimple_seq *post_p ATTRIBUTE_UNUSED)
+{
+  enum tree_code code = TREE_CODE (*expr_p);
+
+  /* This is handled mostly by gimplify.c, but we have to deal with
+     not warning about int x = x; as it is a GCC extension to turn off
+     this warning but only if warn_init_self is zero.  */
+  if (code == DECL_EXPR
+      && TREE_CODE (DECL_EXPR_DECL (*expr_p)) == VAR_DECL
+      && !DECL_EXTERNAL (DECL_EXPR_DECL (*expr_p))
+      && !TREE_STATIC (DECL_EXPR_DECL (*expr_p))
+      && (DECL_INITIAL (DECL_EXPR_DECL (*expr_p)) == DECL_EXPR_DECL (*expr_p))
+      && !warn_init_self)
+    TREE_NO_WARNING (DECL_EXPR_DECL (*expr_p)) = 1;
+
+  return GS_UNHANDLED;
+}