Add Go frontend, libgo library, and Go testsuite.

gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407

1 files changed, 28 insertions, 0 deletions

diff --git a/libgo/runtime/array.h b/libgo/runtime/array.h
new file mode 100644
index 0000000..f6d0261
--- /dev/null
+++ b/libgo/runtime/array.h
@@ -0,0 +1,28 @@
+/* array.h -- the open array type for Go.
+
+   Copyright 2009 The Go Authors. All rights reserved.
+   Use of this source code is governed by a BSD-style
+   license that can be found in the LICENSE file.  */
+
+#ifndef LIBGO_ARRAY_H
+#define LIBGO_ARRAY_H
+
+/* An open array is an instance of this structure.  */
+
+struct __go_open_array
+{
+  /* The elements of the array.  In use in the compiler this is a
+     pointer to the element type.  */
+  void* __values;
+  /* The number of elements in the array.  Note that this is "int",
+     not "size_t".  The language definition says that "int" is large
+     enough to hold the size of any allocated object.  Using "int"
+     saves 8 bytes per slice header on a 64-bit system with 32-bit
+     ints.  */
+  int __count;
+  /* The capacity of the array--the number of elements that can fit in
+     the __VALUES field.  */
+  int __capacity;
+};
+
+#endif /* !defined(LIBGO_ARRAY_H) */