gccgo...

gccgo: 	fixes to ast-dump, refactoring of export and ast-dump
        to implement a common interface for writing basic
        type literals and added flags for optimization.

	* lang.opt: Add fgo-optimize-.
	* go-lang.c (go_langhook_handle_option): Handle OPT_fgo_optimize.
	* go-c.h (go_enable_optimize): Declare.
	* Make-lang.in (GO_OBJS): Add go/go-optimize.o.
	(GO_EXPORT_H): Define.
	(GO_IMPORT_H): Add $(GO_EXPORT_H).
	(GO_AST_DUMP_H): Define.
	(go/ast-dump.o, go/statements.o): Use GO_AST_DUMP_H.
	(go/export.o, go/gogo.o, go/import.o): Use GO_EXPORT_H.
	(go/types.o): Likewise.
	(go/expressions.o): Use GO_AST_DUMP_H and GO_EXPORT_H.
	(go/go-optimize.o): New target.

From-SVN: r178046

1 files changed, 38 insertions, 0 deletions

diff --git a/gcc/go/gofrontend/go-optimize.h b/gcc/go/gofrontend/go-optimize.h
new file mode 100644
index 0000000..8638498
--- /dev/null
+++ b/gcc/go/gofrontend/go-optimize.h
@@ -0,0 +1,38 @@
+// go-optimize.h -- Go frontend optimizer flags.    -*- C++ -*-
+
+// Copyright 2011 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 GO_OPTIMIZE_H
+#define GO_OPTIMIZE_H
+
+// This class manages different arguments to -fgo-optimize-XXX.  If you
+// want to create a new optimization, create a variable of this type with the
+// name to use for XXX.  You can then use is_enabled to see whether
+// the -fgo-optimize-XXX option was used on the command line.
+
+class Go_optimize
+{
+ public:
+  Go_optimize(const char* name);
+
+  // Whether this optimizaiton was enabled.
+  bool
+  is_enabled() const
+  { return this->is_enabled_; }
+
+  // Enable an optimization by name.  Return true if found.
+  static bool
+  enable_by_name(const char*);
+
+ private:
+  // The next optimize flag.  These are not in any order.
+  Go_optimize* next_;
+  // The name of this optimization pass.
+  const char* name_;
+  // Whether this dump was enabled.
+  bool is_enabled_;
+};
+
+#endif // !defined(GO_OPTIMIZE_H)