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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167407 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 67 insertions, 0 deletions

diff --git a/gcc/testsuite/go.test/test/mallocfin.go b/gcc/testsuite/go.test/test/mallocfin.go
new file mode 100644
index 00000000000..dc6d74bad68
--- /dev/null
+++ b/gcc/testsuite/go.test/test/mallocfin.go
@@ -0,0 +1,67 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// 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.
+
+// trivial finalizer test
+
+package main
+
+import (
+	"runtime"
+	"time"
+)
+
+const N = 250
+
+type A struct {
+	b *B
+	n int
+}
+
+type B struct {
+	n int
+}
+
+var i int
+var nfinal int
+var final [N]int
+
+// the unused return is to test finalizers with return values
+func finalA(a *A) (unused [N]int) {
+	if final[a.n] != 0 {
+		println("finalA", a.n, final[a.n])
+		panic("fail")
+	}
+	final[a.n] = 1
+	return
+}
+
+func finalB(b *B) {
+	if final[b.n] != 1 {
+		println("finalB", b.n, final[b.n])
+		panic("fail")
+	}
+	final[b.n] = 2
+	nfinal++
+}
+
+func main() {
+	runtime.GOMAXPROCS(4)
+	for i = 0; i < N; i++ {
+		b := &B{i}
+		a := &A{b, i}
+		runtime.SetFinalizer(b, finalB)
+		runtime.SetFinalizer(a, finalA)
+	}
+	for i := 0; i < N; i++ {
+		runtime.GC()
+		runtime.Gosched()
+		time.Sleep(1e6)
+	}
+	if nfinal < N*8/10 {
+		println("not enough finalizing:", nfinal, "/", N)
+		panic("fail")
+	}
+}