test: add fixed GoSmith bugs reported on the gcc Bugzilla

Change-Id: I36b57f3e299a4f96b8b5aa55c9c224d888229684
Reviewed-on: https://go-review.googlesource.com/1790Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

test/fixedbugs/gcc61204.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61204: Making temporaries for zero-sized types caused an ICE in gccgo.
+// This is a reduction of a program reported by GoSmith.
+
+package main
+
+func main() {
+	type t [0]int
+	var v t
+	v, _ = [0]int{}, 0
+	_ = v
+}

test/fixedbugs/gcc61244.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61244: Type descriptors expressions were not traversed, causing an ICE
+// in gccgo when producing the backend representation.
+// This is a reduction of a program reported by GoSmith.
+
+package main
+
+const a = 0
+
+func main() {
+	switch i := (interface{})(a); i.(type) {
+	case [0]string:
+	}
+}

test/fixedbugs/gcc61246.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61246: Switch conditions could be untyped, causing an ICE when the
+// conditions were lowered into temporaries.
+// This is a reduction of a program reported by GoSmith.
+
+package main
+
+func main() {
+	switch 1 != 1 {
+	default:
+	}
+}

test/fixedbugs/gcc61248.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61248: Transformations to recover calls made them fail typechecking in gccgo.
+
+package main
+
+func main() {
+	var f func(int, interface{})
+	go f(0, recover())
+}

test/fixedbugs/gcc61253.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61253: gccgo incorrectly parsed the
+// `RecvStmt = ExpressionList "=" RecvExpr` production.
+
+package main
+
+func main() {
+	c := make(chan int)
+	v := new(int)
+	b := new(bool)
+	select {
+	case (*v), (*b) = <-c:
+	}
+
+}

test/fixedbugs/gcc61254.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61254: gccgo failed to compile a slice expression with missing indices.
+
+package main
+
+func main() {
+	[][]int{}[:][0][0]++
+}

test/fixedbugs/gcc61255.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61255: gccgo failed to compile IncDec statements on variadic functions.
+
+package main
+
+func main() {
+	append([]byte{}, 0)[0]++
+}

test/fixedbugs/gcc61258.go

+// run
+
+// Copyright 2014 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.
+
+// PR61258: gccgo crashed when deleting a zero-sized key from a map.
+
+package main
+
+func main() {
+	delete(make(map[[0]bool]int), [0]bool{})
+}

test/fixedbugs/gcc61264.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61264: IncDec statements involving composite literals caused in ICE in gccgo.
+
+package main
+
+func main() {
+        map[int]int{}[0]++
+}

test/fixedbugs/gcc61265.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61265: The gccgo middle-end failed to represent array composite literals
+// where the elements are zero-sized values.
+// This is a reduction of a program reported by GoSmith.
+
+package p
+
+var a = [1][0]int{B}[0]
+var B = [0]int{}
+var c = [1]struct{}{D}[0]
+var D = struct{}{}

test/fixedbugs/gcc61273.go

+// compile
+
+// Copyright 2014 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.
+
+// PR61273: gccgo failed to compile a SendStmt in the PostStmt of a ForClause
+// that involved predefined constants.
+
+package main
+
+func main() {
+	c := make(chan bool, 1)
+	for ; false; c <- false {
+	}
+}