runtime: allow large map values

Fixes #772.

R=ken2
CC=golang-dev
https://golang.org/cl/1206043

1 files changed, 34 insertions, 0 deletions

diff --git a/test/bigmap.go b/test/bigmap.go
new file mode 100644
index 0000000000..843a151741
--- /dev/null
+++ b/test/bigmap.go
@@ -0,0 +1,34 @@
+// $G $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.
+
+package main
+
+func seq(x, y int) [1000]byte {
+	var r [1000]byte
+	for i := 0; i < len(r); i++ {
+		r[i] = byte(x + i*y)
+	}
+	return r
+}
+
+func cmp(x, y [1000]byte) {
+	for i := 0; i < len(x); i++ {
+		if x[i] != y[i] {
+			panic("BUG mismatch")
+		}
+	}
+}
+
+func main() {
+	m := make(map[int][1000]byte)
+	m[1] = seq(11, 13)
+	m[2] = seq(2, 9)
+	m[3] = seq(3, 17)
+
+	cmp(m[1], seq(11, 13))
+	cmp(m[2], seq(2, 9))
+	cmp(m[3], seq(3, 17))
+}