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-rw-r--r--test/fixedbugs/issue15585.go45
1 files changed, 45 insertions, 0 deletions
diff --git a/test/fixedbugs/issue15585.go b/test/fixedbugs/issue15585.go
new file mode 100644
index 0000000..79eb13f
--- /dev/null
+++ b/test/fixedbugs/issue15585.go
@@ -0,0 +1,45 @@
+// compile
+
+// Copyright 2016 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 bug
+
+func example(n int) (rc int) {
+ var cc, ll, pp, rr [27]int
+ for q0 := 0; q0 < n-2; q0++ {
+ for q1 := q0 + 2; q1 < n; q1++ {
+ var c, d, l, p, r int
+ b0 := 1 << uint(q0)
+ b1 := 1 << uint(q1)
+ l = ((b0 << 1) | b1) << 1
+ c = b0 | b1 | (-1 << uint(n))
+ r = ((b0 >> 1) | b1) >> 1
+ E:
+ if c != -1 {
+ p = ^(l | c | r)
+ } else {
+ rc++
+ goto R
+ }
+ L:
+ if p != 0 {
+ lsb := p & -p
+ p &^= lsb
+ ll[d], cc[d], rr[d], pp[d] = l, c, r, p
+ l, c, r = (l|lsb)<<1, c|lsb, (r|lsb)>>1
+ d++
+ goto E
+ }
+ R:
+ d--
+ if d >= 0 {
+ l, c, r, p = ll[d], cc[d], rr[d], pp[d]
+ goto L
+ }
+ }
+ }
+ rc <<= 1
+ return
+}