cmd/compile: add test for issue 37246

CL 233857 fixed the underlying issue for #37246,
which had arisen again as #38916.

Add the test case from #37246 to ensure it stays fixed.

Fixes #37246

Change-Id: If7fd75a096d2ce4364dc15509253c3882838161d
Reviewed-on: https://go-review.googlesource.com/c/go/+/233941
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Munday <mike.munday@ibm.com>

diff --git a/test/fixedbugs/issue37246.go b/test/fixedbugs/issue37246.go
new file mode 100644 (file)
index 0000000..fe476da
--- /dev/null
+++ b/test/fixedbugs/issue37246.go
@@ -0,0 +1,23 @@
+// compile
+
+// Copyright 2020 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 main() {
+       var n, a, b int64
+       for i := int64(2); i < 10; i++ {
+               for j := i; j < 10; j++ {
+                       if ((n % (i * j)) == 0) && (j > 1 && (n/(i*j)) == 1) {
+                               a, b = i, 0
+                               a = n / (i * j)
+                       }
+               }
+       }
+
+       if a != b && a != n {
+               println("yes")
+       }
+}