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-rw-r--r--test/fixedbugs/issue23305.go28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/fixedbugs/issue23305.go b/test/fixedbugs/issue23305.go
new file mode 100644
index 0000000..28f400c
--- /dev/null
+++ b/test/fixedbugs/issue23305.go
@@ -0,0 +1,28 @@
+// run
+
+// Copyright 2018 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 mask1(a, b uint64) uint64 {
+ op1 := int32(a)
+ op2 := int32(b)
+ return uint64(uint32(op1 / op2))
+}
+
+var mask2 = mask1
+
+func main() {
+ res1 := mask1(0x1, 0xfffffffeffffffff)
+ res2 := mask2(0x1, 0xfffffffeffffffff)
+ if res1 != 0xffffffff {
+ println("got", res1, "want", 0xffffffff)
+ panic("FAIL")
+ }
+ if res2 != 0xffffffff {
+ println("got", res2, "want", 0xffffffff)
+ panic("FAIL")
+ }
+}