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-rw-r--r--test/fixedbugs/issue41872.go26
1 files changed, 26 insertions, 0 deletions
diff --git a/test/fixedbugs/issue41872.go b/test/fixedbugs/issue41872.go
new file mode 100644
index 0000000..837d61a
--- /dev/null
+++ b/test/fixedbugs/issue41872.go
@@ -0,0 +1,26 @@
+// run
+
+// 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
+
+//go:noinline
+func f8(x int32) bool {
+ return byte(x&0xc0) == 64
+}
+
+//go:noinline
+func f16(x int32) bool {
+ return uint16(x&0x8040) == 64
+}
+
+func main() {
+ if !f8(64) {
+ panic("wanted true, got false")
+ }
+ if !f16(64) {
+ panic("wanted true, got false")
+ }
+}