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-rw-r--r--test/fixedbugs/issue48473.go30
1 files changed, 30 insertions, 0 deletions
diff --git a/test/fixedbugs/issue48473.go b/test/fixedbugs/issue48473.go
new file mode 100644
index 0000000..8edef1f
--- /dev/null
+++ b/test/fixedbugs/issue48473.go
@@ -0,0 +1,30 @@
+// run
+
+// Copyright 2021 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
+
+import "fmt"
+
+func f(x uint64) uint64 {
+ s := "\x04"
+ c := s[0]
+ return x - x<<c<<4
+}
+
+func g(x uint32) uint32 {
+ s := "\x04"
+ c := s[0]
+ return x - x<<c<<4
+}
+
+func main() {
+ if want, got := uint64(0xffffffffffffff01), f(1); want != got {
+ panic(fmt.Sprintf("want %x got %x", want, got))
+ }
+ if want, got := uint32(0xffffff01), g(1); want != got {
+ panic(fmt.Sprintf("want %x got %x", want, got))
+ }
+}