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-rw-r--r--test/fixedbugs/issue5809.go27
1 files changed, 27 insertions, 0 deletions
diff --git a/test/fixedbugs/issue5809.go b/test/fixedbugs/issue5809.go
new file mode 100644
index 0000000..fc8eeef
--- /dev/null
+++ b/test/fixedbugs/issue5809.go
@@ -0,0 +1,27 @@
+// run
+
+// Copyright 2013 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.
+
+// issue 5809: 6g and 8g attempted to constant propagate indexed LEA
+
+package main
+
+import "fmt"
+
+func main() {
+ const d16 = "0123456789ABCDEF"
+ k := 0x1234
+ var x [4]byte
+
+ x[0] = d16[k>>12&0xf]
+ x[1] = d16[k>>8&0xf]
+ x[2] = d16[k>>4&0xf]
+ x[3] = d16[k&0xf]
+
+ if x != [4]byte{'1','2','3','4'} {
+ fmt.Println(x)
+ panic("x != [4]byte{'1','2','3','4'}")
+ }
+}