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-rw-r--r--testsuite/tests/basic/patmatch.ml12
1 files changed, 12 insertions, 0 deletions
diff --git a/testsuite/tests/basic/patmatch.ml b/testsuite/tests/basic/patmatch.ml
index 476d237559..e3f1453c05 100644
--- a/testsuite/tests/basic/patmatch.ml
+++ b/testsuite/tests/basic/patmatch.ml
@@ -155,3 +155,15 @@ let test e b =
let () =
let r = test Foo false in
if r = 0 then printf "PR#5788=Ok\n"
+
+
+(* No string sharing PR#6322 *)
+let test x = match x with
+ | true -> "a"
+ | false -> "a"
+
+let () =
+ let s1 = test true in
+ let s2 = test false in
+ s1.[0] <- 'p';
+ if s1 <> s2 then printf "PR#6322=Ok\n%!"