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diff --git a/test/Transforms/SimplifyLibCalls/2009-02-11-NotInitialized.ll b/test/Transforms/SimplifyLibCalls/2009-02-11-NotInitialized.ll
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+; RUN: opt < %s -inline -simplify-libcalls -functionattrs | \
+; RUN: llvm-dis | grep nocapture | count 2
+; Check that nocapture attributes are added when run after an SCC pass.
+; PR3520
+
+define i32 @use(i8* %x) nounwind readonly {
+entry:
+ %0 = tail call i64 @strlen(i8* %x) nounwind readonly ; <i64> [#uses=1]
+ %1 = trunc i64 %0 to i32 ; <i32> [#uses=1]
+ ret i32 %1
+}
+
+declare i64 @strlen(i8*) nounwind readonly