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-rw-r--r--src/test/mir-opt/const_prop/mult_by_zero.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/test/mir-opt/const_prop/mult_by_zero.rs b/src/test/mir-opt/const_prop/mult_by_zero.rs
index b0ecdf181..c839f92f2 100644
--- a/src/test/mir-opt/const_prop/mult_by_zero.rs
+++ b/src/test/mir-opt/const_prop/mult_by_zero.rs
@@ -1,3 +1,4 @@
+// unit-test
// compile-flags: -O -Zmir-opt-level=4
// EMIT_MIR mult_by_zero.test.ConstProp.diff