1 files changed, 17 insertions, 0 deletions

diff --git a/test/CodeGen/MIR/Generic/machine-basic-block-ir-block-reference.mir b/test/CodeGen/MIR/Generic/machine-basic-block-ir-block-reference.mir
new file mode 100644
index 000000000000..d6ecd5dc8514
--- /dev/null
+++ b/test/CodeGen/MIR/Generic/machine-basic-block-ir-block-reference.mir
@@ -0,0 +1,17 @@
+# RUN: llc -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
+# This test ensures that the MIR parser preserves unnamed LLVM IR block
+# references.
+
+--- |
+
+  define i32 @foo() {
+    ret i32 0
+  }
+
+...
+---
+name:            foo
+body: |
+  ; CHECK: bb.0 (%ir-block.0):
+  bb.0 (%ir-block.0):
+...