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diff --git a/test/CodeGen/MIR/machine-function-missing-name.mir b/test/CodeGen/MIR/machine-function-missing-name.mir
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+# RUN: not llc -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# This test ensures that an error is reported when a machine function doesn't
+# have a name attribute.
+
+--- |
+
+ define i32 @foo() {
+ ret i32 0
+ }
+
+ define i32 @bar() {
+ ret i32 0
+ }
+
+...
+---
+# CHECK: [[@LINE+1]]:1: error: missing required key 'name'
+nme: foo
+...
+---
+name: bar
+...
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