Add testcase for r133050 which added support for printing and parsing escaped

names for named metadata nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133166 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Assembler/named-metadata.ll b/test/Assembler/named-metadata.ll
new file mode 100644 (file)
index 0000000..db72810
--- /dev/null
+++ b/test/Assembler/named-metadata.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-as < %s | llvm-dis | FileCheck %s
+
+!0 = metadata !{metadata !"zero"}
+!1 = metadata !{metadata !"one"}
+!2 = metadata !{metadata !"two"}
+
+!foo = !{!0, !1, !2}
+; CHECK: !foo = !{!0, !1, !2}
+
+!\23pragma = !{!0, !1, !2}
+; CHECK: !\23pragma = !{!0, !1, !2}
+
+; \31 is the digit '1'. On emission, we escape the first character (to avoid
+; conflicting with anonymous metadata), but not the subsequent ones.
+!\31\31\31 = !{!0, !1, !2}
+; CHECK: !\3111 = !{!0, !1, !2}
+
+!\22name\22 = !{!0, !1, !2}
+; CHECK: !\22name\22 = !{!0, !1, !2}
+
+; \x doesn't mean anything, so we parse it literally but escape the \ into \5C
+; when emitting it, followed by xfoo.
+!\xfoo = !{!0, !1, !2}
+; CHECK: !\5Cxfoo = !{!0, !1, !2}