TableGen: Generate valid identifiers for anonymous records

Backends like OptParserEmitter assume that record names can be used as valid
identifiers.

The period '.' in generated anonymous names broke that assumption, causing a
build-time error and in practice forcing all records to be named.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197869 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 0 deletions

diff --git a/test/TableGen/ValidIdentifiers.td b/test/TableGen/ValidIdentifiers.td
new file mode 100644
index 0000000000..899ae0e386
--- /dev/null
+++ b/test/TableGen/ValidIdentifiers.td
@@ -0,0 +1,13 @@
+// Ensure that anonymous names are valid identifiers via the ctags index
+// RUN: llvm-tblgen -gen-ctags %s | grep -v '^!' | not grep -viE '^[a-z_][a-z0-9_]*\t'
+// Test validation
+// RUN: llvm-tblgen -gen-ctags %s | grep '^anonymous' > /dev/null
+// XFAIL: vg_leak
+
+class foo<int X> { int THEVAL = X; }
+
+def : foo<2>;
+
+def X {
+  foo Y = foo<1>;
+}