Disallow multiple instances of PluginPriority.

Several instances of PluginPriority in a single file most probably signifies a
programming error.

llvm-svn: 84350

1 files changed, 10 insertions, 0 deletions

diff --git a/llvm/test/LLVMC/MultiplePluginPriorities.td b/llvm/test/LLVMC/MultiplePluginPriorities.td
new file mode 100644
index 00000000000..721b7ccd0d2
--- /dev/null
+++ b/llvm/test/LLVMC/MultiplePluginPriorities.td
@@ -0,0 +1,10 @@
+// Check that multiple plugin priorities are not allowed.
+// RUN: ignore tblgen -I %p/../../include --gen-llvmc %s |& grep "More than one 'PluginPriority' instance found"
+
+include "llvm/CompilerDriver/Common.td"
+
+def Graph : CompilationGraph<[]>;
+
+def Priority1 : PluginPriority<1>;
+
+def Priority2 : PluginPriority<2>;