basic support for -Wunknown-pragmas, more coming.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69547 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/Pragma.cpp b/lib/Lex/Pragma.cpp
index 6bef2c8..6cea5fb 100644
--- a/lib/Lex/Pragma.cpp
+++ b/lib/Lex/Pragma.cpp
@@ -70,7 +70,10 @@
// Get the handler for this token. If there is no handler, ignore the pragma.
PragmaHandler *Handler = FindHandler(Tok.getIdentifierInfo(), false);
- if (Handler == 0) return;
+ if (Handler == 0) {
+ PP.Diag(Tok, diag::warn_pragma_ignored);
+ return;
+ }
// Otherwise, pass it down.
Handler->HandlePragma(PP, Tok);