Allow the parser to detect invalid DeclSpec's. This fixes http://llvm.org/bugs/show_bug.cgi?id=1987.
This commit only "guards" the call to ParseDeclarationSpecifiers() in ParseDeclarationOrFunctionDefinition().
We could consider guarding all calls, however this is a bit radical (since it effectively stops parsing the declaration once we have a bad declspec). Will discuss with Chris tomorrow.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46984 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Parse/Parser.cpp b/Parse/Parser.cpp
index e3208a0..860a44f 100644
--- a/Parse/Parser.cpp
+++ b/Parse/Parser.cpp
@@ -367,7 +367,10 @@
// Parse the common declaration-specifiers piece.
DeclSpec DS;
ParseDeclarationSpecifiers(DS);
-
+ // If the decl specs are invalid, there is no need to continue.
+ if (DS.isInvalid())
+ return 0;
+
// C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };"
// declaration-specifiers init-declarator-list[opt] ';'
if (Tok.is(tok::semi)) {