Provide an extremely unsatisfactory diagnostic (instead of crashing) when
mangling an unknown expression kind. Also conveniently tells the user what
kind of expression they should add to the mangler!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100907 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index 649e848..b052f86 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -1279,10 +1279,24 @@
// ::= L <type <value float> E # floating literal
// ::= L <mangled-name> E # external name
switch (E->getStmtClass()) {
- default:
+ case Expr::NoStmtClass:
+#define EXPR(Type, Base)
+#define STMT(Type, Base) \
+ case Expr::Type##Class:
+#include "clang/AST/StmtNodes.def"
llvm_unreachable("unexpected statement kind");
break;
+ default: {
+ // As bad as this diagnostic is, it's better than crashing.
+ Diagnostic &Diags = Context.getDiags();
+ unsigned DiagID = Diags.getCustomDiagID(Diagnostic::Error,
+ "cannot yet mangle expression type %0");
+ Diags.Report(FullSourceLoc(), DiagID)
+ << E->getStmtClassName();
+ break;
+ }
+
case Expr::CallExprClass: {
const CallExpr *CE = cast<CallExpr>(E);
Out << "cl";