Don't crash on _Imaginary.

llvm-svn: 114637

clang/include/clang/Basic/DiagnosticSemaKinds.td

@@ -2303,6 +2303,8 @@ def error_no_subobject_property_setting : Error<
 def ext_freestanding_complex : Extension<
   "complex numbers are an extension in a freestanding C99 implementation">;
 
+// FIXME: Remove when we support imaginary.
+def err_imaginary_not_supported : Error<"imaginary types are not supported">;
 
 // Obj-c expressions
 def warn_root_inst_method_not_found : Warning<

clang/lib/Sema/SemaType.cpp

@@ -392,8 +392,9 @@ static QualType ConvertDeclSpecToType(Sema &TheSema,
     Result = Context.getVectorType(Result, 128/typeSize, AltiVecSpec);
   }
 
-  assert(DS.getTypeSpecComplex() != DeclSpec::TSC_imaginary &&
-         "FIXME: imaginary types not supported yet!");
+  // FIXME: Imaginary.
+  if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary)
+    TheSema.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported);
 
   // See if there are any attributes on the declspec that apply to the type (as
   // opposed to the decl).

clang/test/CodeGen/imaginary.c

@@ -0,0 +1,4 @@
+// RUN: %clang_cc1 -verify -emit-llvm-only %s
+
+// Just verify that we don't crash until we support _Imaginary.
+double _Imaginary foo; // expected-error {{imaginary types are not supported}}