Enable basic testing of __builtin_fpclassify.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105937 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/builtins.c b/test/CodeGen/builtins.c
index 2355fb4..40f7724 100644
--- a/test/CodeGen/builtins.c
+++ b/test/CodeGen/builtins.c
@@ -39,9 +39,10 @@
   Q(inff, ());
   Q(infl, ());
 
+  P(fpclassify, (0, 1, 2, 3, 4, 1.0));
+  P(fpclassify, (0, 1, 2, 3, 4, 1.0f));
+  P(fpclassify, (0, 1, 2, 3, 4, 1.0l));
   // FIXME:
-  // XXX note funny semantics for the (last) argument
-  //  P(fpclassify, (FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, 1.0));
   //  P(isinf_sign, (1.0));
 
   Q(nan, (""));