1 files changed, 5 insertions, 0 deletions
diff --git a/soft-fp/unorddf2.c b/soft-fp/unorddf2.c
index 2e77f2d8ff..bc4efa30b0 100644
--- a/soft-fp/unorddf2.c
+++ b/soft-fp/unorddf2.c
@@ -32,12 +32,17 @@
 
 CMPtype __unorddf2(DFtype a, DFtype b)
 {
+  FP_DECL_EX;
   FP_DECL_D(A); FP_DECL_D(B);
   CMPtype r;
 
+  FP_INIT_EXCEPTIONS;
   FP_UNPACK_RAW_D(A, a);
   FP_UNPACK_RAW_D(B, b);
   FP_CMP_UNORD_D(r, A, B);
+  if (r && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B)))
+    FP_SET_EXCEPTION(FP_EX_INVALID);
+  FP_HANDLE_EXCEPTIONS;
 
   return r;
 }