Index: Modules/_ctypes/libffi/src/sparc/v8.S
===================================================================
--- Modules/_ctypes/libffi/src/sparc/v8.S	(revision 79887)
+++ Modules/_ctypes/libffi/src/sparc/v8.S	(working copy)
@@ -213,6 +213,10 @@
 	be,a	done1
 	 ldd	[%fp-8], %i0
 
+	cmp	%o0, FFI_TYPE_UINT64
+	be,a	done1
+	 ldd	[%fp-8], %i0
+
 	ld	[%fp-8], %i0
 done1:
 	jmp	%i7+8