Check in LLVM r95781.
diff --git a/test/Feature/float.ll b/test/Feature/float.ll
new file mode 100644
index 0000000..6c6c5dd
--- /dev/null
+++ b/test/Feature/float.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llvm-dis > %t1.ll
+; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
+; RUN: diff %t1.ll %t2.ll
+
+@F1     = global float 0x4010000000000000
+@D1     = global double 0x4010000000000000