[fast-isel] Add support for returning non-legal types with no sign- or zero-

entend flag.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150774 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/ARM/fast-isel-ret.ll

@@ -46,3 +46,12 @@ entry:
 ; CHECK: bx lr
   ret i16 %a
 }
+
+define i16 @ret6(i16 %a) nounwind uwtable ssp {
+entry:
+; CHECK: ret6
+; CHECK-NOT: uxth
+; CHECK-NOT: sxth
+; CHECK: bx lr
+  ret i16 %a
+}