; RUN: llvm-as < %s | opt -ipconstprop | llvm-dis | grep {ret i32 %r}
; Should not propagate the result of a weak function.
; PR2411

define weak i32 @foo() nounwind  {
entry:
        ret i32 1
}

define i32 @main() nounwind  {
entry:
        %r = call i32 @foo( ) nounwind
        ret i32 %r
}