; PR 1258
; RUN: not llvm-as < %s >/dev/null 2> %t
; RUN: grep "'%0' defined with type 'i1'" %t
define i32 @test1(i32 %a, i32 %b) {
entry:
icmp eq i32 %b, %a ; <i1>:0 [#uses=1]
zext i1 %0 to i32 ; <i32>:0 [#uses=1]
ret i32 %0 ; Invalid Type for %0
}