; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep zext
; PR1107
define i1 @test(i8 %A, i8 %B) {
%a = zext i8 %A to i32
%b = zext i8 %B to i32
%c = icmp sgt i32 %a, %b
ret i1 %c
}