test/CodeGen/Thumb2/thumb2-clz.ll

; RUN: llc < %s -march=thumb -mattr=+thumb2,+v7a | grep "clz " | count 1

define i32 @f1(i32 %a) {
    %tmp = tail call i32 @llvm.ctlz.i32(i32 %a)
    ret i32 %tmp
}

declare i32 @llvm.ctlz.i32(i32) nounwind readnone