define i32 @f(i32 %a) nounwind readnone optsize ssp {
entry:
%conv = zext i32 %a to i64
- %tmp1 = tail call i64 @llvm.ctlz.i64(i64 %conv)
+ %tmp1 = tail call i64 @llvm.ctlz.i64(i64 %conv, i1 true)
; CHECK: clz
; CHECK-NOT: adds
%cast = trunc i64 %tmp1 to i32
ret i32 %sub
}
-declare i64 @llvm.ctlz.i64(i64) nounwind readnone
+declare i64 @llvm.ctlz.i64(i64, i1) nounwind readnone