; RUN: opt -loop-vectorize -S %s target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" define void @f(i128 %p1) { entry: br label %while.body while.body: %p.05 = phi i8* [ %add.ptr, %while.body ], [ null, %entry ] %p1.addr.04 = phi i128 [ %sub, %while.body ], [ %p1, %entry ] %add.ptr = getelementptr inbounds i8, i8* %p.05, i32 2 %sub = add nsw i128 %p1.addr.04, -2 %tobool = icmp eq i128 %sub, 0 br i1 %tobool, label %while.end, label %while.body while.end: ret void }