| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s | 
 |  | 
 | define i32 @foo(i64* nocapture %perm, i32 %n) { | 
 | entry: | 
 |   br label %body | 
 |  | 
 | body: | 
 | ; CHECK-LABEL: foo: | 
 | ; CHECK: pslldq  $8, %xmm0 | 
 |   %vec.ind = phi <2 x i64> [ <i64 0, i64 1>, %entry ], [ <i64 2, i64 3>, %body ] | 
 |   %l13 = extractelement <2 x i64> %vec.ind, i32 %n | 
 |   %l14 = getelementptr inbounds i64, i64* %perm, i64 %l13 | 
 |   %l15 = bitcast i64* %l14 to <2 x i64>* | 
 |   store <2 x i64> %vec.ind, <2 x i64>* %l15, align 8 | 
 |   %niter.ncmp.3 = icmp eq i64 %l13, 0 | 
 |   br i1 %niter.ncmp.3, label %exit, label %body | 
 |  | 
 | exit: | 
 |   ret i32 %n | 
 |  | 
 | } | 
 |  |