text: ; RUN: opt -loop-idiom < %s -S | FileCheck %s
  ; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop(loop-idiom)' < %s -S | FileCheck %s
  target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
  target triple = "x86_64-unknown-linux-gnu"
  
  %struct.bigBlock_t = type { [256 x <4 x float>] }
  
  ; CHECK-LABEL: @test(
  ; CHECK-NOT: llvm.memset
  define void @test(%struct.bigBlock_t* %p) {
  entry:
    %0 = getelementptr inbounds %struct.bigBlock_t, %struct.bigBlock_t* %p, i64 0, i32 0, i64 0, i64 0
    br label %for.body
  
  for.body:                                         ; preds = %entry, %for.body
    %index.02 = phi i32 [ 0, %entry ], [ %add, %for.body ]
    %dst.01 = phi float* [ %0, %entry ], [ %add.ptr2, %for.body ]
    %cast.i5 = bitcast float* %dst.01 to <4 x float>*
    store <4 x float> zeroinitializer, <4 x float>* %cast.i5, align 16, !nontemporal !0
    %add.ptr1 = getelementptr inbounds float, float* %dst.01, i64 4
    %cast.i = bitcast float* %add.ptr1 to <4 x float>*
    store <4 x float> zeroinitializer, <4 x float>* %cast.i, align 16, !nontemporal !0
    %add.ptr2 = getelementptr inbounds float, float* %dst.01, i64 8
    %add = add nuw nsw i32 %index.02, 32
    %cmp = icmp ult i32 %add, 4096
    br i1 %cmp, label %for.body, label %for.end
  
  for.end:                                          ; preds = %for.body
    ret void
  }
  
  !0 = !{i32 1}
  