1 ; RUN: opt -loop-idiom < %s -S | FileCheck %s 2 ; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(loop-idiom)' < %s -S | FileCheck %s 3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 %struct.bigBlock_t = type { [256 x <4 x float>] } 7 8 ; CHECK-LABEL: @test( 9 ; CHECK-NOT: llvm.memset 10 define void @test(%struct.bigBlock_t* %p) { 11 entry: 12 %0 = getelementptr inbounds %struct.bigBlock_t, %struct.bigBlock_t* %p, i64 0, i32 0, i64 0, i64 0 13 br label %for.body 14 15 for.body: ; preds = %entry, %for.body 16 %index.02 = phi i32 [ 0, %entry ], [ %add, %for.body ] 17 %dst.01 = phi float* [ %0, %entry ], [ %add.ptr2, %for.body ] 18 %cast.i5 = bitcast float* %dst.01 to <4 x float>* 19 store <4 x float> zeroinitializer, <4 x float>* %cast.i5, align 16, !nontemporal !0 20 %add.ptr1 = getelementptr inbounds float, float* %dst.01, i64 4 21 %cast.i = bitcast float* %add.ptr1 to <4 x float>* 22 store <4 x float> zeroinitializer, <4 x float>* %cast.i, align 16, !nontemporal !0 23 %add.ptr2 = getelementptr inbounds float, float* %dst.01, i64 8 24 %add = add nuw nsw i32 %index.02, 32 25 %cmp = icmp ult i32 %add, 4096 26 br i1 %cmp, label %for.body, label %for.end 27 28 for.end: ; preds = %for.body 29 ret void 30 } 31 32 !0 = !{i32 1} 33
