; LLVM IR from turi-code/SFrame :: oss_test/fileio/fstream_bench.ll (Z4copyPVcPc)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z4copyPVcPc(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %8, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %9, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %22, %2
  %11 = load i64, ptr %7, align 8, !tbaa !9
  %12 = icmp ult i64 %11, 128
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  br label %25

14:                                               ; preds = %10
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = load i64, ptr %7, align 8, !tbaa !9
  %17 = getelementptr inbounds i64, ptr %15, i64 %16
  %18 = load i64, ptr %17, align 8, !tbaa !9
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i64, ptr %7, align 8, !tbaa !9
  %21 = getelementptr inbounds i64, ptr %19, i64 %20
  store volatile i64 %18, ptr %21, align 8, !tbaa !9
  br label %22

22:                                               ; preds = %14
  %23 = load i64, ptr %7, align 8, !tbaa !9
  %24 = add i64 %23, 1
  store i64 %24, ptr %7, align 8, !tbaa !9
  br label %10, !llvm.loop !11

25:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress nofree norecurse nounwind memory(argmem: readwrite, inaccessiblemem: readwrite) uwtable
define dso_local void @_Z4copyPVcPc(ptr noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  br label %4

3:                                                ; preds = %4
  ret void

4:                                                ; preds = %4, %2
  %.07 = phi i64 [ 0, %2 ], [ %20, %4 ]
  %5 = getelementptr inbounds i64, ptr %1, i64 %.07
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i64, ptr %0, i64 %.07
  store volatile i64 %6, ptr %7, align 8, !tbaa !5
  %8 = or disjoint i64 %.07, 1
  %9 = getelementptr inbounds i64, ptr %1, i64 %8
  %10 = load i64, ptr %9, align 8, !tbaa !5
  %11 = getelementptr inbounds i64, ptr %0, i64 %8
  store volatile i64 %10, ptr %11, align 8, !tbaa !5
  %12 = or disjoint i64 %.07, 2
  %13 = getelementptr inbounds i64, ptr %1, i64 %12
  %14 = load i64, ptr %13, align 8, !tbaa !5
  %15 = getelementptr inbounds i64, ptr %0, i64 %12
  store volatile i64 %14, ptr %15, align 8, !tbaa !5
  %16 = or disjoint i64 %.07, 3
  %17 = getelementptr inbounds i64, ptr %1, i64 %16
  %18 = load i64, ptr %17, align 8, !tbaa !5
  %19 = getelementptr inbounds i64, ptr %0, i64 %16
  store volatile i64 %18, ptr %19, align 8, !tbaa !5
  %20 = add nuw nsw i64 %.07, 4
  %exitcond.not.3 = icmp eq i64 %20, 128
  br i1 %exitcond.not.3, label %3, label %4, !llvm.loop !9
}

attributes #0 = { mustprogress nofree norecurse nounwind memory(argmem: readwrite, inaccessiblemem: readwrite) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass