; LLVM IR from fast-pack/FastPFOR :: src (benchbitpacking)

; 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10simdunpackRKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEERS3_j(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = call noundef i64 @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #4
  store i64 %10, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i64 0, ptr %8, align 8, !tbaa !11
  br label %11

11:                                               ; preds = %32, %3
  %12 = load i64, ptr %8, align 8, !tbaa !11
  %13 = load i64, ptr %7, align 8, !tbaa !11
  %14 = udiv i64 %13, 128
  %15 = icmp ult i64 %12, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %35

17:                                               ; preds = %11
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %18, i64 noundef 0) #4
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = mul i32 4, %20
  %22 = zext i32 %21 to i64
  %23 = load i64, ptr %8, align 8, !tbaa !11
  %24 = mul i64 %22, %23
  %25 = getelementptr inbounds i32, ptr %19, i64 %24
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %26, i64 noundef 0) #4
  %28 = load i64, ptr %8, align 8, !tbaa !11
  %29 = mul i64 128, %28
  %30 = getelementptr inbounds i32, ptr %27, i64 %29
  %31 = load i32, ptr %6, align 4, !tbaa !9
  call void @_ZN11FastPForLib18SIMD_fastunpack_32EPKDv2_xPjj(ptr noundef %25, ptr noundef %30, i32 noundef %31)
  br label %32

32:                                               ; preds = %17
  %33 = load i64, ptr %8, align 8, !tbaa !11
  %34 = add i64 %33, 1
  store i64 %34, ptr %8, align 8, !tbaa !11
  br label %11, !llvm.loop !13

35:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret void
}

declare void @_ZN11FastPForLib18SIMD_fastunpack_32EPKDv2_xPjj(ptr noundef, ptr noundef, i32 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress 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 #3 = { "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 #4 = { 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 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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 nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10simdunpackRKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEERS3_j(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = tail call noundef i64 @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #3
  %5 = lshr i64 %4, 7
  %.not = icmp ult i64 %4, 128
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3
  %6 = shl i32 %2, 2
  %7 = zext i32 %6 to i64
  br label %8

._crit_edge:                                      ; preds = %8, %3
  ret void

8:                                                ; preds = %.lr.ph, %8
  %.09 = phi i64 [ 0, %.lr.ph ], [ %14, %8 ]
  %9 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #3
  %10 = mul i64 %.09, %7
  %11 = getelementptr inbounds i32, ptr %9, i64 %10
  %12 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef 0) #3
  %.idx = shl i64 %.09, 9
  %13 = getelementptr inbounds i8, ptr %12, i64 %.idx
  tail call void @_ZN11FastPForLib18SIMD_fastunpack_32EPKDv2_xPjj(ptr noundef nonnull %11, ptr noundef nonnull %13, i32 noundef %2)
  %14 = add nuw nsw i64 %.09, 1
  %exitcond.not = icmp eq i64 %14, %5
  br i1 %exitcond.not, label %._crit_edge, label %8, !llvm.loop !5
}

declare void @_ZN11FastPForLib18SIMD_fastunpack_32EPKDv2_xPjj(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

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 = { mustprogress 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 #2 = { "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 #3 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass