; LLVM IR from fast-pack/FastPFOR :: src/benchbitpacking.ll (ZN11FastPForLib13generateArrayEjj)

; 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.FastPForLib::AlignedSTLAllocator" = type { i8 }

; 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11FastPForLib13generateArrayEjj(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, i32 noundef %1, i32 noundef %2) #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i1, align 1
  %8 = alloca %"class.FastPForLib::AlignedSTLAllocator", align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i64, align 8
  store ptr %0, ptr %4, align 8
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  store i1 false, ptr %7, align 1
  %12 = load i32, ptr %5, align 4, !tbaa !5
  %13 = zext i32 %12 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #4
  call void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8)
  invoke void @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %13, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %14 unwind label %21

14:                                               ; preds = %3
  call void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  store i64 0, ptr %11, align 8, !tbaa !9
  br label %15

15:                                               ; preds = %31, %14
  %16 = load i64, ptr %11, align 8, !tbaa !9
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = zext i32 %17 to i64
  %19 = icmp ult i64 %16, %18
  br i1 %19, label %25, label %20

20:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  br label %34

21:                                               ; preds = %3
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %9, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %10, align 4
  call void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #4
  br label %38

25:                                               ; preds = %15
  %26 = call i32 @rand() #4
  %27 = load i32, ptr %6, align 4, !tbaa !5
  %28 = and i32 %26, %27
  %29 = load i64, ptr %11, align 8, !tbaa !9
  %30 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %29) #4
  store i32 %28, ptr %30, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %25
  %32 = load i64, ptr %11, align 8, !tbaa !9
  %33 = add i64 %32, 1
  store i64 %33, ptr %11, align 8, !tbaa !9
  br label %15, !llvm.loop !11

34:                                               ; preds = %20
  store i1 true, ptr %7, align 1
  %35 = load i1, ptr %7, align 1
  br i1 %35, label %37, label %36

36:                                               ; preds = %34
  call void @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br label %37

37:                                               ; preds = %36, %34
  ret void

38:                                               ; preds = %21
  %39 = load ptr, ptr %9, align 8
  %40 = load i32, ptr %10, align 4
  %41 = insertvalue { ptr, i32 } poison, ptr %39, 0
  %42 = insertvalue { ptr, i32 } %41, i32 %40, 1
  resume { ptr, i32 } %42
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: nounwind
declare i32 @rand() #3

; 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) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #3 = { nounwind "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 = !{!"int", !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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, FastPForLib::AlignedSTLAllocator<unsigned int, 64>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.FastPForLib::AlignedSTLAllocator" = type { i8 }

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

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11FastPForLib13generateArrayEjj(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.FastPForLib::AlignedSTLAllocator", align 1
  %5 = zext i32 %1 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #4
  call void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4)
  invoke void @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %5, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %6 unwind label %7

6:                                                ; preds = %3
  call void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #4
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

7:                                                ; preds = %3
  %8 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #4
  resume { ptr, i32 } %8

.lr.ph:                                           ; preds = %6, %.lr.ph
  %.08 = phi i64 [ %12, %.lr.ph ], [ 0, %6 ]
  %9 = call i32 @rand() #4
  %10 = and i32 %9, %2
  %11 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %.08) #4
  store i32 %10, ptr %11, align 4, !tbaa !5
  %12 = add nuw nsw i64 %.08, 1
  %exitcond.not = icmp eq i64 %12, %5
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %6
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIjN11FastPForLib19AlignedSTLAllocatorIjLm64EEEEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: nounwind
declare i32 @rand() local_unnamed_addr #3

; 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11FastPForLib19AlignedSTLAllocatorIjLm64EED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #3 = { nounwind "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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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