; LLVM IR from Aryansh-S/USACO :: other_impl/other-qry-ds (prefixsums)

; 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::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@n = external dso_local global i32, align 4
@q = external dso_local global i32, align 4
@dp = external dso_local global [100001 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %6 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %7 = getelementptr i8, ptr %6, i64 -24
  %8 = load i64, ptr %7, align 8
  %9 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %8
  %10 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %9, ptr noundef null)
  %11 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 4 dereferenceable(4) @q)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  %14 = load i32, ptr @n, align 4, !tbaa !8
  %15 = add nsw i32 %14, 1
  %16 = icmp sgt i32 1, %15
  %17 = zext i1 %16 to i32
  %18 = sub nsw i32 1, %17
  store i32 %18, ptr %2, align 4, !tbaa !8
  br label %19

19:                                               ; preds = %35, %0
  %20 = load i32, ptr %2, align 4, !tbaa !8
  %21 = load i32, ptr @n, align 4, !tbaa !8
  %22 = add nsw i32 %21, 1
  %23 = load i32, ptr @n, align 4, !tbaa !8
  %24 = add nsw i32 %23, 1
  %25 = icmp sgt i32 1, %24
  %26 = zext i1 %25 to i32
  %27 = sub nsw i32 %22, %26
  %28 = icmp ne i32 %20, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %43

30:                                               ; preds = %19
  %31 = load i32, ptr %2, align 4, !tbaa !8
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [100001 x i32], ptr @dp, i64 0, i64 %32
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %33)
  br label %35

35:                                               ; preds = %30
  %36 = load i32, ptr @n, align 4, !tbaa !8
  %37 = add nsw i32 %36, 1
  %38 = icmp sgt i32 1, %37
  %39 = zext i1 %38 to i64
  %40 = select i1 %38, i32 -1, i32 1
  %41 = load i32, ptr %2, align 4, !tbaa !8
  %42 = add nsw i32 %41, %40
  store i32 %42, ptr %2, align 4, !tbaa !8
  br label %19, !llvm.loop !11

43:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  %44 = load i32, ptr @q, align 4, !tbaa !8
  %45 = icmp sgt i32 0, %44
  %46 = zext i1 %45 to i32
  %47 = sub nsw i32 0, %46
  store i32 %47, ptr %3, align 4, !tbaa !8
  br label %48

48:                                               ; preds = %72, %43
  %49 = load i32, ptr %3, align 4, !tbaa !8
  %50 = load i32, ptr @q, align 4, !tbaa !8
  %51 = load i32, ptr @q, align 4, !tbaa !8
  %52 = icmp sgt i32 0, %51
  %53 = zext i1 %52 to i32
  %54 = sub nsw i32 %50, %53
  %55 = icmp ne i32 %49, %54
  br i1 %55, label %57, label %56

56:                                               ; preds = %48
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  br label %79

57:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  %58 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %59 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %58, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %60 = load i32, ptr %5, align 4, !tbaa !8
  %61 = sext i32 %60 to i64
  %62 = getelementptr inbounds [100001 x i32], ptr @dp, i64 0, i64 %61
  %63 = load i32, ptr %62, align 4, !tbaa !8
  %64 = load i32, ptr %4, align 4, !tbaa !8
  %65 = sub nsw i32 %64, 1
  %66 = sext i32 %65 to i64
  %67 = getelementptr inbounds [100001 x i32], ptr @dp, i64 0, i64 %66
  %68 = load i32, ptr %67, align 4, !tbaa !8
  %69 = sub nsw i32 %63, %68
  %70 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %69)
  %71 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %70, ptr noundef @.str)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %72

72:                                               ; preds = %57
  %73 = load i32, ptr @q, align 4, !tbaa !8
  %74 = icmp sgt i32 0, %73
  %75 = zext i1 %74 to i64
  %76 = select i1 %74, i32 -1, i32 1
  %77 = load i32, ptr %3, align 4, !tbaa !8
  %78 = add nsw i32 %77, %76
  store i32 %78, ptr %3, align 4, !tbaa !8
  br label %48, !llvm.loop !13

79:                                               ; preds = %56
  ret i32 0
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

attributes #0 = { mustprogress norecurse 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 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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { inlinehint 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 #5 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@n = external dso_local global i32, align 4
@q = external dso_local global i32, align 4
@dp = external dso_local global [100001 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %4 = getelementptr i8, ptr %3, i64 -24
  %5 = load i64, ptr %4, align 8
  %6 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %5
  %7 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %6, ptr noundef null)
  %8 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %9 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %10 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 4 dereferenceable(4) @q)
  %11 = load i32, ptr @n, align 4, !tbaa !8
  %isnotneg = icmp sgt i32 %11, -1
  %12 = zext i1 %isnotneg to i32
  %13 = add nsw i32 %11, 1
  %.lobit.neg10 = ashr i32 %11, 31
  %14 = add nsw i32 %13, %.lobit.neg10
  %.not11 = icmp eq i32 %14, %12
  br i1 %.not11, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %0
  %15 = load i32, ptr @q, align 4, !tbaa !8
  %.not814 = icmp eq i32 %15, 0
  br i1 %.not814, label %._crit_edge18, label %.lr.ph17.preheader

.lr.ph17.preheader:                               ; preds = %._crit_edge
  %.lobit.neg6 = ashr i32 %15, 31
  br label %.lr.ph17

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.0512 = phi i32 [ %21, %.lr.ph ], [ %12, %0 ]
  %16 = sext i32 %.0512 to i64
  %17 = getelementptr inbounds [100001 x i32], ptr @dp, i64 0, i64 %16
  %18 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %17)
  %19 = load i32, ptr @n, align 4, !tbaa !8
  %.inv9 = icmp sgt i32 %19, -1
  %20 = select i1 %.inv9, i32 1, i32 -1
  %21 = add nsw i32 %20, %.0512
  %22 = add nsw i32 %19, 1
  %.lobit.neg = ashr i32 %19, 31
  %23 = add nsw i32 %22, %.lobit.neg
  %.not = icmp eq i32 %21, %23
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

._crit_edge18:                                    ; preds = %.lr.ph17, %._crit_edge
  ret i32 0

.lr.ph17:                                         ; preds = %.lr.ph17.preheader, %.lr.ph17
  %.015 = phi i32 [ %40, %.lr.ph17 ], [ %.lobit.neg6, %.lr.ph17.preheader ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #5
  %24 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %24, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %26 = load i32, ptr %2, align 4, !tbaa !8
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [100001 x i32], ptr @dp, i64 0, i64 %27
  %29 = load i32, ptr %28, align 4, !tbaa !8
  %30 = load i32, ptr %1, align 4, !tbaa !8
  %31 = add nsw i32 %30, -1
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [100001 x i32], ptr @dp, i64 0, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !8
  %35 = sub nsw i32 %29, %34
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %35)
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %36, ptr noundef nonnull @.str)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  %38 = load i32, ptr @q, align 4, !tbaa !8
  %.inv = icmp sgt i32 %38, -1
  %39 = select i1 %.inv, i32 1, i32 -1
  %40 = add nsw i32 %39, %.015
  %.lobit.neg7 = ashr i32 %38, 31
  %41 = add i32 %.lobit.neg7, %38
  %.not8 = icmp eq i32 %40, %41
  br i1 %.not8, label %._crit_edge18, label %.lr.ph17, !llvm.loop !13
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress norecurse 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 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 = { "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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { inlinehint 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 #5 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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