; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2019-20/Jan/Plat (nondec_divide)

; 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"

%struct.modular = type { i32 }

; 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 uwtable
define dso_local void @_Z2ADRSt5arrayI7modularIiELm20EEi(ptr noundef nonnull align 4 dereferenceable(80) %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca %struct.modular, align 4
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !11
  call void @_ZN7modularIiEC2ERKx(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 8 dereferenceable(8) %6)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %20, %2
  %9 = load i32, ptr %7, align 4, !tbaa !9
  %10 = load i32, ptr %4, align 4, !tbaa !9
  %11 = add nsw i32 %10, 1
  %12 = icmp slt i32 %9, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %23

14:                                               ; preds = %8
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = load i32, ptr %7, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayI7modularIiELm20EEixEm(ptr noundef nonnull align 4 dereferenceable(80) %15, i64 noundef %17) #3
  %19 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7modularIiEpLERKS0_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %18)
  br label %20

20:                                               ; preds = %14
  %21 = load i32, ptr %7, align 4, !tbaa !9
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %7, align 4, !tbaa !9
  br label %8, !llvm.loop !13

23:                                               ; preds = %13
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = load i32, ptr %4, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayI7modularIiELm20EEixEm(ptr noundef nonnull align 4 dereferenceable(80) %24, i64 noundef %26) #3
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7modularIiEpLERKS0_(ptr noundef nonnull align 4 dereferenceable(4) %27, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7modularIiEC2ERKx(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayI7modularIiELm20EEixEm(ptr noundef nonnull align 4 dereferenceable(80), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN7modularIiEpLERKS0_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #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 }

!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 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"

%struct.modular = type { i32 }

; 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

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z2ADRSt5arrayI7modularIiELm20EEi(ptr noundef nonnull align 4 dereferenceable(80) %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = alloca %struct.modular, align 4
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #2
  store i64 0, ptr %4, align 8, !tbaa !5
  call void @_ZN7modularIiEC2ERKx(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #2
  %.not6 = icmp slt i32 %1, 0
  br i1 %.not6, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %5 = add nuw i32 %1, 1
  %wide.trip.count = zext i32 %5 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %2
  %6 = sext i32 %1 to i64
  %7 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayI7modularIiELm20EEixEm(ptr noundef nonnull align 4 dereferenceable(80) %0, i64 noundef %6) #2
  %8 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7modularIiEpLERKS0_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #2
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %9 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayI7modularIiELm20EEixEm(ptr noundef nonnull align 4 dereferenceable(80) %0, i64 noundef %indvars.iv) #2
  %10 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7modularIiEpLERKS0_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %9)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7modularIiEC2ERKx(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayI7modularIiELm20EEixEm(ptr noundef nonnull align 4 dereferenceable(80), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN7modularIiEpLERKS0_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { 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 = !{!"long 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,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass