; LLVM IR from Izaron/ACM-ICPC :: Timus Online Judge/Volume 8/1724. Origin of Man Clarified.ll (Z6lstGetiiiii)

; 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"

@lstTree = external dso_local global [400020 x i32], align 16

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z6lstGetiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #2 {
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store i32 %0, ptr %7, align 4, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !5
  store i32 %2, ptr %9, align 4, !tbaa !5
  store i32 %3, ptr %10, align 4, !tbaa !5
  store i32 %4, ptr %11, align 4, !tbaa !5
  %14 = load i32, ptr %11, align 4, !tbaa !5
  %15 = load i32, ptr %8, align 4, !tbaa !5
  %16 = icmp slt i32 %14, %15
  br i1 %16, label %21, label %17

17:                                               ; preds = %5
  %18 = load i32, ptr %9, align 4, !tbaa !5
  %19 = load i32, ptr %10, align 4, !tbaa !5
  %20 = icmp slt i32 %18, %19
  br i1 %20, label %21, label %22

21:                                               ; preds = %17, %5
  store i32 1000000000, ptr %6, align 4
  br label %60

22:                                               ; preds = %17
  %23 = load i32, ptr %8, align 4, !tbaa !5
  %24 = load i32, ptr %10, align 4, !tbaa !5
  %25 = icmp sge i32 %23, %24
  br i1 %25, label %26, label %35

26:                                               ; preds = %22
  %27 = load i32, ptr %9, align 4, !tbaa !5
  %28 = load i32, ptr %11, align 4, !tbaa !5
  %29 = icmp sle i32 %27, %28
  br i1 %29, label %30, label %35

30:                                               ; preds = %26
  %31 = load i32, ptr %7, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [400020 x i32], ptr @lstTree, i64 0, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !5
  store i32 %34, ptr %6, align 4
  br label %60

35:                                               ; preds = %26, %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %36 = load i32, ptr %7, align 4, !tbaa !5
  %37 = mul nsw i32 %36, 2
  %38 = load i32, ptr %8, align 4, !tbaa !5
  %39 = load i32, ptr %8, align 4, !tbaa !5
  %40 = load i32, ptr %9, align 4, !tbaa !5
  %41 = add nsw i32 %39, %40
  %42 = sdiv i32 %41, 2
  %43 = load i32, ptr %10, align 4, !tbaa !5
  %44 = load i32, ptr %11, align 4, !tbaa !5
  %45 = call noundef i32 @_Z6lstGetiiiii(i32 noundef %37, i32 noundef %38, i32 noundef %42, i32 noundef %43, i32 noundef %44)
  store i32 %45, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %46 = load i32, ptr %7, align 4, !tbaa !5
  %47 = mul nsw i32 %46, 2
  %48 = add nsw i32 %47, 1
  %49 = load i32, ptr %8, align 4, !tbaa !5
  %50 = load i32, ptr %9, align 4, !tbaa !5
  %51 = add nsw i32 %49, %50
  %52 = sdiv i32 %51, 2
  %53 = add nsw i32 %52, 1
  %54 = load i32, ptr %9, align 4, !tbaa !5
  %55 = load i32, ptr %10, align 4, !tbaa !5
  %56 = load i32, ptr %11, align 4, !tbaa !5
  %57 = call noundef i32 @_Z6lstGetiiiii(i32 noundef %48, i32 noundef %53, i32 noundef %54, i32 noundef %55, i32 noundef %56)
  store i32 %57, ptr %13, align 4, !tbaa !5
  %58 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %12, ptr noundef nonnull align 4 dereferenceable(4) %13)
  %59 = load i32, ptr %58, align 4, !tbaa !5
  store i32 %59, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %60

60:                                               ; preds = %35, %30, %21
  %61 = load i32, ptr %6, align 4
  ret i32 %61
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 = { 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"}


; 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"

@lstTree = external dso_local local_unnamed_addr global [400020 x i32], align 16

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z6lstGetiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #2 {
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = icmp slt i32 %4, %1
  %9 = icmp slt i32 %2, %3
  %or.cond = or i1 %9, %8
  br i1 %or.cond, label %common.ret28, label %10

10:                                               ; preds = %5
  %.not = icmp slt i32 %1, %3
  %.not26 = icmp sgt i32 %2, %4
  %or.cond27 = or i1 %.not, %.not26
  br i1 %or.cond27, label %15, label %11

11:                                               ; preds = %10
  %12 = sext i32 %0 to i64
  %13 = getelementptr inbounds [400020 x i32], ptr @lstTree, i64 0, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !5
  br label %common.ret28

common.ret28:                                     ; preds = %5, %11, %15
  %common.ret28.op = phi i32 [ %24, %15 ], [ %14, %11 ], [ 1000000000, %5 ]
  ret i32 %common.ret28.op

15:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #3
  %16 = shl nsw i32 %0, 1
  %17 = add nsw i32 %2, %1
  %18 = sdiv i32 %17, 2
  %19 = tail call noundef i32 @_Z6lstGetiiiii(i32 noundef %16, i32 noundef %1, i32 noundef %18, i32 noundef %3, i32 noundef %4)
  store i32 %19, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #3
  %20 = or disjoint i32 %16, 1
  %21 = add nsw i32 %18, 1
  %22 = tail call noundef i32 @_Z6lstGetiiiii(i32 noundef %20, i32 noundef %21, i32 noundef %2, i32 noundef %3, i32 noundef %4)
  store i32 %22, ptr %7, align 4, !tbaa !5
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %24 = load i32, ptr %23, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  br label %common.ret28
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass