; LLVM IR from Izaron/ACM-ICPC :: Timus Online Judge/Volume 8/1724. Origin of Man Clarified.ll (Z6ansGetiiiiii)

; 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"

@ansTree = external dso_local global [400020 x [4 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 @_Z6ansGetiiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4, i32 noundef %5) #2 {
  %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
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  store i32 %0, ptr %8, align 4, !tbaa !5
  store i32 %1, ptr %9, align 4, !tbaa !5
  store i32 %2, ptr %10, align 4, !tbaa !5
  store i32 %3, ptr %11, align 4, !tbaa !5
  store i32 %4, ptr %12, align 4, !tbaa !5
  store i32 %5, ptr %13, align 4, !tbaa !5
  %16 = load i32, ptr %10, align 4, !tbaa !5
  %17 = load i32, ptr %12, align 4, !tbaa !5
  %18 = icmp slt i32 %16, %17
  br i1 %18, label %23, label %19

19:                                               ; preds = %6
  %20 = load i32, ptr %13, align 4, !tbaa !5
  %21 = load i32, ptr %9, align 4, !tbaa !5
  %22 = icmp slt i32 %20, %21
  br i1 %22, label %23, label %24

23:                                               ; preds = %19, %6
  store i32 1000000000, ptr %7, align 4
  br label %67

24:                                               ; preds = %19
  %25 = load i32, ptr %9, align 4, !tbaa !5
  %26 = load i32, ptr %12, align 4, !tbaa !5
  %27 = icmp sge i32 %25, %26
  br i1 %27, label %28, label %40

28:                                               ; preds = %24
  %29 = load i32, ptr %10, align 4, !tbaa !5
  %30 = load i32, ptr %13, align 4, !tbaa !5
  %31 = icmp sle i32 %29, %30
  br i1 %31, label %32, label %40

32:                                               ; preds = %28
  %33 = load i32, ptr %8, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [400020 x [4 x i32]], ptr @ansTree, i64 0, i64 %34
  %36 = load i32, ptr %11, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [4 x i32], ptr %35, i64 0, i64 %37
  %39 = load i32, ptr %38, align 4, !tbaa !5
  store i32 %39, ptr %7, align 4
  br label %67

40:                                               ; preds = %28, %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %41 = load i32, ptr %8, align 4, !tbaa !5
  %42 = mul nsw i32 %41, 2
  %43 = load i32, ptr %9, align 4, !tbaa !5
  %44 = load i32, ptr %9, align 4, !tbaa !5
  %45 = load i32, ptr %10, align 4, !tbaa !5
  %46 = add nsw i32 %44, %45
  %47 = sdiv i32 %46, 2
  %48 = load i32, ptr %11, align 4, !tbaa !5
  %49 = load i32, ptr %12, align 4, !tbaa !5
  %50 = load i32, ptr %13, align 4, !tbaa !5
  %51 = call noundef i32 @_Z6ansGetiiiiii(i32 noundef %42, i32 noundef %43, i32 noundef %47, i32 noundef %48, i32 noundef %49, i32 noundef %50)
  store i32 %51, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #3
  %52 = load i32, ptr %8, align 4, !tbaa !5
  %53 = mul nsw i32 %52, 2
  %54 = add nsw i32 %53, 1
  %55 = load i32, ptr %9, align 4, !tbaa !5
  %56 = load i32, ptr %10, align 4, !tbaa !5
  %57 = add nsw i32 %55, %56
  %58 = sdiv i32 %57, 2
  %59 = add nsw i32 %58, 1
  %60 = load i32, ptr %10, align 4, !tbaa !5
  %61 = load i32, ptr %11, align 4, !tbaa !5
  %62 = load i32, ptr %12, align 4, !tbaa !5
  %63 = load i32, ptr %13, align 4, !tbaa !5
  %64 = call noundef i32 @_Z6ansGetiiiiii(i32 noundef %54, i32 noundef %59, i32 noundef %60, i32 noundef %61, i32 noundef %62, i32 noundef %63)
  store i32 %64, ptr %15, align 4, !tbaa !5
  %65 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %14, ptr noundef nonnull align 4 dereferenceable(4) %15)
  %66 = load i32, ptr %65, align 4, !tbaa !5
  store i32 %66, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  br label %67

67:                                               ; preds = %40, %32, %23
  %68 = load i32, ptr %7, align 4
  ret i32 %68
}

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"

@ansTree = external dso_local local_unnamed_addr global [400020 x [4 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 @_Z6ansGetiiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4, i32 noundef %5) local_unnamed_addr #2 {
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = icmp slt i32 %2, %4
  %10 = icmp slt i32 %5, %1
  %or.cond = or i1 %9, %10
  br i1 %or.cond, label %common.ret31, label %11

11:                                               ; preds = %6
  %.not = icmp slt i32 %1, %4
  %.not29 = icmp sgt i32 %2, %5
  %or.cond30 = or i1 %.not, %.not29
  br i1 %or.cond30, label %17, label %12

12:                                               ; preds = %11
  %13 = sext i32 %0 to i64
  %14 = sext i32 %3 to i64
  %15 = getelementptr inbounds [400020 x [4 x i32]], ptr @ansTree, i64 0, i64 %13, i64 %14
  %16 = load i32, ptr %15, align 4, !tbaa !5
  br label %common.ret31

common.ret31:                                     ; preds = %6, %12, %17
  %common.ret31.op = phi i32 [ %26, %17 ], [ %16, %12 ], [ 1000000000, %6 ]
  ret i32 %common.ret31.op

17:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #3
  %18 = shl nsw i32 %0, 1
  %19 = add nsw i32 %2, %1
  %20 = sdiv i32 %19, 2
  %21 = tail call noundef i32 @_Z6ansGetiiiiii(i32 noundef %18, i32 noundef %1, i32 noundef %20, i32 noundef %3, i32 noundef %4, i32 noundef %5)
  store i32 %21, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #3
  %22 = or disjoint i32 %18, 1
  %23 = add nsw i32 %20, 1
  %24 = tail call noundef i32 @_Z6ansGetiiiiii(i32 noundef %22, i32 noundef %23, i32 noundef %2, i32 noundef %3, i32 noundef %4, i32 noundef %5)
  store i32 %24, ptr %8, align 4, !tbaa !5
  %25 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %26 = load i32, ptr %25, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #3
  br label %common.ret31
}

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