; LLVM IR from VastoLorde95/Competitive-Programming :: SPOJ/Random/QTREE/qtree.ll (Z11update_treeiiiii)

; 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"

@s_tree = external dso_local global [20002 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: mustprogress uwtable
define dso_local void @_Z11update_treeiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #1 {
  %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 %6, align 4, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !5
  store i32 %4, ptr %10, align 4, !tbaa !5
  %14 = load i32, ptr %7, align 4, !tbaa !5
  %15 = load i32, ptr %9, align 4, !tbaa !5
  %16 = icmp sgt i32 %14, %15
  br i1 %16, label %21, label %17

17:                                               ; preds = %5
  %18 = load i32, ptr %8, align 4, !tbaa !5
  %19 = load i32, ptr %9, align 4, !tbaa !5
  %20 = icmp sle i32 %18, %19
  br i1 %20, label %21, label %22

21:                                               ; preds = %17, %5
  br label %79

22:                                               ; preds = %17
  %23 = load i32, ptr %7, align 4, !tbaa !5
  %24 = load i32, ptr %9, align 4, !tbaa !5
  %25 = icmp eq i32 %23, %24
  br i1 %25, label %26, label %36

26:                                               ; preds = %22
  %27 = load i32, ptr %7, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  %29 = load i32, ptr %8, align 4, !tbaa !5
  %30 = icmp eq i32 %28, %29
  br i1 %30, label %31, label %36

31:                                               ; preds = %26
  %32 = load i32, ptr %10, align 4, !tbaa !5
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %34
  store i32 %32, ptr %35, align 4, !tbaa !5
  br label %79

36:                                               ; preds = %26, %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = shl i32 %37, 1
  store i32 %38, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #2
  %39 = load i32, ptr %11, align 4, !tbaa !5
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #2
  %41 = load i32, ptr %7, align 4, !tbaa !5
  %42 = load i32, ptr %8, align 4, !tbaa !5
  %43 = add nsw i32 %41, %42
  %44 = ashr i32 %43, 1
  store i32 %44, ptr %13, align 4, !tbaa !5
  %45 = load i32, ptr %11, align 4, !tbaa !5
  %46 = load i32, ptr %7, align 4, !tbaa !5
  %47 = load i32, ptr %13, align 4, !tbaa !5
  %48 = load i32, ptr %9, align 4, !tbaa !5
  %49 = load i32, ptr %10, align 4, !tbaa !5
  call void @_Z11update_treeiiiii(i32 noundef %45, i32 noundef %46, i32 noundef %47, i32 noundef %48, i32 noundef %49)
  %50 = load i32, ptr %12, align 4, !tbaa !5
  %51 = load i32, ptr %13, align 4, !tbaa !5
  %52 = load i32, ptr %8, align 4, !tbaa !5
  %53 = load i32, ptr %9, align 4, !tbaa !5
  %54 = load i32, ptr %10, align 4, !tbaa !5
  call void @_Z11update_treeiiiii(i32 noundef %50, i32 noundef %51, i32 noundef %52, i32 noundef %53, i32 noundef %54)
  %55 = load i32, ptr %11, align 4, !tbaa !5
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %56
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = load i32, ptr %12, align 4, !tbaa !5
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %60
  %62 = load i32, ptr %61, align 4, !tbaa !5
  %63 = icmp sgt i32 %58, %62
  br i1 %63, label %64, label %69

64:                                               ; preds = %36
  %65 = load i32, ptr %11, align 4, !tbaa !5
  %66 = sext i32 %65 to i64
  %67 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %66
  %68 = load i32, ptr %67, align 4, !tbaa !5
  br label %74

69:                                               ; preds = %36
  %70 = load i32, ptr %12, align 4, !tbaa !5
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %71
  %73 = load i32, ptr %72, align 4, !tbaa !5
  br label %74

74:                                               ; preds = %69, %64
  %75 = phi i32 [ %68, %64 ], [ %73, %69 ]
  %76 = load i32, ptr %6, align 4, !tbaa !5
  %77 = sext i32 %76 to i64
  %78 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %77
  store i32 %75, ptr %78, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  br label %79

79:                                               ; preds = %74, %31, %21
  ret void
}

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 = { 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"

@s_tree = external dso_local local_unnamed_addr global [20002 x i32], align 16

; Function Attrs: mustprogress nofree nosync nounwind memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z11update_treeiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = icmp sle i32 %1, %3
  %.not = icmp sgt i32 %2, %3
  %or.cond = and i1 %6, %.not
  br i1 %or.cond, label %7, label %common.ret

7:                                                ; preds = %5
  %8 = icmp eq i32 %1, %3
  %9 = add nsw i32 %1, 1
  %10 = icmp eq i32 %9, %2
  %or.cond34 = select i1 %8, i1 %10, i1 false
  br i1 %or.cond34, label %common.ret.sink.split, label %13

common.ret.sink.split:                            ; preds = %7, %13
  %.sink = phi i32 [ %., %13 ], [ %4, %7 ]
  %11 = sext i32 %0 to i64
  %12 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %11
  store i32 %.sink, ptr %12, align 4, !tbaa !5
  br label %common.ret

common.ret:                                       ; preds = %common.ret.sink.split, %5
  ret void

13:                                               ; preds = %7
  %14 = shl i32 %0, 1
  %15 = or disjoint i32 %14, 1
  %16 = add nsw i32 %2, %1
  %17 = ashr i32 %16, 1
  tail call void @_Z11update_treeiiiii(i32 noundef %14, i32 noundef %1, i32 noundef %17, i32 noundef %3, i32 noundef %4)
  tail call void @_Z11update_treeiiiii(i32 noundef %15, i32 noundef %17, i32 noundef %2, i32 noundef %3, i32 noundef %4)
  %18 = sext i32 %14 to i64
  %19 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %18
  %20 = load i32, ptr %19, align 8, !tbaa !5
  %21 = sext i32 %15 to i64
  %22 = getelementptr inbounds [20002 x i32], ptr @s_tree, i64 0, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %. = tail call i32 @llvm.smax.i32(i32 %20, i32 %23)
  br label %common.ret.sink.split
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #1

attributes #0 = { mustprogress nofree nosync nounwind memory(readwrite, argmem: none, inaccessiblemem: none) 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass