; LLVM IR from VastoLorde95/Competitive-Programming :: CodeChef/SHORT/COOK65/Problem E/brute.ll (Z5buildiii)

; 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.node = type { i32, i32, i32 }

@st = external dso_local global [400040 x %struct.node], align 16
@_ZL8leaf_val = external hidden global [100010 x i32], align 16
@_ZL1P = external hidden global i32, align 4

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5mergei(i32 noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = load i32, ptr %5, align 4, !tbaa !5
  %10 = icmp eq i32 %8, %9
  br i1 %10, label %11, label %35

11:                                               ; preds = %3
  %12 = load i32, ptr %4, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [100010 x i32], ptr @_ZL8leaf_val, i64 0, i64 %13
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = load i32, ptr %6, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %17
  %19 = getelementptr inbounds %struct.node, ptr %18, i32 0, i32 0
  store i32 %15, ptr %19, align 4, !tbaa !9
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %21
  %23 = getelementptr inbounds %struct.node, ptr %22, i32 0, i32 2
  store i32 0, ptr %23, align 4, !tbaa !11
  %24 = load i32, ptr %4, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [100010 x i32], ptr @_ZL8leaf_val, i64 0, i64 %25
  %27 = load i32, ptr %26, align 4, !tbaa !5
  %28 = load i32, ptr @_ZL1P, align 4, !tbaa !5
  %29 = icmp slt i32 %27, %28
  %30 = zext i1 %29 to i32
  %31 = load i32, ptr %6, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %32
  %34 = getelementptr inbounds %struct.node, ptr %33, i32 0, i32 1
  store i32 %30, ptr %34, align 4, !tbaa !12
  br label %55

35:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %36 = load i32, ptr %4, align 4, !tbaa !5
  %37 = load i32, ptr %5, align 4, !tbaa !5
  %38 = add nsw i32 %36, %37
  %39 = ashr i32 %38, 1
  store i32 %39, ptr %7, align 4, !tbaa !5
  %40 = load i32, ptr %6, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %41
  %43 = getelementptr inbounds %struct.node, ptr %42, i32 0, i32 2
  store i32 0, ptr %43, align 4, !tbaa !11
  %44 = load i32, ptr %4, align 4, !tbaa !5
  %45 = load i32, ptr %7, align 4, !tbaa !5
  %46 = load i32, ptr %6, align 4, !tbaa !5
  %47 = mul nsw i32 2, %46
  call void @_Z5buildiii(i32 noundef %44, i32 noundef %45, i32 noundef %47)
  %48 = load i32, ptr %7, align 4, !tbaa !5
  %49 = add nsw i32 %48, 1
  %50 = load i32, ptr %5, align 4, !tbaa !5
  %51 = load i32, ptr %6, align 4, !tbaa !5
  %52 = mul nsw i32 2, %51
  %53 = add nsw i32 %52, 1
  call void @_Z5buildiii(i32 noundef %49, i32 noundef %50, i32 noundef %53)
  %54 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z5mergei(i32 noundef %54)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  br label %55

55:                                               ; preds = %35, %11
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS4node", !6, i64 0, !6, i64 4, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{!10, !6, i64 4}


; 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.node = type { i32, i32, i32 }

@st = external dso_local local_unnamed_addr global [400040 x %struct.node], align 16
@_ZL8leaf_val = external hidden local_unnamed_addr global [100010 x i32], align 16
@_ZL1P = external hidden local_unnamed_addr global i32, align 4

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5mergei(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i32 %0, %1
  br i1 %4, label %common.ret, label %15

common.ret:                                       ; preds = %3
  %5 = sext i32 %0 to i64
  %6 = getelementptr inbounds [100010 x i32], ptr @_ZL8leaf_val, i64 0, i64 %5
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = sext i32 %2 to i64
  %9 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %8
  store i32 %7, ptr %9, align 4, !tbaa !9
  %10 = getelementptr inbounds i8, ptr %9, i64 8
  store i32 0, ptr %10, align 4, !tbaa !11
  %11 = load i32, ptr @_ZL1P, align 4, !tbaa !5
  %12 = icmp slt i32 %7, %11
  %13 = zext i1 %12 to i32
  %14 = getelementptr inbounds i8, ptr %9, i64 4
  store i32 %13, ptr %14, align 4, !tbaa !12
  br label %common.ret18

common.ret18:                                     ; preds = %15, %common.ret
  ret void

15:                                               ; preds = %3
  %16 = add nsw i32 %1, %0
  %17 = ashr i32 %16, 1
  %18 = sext i32 %2 to i64
  %19 = getelementptr inbounds [400040 x %struct.node], ptr @st, i64 0, i64 %18, i32 2
  store i32 0, ptr %19, align 4, !tbaa !11
  %20 = shl nsw i32 %2, 1
  tail call void @_Z5buildiii(i32 noundef %0, i32 noundef %17, i32 noundef %20)
  %21 = add nsw i32 %17, 1
  %22 = or disjoint i32 %20, 1
  tail call void @_Z5buildiii(i32 noundef %21, i32 noundef %1, i32 noundef %22)
  tail call void @_Z5mergei(i32 noundef %2)
  br label %common.ret18
}

attributes #0 = { 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" }

!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"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS4node", !6, i64 0, !6, i64 4, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{!10, !6, i64 4}


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