; LLVM IR from Leet-Us-Code/DSA-A-Z-Practice :: Sid's Levels/Level - 1/BinaryTree/RootToLeafPathSum.ll (Z6helperP4Nodeii)

; 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, ptr, ptr }

; 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 noundef zeroext i1 @_Z6helperP4Nodeii(ptr noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i8, align 1
  %9 = alloca i32, align 4
  %10 = alloca i8, align 1
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %19

13:                                               ; preds = %3
  %14 = load i32, ptr %6, align 4, !tbaa !9
  %15 = load i32, ptr %7, align 4, !tbaa !9
  %16 = icmp eq i32 %14, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %13
  store i1 true, ptr %4, align 1
  br label %55

18:                                               ; preds = %13
  store i1 false, ptr %4, align 1
  br label %55

19:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #2
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.Node, ptr %20, i32 0, i32 1
  %22 = load ptr, ptr %21, align 8, !tbaa !11
  %23 = load i32, ptr %6, align 4, !tbaa !9
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.Node, ptr %24, i32 0, i32 0
  %26 = load i32, ptr %25, align 8, !tbaa !13
  %27 = add nsw i32 %23, %26
  %28 = load i32, ptr %7, align 4, !tbaa !9
  %29 = call noundef zeroext i1 @_Z6helperP4Nodeii(ptr noundef %22, i32 noundef %27, i32 noundef %28)
  %30 = zext i1 %29 to i8
  store i8 %30, ptr %8, align 1, !tbaa !14
  %31 = load i8, ptr %8, align 1, !tbaa !14, !range !16, !noundef !17
  %32 = trunc i8 %31 to i1
  br i1 %32, label %33, label %34

33:                                               ; preds = %19
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %51

34:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #2
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.Node, ptr %35, i32 0, i32 2
  %37 = load ptr, ptr %36, align 8, !tbaa !18
  %38 = load i32, ptr %6, align 4, !tbaa !9
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.Node, ptr %39, i32 0, i32 0
  %41 = load i32, ptr %40, align 8, !tbaa !13
  %42 = add nsw i32 %38, %41
  %43 = load i32, ptr %7, align 4, !tbaa !9
  %44 = call noundef zeroext i1 @_Z6helperP4Nodeii(ptr noundef %37, i32 noundef %42, i32 noundef %43)
  %45 = zext i1 %44 to i8
  store i8 %45, ptr %10, align 1, !tbaa !14
  %46 = load i8, ptr %10, align 1, !tbaa !14, !range !16, !noundef !17
  %47 = trunc i8 %46 to i1
  br i1 %47, label %48, label %49

48:                                               ; preds = %34
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %50

49:                                               ; preds = %34
  store i32 0, ptr %9, align 4
  br label %50

50:                                               ; preds = %49, %48
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #2
  br label %51

51:                                               ; preds = %50, %33
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #2
  %52 = load i32, ptr %9, align 4
  switch i32 %52, label %57 [
    i32 0, label %53
    i32 1, label %55
  ]

53:                                               ; preds = %51
  br label %54

54:                                               ; preds = %53
  unreachable

55:                                               ; preds = %51, %18, %17
  %56 = load i1, ptr %4, align 1
  ret i1 %56

57:                                               ; preds = %51
  unreachable
}

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 = !{!"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, !6, i64 8}
!12 = !{!"_ZTS4Node", !10, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !10, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"bool", !7, i64 0}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = !{!12, !6, i64 16}


; 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef zeroext i1 @_Z6helperP4Nodeii(ptr noundef readonly %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp ne ptr %0, null
  %5 = icmp eq i32 %1, %2
  %.2 = or i1 %4, %5
  ret i1 %.2
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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" }

!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)"}


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