; LLVM IR from DimitrisJim/leetcode_solutions :: C/Algorithms (100)

; 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"

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @traverse(ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @isSameTree(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %12, label %8

8:                                                ; preds = %2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  store i1 true, ptr %3, align 1
  br label %29

12:                                               ; preds = %8, %2
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %18, label %15

15:                                               ; preds = %12
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %24, label %18

18:                                               ; preds = %15, %12
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = icmp ne ptr %19, null
  br i1 %20, label %21, label %25

21:                                               ; preds = %18
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %25, label %24

24:                                               ; preds = %21, %15
  store i1 false, ptr %3, align 1
  br label %29

25:                                               ; preds = %21, %18
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = call zeroext i1 @traverse(ptr noundef %26, ptr noundef %27)
  store i1 %28, ptr %3, align 1
  br label %29

29:                                               ; preds = %25, %24, %11
  %30 = load i1, ptr %3, align 1
  ret i1 %30
}

attributes #0 = { 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" }

!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/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"

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @traverse(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @isSameTree(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = icmp ne ptr %1, null
  %4 = icmp ne ptr %0, null
  %or.cond = or i1 %4, %3
  br i1 %or.cond, label %5, label %9

5:                                                ; preds = %2
  %6 = icmp eq ptr %1, null
  %or.cond14 = xor i1 %4, %6
  br i1 %or.cond14, label %7, label %9

7:                                                ; preds = %5
  %8 = tail call zeroext i1 @traverse(ptr noundef %0, ptr noundef %1)
  br label %9

9:                                                ; preds = %5, %2, %7
  %.0 = phi i1 [ %8, %7 ], [ true, %2 ], [ false, %5 ]
  ret i1 %.0
}

attributes #0 = { 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" }

!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,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass