; LLVM IR from priyankchheda/algorithms :: _other_languages/cpp/RedBlackTree/find.ll (ZN12RedBlackTree4findEP4Nodei)

; 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"

%class.RedBlackTree = type <{ ptr, i32, [4 x i8] }>
%struct.Node = type { i32, i32, ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN12RedBlackTree4findEP4Nodei(ptr noundef nonnull align 8 dereferenceable(12) %0, ptr noundef %1, i32 noundef %2) #0 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  %8 = load ptr, ptr %5, align 8
  %9 = getelementptr inbounds %class.RedBlackTree, ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !11
  %11 = icmp eq ptr %10, null
  br i1 %11, label %12, label %13

12:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  br label %42

13:                                               ; preds = %3
  %14 = load i32, ptr %7, align 4, !tbaa !9
  %15 = getelementptr inbounds %class.RedBlackTree, ptr %8, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !11
  %17 = getelementptr inbounds %struct.Node, ptr %16, i32 0, i32 0
  %18 = load i32, ptr %17, align 8, !tbaa !13
  %19 = icmp eq i32 %14, %18
  br i1 %19, label %20, label %21

20:                                               ; preds = %13
  store i1 true, ptr %4, align 1
  br label %42

21:                                               ; preds = %13
  %22 = load i32, ptr %7, align 4, !tbaa !9
  %23 = getelementptr inbounds %class.RedBlackTree, ptr %8, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  %25 = getelementptr inbounds %struct.Node, ptr %24, i32 0, i32 0
  %26 = load i32, ptr %25, align 8, !tbaa !13
  %27 = icmp slt i32 %22, %26
  br i1 %27, label %28, label %35

28:                                               ; preds = %21
  %29 = getelementptr inbounds %class.RedBlackTree, ptr %8, i32 0, i32 0
  %30 = load ptr, ptr %29, align 8, !tbaa !11
  %31 = getelementptr inbounds %struct.Node, ptr %30, i32 0, i32 2
  %32 = load ptr, ptr %31, align 8, !tbaa !15
  %33 = load i32, ptr %7, align 4, !tbaa !9
  %34 = call noundef zeroext i1 @_ZN12RedBlackTree4findEP4Nodei(ptr noundef nonnull align 8 dereferenceable(12) %8, ptr noundef %32, i32 noundef %33)
  store i1 %34, ptr %4, align 1
  br label %42

35:                                               ; preds = %21
  %36 = getelementptr inbounds %class.RedBlackTree, ptr %8, i32 0, i32 0
  %37 = load ptr, ptr %36, align 8, !tbaa !11
  %38 = getelementptr inbounds %struct.Node, ptr %37, i32 0, i32 3
  %39 = load ptr, ptr %38, align 8, !tbaa !16
  %40 = load i32, ptr %7, align 4, !tbaa !9
  %41 = call noundef zeroext i1 @_ZN12RedBlackTree4findEP4Nodei(ptr noundef nonnull align 8 dereferenceable(12) %8, ptr noundef %39, i32 noundef %40)
  store i1 %41, ptr %4, align 1
  br label %42

42:                                               ; preds = %35, %28, %20, %12
  %43 = load i1, ptr %4, align 1
  ret i1 %43
}

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 = !{!"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 0}
!12 = !{!"_ZTS12RedBlackTree", !6, i64 0, !10, i64 8}
!13 = !{!14, !10, i64 0}
!14 = !{!"_ZTS4Node", !10, i64 0, !10, i64 4, !6, i64 8, !6, i64 16, !6, i64 24}
!15 = !{!14, !6, i64 8}
!16 = !{!14, !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(read, inaccessiblemem: none) uwtable
define dso_local noundef zeroext i1 @_ZN12RedBlackTree4findEP4Nodei(ptr nocapture noundef nonnull readonly align 8 dereferenceable(12) %0, ptr nocapture noundef readnone %1, i32 noundef %2) local_unnamed_addr #0 align 2 {
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = icmp ne ptr %4, null
  br i1 %5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %6 = load i32, ptr %4, align 8, !tbaa !11
  %7 = icmp eq i32 %6, %2
  tail call void @llvm.assume(i1 %7)
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret i1 %5
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write)
declare void @llvm.assume(i1 noundef) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, 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 willreturn memory(inaccessiblemem: write) }

!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, !7, i64 0}
!6 = !{!"_ZTS12RedBlackTree", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS4Node", !10, i64 0, !10, i64 4, !7, i64 8, !7, i64 16, !7, i64 24}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,PostOrderFunctionAttrsPass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass