; LLVM IR from mtsamis/box2d-optimized :: src/collision/b2_broad_phase.ll (ZNK12b2BroadPhase13ComputeHeightEP10b2TreeNode)

; 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.b2TreeNode = type { ptr, ptr, ptr, ptr, %struct.b2AABB }
%struct.b2AABB = type { %struct.b2Vec2, %struct.b2Vec2 }
%struct.b2Vec2 = type { float, float }

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z5b2MaxIiET_S0_S0_(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK12b2BroadPhase13ComputeHeightEP10b2TreeNode(ptr noundef nonnull align 8 dereferenceable(137) %0, ptr noundef %1) #2 align 2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = call noundef zeroext i1 @_ZNK10b2TreeNode6IsLeafEv(ptr noundef nonnull align 8 dereferenceable(48) %9)
  br i1 %10, label %11, label %12

11:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  br label %25

12:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.b2TreeNode, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  %16 = call noundef i32 @_ZNK12b2BroadPhase13ComputeHeightEP10b2TreeNode(ptr noundef nonnull align 8 dereferenceable(137) %8, ptr noundef %15)
  store i32 %16, ptr %6, align 4, !tbaa !14
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.b2TreeNode, ptr %17, i32 0, i32 1
  %19 = load ptr, ptr %18, align 8, !tbaa !16
  %20 = call noundef i32 @_ZNK12b2BroadPhase13ComputeHeightEP10b2TreeNode(ptr noundef nonnull align 8 dereferenceable(137) %8, ptr noundef %19)
  store i32 %20, ptr %7, align 4, !tbaa !14
  %21 = load i32, ptr %6, align 4, !tbaa !14
  %22 = load i32, ptr %7, align 4, !tbaa !14
  %23 = call noundef i32 @_Z5b2MaxIiET_S0_S0_(i32 noundef %21, i32 noundef %22)
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %25

25:                                               ; preds = %12, %11
  %26 = load i32, ptr %3, align 4
  ret i32 %26
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK10b2TreeNode6IsLeafEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint mustprogress 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" }
attributes #2 = { 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 #3 = { mustprogress 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" }
attributes #4 = { 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, !6, i64 0}
!10 = !{!"_ZTS10b2TreeNode", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !11, i64 32}
!11 = !{!"_ZTS6b2AABB", !12, i64 0, !12, i64 8}
!12 = !{!"_ZTS6b2Vec2", !13, i64 0, !13, i64 4}
!13 = !{!"float", !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"int", !7, i64 0}
!16 = !{!10, !6, i64 8}


; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z5b2MaxIiET_S0_S0_(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef range(i32 -2147483647, -2147483648) i32 @_ZNK12b2BroadPhase13ComputeHeightEP10b2TreeNode(ptr noundef nonnull align 8 dereferenceable(137) %0, ptr noundef nonnull %1) local_unnamed_addr #1 align 2 {
  %3 = tail call noundef zeroext i1 @_ZNK10b2TreeNode6IsLeafEv(ptr noundef nonnull align 8 dereferenceable(48) %1)
  br i1 %3, label %common.ret6, label %4

common.ret6:                                      ; preds = %2, %4
  %common.ret6.op = phi i32 [ %11, %4 ], [ 0, %2 ]
  ret i32 %common.ret6.op

4:                                                ; preds = %2
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = tail call noundef i32 @_ZNK12b2BroadPhase13ComputeHeightEP10b2TreeNode(ptr noundef nonnull align 8 dereferenceable(137) %0, ptr noundef %5)
  %7 = getelementptr inbounds i8, ptr %1, i64 8
  %8 = load ptr, ptr %7, align 8, !tbaa !13
  %9 = tail call noundef i32 @_ZNK12b2BroadPhase13ComputeHeightEP10b2TreeNode(ptr noundef nonnull align 8 dereferenceable(137) %0, ptr noundef %8)
  %10 = tail call noundef i32 @_Z5b2MaxIiET_S0_S0_(i32 noundef %6, i32 noundef %9)
  %11 = add nsw i32 %10, 1
  br label %common.ret6
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK10b2TreeNode6IsLeafEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

attributes #0 = { inlinehint mustprogress 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" }
attributes #1 = { mustprogress 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, !7, i64 0}
!6 = !{!"_ZTS10b2TreeNode", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTS6b2AABB", !11, i64 0, !11, i64 8}
!11 = !{!"_ZTS6b2Vec2", !12, i64 0, !12, i64 4}
!12 = !{!"float", !8, i64 0}
!13 = !{!6, !7, i64 8}


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