; LLVM IR from aap/librw :: src/hanim.ll (ZN2rw14HAnimHierarchy4findEPNS_5FrameE)

; 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.rw::Frame" = type { %"struct.rw::Object", %"struct.rw::LLLink", %"struct.rw::LinkList", %"struct.rw::Matrix", %"struct.rw::Matrix", ptr, ptr, ptr }
%"struct.rw::Object" = type { i8, i8, i8, i8, ptr }
%"struct.rw::LLLink" = type { ptr, ptr }
%"struct.rw::LinkList" = type { %"struct.rw::LLLink" }
%"struct.rw::Matrix" = type { %"struct.rw::V3d", i32, %"struct.rw::V3d", i32, %"struct.rw::V3d", i32, %"struct.rw::V3d", i32 }
%"struct.rw::V3d" = type { float, 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: mustprogress uwtable
declare dso_local noundef ptr @_ZN2rw14HAnimHierarchy3getEPNS_5FrameE(ptr noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN2rw14HAnimHierarchy4findEPNS_5FrameE(ptr noundef %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %9

8:                                                ; preds = %1
  store ptr null, ptr %2, align 8
  br label %31

9:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = call noundef ptr @_ZN2rw14HAnimHierarchy3getEPNS_5FrameE(ptr noundef %10)
  store ptr %11, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %16

14:                                               ; preds = %9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %15, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %30

16:                                               ; preds = %9
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %"struct.rw::Frame", ptr %17, i32 0, i32 6
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  %20 = call noundef ptr @_ZN2rw14HAnimHierarchy4findEPNS_5FrameE(ptr noundef %19)
  store ptr %20, ptr %4, align 8, !tbaa !5
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %25

23:                                               ; preds = %16
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %24, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %30

25:                                               ; preds = %16
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %"struct.rw::Frame", ptr %26, i32 0, i32 5
  %28 = load ptr, ptr %27, align 8, !tbaa !18
  %29 = call noundef ptr @_ZN2rw14HAnimHierarchy4findEPNS_5FrameE(ptr noundef %28)
  store ptr %29, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %30

30:                                               ; preds = %25, %23, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  br label %31

31:                                               ; preds = %30, %8
  %32 = load ptr, ptr %2, align 8
  ret ptr %32
}

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, !6, i64 184}
!10 = !{!"_ZTSN2rw5FrameE", !11, i64 0, !12, i64 16, !13, i64 32, !14, i64 48, !14, i64 112, !6, i64 176, !6, i64 184, !6, i64 192}
!11 = !{!"_ZTSN2rw6ObjectE", !7, i64 0, !7, i64 1, !7, i64 2, !7, i64 3, !6, i64 8}
!12 = !{!"_ZTSN2rw6LLLinkE", !6, i64 0, !6, i64 8}
!13 = !{!"_ZTSN2rw8LinkListE", !12, i64 0}
!14 = !{!"_ZTSN2rw6MatrixE", !15, i64 0, !17, i64 12, !15, i64 16, !17, i64 28, !15, i64 32, !17, i64 44, !15, i64 48, !17, i64 60}
!15 = !{!"_ZTSN2rw3V3dE", !16, i64 0, !16, i64 4, !16, i64 8}
!16 = !{!"float", !7, i64 0}
!17 = !{!"int", !7, i64 0}
!18 = !{!10, !6, i64 176}


; 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 uwtable
declare dso_local noundef ptr @_ZN2rw14HAnimHierarchy3getEPNS_5FrameE(ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN2rw14HAnimHierarchy4findEPNS_5FrameE(ptr noundef %0) local_unnamed_addr #0 align 2 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %tailrecurse
  %.tr13 = phi ptr [ %9, %tailrecurse ], [ %0, %1 ]
  %3 = tail call noundef ptr @_ZN2rw14HAnimHierarchy3getEPNS_5FrameE(ptr noundef nonnull %.tr13)
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %4, label %._crit_edge

4:                                                ; preds = %.lr.ph
  %5 = getelementptr inbounds i8, ptr %.tr13, i64 184
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = tail call noundef ptr @_ZN2rw14HAnimHierarchy4findEPNS_5FrameE(ptr noundef %6)
  %.not12 = icmp eq ptr %7, null
  br i1 %.not12, label %tailrecurse, label %._crit_edge

tailrecurse:                                      ; preds = %4
  %8 = getelementptr inbounds i8, ptr %.tr13, i64 176
  %9 = load ptr, ptr %8, align 8, !tbaa !17
  %10 = icmp eq ptr %9, null
  br i1 %10, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %tailrecurse, %4, %.lr.ph, %1
  %.1 = phi ptr [ null, %1 ], [ %3, %.lr.ph ], [ %7, %4 ], [ null, %tailrecurse ]
  ret ptr %.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" }

!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, !10, i64 184}
!6 = !{!"_ZTSN2rw5FrameE", !7, i64 0, !11, i64 16, !12, i64 32, !13, i64 48, !13, i64 112, !10, i64 176, !10, i64 184, !10, i64 192}
!7 = !{!"_ZTSN2rw6ObjectE", !8, i64 0, !8, i64 1, !8, i64 2, !8, i64 3, !10, i64 8}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_ZTSN2rw6LLLinkE", !10, i64 0, !10, i64 8}
!12 = !{!"_ZTSN2rw8LinkListE", !11, i64 0}
!13 = !{!"_ZTSN2rw6MatrixE", !14, i64 0, !16, i64 12, !14, i64 16, !16, i64 28, !14, i64 32, !16, i64 44, !14, i64 48, !16, i64 60}
!14 = !{!"_ZTSN2rw3V3dE", !15, i64 0, !15, i64 4, !15, i64 8}
!15 = !{!"float", !8, i64 0}
!16 = !{!"int", !8, i64 0}
!17 = !{!6, !10, i64 176}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass