; LLVM IR from facebook/redex :: libredex/Resolver.ll (Z18find_top_intf_implPK8DexClassPK9DexStringPK8DexProto)

; 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: 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 hidden noundef ptr @_ZN12_GLOBAL__N_123resolve_intf_method_refEPK8DexClassPK9DexStringPK8DexProto(ptr noundef, ptr noundef, ptr noundef) #1

declare noundef ptr @_Z10type_classPK7DexType(ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176)) #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z18find_top_intf_implPK8DexClassPK9DexStringPK8DexProto(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store ptr null, ptr %7, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %21, %3
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %25

12:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = call noundef ptr @_ZN12_GLOBAL__N_123resolve_intf_method_refEPK8DexClassPK9DexStringPK8DexProto(ptr noundef %13, ptr noundef %14, ptr noundef %15)
  store ptr %16, ptr %8, align 8, !tbaa !5
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %21

19:                                               ; preds = %12
  %20 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %20, ptr %7, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %19, %12
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = call noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176) %22)
  %24 = call noundef ptr @_Z10type_classPK7DexType(ptr noundef %23)
  store ptr %24, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %9, !llvm.loop !9

25:                                               ; preds = %9
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret ptr %26
}

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 = { "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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; 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 hidden noundef ptr @_ZN12_GLOBAL__N_123resolve_intf_method_refEPK8DexClassPK9DexStringPK8DexProto(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

declare noundef ptr @_Z10type_classPK7DexType(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z18find_top_intf_implPK8DexClassPK9DexStringPK8DexProto(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %.not11 = icmp eq ptr %0, null
  br i1 %.not11, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.013 = phi ptr [ %6, %.lr.ph ], [ %0, %3 ]
  %.0812 = phi ptr [ %spec.select, %.lr.ph ], [ null, %3 ]
  %4 = tail call noundef ptr @_ZN12_GLOBAL__N_123resolve_intf_method_refEPK8DexClassPK9DexStringPK8DexProto(ptr noundef nonnull %.013, ptr noundef %1, ptr noundef %2)
  %.not10 = icmp eq ptr %4, null
  %spec.select = select i1 %.not10, ptr %.0812, ptr %4
  %5 = tail call noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176) %.013)
  %6 = tail call noundef ptr @_Z10type_classPK7DexType(ptr noundef %5)
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

._crit_edge:                                      ; preds = %.lr.ph, %3
  %.08.lcssa = phi ptr [ null, %3 ], [ %spec.select, %.lr.ph ]
  ret ptr %.08.lcssa
}

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" }
attributes #1 = { "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 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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