; LLVM IR from facebook/redex :: service/loop-info/LoopInfo.ll (ZNK9loop_impl4Loop8containsEPS0_)

; 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: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN9loop_impl4Loop15get_parent_loopEv(ptr noundef nonnull align 8 dereferenceable(152)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK9loop_impl4Loop8containsEPS0_(ptr noundef nonnull align 8 dereferenceable(152) %0, ptr noundef %1) #1 align 2 {
  %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 %4, align 8
  %7 = load ptr, ptr %5, align 8, !tbaa !5
  %8 = icmp eq ptr %7, %6
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  store i1 true, ptr %3, align 1
  br label %18

10:                                               ; preds = %2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  store i1 false, ptr %3, align 1
  br label %18

14:                                               ; preds = %10
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = call noundef ptr @_ZN9loop_impl4Loop15get_parent_loopEv(ptr noundef nonnull align 8 dereferenceable(152) %15)
  %17 = call noundef zeroext i1 @_ZNK9loop_impl4Loop8containsEPS0_(ptr noundef nonnull align 8 dereferenceable(152) %6, ptr noundef %16)
  store i1 %17, ptr %3, align 1
  br label %18

18:                                               ; preds = %14, %13, %9
  %19 = load i1, ptr %3, align 1
  ret i1 %19
}

attributes #0 = { 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 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"}


; 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 nounwind uwtable
declare dso_local noundef ptr @_ZN9loop_impl4Loop15get_parent_loopEv(ptr noundef nonnull align 8 dereferenceable(152)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK9loop_impl4Loop8containsEPS0_(ptr noundef nonnull readnone align 8 dereferenceable(152) %0, ptr noundef %1) local_unnamed_addr #0 align 2 {
  %3 = icmp eq ptr %1, %0
  br i1 %3, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %tailrecurse
  %.tr78 = phi ptr [ %4, %tailrecurse ], [ %1, %2 ]
  %.not.not = icmp ne ptr %.tr78, null
  br i1 %.not.not, label %tailrecurse, label %._crit_edge

tailrecurse:                                      ; preds = %.lr.ph
  %4 = tail call noundef ptr @_ZN9loop_impl4Loop15get_parent_loopEv(ptr noundef nonnull align 8 dereferenceable(152) %.tr78)
  %5 = icmp eq ptr %4, %0
  br i1 %5, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %tailrecurse, %.lr.ph, %2
  %.0 = phi i1 [ true, %2 ], [ %.not.not, %.lr.ph ], [ %.not.not, %tailrecurse ]
  ret i1 %.0
}

attributes #0 = { 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)"}


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