; LLVM IR from jrouwe/JoltPhysics :: Jolt/Geometry/ConvexHullBuilder.ll (ZN3JPH17ConvexHullBuilder9FreeFacesEv)

; 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.JPH::ConvexHullBuilder" = type { ptr, %"class.JPH::Array.2", %"class.JPH::Array.5" }
%"class.JPH::Array.2" = type { i64, i64, ptr }
%"class.JPH::Array.5" = type { i64, i64, ptr }

; 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
define dso_local void @_ZN3JPH17ConvexHullBuilder9FreeFacesEv(ptr noundef nonnull align 8 dereferenceable(56) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %8 = getelementptr inbounds %"class.JPH::ConvexHullBuilder", ptr %7, i32 0, i32 1
  store ptr %8, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = call noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %9)
  store ptr %10, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = call noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %11)
  store ptr %12, ptr %5, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %25, %1
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = icmp ne ptr %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  br label %28

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load ptr, ptr %19, align 8, !tbaa !5
  store ptr %20, ptr %6, align 8, !tbaa !5
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = icmp eq ptr %21, null
  br i1 %22, label %24, label %23

23:                                               ; preds = %18
  call void @_ZN3JPH17ConvexHullBuilder4FaceD1Ev(ptr noundef nonnull align 16 dereferenceable(69) %21) #5
  call void @_ZN3JPH17ConvexHullBuilder4FacedlEPv(ptr noundef %21) #5
  br label %24

24:                                               ; preds = %23, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %25

25:                                               ; preds = %24
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds ptr, ptr %26, i32 1
  store ptr %27, ptr %4, align 8, !tbaa !5
  br label %13

28:                                               ; preds = %17
  %29 = getelementptr inbounds %"class.JPH::ConvexHullBuilder", ptr %7, i32 0, i32 1
  call void @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %29)
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: alwaysinline mustprogress nounwind uwtable
declare dso_local void @_ZN3JPH17ConvexHullBuilder4FacedlEPv(ptr noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

declare void @_ZN3JPH17ConvexHullBuilder4FaceD1Ev(ptr)

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 = { 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 #3 = { alwaysinline 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 = { inlinehint 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 #5 = { 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"}


; 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
define dso_local void @_ZN3JPH17ConvexHullBuilder9FreeFacesEv(ptr noundef nonnull align 8 dereferenceable(56) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = tail call noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %2)
  %4 = tail call noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %2)
  %.not9 = icmp eq ptr %3, %4
  br i1 %.not9, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %8, %1
  tail call void @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %2)
  ret void

.lr.ph:                                           ; preds = %1, %8
  %.010 = phi ptr [ %9, %8 ], [ %3, %1 ]
  %5 = load ptr, ptr %.010, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %.lr.ph
  tail call void @_ZN3JPH17ConvexHullBuilder4FaceD1Ev(ptr noundef nonnull align 16 dereferenceable(69) %5) #4
  tail call void @_ZN3JPH17ConvexHullBuilder4FacedlEPv(ptr noundef nonnull %5) #4
  br label %8

8:                                                ; preds = %7, %.lr.ph
  %9 = getelementptr inbounds i8, ptr %.010, i64 8
  %.not = icmp eq ptr %9, %4
  br i1 %.not, label %._crit_edge, label %.lr.ph
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: alwaysinline mustprogress nounwind uwtable
declare dso_local void @_ZN3JPH17ConvexHullBuilder4FacedlEPv(ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN3JPH5ArrayIPNS_17ConvexHullBuilder4FaceENS_12STLAllocatorIS3_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

declare void @_ZN3JPH17ConvexHullBuilder4FaceD1Ev(ptr) local_unnamed_addr

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 = { 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 = { alwaysinline 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 #3 = { inlinehint 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 #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"}


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