; LLVM IR from buresjan/optim_lbm :: nomad/src/Algos/Step.ll (ZNK9NOMAD_4_34Step16getIterationMeshEv)

; 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.std::shared_ptr.62" = type { %"class.std::__shared_ptr.63" }
%"class.std::__shared_ptr.63" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; 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 @_ZNK9NOMAD_4_34Step16getIterationMeshEv(ptr dead_on_unwind noalias writable sret(%"class.std::shared_ptr.62") align 8 %0, ptr noundef nonnull align 8 dereferenceable(140) %1) #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::shared_ptr.62", align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8
  store i1 false, ptr %5, align 1
  call void @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEC2EDn(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr null) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %11 = invoke noundef ptr @_ZNK9NOMAD_4_34Step15getParentOfTypeIPNS_9IterationEEET_b(ptr noundef nonnull align 8 dereferenceable(140) %10, i1 noundef zeroext true)
          to label %12 unwind label %22

12:                                               ; preds = %2
  store ptr %11, ptr %6, align 8, !tbaa !5
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = icmp ne ptr null, %13
  br i1 %14, label %15, label %30

15:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 16, ptr %9) #3
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = load ptr, ptr %16, align 8, !tbaa !9
  %18 = getelementptr inbounds ptr, ptr %17, i64 10
  %19 = load ptr, ptr %18, align 8
  invoke void %19(ptr dead_on_unwind writable sret(%"class.std::shared_ptr.62") align 8 %9, ptr noundef nonnull align 8 dereferenceable(152) %16)
          to label %20 unwind label %26

20:                                               ; preds = %15
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEaSERKS2_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %9) #3
  call void @_ZNSt12__shared_ptrIN9NOMAD_4_38MeshBaseELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %9) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #3
  br label %30

22:                                               ; preds = %2
  %23 = landingpad { ptr, i32 }
          cleanup
  %24 = extractvalue { ptr, i32 } %23, 0
  store ptr %24, ptr %7, align 8
  %25 = extractvalue { ptr, i32 } %23, 1
  store i32 %25, ptr %8, align 4
  br label %32

26:                                               ; preds = %15
  %27 = landingpad { ptr, i32 }
          cleanup
  %28 = extractvalue { ptr, i32 } %27, 0
  store ptr %28, ptr %7, align 8
  %29 = extractvalue { ptr, i32 } %27, 1
  store i32 %29, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #3
  br label %32

30:                                               ; preds = %20, %12
  store i1 true, ptr %5, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %31 = load i1, ptr %5, align 1
  br i1 %31, label %34, label %33

32:                                               ; preds = %26, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @_ZNSt12__shared_ptrIN9NOMAD_4_38MeshBaseELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) #3
  br label %35

33:                                               ; preds = %30
  call void @_ZNSt12__shared_ptrIN9NOMAD_4_38MeshBaseELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) #3
  br label %34

34:                                               ; preds = %33, %30
  ret void

35:                                               ; preds = %32
  %36 = load ptr, ptr %7, align 8
  %37 = load i32, ptr %8, align 4
  %38 = insertvalue { ptr, i32 } poison, ptr %36, 0
  %39 = insertvalue { ptr, i32 } %38, i32 %37, 1
  resume { ptr, i32 } %39
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEC2EDn(ptr noundef nonnull align 8 dereferenceable(16), ptr) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9NOMAD_4_34Step15getParentOfTypeIPNS_9IterationEEET_b(ptr noundef nonnull align 8 dereferenceable(140), i1 noundef zeroext) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEaSERKS2_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrIN9NOMAD_4_38MeshBaseELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #2 align 2

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 = { 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 = { 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, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}


; 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"

%"class.std::shared_ptr.62" = type { %"class.std::__shared_ptr.63" }
%"class.std::__shared_ptr.63" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress 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 @_ZNK9NOMAD_4_34Step16getIterationMeshEv(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::shared_ptr.62") align 8 %0, ptr noundef nonnull align 8 dereferenceable(140) %1) local_unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::shared_ptr.62", align 8
  tail call void @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEC2EDn(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr null) #3
  %4 = tail call noundef ptr @_ZNK9NOMAD_4_34Step15getParentOfTypeIPNS_9IterationEEET_b(ptr noundef nonnull align 8 dereferenceable(140) %1, i1 noundef zeroext true)
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %13, label %5

5:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #3
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 80
  %8 = load ptr, ptr %7, align 8
  invoke void %8(ptr dead_on_unwind nonnull writable sret(%"class.std::shared_ptr.62") align 8 %3, ptr noundef nonnull align 8 dereferenceable(152) %4)
          to label %9 unwind label %11

9:                                                ; preds = %5
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEaSERKS2_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %3) #3
  call void @_ZNSt12__shared_ptrIN9NOMAD_4_38MeshBaseELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %3) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #3
  br label %13

11:                                               ; preds = %5
  %12 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #3
  call void @_ZNSt12__shared_ptrIN9NOMAD_4_38MeshBaseELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) #3
  resume { ptr, i32 } %12

13:                                               ; preds = %2, %9
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEC2EDn(ptr noundef nonnull align 8 dereferenceable(16), ptr) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9NOMAD_4_34Step15getParentOfTypeIPNS_9IterationEEET_b(ptr noundef nonnull align 8 dereferenceable(140), i1 noundef zeroext) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt10shared_ptrIN9NOMAD_4_38MeshBaseEEaSERKS2_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrIN9NOMAD_4_38MeshBaseELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { 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 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


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