; LLVM IR from dmr-goncalves/HumanAwareRobotNavigation :: src/husky/husky_base/src/horizon_legacy/Transport.ll (ZN9clearpath9Transport7popNextEv)

; 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.clearpath::Transport" = type { i8, ptr, i32, %"class.std::__cxx11::list", [4 x i64] }
%"class.std::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<clearpath::Message *, std::allocator<clearpath::Message *>>::_List_impl" }
%"struct.std::__cxx11::_List_base<clearpath::Message *, std::allocator<clearpath::Message *>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }

@_ZTIPN9clearpath18TransportExceptionE = external dso_local constant { ptr, ptr, i32, ptr }, align 8
@.str.16 = external hidden unnamed_addr constant [25 x i8], align 1

; 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

declare ptr @__cxa_allocate_exception(i64)

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #1

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #2

declare void @__cxa_free_exception(ptr)

declare void @__cxa_throw(ptr, ptr, ptr)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN9clearpath9Transport4pollEv(ptr noundef nonnull align 8 dereferenceable(80)) #4 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN9clearpath9Transport7popNextEv(ptr noundef nonnull align 8 dereferenceable(80) %0) #4 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  br label %8

8:                                                ; preds = %1
  %9 = getelementptr inbounds %"class.clearpath::Transport", ptr %7, i32 0, i32 0
  %10 = load i8, ptr %9, align 8, !tbaa !9, !range !19, !noundef !20
  %11 = trunc i8 %10 to i1
  br i1 %11, label %26, label %12

12:                                               ; preds = %8
  %13 = call ptr @__cxa_allocate_exception(i64 8) #5
  %14 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #6
          to label %15 unwind label %17

15:                                               ; preds = %12
  invoke void @_ZN9clearpath18TransportExceptionC1EPKcNS0_6errorsE(ptr noundef nonnull align 8 dereferenceable(12) %14, ptr noundef @.str.16, i32 noundef 1)
          to label %16 unwind label %21

16:                                               ; preds = %15
  store ptr %14, ptr %13, align 16, !tbaa !5
  call void @__cxa_throw(ptr %13, ptr @_ZTIPN9clearpath18TransportExceptionE, ptr null) #7
  unreachable

17:                                               ; preds = %12
  %18 = landingpad { ptr, i32 }
          cleanup
  %19 = extractvalue { ptr, i32 } %18, 0
  store ptr %19, ptr %4, align 8
  %20 = extractvalue { ptr, i32 } %18, 1
  store i32 %20, ptr %5, align 4
  br label %25

21:                                               ; preds = %15
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %4, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %5, align 4
  call void @_ZdlPvm(ptr noundef %14, i64 noundef 16) #8
  br label %25

25:                                               ; preds = %21, %17
  call void @__cxa_free_exception(ptr %13) #5
  br label %39

26:                                               ; preds = %8
  br label %27

27:                                               ; preds = %26
  call void @_ZN9clearpath9Transport4pollEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  %28 = getelementptr inbounds %"class.clearpath::Transport", ptr %7, i32 0, i32 3
  %29 = call noundef zeroext i1 @_ZNKSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %28) #5
  br i1 %29, label %30, label %31

30:                                               ; preds = %27
  store ptr null, ptr %2, align 8
  br label %37

31:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %32 = getelementptr inbounds %"class.clearpath::Transport", ptr %7, i32 0, i32 3
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(24) %32) #5
  %34 = load ptr, ptr %33, align 8, !tbaa !5
  store ptr %34, ptr %6, align 8, !tbaa !5
  %35 = getelementptr inbounds %"class.clearpath::Transport", ptr %7, i32 0, i32 3
  call void @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24) %35) #5
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %36, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %37

37:                                               ; preds = %31, %30
  %38 = load ptr, ptr %2, align 8
  ret ptr %38

39:                                               ; preds = %25
  %40 = load ptr, ptr %4, align 8
  %41 = load i32, ptr %5, align 4
  %42 = insertvalue { ptr, i32 } poison, ptr %40, 0
  %43 = insertvalue { ptr, i32 } %42, i32 %41, 1
  resume { ptr, i32 } %43
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

declare void @_ZN9clearpath18TransportExceptionC1EPKcNS0_6errorsE(ptr, ptr, i32)

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nobuiltin allocsize(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 = { nobuiltin nounwind "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 = { 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 }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { noreturn }
attributes #8 = { builtin 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, !11, i64 0}
!10 = !{!"_ZTSN9clearpath9TransportE", !11, i64 0, !6, i64 8, !12, i64 16, !13, i64 24, !7, i64 48}
!11 = !{!"bool", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!"_ZTSNSt7__cxx114listIPN9clearpath7MessageESaIS3_EEE", !14, i64 0}
!14 = !{!"_ZTSNSt7__cxx1110_List_baseIPN9clearpath7MessageESaIS3_EEE", !15, i64 0}
!15 = !{!"_ZTSNSt7__cxx1110_List_baseIPN9clearpath7MessageESaIS3_EE10_List_implE", !16, i64 0}
!16 = !{!"_ZTSNSt8__detail17_List_node_headerE", !17, i64 0, !18, i64 16}
!17 = !{!"_ZTSNSt8__detail15_List_node_baseE", !6, i64 0, !6, i64 8}
!18 = !{!"long", !7, i64 0}
!19 = !{i8 0, i8 2}
!20 = !{}


; 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"

@_ZTIPN9clearpath18TransportExceptionE = external dso_local constant { ptr, ptr, i32, ptr }, align 8
@.str.16 = external hidden unnamed_addr constant [25 x i8], align 1

declare i32 @__gxx_personality_v0(...)

declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #0

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #1

declare void @__cxa_free_exception(ptr) local_unnamed_addr

declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN9clearpath9Transport4pollEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN9clearpath9Transport7popNextEv(ptr noundef nonnull align 8 dereferenceable(80) %0) local_unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %2 = load i8, ptr %0, align 8, !tbaa !5, !range !18, !noundef !19
  %3 = trunc nuw i8 %2 to i1
  br i1 %3, label %14, label %4

4:                                                ; preds = %1
  %5 = tail call ptr @__cxa_allocate_exception(i64 8) #4
  %6 = invoke noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #5
          to label %7 unwind label %9

7:                                                ; preds = %4
  invoke void @_ZN9clearpath18TransportExceptionC1EPKcNS0_6errorsE(ptr noundef nonnull align 8 dereferenceable(12) %6, ptr noundef nonnull @.str.16, i32 noundef 1)
          to label %8 unwind label %11

8:                                                ; preds = %7
  store ptr %6, ptr %5, align 16, !tbaa !20
  tail call void @__cxa_throw(ptr nonnull %5, ptr nonnull @_ZTIPN9clearpath18TransportExceptionE, ptr null) #6
  unreachable

9:                                                ; preds = %4
  %10 = landingpad { ptr, i32 }
          cleanup
  br label %13

11:                                               ; preds = %7
  %12 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %6, i64 noundef 16) #7
  br label %13

13:                                               ; preds = %11, %9
  %.pn = phi { ptr, i32 } [ %12, %11 ], [ %10, %9 ]
  tail call void @__cxa_free_exception(ptr %5) #4
  resume { ptr, i32 } %.pn

14:                                               ; preds = %1
  tail call void @_ZN9clearpath9Transport4pollEv(ptr noundef nonnull align 8 dereferenceable(80) %0)
  %15 = getelementptr inbounds i8, ptr %0, i64 24
  %16 = tail call noundef zeroext i1 @_ZNKSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #4
  br i1 %16, label %20, label %17

17:                                               ; preds = %14
  %18 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #4
  %19 = load ptr, ptr %18, align 8, !tbaa !20
  tail call void @_ZNSt7__cxx114listIPN9clearpath7MessageESaIS3_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #4
  br label %20

20:                                               ; preds = %14, %17
  %.0 = phi ptr [ %19, %17 ], [ null, %14 ]
  ret ptr %.0
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt7__cxx114listIPN9clearpath7MessageESaIS3_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

declare void @_ZN9clearpath18TransportExceptionC1EPKcNS0_6errorsE(ptr, ptr, i32) local_unnamed_addr

attributes #0 = { nobuiltin allocsize(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 = { nobuiltin nounwind "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 = { 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 }
attributes #5 = { builtin allocsize(0) }
attributes #6 = { noreturn }
attributes #7 = { builtin 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, !7, i64 0}
!6 = !{!"_ZTSN9clearpath9TransportE", !7, i64 0, !10, i64 8, !11, i64 16, !12, i64 24, !8, i64 48}
!7 = !{!"bool", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!"_ZTSNSt7__cxx114listIPN9clearpath7MessageESaIS3_EEE", !13, i64 0}
!13 = !{!"_ZTSNSt7__cxx1110_List_baseIPN9clearpath7MessageESaIS3_EEE", !14, i64 0}
!14 = !{!"_ZTSNSt7__cxx1110_List_baseIPN9clearpath7MessageESaIS3_EE10_List_implE", !15, i64 0}
!15 = !{!"_ZTSNSt8__detail17_List_node_headerE", !16, i64 0, !17, i64 16}
!16 = !{!"_ZTSNSt8__detail15_List_node_baseE", !10, i64 0, !10, i64 8}
!17 = !{!"long", !8, i64 0}
!18 = !{i8 0, i8 2}
!19 = !{}
!20 = !{!10, !10, i64 0}


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