; LLVM IR from stan-dev/math :: lib/tbb_2020.3/src/old (concurrent_queue_v2)

; 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.tbb::internal::concurrent_queue_iterator_base" = type { ptr, ptr }
%"class.tbb::internal::concurrent_queue_iterator_rep" = type { i64, ptr, [8 x ptr] }

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

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3tbb8internal30concurrent_queue_iterator_baseC2ERKNS0_21concurrent_queue_baseE(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(40) %1) unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  %8 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 80) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  invoke void @_ZN3tbb8internal29concurrent_queue_iterator_repC2ERKNS0_21concurrent_queue_baseE(ptr noundef nonnull align 8 dereferenceable(80) %8, ptr noundef nonnull align 8 dereferenceable(40) %9)
          to label %10 unwind label %20

10:                                               ; preds = %2
  %11 = getelementptr inbounds %"class.tbb::internal::concurrent_queue_iterator_base", ptr %7, i32 0, i32 0
  store ptr %8, ptr %11, align 8, !tbaa !9
  %12 = getelementptr inbounds %"class.tbb::internal::concurrent_queue_iterator_base", ptr %7, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = getelementptr inbounds %"class.tbb::internal::concurrent_queue_iterator_base", ptr %7, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  %16 = getelementptr inbounds %"class.tbb::internal::concurrent_queue_iterator_rep", ptr %15, i32 0, i32 0
  %17 = load i64, ptr %16, align 8, !tbaa !11
  %18 = call noundef ptr @_ZN3tbb8internal29concurrent_queue_iterator_rep6chooseEm(ptr noundef nonnull align 8 dereferenceable(80) %13, i64 noundef %17)
  %19 = getelementptr inbounds %"class.tbb::internal::concurrent_queue_iterator_base", ptr %7, i32 0, i32 1
  store ptr %18, ptr %19, align 8, !tbaa !14
  ret void

20:                                               ; preds = %2
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %5, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %6, align 4
  call void @_ZdlPvm(ptr noundef %8, i64 noundef 80) #4
  br label %24

24:                                               ; preds = %20
  %25 = load ptr, ptr %5, align 8
  %26 = load i32, ptr %6, align 4
  %27 = insertvalue { ptr, i32 } poison, ptr %25, 0
  %28 = insertvalue { ptr, i32 } %27, i32 %26, 1
  resume { ptr, i32 } %28
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3tbb8internal29concurrent_queue_iterator_repC2ERKNS0_21concurrent_queue_baseE(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN3tbb8internal29concurrent_queue_iterator_rep6chooseEm(ptr noundef nonnull align 8 dereferenceable(80), i64 noundef) #2 align 2

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 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 = { builtin allocsize(0) }
attributes #4 = { 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, !6, i64 0}
!10 = !{!"_ZTSN3tbb8internal30concurrent_queue_iterator_baseE", !6, i64 0, !6, i64 8}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTSN3tbb8internal29concurrent_queue_iterator_repE", !13, i64 0, !6, i64 8, !7, i64 16}
!13 = !{!"long", !7, i64 0}
!14 = !{!10, !6, i64 8}


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

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3tbb8internal30concurrent_queue_iterator_baseC2ERKNS0_21concurrent_queue_baseE(ptr nocapture noundef nonnull writeonly align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(40) %1) unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %3 = tail call noalias noundef nonnull dereferenceable(80) ptr @_Znwm(i64 noundef 80) #3
  invoke void @_ZN3tbb8internal29concurrent_queue_iterator_repC2ERKNS0_21concurrent_queue_baseE(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(40) %1)
          to label %4 unwind label %8

4:                                                ; preds = %2
  store ptr %3, ptr %0, align 8, !tbaa !5
  %5 = load i64, ptr %3, align 8, !tbaa !10
  %6 = tail call noundef ptr @_ZN3tbb8internal29concurrent_queue_iterator_rep6chooseEm(ptr noundef nonnull align 8 dereferenceable(80) %3, i64 noundef %5)
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %6, ptr %7, align 8, !tbaa !13
  ret void

8:                                                ; preds = %2
  %9 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %3, i64 noundef 80) #4
  resume { ptr, i32 } %9
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3tbb8internal29concurrent_queue_iterator_repC2ERKNS0_21concurrent_queue_baseE(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN3tbb8internal29concurrent_queue_iterator_rep6chooseEm(ptr noundef nonnull align 8 dereferenceable(80), i64 noundef) local_unnamed_addr #2 align 2

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 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 = { builtin allocsize(0) }
attributes #4 = { 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 = !{!"_ZTSN3tbb8internal30concurrent_queue_iterator_baseE", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !12, i64 0}
!11 = !{!"_ZTSN3tbb8internal29concurrent_queue_iterator_repE", !12, i64 0, !7, i64 8, !8, i64 16}
!12 = !{!"long", !8, i64 0}
!13 = !{!6, !7, i64 8}


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