; LLVM IR from achilles288/robot-monitor-graphics :: src/base/internal/context_load.ll (ZN3rmg8internal12PendingStack4NodeD2Ev)

; 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"

%"struct.rmg::internal::PendingStack::Node" = type { ptr, %"class.rmg::internal::Pending" }
%"class.rmg::internal::Pending" = type { ptr, ptr }

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3rmg8internal12PendingStack4NodeD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"struct.rmg::internal::PendingStack::Node", ptr %3, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %13

7:                                                ; preds = %1
  %8 = getelementptr inbounds %"struct.rmg::internal::PendingStack::Node", ptr %3, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  %10 = icmp eq ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @_ZN3rmg8internal12PendingStack4NodeD1Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #2
  call void @_ZdlPvm(ptr noundef %9, i64 noundef 24) #3
  br label %12

12:                                               ; preds = %11, %7
  br label %13

13:                                               ; preds = %12, %1
  %14 = getelementptr inbounds %"struct.rmg::internal::PendingStack::Node", ptr %3, i32 0, i32 1
  call void @_ZN3rmg8internal7PendingD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %14) #2
  ret void
}

declare void @_ZN3rmg8internal7PendingD1Ev(ptr)

declare void @_ZN3rmg8internal12PendingStack4NodeD1Ev(ptr)

attributes #0 = { 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 #1 = { 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 = { nounwind }
attributes #3 = { 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 = !{!"_ZTSN3rmg8internal12PendingStack4NodeE", !6, i64 0, !11, i64 8}
!11 = !{!"_ZTSN3rmg8internal7PendingE", !6, i64 0, !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 nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3rmg8internal12PendingStack4NodeD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) unnamed_addr #1 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %4, label %3

3:                                                ; preds = %1
  tail call void @_ZN3rmg8internal12PendingStack4NodeD1Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #2
  tail call void @_ZdlPvm(ptr noundef nonnull %2, i64 noundef 24) #3
  br label %4

4:                                                ; preds = %3, %1
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  tail call void @_ZN3rmg8internal7PendingD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %5) #2
  ret void
}

declare void @_ZN3rmg8internal7PendingD1Ev(ptr) local_unnamed_addr

declare void @_ZN3rmg8internal12PendingStack4NodeD1Ev(ptr) local_unnamed_addr

attributes #0 = { 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 #1 = { 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 = { nounwind }
attributes #3 = { 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 = !{!"_ZTSN3rmg8internal12PendingStack4NodeE", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSN3rmg8internal7PendingE", !7, i64 0, !7, i64 8}


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