; LLVM IR from achilles288/robot-monitor-graphics :: src/base/internal/context_load.ll (ZN3rmg8internal7PendingC2ERKS1_)

; 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.rmg::internal::Pending" = type { ptr, ptr }
%"struct.rmg::internal::Pending::Shared" = type { i64, i8 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3rmg8internal7PendingC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) unnamed_addr #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  %6 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %5, i32 0, i32 0
  store ptr null, ptr %6, align 8, !tbaa !9
  %7 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %5, i32 0, i32 1
  store ptr null, ptr %7, align 8, !tbaa !11
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %5, i32 0, i32 0
  store ptr %10, ptr %11, align 8, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %12, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %5, i32 0, i32 1
  store ptr %14, ptr %15, align 8, !tbaa !11
  %16 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %5, i32 0, i32 1
  %17 = load ptr, ptr %16, align 8, !tbaa !11
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %25

19:                                               ; preds = %2
  %20 = getelementptr inbounds %"class.rmg::internal::Pending", ptr %5, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !11
  %22 = getelementptr inbounds %"struct.rmg::internal::Pending::Shared", ptr %21, i32 0, i32 0
  %23 = load i64, ptr %22, align 8, !tbaa !12
  %24 = add i64 %23, 1
  store i64 %24, ptr %22, align 8, !tbaa !12
  br label %25

25:                                               ; preds = %19, %2
  ret void
}

attributes #0 = { 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" }

!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 = !{!"_ZTSN3rmg8internal7PendingE", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{!13, !14, i64 0}
!13 = !{!"_ZTSN3rmg8internal7Pending6SharedE", !14, i64 0, !15, i64 8}
!14 = !{!"long", !7, i64 0}
!15 = !{!"bool", !7, 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN3rmg8internal7PendingC2ERKS1_(ptr nocapture noundef nonnull writeonly align 8 dereferenceable(16) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %1) unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %0, i8 0, i64 16, i1 false)
  %4 = load ptr, ptr %1, align 8, !tbaa !5
  store ptr %4, ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !10
  store ptr %6, ptr %3, align 8, !tbaa !10
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %10, label %7

7:                                                ; preds = %2
  %8 = load i64, ptr %6, align 8, !tbaa !11
  %9 = add i64 %8, 1
  store i64 %9, ptr %6, align 8, !tbaa !11
  br label %10

10:                                               ; preds = %7, %2
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!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 = !{!"_ZTSN3rmg8internal7PendingE", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 8}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTSN3rmg8internal7Pending6SharedE", !13, i64 0, !14, i64 8}
!13 = !{!"long", !8, i64 0}
!14 = !{!"bool", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass