; LLVM IR from ponylang/ponyc :: src/libponyrt/gc (gc)

; 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.pony_ctx_t = type { ptr, ptr, ptr, ptr, ptr, %struct.actormap_t, ptr, i64, %struct.ponyint_serialise_t, ptr, ptr, ptr }
%struct.actormap_t = type { %struct.hashmap_t }
%struct.hashmap_t = type { i64, i64, ptr, ptr }
%struct.ponyint_serialise_t = type { %struct.hashmap_t }

; Function Attrs: nounwind uwtable
declare dso_local ptr @ponyint_gcstack_pop(ptr noundef, ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local void @ponyint_gc_discardstack(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  br label %5

5:                                                ; preds = %10, %1
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.pony_ctx_t, ptr %6, i32 0, i32 4
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %23

10:                                               ; preds = %5
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.pony_ctx_t, ptr %11, i32 0, i32 4
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = call ptr @ponyint_gcstack_pop(ptr noundef %13, ptr noundef %3)
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.pony_ctx_t, ptr %15, i32 0, i32 4
  store ptr %14, ptr %16, align 8, !tbaa !9
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.pony_ctx_t, ptr %17, i32 0, i32 4
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  %20 = call ptr @ponyint_gcstack_pop(ptr noundef %19, ptr noundef %4)
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.pony_ctx_t, ptr %21, i32 0, i32 4
  store ptr %20, ptr %22, align 8, !tbaa !9
  br label %5, !llvm.loop !15

23:                                               ; preds = %5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret void
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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/C++ TBAA"}
!9 = !{!10, !6, i64 32}
!10 = !{!"pony_ctx_t", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !11, i64 40, !6, i64 72, !13, i64 80, !14, i64 88, !6, i64 120, !6, i64 128, !6, i64 136}
!11 = !{!"actormap_t", !12, i64 0}
!12 = !{!"hashmap_t", !13, i64 0, !13, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!"long", !7, i64 0}
!14 = !{!"ponyint_serialise_t", !12, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; 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: nounwind uwtable
declare dso_local ptr @ponyint_gcstack_pop(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local void @ponyint_gc_discardstack(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %4 = getelementptr inbounds i8, ptr %0, i64 32
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %.not5 = icmp eq ptr %5, null
  br i1 %.not5, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %6 = phi ptr [ %8, %.lr.ph ], [ %5, %1 ]
  %7 = call ptr @ponyint_gcstack_pop(ptr noundef nonnull %6, ptr noundef nonnull %2)
  store ptr %7, ptr %4, align 8, !tbaa !5
  %8 = call ptr @ponyint_gcstack_pop(ptr noundef %7, ptr noundef nonnull %3)
  store ptr %8, ptr %4, align 8, !tbaa !5
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !14

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #2
  ret void
}

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 32}
!6 = !{!"pony_ctx_t", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !10, i64 40, !7, i64 72, !12, i64 80, !13, i64 88, !7, i64 120, !7, i64 128, !7, i64 136}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"actormap_t", !11, i64 0}
!11 = !{!"hashmap_t", !12, i64 0, !12, i64 8, !7, i64 16, !7, i64 24}
!12 = !{!"long", !8, i64 0}
!13 = !{!"ponyint_serialise_t", !11, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass