; LLVM IR from ponylang/ponyc :: src/libponyc/type (subtype)

; 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"

declare i32 @ast_id(ptr noundef) #0

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

declare ptr @ast_child(ptr noundef) #0

declare ptr @ast_sibling(ptr noundef) #0

; 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 zeroext i1 @contains_dontcare(ptr noundef %0) #2 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = call i32 @ast_id(ptr noundef %6)
  switch i32 %7, label %24 [
    i32 156, label %8
    i32 150, label %9
  ]

8:                                                ; preds = %1
  store i1 true, ptr %2, align 1
  br label %26

9:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = call ptr @ast_child(ptr noundef %10)
  store ptr %11, ptr %4, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %19, %9
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %15, label %22

15:                                               ; preds = %12
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call zeroext i1 @contains_dontcare(ptr noundef %16)
  br i1 %17, label %18, label %19

18:                                               ; preds = %15
  store i1 true, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %23

19:                                               ; preds = %15
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = call ptr @ast_sibling(ptr noundef %20)
  store ptr %21, ptr %4, align 8, !tbaa !5
  br label %12, !llvm.loop !9

22:                                               ; preds = %12
  store i1 false, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %23

23:                                               ; preds = %22, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %26

24:                                               ; preds = %1
  br label %25

25:                                               ; preds = %24
  store i1 false, ptr %2, align 1
  br label %26

26:                                               ; preds = %25, %23, %8
  %27 = load i1, ptr %2, align 1
  ret i1 %27
}

attributes #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 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 = { 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 = distinct !{!9, !10}
!10 = !{!"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"

declare i32 @ast_id(ptr noundef) local_unnamed_addr #0

declare ptr @ast_child(ptr noundef) local_unnamed_addr #0

declare ptr @ast_sibling(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @contains_dontcare(ptr noundef %0) local_unnamed_addr #1 {
  %2 = tail call i32 @ast_id(ptr noundef %0) #2
  switch i32 %2, label %8 [
    i32 156, label %.loopexit
    i32 150, label %3
  ]

3:                                                ; preds = %1
  %4 = tail call ptr @ast_child(ptr noundef %0) #2
  %.not.not7 = icmp eq ptr %4, null
  br i1 %.not.not7, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %3, %6
  %.08 = phi ptr [ %7, %6 ], [ %4, %3 ]
  %5 = tail call zeroext i1 @contains_dontcare(ptr noundef nonnull %.08)
  br i1 %5, label %.loopexit, label %6

6:                                                ; preds = %.lr.ph
  %7 = tail call ptr @ast_sibling(ptr noundef nonnull %.08) #2
  %.not.not = icmp eq ptr %7, null
  br i1 %.not.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

8:                                                ; preds = %1
  br label %.loopexit

.loopexit:                                        ; preds = %6, %.lr.ph, %3, %1, %8
  %.1 = phi i1 [ false, %8 ], [ true, %1 ], [ false, %3 ], [ %5, %.lr.ph ], [ %5, %6 ]
  ret i1 %.1
}

attributes #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 = { 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 }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass