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

; 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.ast_t = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i8 }

@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [71 x i8], align 1
@__func__.ast_previous = external hidden unnamed_addr constant [13 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare void @ponyint_assert_fail(ptr noundef, ptr noundef, i64 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @hasparent(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local ptr @ast_previous(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  br label %9

8:                                                ; preds = %1
  call void @ponyint_assert_fail(ptr noundef @.str, ptr noundef @.str.1, i64 noundef 1083, ptr noundef @__func__.ast_previous)
  br label %9

9:                                                ; preds = %8, %7
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = call zeroext i1 @hasparent(ptr noundef %10)
  br i1 %11, label %12, label %13

12:                                               ; preds = %9
  br label %14

13:                                               ; preds = %9
  call void @ponyint_assert_fail(ptr noundef @.str.12, ptr noundef @.str.1, i64 noundef 1084, ptr noundef @__func__.ast_previous)
  br label %14

14:                                               ; preds = %13, %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store ptr null, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.ast_t, ptr %15, i32 0, i32 3
  %17 = load ptr, ptr %16, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.ast_t, ptr %17, i32 0, i32 4
  %19 = load ptr, ptr %18, align 8, !tbaa !13
  store ptr %19, ptr %4, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %24, %14
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = icmp ne ptr %21, %22
  br i1 %23, label %24, label %29

24:                                               ; preds = %20
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %25, ptr %3, align 8, !tbaa !5
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.ast_t, ptr %26, i32 0, i32 5
  %28 = load ptr, ptr %27, align 8, !tbaa !14
  store ptr %28, ptr %4, align 8, !tbaa !5
  br label %20, !llvm.loop !15

29:                                               ; preds = %20
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret ptr %30
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 = !{!10, !6, i64 24}
!10 = !{!"ast_t", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !11, i64 56, !12, i64 60}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_Bool", !7, i64 0}
!13 = !{!10, !6, i64 32}
!14 = !{!10, !6, i64 40}
!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"

@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [71 x i8], align 1
@__func__.ast_previous = external hidden unnamed_addr constant [13 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [15 x i8], align 1

declare void @ponyint_assert_fail(ptr noundef, ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @hasparent(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local ptr @ast_previous(ptr noundef %0) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %2, label %3

2:                                                ; preds = %1
  tail call void @ponyint_assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i64 noundef 1083, ptr noundef nonnull @__func__.ast_previous) #2
  br label %3

3:                                                ; preds = %1, %2
  %4 = tail call zeroext i1 @hasparent(ptr noundef %0)
  br i1 %4, label %6, label %5

5:                                                ; preds = %3
  tail call void @ponyint_assert_fail(ptr noundef nonnull @.str.12, ptr noundef nonnull @.str.1, i64 noundef 1084, ptr noundef nonnull @__func__.ast_previous) #2
  br label %6

6:                                                ; preds = %3, %5
  %7 = getelementptr inbounds i8, ptr %0, i64 24
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %8, i64 32
  br label %10

10:                                               ; preds = %10, %6
  %.08 = phi ptr [ null, %6 ], [ %.0, %10 ]
  %.0.in = phi ptr [ %9, %6 ], [ %11, %10 ]
  %.0 = load ptr, ptr %.0.in, align 8, !tbaa !12
  %.not9 = icmp eq ptr %.0, %0
  %11 = getelementptr inbounds i8, ptr %.0, i64 40
  br i1 %.not9, label %12, label %10, !llvm.loop !13

12:                                               ; preds = %10
  ret ptr %.08
}

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 = !{!6, !7, i64 24}
!6 = !{!"ast_t", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !10, i64 56, !11, i64 60}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_Bool", !8, i64 0}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass