; LLVM IR from masyagin1998/GCI :: src/parser (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.VARIABLE_AST = type { ptr, ptr, i64, i64, i64 }

; 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

; Function Attrs: nounwind
declare void @free(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @ident_ast_free(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @variable_ast_free(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.VARIABLE_AST, ptr %4, i32 0, i32 0
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  call void @ident_ast_free(ptr noundef %6)
  store i64 0, ptr %3, align 8, !tbaa !12
  br label %7

7:                                                ; preds = %20, %1
  %8 = load i64, ptr %3, align 8, !tbaa !12
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.VARIABLE_AST, ptr %9, i32 0, i32 2
  %11 = load i64, ptr %10, align 8, !tbaa !13
  %12 = icmp ult i64 %8, %11
  br i1 %12, label %13, label %23

13:                                               ; preds = %7
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.VARIABLE_AST, ptr %14, i32 0, i32 1
  %16 = load ptr, ptr %15, align 8, !tbaa !14
  %17 = load i64, ptr %3, align 8, !tbaa !12
  %18 = getelementptr inbounds ptr, ptr %16, i64 %17
  %19 = load ptr, ptr %18, align 8, !tbaa !5
  call void @variable_part_ast_free(ptr noundef %19)
  br label %20

20:                                               ; preds = %13
  %21 = load i64, ptr %3, align 8, !tbaa !12
  %22 = add i64 %21, 1
  store i64 %22, ptr %3, align 8, !tbaa !12
  br label %7, !llvm.loop !15

23:                                               ; preds = %7
  br label %24

24:                                               ; preds = %23
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.VARIABLE_AST, ptr %25, i32 0, i32 1
  %27 = load ptr, ptr %26, align 8, !tbaa !14
  call void @free(ptr noundef %27) #3
  %28 = load ptr, ptr %2, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.VARIABLE_AST, ptr %28, i32 0, i32 1
  store ptr null, ptr %29, align 8, !tbaa !14
  br label %30

30:                                               ; preds = %24
  br label %31

31:                                               ; preds = %30
  br label %32

32:                                               ; preds = %31
  %33 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %33) #3
  store ptr null, ptr %2, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %32
  br label %35

35:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @variable_part_ast_free(ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 0}
!10 = !{!"VARIABLE_AST", !6, i64 0, !6, i64 8, !11, i64 16, !11, i64 24, !11, i64 32}
!11 = !{!"long", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !11, i64 16}
!14 = !{!10, !6, i64 8}
!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: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @ident_ast_free(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @variable_ast_free(ptr nocapture noundef %0) local_unnamed_addr #1 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  tail call void @ident_ast_free(ptr noundef %2)
  %3 = getelementptr inbounds i8, ptr %0, i64 16
  %4 = load i64, ptr %3, align 8, !tbaa !11
  %.not = icmp eq i64 %4, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  br label %6

6:                                                ; preds = %.lr.ph, %6
  %.08 = phi i64 [ 0, %.lr.ph ], [ %10, %6 ]
  %7 = load ptr, ptr %5, align 8, !tbaa !12
  %8 = getelementptr inbounds ptr, ptr %7, i64 %.08
  %9 = load ptr, ptr %8, align 8, !tbaa !13
  tail call void @variable_part_ast_free(ptr noundef %9)
  %10 = add nuw i64 %.08, 1
  %11 = load i64, ptr %3, align 8, !tbaa !11
  %12 = icmp ult i64 %10, %11
  br i1 %12, label %6, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %6, %1
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  tail call void @free(ptr noundef %14) #2
  tail call void @free(ptr noundef nonnull %0) #2
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @variable_part_ast_free(ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 0}
!6 = !{!"VARIABLE_AST", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 24, !10, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!6, !7, i64 8}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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