; LLVM IR from specinfo-ua/UAPKI :: library/uapkif/src/asn1 (asn1-utils)

; 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.BIT_STRING_s = type { ptr, i32, i32, %struct.asn_struct_ctx_s }
%struct.asn_struct_ctx_s = type { i16, i16, i32, ptr, i64 }

@.str = external hidden unnamed_addr constant [25 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

declare void @stacktrace_create(ptr noundef, i64 noundef, i32 noundef, ptr noundef) #1

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

declare void @stacktrace_add(ptr noundef, i64 noundef, i32 noundef) #1

declare ptr @ba_alloc_from_uint8(ptr noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @asn_BITSTRING2ba(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %11, label %9

9:                                                ; preds = %6
  store i32 2, ptr %5, align 4, !tbaa !9
  %10 = load i32, ptr %5, align 4, !tbaa !9
  call void @stacktrace_create(ptr noundef @.str, i64 noundef 1047, i32 noundef %10, ptr noundef null)
  br label %38

11:                                               ; preds = %6
  br label %12

12:                                               ; preds = %11
  br label %13

13:                                               ; preds = %12
  br label %14

14:                                               ; preds = %13
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %19, label %17

17:                                               ; preds = %14
  store i32 2, ptr %5, align 4, !tbaa !9
  %18 = load i32, ptr %5, align 4, !tbaa !9
  call void @stacktrace_create(ptr noundef @.str, i64 noundef 1048, i32 noundef %18, ptr noundef null)
  br label %38

19:                                               ; preds = %14
  br label %20

20:                                               ; preds = %19
  br label %21

21:                                               ; preds = %20
  br label %22

22:                                               ; preds = %21
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.BIT_STRING_s, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !11
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.BIT_STRING_s, ptr %26, i32 0, i32 1
  %28 = load i32, ptr %27, align 8, !tbaa !16
  %29 = sext i32 %28 to i64
  %30 = call ptr @ba_alloc_from_uint8(ptr noundef %25, i64 noundef %29)
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %30, ptr %31, align 8, !tbaa !5
  %32 = icmp eq ptr null, %30
  br i1 %32, label %33, label %35

33:                                               ; preds = %22
  store i32 2, ptr %5, align 4, !tbaa !9
  %34 = load i32, ptr %5, align 4, !tbaa !9
  call void @stacktrace_add(ptr noundef @.str, i64 noundef 1050, i32 noundef %34)
  br label %38

35:                                               ; preds = %22
  br label %36

36:                                               ; preds = %35
  br label %37

37:                                               ; preds = %36
  br label %38

38:                                               ; preds = %37, %33, %17, %9
  %39 = load i32, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 %39
}

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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"BIT_STRING_s", !6, i64 0, !10, i64 8, !10, i64 12, !13, i64 16}
!13 = !{!"asn_struct_ctx_s", !14, i64 0, !14, i64 2, !10, i64 4, !6, i64 8, !15, i64 16}
!14 = !{!"short", !7, i64 0}
!15 = !{!"long", !7, i64 0}
!16 = !{!12, !10, i64 8}


; 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 [25 x i8], align 1

declare void @stacktrace_create(ptr noundef, i64 noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

declare void @stacktrace_add(ptr noundef, i64 noundef, i32 noundef) local_unnamed_addr #0

declare ptr @ba_alloc_from_uint8(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 3) i32 @asn_BITSTRING2ba(ptr noundef readonly %0, ptr noundef writeonly %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %4

3:                                                ; preds = %2
  tail call void @stacktrace_create(ptr noundef nonnull @.str, i64 noundef 1047, i32 noundef 2, ptr noundef null) #2
  br label %14

4:                                                ; preds = %2
  %.not10 = icmp eq ptr %1, null
  br i1 %.not10, label %5, label %6

5:                                                ; preds = %4
  tail call void @stacktrace_create(ptr noundef nonnull @.str, i64 noundef 1048, i32 noundef 2, ptr noundef null) #2
  br label %14

6:                                                ; preds = %4
  %7 = load ptr, ptr %0, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  %9 = load i32, ptr %8, align 8, !tbaa !14
  %10 = sext i32 %9 to i64
  %11 = tail call ptr @ba_alloc_from_uint8(ptr noundef %7, i64 noundef %10) #2
  store ptr %11, ptr %1, align 8, !tbaa !15
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %6
  tail call void @stacktrace_add(ptr noundef nonnull @.str, i64 noundef 1050, i32 noundef 2) #2
  br label %14

14:                                               ; preds = %6, %13, %5, %3
  %.0 = phi i32 [ 2, %13 ], [ 0, %6 ], [ 2, %5 ], [ 2, %3 ]
  ret i32 %.0
}

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 0}
!6 = !{!"BIT_STRING_s", !7, i64 0, !10, i64 8, !10, i64 12, !11, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"asn_struct_ctx_s", !12, i64 0, !12, i64 2, !10, i64 4, !7, i64 8, !13, i64 16}
!12 = !{!"short", !8, i64 0}
!13 = !{!"long", !8, i64 0}
!14 = !{!6, !10, i64 8}
!15 = !{!7, !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass