; LLVM IR from guanzhi/GmSSL :: src (asn1)

; 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"

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [58 x i8], align 1
@__FUNCTION__.asn1_ia5_string_from_der_ex = external hidden unnamed_addr constant [28 x i8], align 1

; Function Attrs: nounwind
declare i32 @fprintf(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
declare dso_local i32 @asn1_type_from_der(i32 noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @asn1_string_is_ia5_string(ptr noundef, i64 noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @asn1_ia5_string_from_der_ex(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #2 {
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store i32 %0, ptr %7, align 4, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !9
  store ptr %2, ptr %9, align 8, !tbaa !9
  store ptr %3, ptr %10, align 8, !tbaa !9
  store ptr %4, ptr %11, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %14 = load i32, ptr %7, align 4, !tbaa !5
  %15 = load ptr, ptr %8, align 8, !tbaa !9
  %16 = load ptr, ptr %9, align 8, !tbaa !9
  %17 = load ptr, ptr %10, align 8, !tbaa !9
  %18 = load ptr, ptr %11, align 8, !tbaa !9
  %19 = call i32 @asn1_type_from_der(i32 noundef %14, ptr noundef %15, ptr noundef %16, ptr noundef %17, ptr noundef %18)
  store i32 %19, ptr %12, align 4, !tbaa !5
  %20 = icmp ne i32 %19, 1
  br i1 %20, label %21, label %32

21:                                               ; preds = %5
  %22 = load i32, ptr %12, align 4, !tbaa !5
  %23 = icmp slt i32 %22, 0
  br i1 %23, label %24, label %30

24:                                               ; preds = %21
  br label %25

25:                                               ; preds = %24
  %26 = load ptr, ptr @stderr, align 8, !tbaa !9
  %27 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %26, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1468, ptr noundef @__FUNCTION__.asn1_ia5_string_from_der_ex) #3
  br label %28

28:                                               ; preds = %25
  br label %29

29:                                               ; preds = %28
  br label %30

30:                                               ; preds = %29, %21
  %31 = load i32, ptr %12, align 4, !tbaa !5
  store i32 %31, ptr %6, align 4
  store i32 1, ptr %13, align 4
  br label %60

32:                                               ; preds = %5
  %33 = load ptr, ptr %8, align 8, !tbaa !9
  %34 = load ptr, ptr %33, align 8, !tbaa !9
  %35 = icmp eq ptr %34, null
  br i1 %35, label %40, label %36

36:                                               ; preds = %32
  %37 = load ptr, ptr %9, align 8, !tbaa !9
  %38 = load i64, ptr %37, align 8, !tbaa !11
  %39 = icmp eq i64 %38, 0
  br i1 %39, label %40, label %46

40:                                               ; preds = %36, %32
  br label %41

41:                                               ; preds = %40
  %42 = load ptr, ptr @stderr, align 8, !tbaa !9
  %43 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %42, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1472, ptr noundef @__FUNCTION__.asn1_ia5_string_from_der_ex) #3
  br label %44

44:                                               ; preds = %41
  br label %45

45:                                               ; preds = %44
  store i32 -1, ptr %6, align 4
  store i32 1, ptr %13, align 4
  br label %60

46:                                               ; preds = %36
  %47 = load ptr, ptr %8, align 8, !tbaa !9
  %48 = load ptr, ptr %47, align 8, !tbaa !9
  %49 = load ptr, ptr %9, align 8, !tbaa !9
  %50 = load i64, ptr %49, align 8, !tbaa !11
  %51 = call i32 @asn1_string_is_ia5_string(ptr noundef %48, i64 noundef %50)
  %52 = icmp ne i32 %51, 1
  br i1 %52, label %53, label %59

53:                                               ; preds = %46
  br label %54

54:                                               ; preds = %53
  %55 = load ptr, ptr @stderr, align 8, !tbaa !9
  %56 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %55, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1476, ptr noundef @__FUNCTION__.asn1_ia5_string_from_der_ex) #3
  br label %57

57:                                               ; preds = %54
  br label %58

58:                                               ; preds = %57
  store i32 -1, ptr %6, align 4
  store i32 1, ptr %13, align 4
  br label %60

59:                                               ; preds = %46
  store i32 1, ptr %6, align 4
  store i32 1, ptr %13, align 4
  br label %60

60:                                               ; preds = %59, %58, %45, %30
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  %61 = load i32, ptr %6, align 4
  ret i32 %61
}

attributes #0 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [58 x i8], align 1
@__FUNCTION__.asn1_ia5_string_from_der_ex = external hidden unnamed_addr constant [28 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @asn1_type_from_der(i32 noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @asn1_string_is_ia5_string(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @asn1_ia5_string_from_der_ex(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) local_unnamed_addr #1 {
  %6 = tail call i32 @asn1_type_from_der(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4)
  %.not = icmp eq i32 %6, 1
  br i1 %.not, label %9, label %7

7:                                                ; preds = %5
  %8 = icmp slt i32 %6, 0
  br i1 %8, label %.sink.split, label %19

9:                                                ; preds = %5
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = icmp eq ptr %10, null
  br i1 %11, label %.sink.split, label %12

12:                                               ; preds = %9
  %13 = load i64, ptr %2, align 8, !tbaa !9
  %14 = icmp eq i64 %13, 0
  br i1 %14, label %.sink.split, label %15

15:                                               ; preds = %12
  %16 = tail call i32 @asn1_string_is_ia5_string(ptr noundef nonnull %10, i64 noundef %13)
  %.not14 = icmp eq i32 %16, 1
  br i1 %.not14, label %19, label %.sink.split

.sink.split:                                      ; preds = %15, %12, %9, %7
  %.sink15 = phi i32 [ 1468, %7 ], [ 1472, %9 ], [ 1472, %12 ], [ 1476, %15 ]
  %.0.ph = phi i32 [ %6, %7 ], [ -1, %9 ], [ -1, %12 ], [ -1, %15 ]
  %17 = load ptr, ptr @stderr, align 8, !tbaa !5
  %18 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink15, ptr noundef nonnull @__FUNCTION__.asn1_ia5_string_from_der_ex) #2
  br label %19

19:                                               ; preds = %.sink.split, %15, %7
  %.0 = phi i32 [ %6, %7 ], [ 1, %15 ], [ %.0.ph, %.sink.split ]
  ret i32 %.0
}

attributes #0 = { nofree 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 #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 = { cold 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 = !{!"long", !7, i64 0}


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