; LLVM IR from guanzhi/GmSSL :: src (x509_alg)

; 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.ASN1_OID_INFO = type { i32, ptr, ptr, i64, i32, ptr }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [62 x i8], align 1
@x509_public_key_algors = external hidden constant [2 x %struct.ASN1_OID_INFO], align 16
@__FUNCTION__.x509_public_key_algor_from_der = external hidden unnamed_addr constant [31 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: nounwind
declare i32 @fprintf(ptr 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 i32 @asn1_type_from_der(i32 noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

declare i32 @asn1_oid_info_from_der(ptr noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) #2

declare i32 @asn1_length_is_zero(i64 noundef) #2

declare i32 @asn1_null_from_der(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @x509_public_key_algor_from_der(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #3 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i64, align 8
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = load ptr, ptr %9, align 8, !tbaa !5
  %17 = call i32 @asn1_type_from_der(i32 noundef 48, ptr noundef %11, ptr noundef %12, ptr noundef %15, ptr noundef %16)
  store i32 %17, ptr %10, align 4, !tbaa !9
  %18 = icmp ne i32 %17, 1
  br i1 %18, label %19, label %30

19:                                               ; preds = %4
  %20 = load i32, ptr %10, align 4, !tbaa !9
  %21 = icmp slt i32 %20, 0
  br i1 %21, label %22, label %28

22:                                               ; preds = %19
  br label %23

23:                                               ; preds = %22
  %24 = load ptr, ptr @stderr, align 8, !tbaa !5
  %25 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %24, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 630, ptr noundef @__FUNCTION__.x509_public_key_algor_from_der) #4
  br label %26

26:                                               ; preds = %23
  br label %27

27:                                               ; preds = %26
  br label %28

28:                                               ; preds = %27, %19
  %29 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %29, ptr %5, align 4
  store i32 1, ptr %14, align 4
  br label %83

30:                                               ; preds = %4
  %31 = call i32 @asn1_oid_info_from_der(ptr noundef %13, ptr noundef @x509_public_key_algors, i64 noundef 2, ptr noundef %11, ptr noundef %12)
  %32 = icmp ne i32 %31, 1
  br i1 %32, label %33, label %39

33:                                               ; preds = %30
  br label %34

34:                                               ; preds = %33
  %35 = load ptr, ptr @stderr, align 8, !tbaa !5
  %36 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %35, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 635, ptr noundef @__FUNCTION__.x509_public_key_algor_from_der) #4
  br label %37

37:                                               ; preds = %34
  br label %38

38:                                               ; preds = %37
  store i32 -1, ptr %5, align 4
  store i32 1, ptr %14, align 4
  br label %83

39:                                               ; preds = %30
  %40 = load ptr, ptr %13, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.ASN1_OID_INFO, ptr %40, i32 0, i32 0
  %42 = load i32, ptr %41, align 8, !tbaa !11
  %43 = load ptr, ptr %6, align 8, !tbaa !5
  store i32 %42, ptr %43, align 4, !tbaa !9
  %44 = load ptr, ptr %6, align 8, !tbaa !5
  %45 = load i32, ptr %44, align 4, !tbaa !9
  switch i32 %45, label %76 [
    i32 18, label %46
    i32 115, label %61
  ]

46:                                               ; preds = %39
  %47 = load ptr, ptr %7, align 8, !tbaa !5
  %48 = call i32 @ec_named_curve_from_der(ptr noundef %47, ptr noundef %11, ptr noundef %12)
  %49 = icmp ne i32 %48, 1
  br i1 %49, label %54, label %50

50:                                               ; preds = %46
  %51 = load i64, ptr %12, align 8, !tbaa !14
  %52 = call i32 @asn1_length_is_zero(i64 noundef %51)
  %53 = icmp ne i32 %52, 1
  br i1 %53, label %54, label %60

54:                                               ; preds = %50, %46
  br label %55

55:                                               ; preds = %54
  %56 = load ptr, ptr @stderr, align 8, !tbaa !5
  %57 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %56, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 644, ptr noundef @__FUNCTION__.x509_public_key_algor_from_der) #4
  br label %58

58:                                               ; preds = %55
  br label %59

59:                                               ; preds = %58
  store i32 -1, ptr %5, align 4
  store i32 1, ptr %14, align 4
  br label %83

60:                                               ; preds = %50
  br label %82

61:                                               ; preds = %39
  %62 = call i32 @asn1_null_from_der(ptr noundef %11, ptr noundef %12)
  %63 = load ptr, ptr %7, align 8, !tbaa !5
  store i32 %62, ptr %63, align 4, !tbaa !9
  %64 = icmp slt i32 %62, 0
  br i1 %64, label %69, label %65

65:                                               ; preds = %61
  %66 = load i64, ptr %12, align 8, !tbaa !14
  %67 = call i32 @asn1_length_is_zero(i64 noundef %66)
  %68 = icmp ne i32 %67, 1
  br i1 %68, label %69, label %75

69:                                               ; preds = %65, %61
  br label %70

70:                                               ; preds = %69
  %71 = load ptr, ptr @stderr, align 8, !tbaa !5
  %72 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %71, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 651, ptr noundef @__FUNCTION__.x509_public_key_algor_from_der) #4
  br label %73

73:                                               ; preds = %70
  br label %74

74:                                               ; preds = %73
  store i32 -1, ptr %5, align 4
  store i32 1, ptr %14, align 4
  br label %83

75:                                               ; preds = %65
  br label %82

76:                                               ; preds = %39
  br label %77

77:                                               ; preds = %76
  %78 = load ptr, ptr @stderr, align 8, !tbaa !5
  %79 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %78, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 656, ptr noundef @__FUNCTION__.x509_public_key_algor_from_der) #4
  br label %80

80:                                               ; preds = %77
  br label %81

81:                                               ; preds = %80
  store i32 -1, ptr %5, align 4
  store i32 1, ptr %14, align 4
  br label %83

82:                                               ; preds = %75, %60
  store i32 1, ptr %5, align 4
  store i32 1, ptr %14, align 4
  br label %83

83:                                               ; preds = %82, %81, %74, %59, %38, %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  %84 = load i32, ptr %5, align 4
  ret i32 %84
}

declare i32 @ec_named_curve_from_der(ptr noundef, ptr noundef, 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 = { "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 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 #4 = { 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, !10, i64 0}
!12 = !{!"", !10, i64 0, !6, i64 8, !6, i64 16, !13, i64 24, !10, i64 32, !6, i64 40}
!13 = !{!"long", !7, i64 0}
!14 = !{!13, !13, 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"

%struct.ASN1_OID_INFO = type { i32, ptr, ptr, i64, i32, ptr }

@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 [62 x i8], align 1
@x509_public_key_algors = external hidden constant [2 x %struct.ASN1_OID_INFO], align 16
@__FUNCTION__.x509_public_key_algor_from_der = external hidden unnamed_addr constant [31 x i8], align 1

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

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

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

declare i32 @asn1_type_from_der(i32 noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

declare i32 @asn1_oid_info_from_der(ptr noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

declare i32 @asn1_length_is_zero(i64 noundef) local_unnamed_addr #2

declare i32 @asn1_null_from_der(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local i32 @x509_public_key_algor_from_der(ptr nocapture noundef writeonly %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #3 {
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  %8 = call i32 @asn1_type_from_der(i32 noundef 48, ptr noundef nonnull %5, ptr noundef nonnull %6, ptr noundef %2, ptr noundef %3) #4
  %.not = icmp eq i32 %8, 1
  br i1 %.not, label %11, label %9

9:                                                ; preds = %4
  %10 = icmp slt i32 %8, 0
  br i1 %10, label %.sink.split, label %29

11:                                               ; preds = %4
  %12 = call i32 @asn1_oid_info_from_der(ptr noundef nonnull %7, ptr noundef nonnull @x509_public_key_algors, i64 noundef 2, ptr noundef nonnull %5, ptr noundef nonnull %6) #4
  %.not9 = icmp eq i32 %12, 1
  br i1 %.not9, label %13, label %.sink.split

13:                                               ; preds = %11
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = load i32, ptr %14, align 8, !tbaa !9
  store i32 %15, ptr %0, align 4, !tbaa !13
  switch i32 %15, label %.sink.split [
    i32 18, label %16
    i32 115, label %21
  ]

16:                                               ; preds = %13
  %17 = call i32 @ec_named_curve_from_der(ptr noundef %1, ptr noundef nonnull %5, ptr noundef nonnull %6) #4
  %.not11 = icmp eq i32 %17, 1
  br i1 %.not11, label %18, label %.sink.split

18:                                               ; preds = %16
  %19 = load i64, ptr %6, align 8, !tbaa !14
  %20 = call i32 @asn1_length_is_zero(i64 noundef %19) #4
  %.not12 = icmp eq i32 %20, 1
  br i1 %.not12, label %29, label %.sink.split

21:                                               ; preds = %13
  %22 = call i32 @asn1_null_from_der(ptr noundef nonnull %5, ptr noundef nonnull %6) #4
  store i32 %22, ptr %1, align 4, !tbaa !13
  %23 = icmp slt i32 %22, 0
  br i1 %23, label %.sink.split, label %24

24:                                               ; preds = %21
  %25 = load i64, ptr %6, align 8, !tbaa !14
  %26 = call i32 @asn1_length_is_zero(i64 noundef %25) #4
  %.not10 = icmp eq i32 %26, 1
  br i1 %.not10, label %29, label %.sink.split

.sink.split:                                      ; preds = %13, %24, %21, %18, %16, %11, %9
  %.sink13 = phi i32 [ 630, %9 ], [ 635, %11 ], [ 644, %16 ], [ 644, %18 ], [ 651, %21 ], [ 651, %24 ], [ 656, %13 ]
  %.0.ph = phi i32 [ %8, %9 ], [ -1, %11 ], [ -1, %16 ], [ -1, %18 ], [ -1, %21 ], [ -1, %24 ], [ -1, %13 ]
  %27 = load ptr, ptr @stderr, align 8, !tbaa !5
  %28 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %27, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink13, ptr noundef nonnull @__FUNCTION__.x509_public_key_algor_from_der) #5
  br label %29

29:                                               ; preds = %.sink.split, %18, %24, %9
  %.0 = phi i32 [ %8, %9 ], [ 1, %24 ], [ 1, %18 ], [ %.0.ph, %.sink.split ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  ret i32 %.0
}

declare i32 @ec_named_curve_from_der(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { "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 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 #4 = { nounwind }
attributes #5 = { 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, !11, i64 0}
!10 = !{!"", !11, i64 0, !6, i64 8, !6, i64 16, !12, i64 24, !11, i64 32, !6, i64 40}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!11, !11, i64 0}
!14 = !{!12, !12, i64 0}


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