; LLVM IR from guanzhi/GmSSL :: src (x509_ext)

; 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 [62 x i8], align 1
@__FUNCTION__.x509_exts_add_sequence = external hidden unnamed_addr constant [23 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

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_ext_to_der_ex(i32 noundef, i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @x509_exts_add_sequence(ptr noundef %0, ptr noundef %1, i64 noundef %2, i32 noundef %3, i32 noundef %4, ptr noundef %5, i64 noundef %6) #2 {
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i64, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca ptr, align 8
  %15 = alloca i64, align 8
  %16 = alloca i64, align 8
  %17 = alloca i32, align 4
  store ptr %0, ptr %9, align 8, !tbaa !5
  store ptr %1, ptr %10, align 8, !tbaa !5
  store i64 %2, ptr %11, align 8, !tbaa !9
  store i32 %3, ptr %12, align 4, !tbaa !11
  store i32 %4, ptr %13, align 4, !tbaa !11
  store ptr %5, ptr %14, align 8, !tbaa !5
  store i64 %6, ptr %15, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #4
  %18 = load ptr, ptr %10, align 8, !tbaa !5
  %19 = load i64, ptr %18, align 8, !tbaa !9
  store i64 %19, ptr %16, align 8, !tbaa !9
  %20 = load i64, ptr %15, align 8, !tbaa !9
  %21 = icmp eq i64 %20, 0
  br i1 %21, label %22, label %23

22:                                               ; preds = %7
  store i32 0, ptr %8, align 4
  store i32 1, ptr %17, align 4
  br label %54

23:                                               ; preds = %7
  %24 = load ptr, ptr %10, align 8, !tbaa !5
  %25 = load i64, ptr %24, align 8, !tbaa !9
  %26 = load ptr, ptr %9, align 8, !tbaa !5
  %27 = getelementptr inbounds i8, ptr %26, i64 %25
  store ptr %27, ptr %9, align 8, !tbaa !5
  %28 = load i32, ptr %12, align 4, !tbaa !11
  %29 = load i32, ptr %13, align 4, !tbaa !11
  %30 = load ptr, ptr %14, align 8, !tbaa !5
  %31 = load i64, ptr %15, align 8, !tbaa !9
  %32 = call i32 @x509_ext_to_der_ex(i32 noundef %28, i32 noundef %29, ptr noundef %30, i64 noundef %31, ptr noundef null, ptr noundef %16)
  %33 = icmp ne i32 %32, 1
  br i1 %33, label %47, label %34

34:                                               ; preds = %23
  %35 = load i64, ptr %16, align 8, !tbaa !9
  %36 = load i64, ptr %11, align 8, !tbaa !9
  %37 = call i32 @asn1_length_le(i64 noundef %35, i64 noundef %36)
  %38 = icmp ne i32 %37, 1
  br i1 %38, label %47, label %39

39:                                               ; preds = %34
  %40 = load i32, ptr %12, align 4, !tbaa !11
  %41 = load i32, ptr %13, align 4, !tbaa !11
  %42 = load ptr, ptr %14, align 8, !tbaa !5
  %43 = load i64, ptr %15, align 8, !tbaa !9
  %44 = load ptr, ptr %10, align 8, !tbaa !5
  %45 = call i32 @x509_ext_to_der_ex(i32 noundef %40, i32 noundef %41, ptr noundef %42, i64 noundef %43, ptr noundef %9, ptr noundef %44)
  %46 = icmp ne i32 %45, 1
  br i1 %46, label %47, label %53

47:                                               ; preds = %39, %34, %23
  br label %48

48:                                               ; preds = %47
  %49 = load ptr, ptr @stderr, align 8, !tbaa !5
  %50 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %49, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 307, ptr noundef @__FUNCTION__.x509_exts_add_sequence) #4
  br label %51

51:                                               ; preds = %48
  br label %52

52:                                               ; preds = %51
  store i32 -1, ptr %8, align 4
  store i32 1, ptr %17, align 4
  br label %54

53:                                               ; preds = %39
  store i32 1, ptr %8, align 4
  store i32 1, ptr %17, align 4
  br label %54

54:                                               ; preds = %53, %52, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  %55 = load i32, ptr %8, align 4
  ret i32 %55
}

declare i32 @asn1_length_le(i64 noundef, i64 noundef) #3

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 = { "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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !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 [62 x i8], align 1
@__FUNCTION__.x509_exts_add_sequence = external hidden unnamed_addr constant [23 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

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_ext_to_der_ex(i32 noundef, i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @x509_exts_add_sequence(ptr noundef %0, ptr noundef %1, i64 noundef %2, i32 noundef %3, i32 noundef %4, ptr noundef %5, i64 noundef %6) local_unnamed_addr #2 {
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #4
  %10 = load i64, ptr %1, align 8, !tbaa !5
  store i64 %10, ptr %9, align 8, !tbaa !5
  %11 = icmp eq i64 %6, 0
  br i1 %11, label %23, label %12

12:                                               ; preds = %7
  %13 = getelementptr inbounds i8, ptr %0, i64 %10
  store ptr %13, ptr %8, align 8, !tbaa !9
  %14 = call i32 @x509_ext_to_der_ex(i32 noundef %3, i32 noundef %4, ptr noundef %5, i64 noundef %6, ptr noundef null, ptr noundef nonnull %9)
  %.not = icmp eq i32 %14, 1
  br i1 %.not, label %15, label %20

15:                                               ; preds = %12
  %16 = load i64, ptr %9, align 8, !tbaa !5
  %17 = call i32 @asn1_length_le(i64 noundef %16, i64 noundef %2) #4
  %.not14 = icmp eq i32 %17, 1
  br i1 %.not14, label %18, label %20

18:                                               ; preds = %15
  %19 = call i32 @x509_ext_to_der_ex(i32 noundef %3, i32 noundef %4, ptr noundef %5, i64 noundef %6, ptr noundef nonnull %8, ptr noundef nonnull %1)
  %.not15 = icmp eq i32 %19, 1
  br i1 %.not15, label %23, label %20

20:                                               ; preds = %12, %15, %18
  %21 = load ptr, ptr @stderr, align 8, !tbaa !9
  %22 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %21, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 307, ptr noundef nonnull @__FUNCTION__.x509_exts_add_sequence) #5
  br label %23

23:                                               ; preds = %18, %7, %20
  %.0 = phi i32 [ -1, %20 ], [ 0, %7 ], [ 1, %18 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #4
  ret i32 %.0
}

declare i32 @asn1_length_le(i64 noundef, i64 noundef) local_unnamed_addr #3

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 = { 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 = { "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 = !{!"long", !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}


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