; LLVM IR from guanzhi/GmSSL :: src (x509_cer)

; 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.3 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [62 x i8], align 1
@__FUNCTION__.x509_name_check = external hidden unnamed_addr constant [16 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_nonempty_type_from_der(i32 noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_rdn_check(ptr noundef, i64 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local i32 @x509_name_check(ptr noundef %0, i64 noundef %1) #3 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %9 = load i64, ptr %5, align 8, !tbaa !9
  %10 = icmp eq i64 %9, 0
  br i1 %10, label %11, label %12

11:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %38

12:                                               ; preds = %2
  br label %13

13:                                               ; preds = %36, %12
  %14 = load i64, ptr %5, align 8, !tbaa !9
  %15 = icmp ne i64 %14, 0
  br i1 %15, label %16, label %37

16:                                               ; preds = %13
  %17 = call i32 @asn1_nonempty_type_from_der(i32 noundef 49, ptr noundef %6, ptr noundef %7, ptr noundef %4, ptr noundef %5)
  %18 = icmp ne i32 %17, 1
  br i1 %18, label %19, label %25

19:                                               ; preds = %16
  br label %20

20:                                               ; preds = %19
  %21 = load ptr, ptr @stderr, align 8, !tbaa !5
  %22 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %21, ptr noundef @.str.3, ptr noundef @.str.4, i32 noundef 704, ptr noundef @__FUNCTION__.x509_name_check) #4
  br label %23

23:                                               ; preds = %20
  br label %24

24:                                               ; preds = %23
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %38

25:                                               ; preds = %16
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = load i64, ptr %7, align 8, !tbaa !9
  %28 = call i32 @x509_rdn_check(ptr noundef %26, i64 noundef %27)
  %29 = icmp ne i32 %28, 1
  br i1 %29, label %30, label %36

30:                                               ; preds = %25
  br label %31

31:                                               ; preds = %30
  %32 = load ptr, ptr @stderr, align 8, !tbaa !5
  %33 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %32, ptr noundef @.str.3, ptr noundef @.str.4, i32 noundef 708, ptr noundef @__FUNCTION__.x509_name_check) #4
  br label %34

34:                                               ; preds = %31
  br label %35

35:                                               ; preds = %34
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %38

36:                                               ; preds = %25
  br label %13, !llvm.loop !11

37:                                               ; preds = %13
  store i32 1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %38

38:                                               ; preds = %37, %35, %24, %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  %39 = load i32, ptr %3, align 4
  ret i32 %39
}

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 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str.3 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [62 x i8], align 1
@__FUNCTION__.x509_name_check = external hidden unnamed_addr constant [16 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_nonempty_type_from_der(i32 noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_rdn_check(ptr noundef, i64 noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @x509_name_check(ptr noundef %0, i64 noundef %1) local_unnamed_addr #3 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %7 = icmp eq i64 %1, 0
  br i1 %7, label %.loopexit, label %.preheader

thread-pre-split:                                 ; preds = %9
  %.pr = load i64, ptr %4, align 8, !tbaa !9
  %.not = icmp eq i64 %.pr, 0
  br i1 %.not, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %2, %thread-pre-split
  %8 = call i32 @asn1_nonempty_type_from_der(i32 noundef 49, ptr noundef nonnull %5, ptr noundef nonnull %6, ptr noundef nonnull %3, ptr noundef nonnull %4) #4
  %.not1 = icmp eq i32 %8, 1
  br i1 %.not1, label %9, label %.loopexit.sink.split

9:                                                ; preds = %.preheader
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = load i64, ptr %6, align 8, !tbaa !9
  %12 = call i32 @x509_rdn_check(ptr noundef %10, i64 noundef %11)
  %.not2 = icmp eq i32 %12, 1
  br i1 %.not2, label %thread-pre-split, label %.loopexit.sink.split, !llvm.loop !11

.loopexit.sink.split:                             ; preds = %9, %.preheader
  %.sink3 = phi i32 [ 704, %.preheader ], [ 708, %9 ]
  %13 = load ptr, ptr @stderr, align 8, !tbaa !5
  %14 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %13, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.4, i32 noundef %.sink3, ptr noundef nonnull @__FUNCTION__.x509_name_check) #5
  br label %.loopexit

.loopexit:                                        ; preds = %thread-pre-split, %.loopexit.sink.split, %2
  %.0 = phi i32 [ 0, %2 ], [ -1, %.loopexit.sink.split ], [ 1, %thread-pre-split ]
  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
}

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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass