; 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_certs_get_cert_by_subject = 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

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_name_equ(ptr noundef, i64 noundef, ptr noundef, i64 noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_cert_get_subject(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_cert_from_der(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @x509_certs_get_cert_by_subject(ptr noundef %0, i64 noundef %1, ptr noundef %2, i64 noundef %3, ptr noundef %4, ptr noundef %5) #2 {
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i64, align 8
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca ptr, align 8
  %15 = alloca i64, align 8
  %16 = alloca i32, align 4
  store ptr %0, ptr %8, align 8, !tbaa !5
  store i64 %1, ptr %9, align 8, !tbaa !9
  store ptr %2, ptr %10, align 8, !tbaa !5
  store i64 %3, ptr %11, align 8, !tbaa !9
  store ptr %4, ptr %12, align 8, !tbaa !5
  store ptr %5, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #3
  br label %17

17:                                               ; preds = %52, %6
  %18 = load i64, ptr %9, align 8, !tbaa !9
  %19 = icmp ne i64 %18, 0
  br i1 %19, label %20, label %53

20:                                               ; preds = %17
  %21 = load ptr, ptr %12, align 8, !tbaa !5
  %22 = load ptr, ptr %13, align 8, !tbaa !5
  %23 = call i32 @x509_cert_from_der(ptr noundef %21, ptr noundef %22, ptr noundef %8, ptr noundef %9)
  %24 = icmp ne i32 %23, 1
  br i1 %24, label %25, label %31

25:                                               ; preds = %20
  br label %26

26:                                               ; preds = %25
  %27 = load ptr, ptr @stderr, align 8, !tbaa !5
  %28 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %27, ptr noundef @.str.3, ptr noundef @.str.4, i32 noundef 1647, ptr noundef @__FUNCTION__.x509_certs_get_cert_by_subject) #3
  br label %29

29:                                               ; preds = %26
  br label %30

30:                                               ; preds = %29
  store i32 -1, ptr %7, align 4
  store i32 1, ptr %16, align 4
  br label %56

31:                                               ; preds = %20
  %32 = load ptr, ptr %12, align 8, !tbaa !5
  %33 = load ptr, ptr %32, align 8, !tbaa !5
  %34 = load ptr, ptr %13, align 8, !tbaa !5
  %35 = load i64, ptr %34, align 8, !tbaa !9
  %36 = call i32 @x509_cert_get_subject(ptr noundef %33, i64 noundef %35, ptr noundef %14, ptr noundef %15)
  %37 = icmp ne i32 %36, 1
  br i1 %37, label %38, label %44

38:                                               ; preds = %31
  br label %39

39:                                               ; preds = %38
  %40 = load ptr, ptr @stderr, align 8, !tbaa !5
  %41 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %40, ptr noundef @.str.3, ptr noundef @.str.4, i32 noundef 1651, ptr noundef @__FUNCTION__.x509_certs_get_cert_by_subject) #3
  br label %42

42:                                               ; preds = %39
  br label %43

43:                                               ; preds = %42
  store i32 -1, ptr %7, align 4
  store i32 1, ptr %16, align 4
  br label %56

44:                                               ; preds = %31
  %45 = load ptr, ptr %14, align 8, !tbaa !5
  %46 = load i64, ptr %15, align 8, !tbaa !9
  %47 = load ptr, ptr %10, align 8, !tbaa !5
  %48 = load i64, ptr %11, align 8, !tbaa !9
  %49 = call i32 @x509_name_equ(ptr noundef %45, i64 noundef %46, ptr noundef %47, i64 noundef %48)
  %50 = icmp eq i32 %49, 1
  br i1 %50, label %51, label %52

51:                                               ; preds = %44
  store i32 1, ptr %7, align 4
  store i32 1, ptr %16, align 4
  br label %56

52:                                               ; preds = %44
  br label %17, !llvm.loop !11

53:                                               ; preds = %17
  %54 = load ptr, ptr %12, align 8, !tbaa !5
  store ptr null, ptr %54, align 8, !tbaa !5
  %55 = load ptr, ptr %13, align 8, !tbaa !5
  store i64 0, ptr %55, align 8, !tbaa !9
  store i32 0, ptr %7, align 4
  store i32 1, ptr %16, align 4
  br label %56

56:                                               ; preds = %53, %51, %43, %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #3
  %57 = load i32, ptr %7, align 4
  ret i32 %57
}

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 = { 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_certs_get_cert_by_subject = 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

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_name_equ(ptr noundef, i64 noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_cert_get_subject(ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @x509_cert_from_der(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @x509_certs_get_cert_by_subject(ptr noundef %0, i64 noundef %1, ptr noundef %2, i64 noundef %3, ptr noundef %4, ptr noundef %5) local_unnamed_addr #2 {
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i64, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i64 %1, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #3
  %.not10 = icmp eq i64 %1, 0
  br i1 %.not10, label %._crit_edge, label %.lr.ph

thread-pre-split:                                 ; preds = %22
  %.pr = load i64, ptr %8, align 8, !tbaa !9
  %.not = icmp eq i64 %.pr, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %6, %thread-pre-split
  %11 = call i32 @x509_cert_from_der(ptr noundef %4, ptr noundef %5, ptr noundef nonnull %7, ptr noundef nonnull %8)
  %.not8 = icmp eq i32 %11, 1
  br i1 %.not8, label %15, label %12

12:                                               ; preds = %.lr.ph
  %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 1647, ptr noundef nonnull @__FUNCTION__.x509_certs_get_cert_by_subject) #4
  br label %.loopexit

15:                                               ; preds = %.lr.ph
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = load i64, ptr %5, align 8, !tbaa !9
  %18 = call i32 @x509_cert_get_subject(ptr noundef %16, i64 noundef %17, ptr noundef nonnull %9, ptr noundef nonnull %10)
  %.not9 = icmp eq i32 %18, 1
  br i1 %.not9, label %22, label %19

19:                                               ; preds = %15
  %20 = load ptr, ptr @stderr, align 8, !tbaa !5
  %21 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.4, i32 noundef 1651, ptr noundef nonnull @__FUNCTION__.x509_certs_get_cert_by_subject) #4
  br label %.loopexit

22:                                               ; preds = %15
  %23 = load ptr, ptr %9, align 8, !tbaa !5
  %24 = load i64, ptr %10, align 8, !tbaa !9
  %25 = call i32 @x509_name_equ(ptr noundef %23, i64 noundef %24, ptr noundef %2, i64 noundef %3)
  %26 = icmp eq i32 %25, 1
  br i1 %26, label %.loopexit, label %thread-pre-split, !llvm.loop !11

._crit_edge:                                      ; preds = %thread-pre-split, %6
  store ptr null, ptr %4, align 8, !tbaa !5
  store i64 0, ptr %5, align 8, !tbaa !9
  br label %.loopexit

.loopexit:                                        ; preds = %22, %._crit_edge, %19, %12
  %.0 = phi i32 [ -1, %12 ], [ -1, %19 ], [ 0, %._crit_edge ], [ 1, %22 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #3
  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 = { 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 }
attributes #4 = { 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