; LLVM IR from guanzhi/GmSSL :: src (tls13)

; 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 [59 x i8], align 1
@__FUNCTION__.tls13_certificate_list_to_bytes = external hidden unnamed_addr constant [32 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

declare void @tls_uint16array_to_bytes(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @tls13_certificate_list_to_bytes(ptr noundef %0, i64 noundef %1, ptr noundef %2, ptr noundef %3) #3 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i64, align 8
  %12 = alloca ptr, align 8
  %13 = alloca i64, align 8
  %14 = alloca ptr, align 8
  %15 = alloca i64, align 8
  %16 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i64 %1, ptr %7, align 8, !tbaa !9
  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 8, ptr %10) #4
  store ptr null, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  store i64 0, ptr %11, align 8, !tbaa !9
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %27

19:                                               ; preds = %4
  %20 = load ptr, ptr %8, align 8, !tbaa !5
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %27

23:                                               ; preds = %19
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  %26 = getelementptr inbounds i8, ptr %25, i64 3
  store ptr %26, ptr %10, align 8, !tbaa !5
  br label %27

27:                                               ; preds = %23, %19, %4
  br label %28

28:                                               ; preds = %47, %27
  %29 = load i64, ptr %7, align 8, !tbaa !9
  %30 = icmp ne i64 %29, 0
  br i1 %30, label %31, label %48

31:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #4
  store ptr null, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #4
  store i64 0, ptr %15, align 8, !tbaa !9
  %32 = call i32 @x509_cert_from_der(ptr noundef %12, ptr noundef %13, ptr noundef %6, ptr noundef %7)
  %33 = icmp ne i32 %32, 1
  br i1 %33, label %34, label %40

34:                                               ; preds = %31
  br label %35

35:                                               ; preds = %34
  %36 = load ptr, ptr @stderr, align 8, !tbaa !5
  %37 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %36, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1153, ptr noundef @__FUNCTION__.tls13_certificate_list_to_bytes) #4
  br label %38

38:                                               ; preds = %35
  br label %39

39:                                               ; preds = %38
  store i32 -1, ptr %5, align 4
  store i32 1, ptr %16, align 4
  br label %45

40:                                               ; preds = %31
  %41 = load ptr, ptr %12, align 8, !tbaa !5
  %42 = load i64, ptr %13, align 8, !tbaa !9
  call void @tls_uint24array_to_bytes(ptr noundef %41, i64 noundef %42, ptr noundef %10, ptr noundef %11)
  %43 = load ptr, ptr %14, align 8, !tbaa !5
  %44 = load i64, ptr %15, align 8, !tbaa !9
  call void @tls_uint16array_to_bytes(ptr noundef %43, i64 noundef %44, ptr noundef %10, ptr noundef %11)
  store i32 0, ptr %16, align 4
  br label %45

45:                                               ; preds = %40, %39
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  %46 = load i32, ptr %16, align 4
  switch i32 %46, label %52 [
    i32 0, label %47
  ]

47:                                               ; preds = %45
  br label %28, !llvm.loop !11

48:                                               ; preds = %28
  %49 = load i64, ptr %11, align 8, !tbaa !9
  %50 = load ptr, ptr %8, align 8, !tbaa !5
  %51 = load ptr, ptr %9, align 8, !tbaa !5
  call void @tls_uint24array_to_bytes(ptr noundef null, i64 noundef %49, ptr noundef %50, ptr noundef %51)
  store i32 1, ptr %5, align 4
  store i32 1, ptr %16, align 4
  br label %52

52:                                               ; preds = %48, %45
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %53 = load i32, ptr %5, align 4
  ret i32 %53
}

declare i32 @x509_cert_from_der(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

declare void @tls_uint24array_to_bytes(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #2

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 = { "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 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [59 x i8], align 1
@__FUNCTION__.tls13_certificate_list_to_bytes = external hidden unnamed_addr constant [32 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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare void @tls_uint16array_to_bytes(ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @tls13_certificate_list_to_bytes(ptr noundef %0, i64 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
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  store ptr null, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #4
  store i64 0, ptr %8, align 8, !tbaa !9
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %15, label %11

11:                                               ; preds = %4
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %.not11 = icmp eq ptr %12, null
  br i1 %.not11, label %15, label %13

13:                                               ; preds = %11
  %14 = getelementptr inbounds i8, ptr %12, i64 3
  store ptr %14, ptr %7, align 8, !tbaa !5
  br label %15

15:                                               ; preds = %13, %11, %4
  %.not1214 = icmp eq i64 %1, 0
  br i1 %.not1214, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %15, %19
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #4
  %16 = call i32 @x509_cert_from_der(ptr noundef nonnull %9, ptr noundef nonnull %10, ptr noundef nonnull %5, ptr noundef nonnull %6) #4
  %.not13 = icmp eq i32 %16, 1
  br i1 %.not13, label %19, label %.thread

.thread:                                          ; preds = %.lr.ph
  %17 = load ptr, ptr @stderr, align 8, !tbaa !5
  %18 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 1153, ptr noundef nonnull @__FUNCTION__.tls13_certificate_list_to_bytes) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #4
  br label %24

19:                                               ; preds = %.lr.ph
  %20 = load ptr, ptr %9, align 8, !tbaa !5
  %21 = load i64, ptr %10, align 8, !tbaa !9
  call void @tls_uint24array_to_bytes(ptr noundef %20, i64 noundef %21, ptr noundef nonnull %7, ptr noundef nonnull %8) #4
  call void @tls_uint16array_to_bytes(ptr noundef null, i64 noundef 0, ptr noundef nonnull %7, ptr noundef nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #4
  %22 = load i64, ptr %6, align 8, !tbaa !9
  %.not12 = icmp eq i64 %22, 0
  br i1 %.not12, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !11

._crit_edge.loopexit:                             ; preds = %19
  %.pre = load i64, ptr %8, align 8, !tbaa !9
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %15
  %23 = phi i64 [ %.pre, %._crit_edge.loopexit ], [ 0, %15 ]
  call void @tls_uint24array_to_bytes(ptr noundef null, i64 noundef %23, ptr noundef %2, ptr noundef %3) #4
  br label %24

24:                                               ; preds = %.thread, %._crit_edge
  %.2 = phi i32 [ 1, %._crit_edge ], [ -1, %.thread ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  ret i32 %.2
}

declare i32 @x509_cert_from_der(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

declare void @tls_uint24array_to_bytes(ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass