; LLVM IR from guanzhi/GmSSL :: src (tls12)

; 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__.tls_record_get_handshake_client_key_exchange_ecdhe = external hidden unnamed_addr constant [51 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 @tls_record_get_handshake(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

declare i32 @tls_uint8array_from_bytes(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

declare i32 @sm2_z256_point_from_octets(ptr noundef, ptr noundef, i64 noundef) #2

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

15:                                               ; preds = %2
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = icmp ne i32 %16, 16
  br i1 %17, label %18, label %24

18:                                               ; preds = %15, %2
  br label %19

19:                                               ; preds = %18
  %20 = load ptr, ptr @stderr, align 8, !tbaa !5
  %21 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 142, ptr noundef @__FUNCTION__.tls_record_get_handshake_client_key_exchange_ecdhe) #4
  br label %22

22:                                               ; preds = %19
  br label %23

23:                                               ; preds = %22
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %11, align 4
  br label %52

24:                                               ; preds = %15
  %25 = call i32 @tls_uint8array_from_bytes(ptr noundef %9, ptr noundef %10, ptr noundef %7, ptr noundef %8)
  %26 = icmp ne i32 %25, 1
  br i1 %26, label %30, label %27

27:                                               ; preds = %24
  %28 = load i64, ptr %8, align 8, !tbaa !11
  %29 = icmp ugt i64 %28, 0
  br i1 %29, label %30, label %36

30:                                               ; preds = %27, %24
  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, ptr noundef @.str.1, i32 noundef 147, ptr noundef @__FUNCTION__.tls_record_get_handshake_client_key_exchange_ecdhe) #4
  br label %34

34:                                               ; preds = %31
  br label %35

35:                                               ; preds = %34
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %11, align 4
  br label %52

36:                                               ; preds = %27
  %37 = load i64, ptr %10, align 8, !tbaa !11
  %38 = icmp ne i64 %37, 65
  br i1 %38, label %45, label %39

39:                                               ; preds = %36
  %40 = load ptr, ptr %5, align 8, !tbaa !5
  %41 = load ptr, ptr %9, align 8, !tbaa !5
  %42 = load i64, ptr %10, align 8, !tbaa !11
  %43 = call i32 @sm2_z256_point_from_octets(ptr noundef %40, ptr noundef %41, i64 noundef %42)
  %44 = icmp ne i32 %43, 1
  br i1 %44, label %45, label %51

45:                                               ; preds = %39, %36
  br label %46

46:                                               ; preds = %45
  %47 = load ptr, ptr @stderr, align 8, !tbaa !5
  %48 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %47, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 152, ptr noundef @__FUNCTION__.tls_record_get_handshake_client_key_exchange_ecdhe) #4
  br label %49

49:                                               ; preds = %46
  br label %50

50:                                               ; preds = %49
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %11, align 4
  br label %52

51:                                               ; preds = %39
  store i32 1, ptr %3, align 4
  store i32 1, ptr %11, align 4
  br label %52

52:                                               ; preds = %51, %50, %35, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %53 = load i32, ptr %3, align 4
  ret i32 %53
}

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, !12, i64 0}
!12 = !{!"long", !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 [59 x i8], align 1
@__FUNCTION__.tls_record_get_handshake_client_key_exchange_ecdhe = external hidden unnamed_addr constant [51 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 @tls_record_get_handshake(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

declare i32 @tls_uint8array_from_bytes(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

declare i32 @sm2_z256_point_from_octets(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @tls_record_get_handshake_client_key_exchange_ecdhe(ptr noundef %0, ptr noundef %1) local_unnamed_addr #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
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  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 @tls_record_get_handshake(ptr noundef %0, ptr noundef nonnull %3, ptr noundef nonnull %4, ptr noundef nonnull %5) #4
  %9 = icmp ne i32 %8, 1
  %10 = load i32, ptr %3, align 4
  %11 = icmp ne i32 %10, 16
  %or.cond = select i1 %9, i1 true, i1 %11
  br i1 %or.cond, label %.sink.split, label %12

12:                                               ; preds = %2
  %13 = call i32 @tls_uint8array_from_bytes(ptr noundef nonnull %6, ptr noundef nonnull %7, ptr noundef nonnull %4, ptr noundef nonnull %5) #4
  %14 = icmp ne i32 %13, 1
  %15 = load i64, ptr %5, align 8
  %16 = icmp ne i64 %15, 0
  %or.cond3 = select i1 %14, i1 true, i1 %16
  br i1 %or.cond3, label %.sink.split, label %17

17:                                               ; preds = %12
  %18 = load i64, ptr %7, align 8, !tbaa !5
  %.not = icmp eq i64 %18, 65
  br i1 %.not, label %19, label %.sink.split

19:                                               ; preds = %17
  %20 = load ptr, ptr %6, align 8, !tbaa !9
  %21 = call i32 @sm2_z256_point_from_octets(ptr noundef %1, ptr noundef %20, i64 noundef 65) #4
  %.not6 = icmp eq i32 %21, 1
  br i1 %.not6, label %24, label %.sink.split

.sink.split:                                      ; preds = %19, %17, %12, %2
  %.sink7 = phi i32 [ 142, %2 ], [ 147, %12 ], [ 152, %17 ], [ 152, %19 ]
  %22 = load ptr, ptr @stderr, align 8, !tbaa !9
  %23 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %22, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink7, ptr noundef nonnull @__FUNCTION__.tls_record_get_handshake_client_key_exchange_ecdhe) #5
  br label %24

24:                                               ; preds = %.sink.split, %19
  %.0 = phi i32 [ 1, %19 ], [ -1, %.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
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #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 = !{!"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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass