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

; 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"

%struct.ASN1_OID_INFO = type { i32, ptr, ptr, i64, i32, ptr }

@ec_named_curves = external hidden constant [6 x %struct.ASN1_OID_INFO], align 16
@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [56 x i8], align 1
@__FUNCTION__.ec_named_curve_to_der = external hidden unnamed_addr constant [22 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

declare ptr @asn1_oid_info_from_oid(ptr noundef, i64 noundef, i32 noundef) #1

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; 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
define dso_local i32 @ec_named_curve_to_der(i32 noundef %0, ptr noundef %1, ptr noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = call ptr @asn1_oid_info_from_oid(ptr noundef @ec_named_curves, i64 noundef 6, i32 noundef %10)
  store ptr %11, ptr %8, align 8, !tbaa !9
  %12 = icmp ne ptr %11, null
  br i1 %12, label %19, label %13

13:                                               ; preds = %3
  br label %14

14:                                               ; preds = %13
  %15 = load ptr, ptr @stderr, align 8, !tbaa !9
  %16 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %15, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 68, ptr noundef @__FUNCTION__.ec_named_curve_to_der) #4
  br label %17

17:                                               ; preds = %14
  br label %18

18:                                               ; preds = %17
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %37

19:                                               ; preds = %3
  %20 = load ptr, ptr %8, align 8, !tbaa !9
  %21 = getelementptr inbounds %struct.ASN1_OID_INFO, ptr %20, i32 0, i32 2
  %22 = load ptr, ptr %21, align 8, !tbaa !11
  %23 = load ptr, ptr %8, align 8, !tbaa !9
  %24 = getelementptr inbounds %struct.ASN1_OID_INFO, ptr %23, i32 0, i32 3
  %25 = load i64, ptr %24, align 8, !tbaa !14
  %26 = load ptr, ptr %6, align 8, !tbaa !9
  %27 = load ptr, ptr %7, align 8, !tbaa !9
  %28 = call i32 @asn1_object_identifier_to_der_ex(i32 noundef 6, ptr noundef %22, i64 noundef %25, ptr noundef %26, ptr noundef %27)
  %29 = icmp ne i32 %28, 1
  br i1 %29, label %30, label %36

30:                                               ; preds = %19
  br label %31

31:                                               ; preds = %30
  %32 = load ptr, ptr @stderr, align 8, !tbaa !9
  %33 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %32, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 72, ptr noundef @__FUNCTION__.ec_named_curve_to_der) #4
  br label %34

34:                                               ; preds = %31
  br label %35

35:                                               ; preds = %34
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %37

36:                                               ; preds = %19
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %37

37:                                               ; preds = %36, %35, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %38 = load i32, ptr %4, align 4
  ret i32 %38
}

declare i32 @asn1_object_identifier_to_der_ex(i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 "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 = !{!"int", !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}
!11 = !{!12, !10, i64 16}
!12 = !{!"", !6, i64 0, !10, i64 8, !10, i64 16, !13, i64 24, !6, i64 32, !10, i64 40}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !13, i64 24}


; 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"

%struct.ASN1_OID_INFO = type { i32, ptr, ptr, i64, i32, ptr }

@ec_named_curves = external hidden constant [6 x %struct.ASN1_OID_INFO], align 16
@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 [56 x i8], align 1
@__FUNCTION__.ec_named_curve_to_der = external hidden unnamed_addr constant [22 x i8], align 1

declare ptr @asn1_oid_info_from_oid(ptr noundef, i64 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @ec_named_curve_to_der(i32 noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #2 {
  %4 = tail call ptr @asn1_oid_info_from_oid(ptr noundef nonnull @ec_named_curves, i64 noundef 6, i32 noundef %0) #3
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %.sink.split, label %5

5:                                                ; preds = %3
  %6 = getelementptr inbounds i8, ptr %4, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 24
  %9 = load i64, ptr %8, align 8, !tbaa !12
  %10 = tail call i32 @asn1_object_identifier_to_der_ex(i32 noundef 6, ptr noundef %7, i64 noundef %9, ptr noundef %1, ptr noundef %2) #3
  %.not6 = icmp eq i32 %10, 1
  br i1 %.not6, label %13, label %.sink.split

.sink.split:                                      ; preds = %5, %3
  %.sink7 = phi i32 [ 68, %3 ], [ 72, %5 ]
  %11 = load ptr, ptr @stderr, align 8, !tbaa !13
  %12 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %11, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink7, ptr noundef nonnull @__FUNCTION__.ec_named_curve_to_der) #4
  br label %13

13:                                               ; preds = %.sink.split, %5
  %.0 = phi i32 [ 1, %5 ], [ -1, %.sink.split ]
  ret i32 %.0
}

declare i32 @asn1_object_identifier_to_der_ex(i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

attributes #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 #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, !10, i64 16}
!6 = !{!"", !7, i64 0, !10, i64 8, !10, i64 16, !11, i64 24, !7, i64 32, !10, i64 40}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = !{!6, !11, i64 24}
!13 = !{!10, !10, i64 0}


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