; LLVM IR from specinfo-ua/UAPKI :: library/uapkif/src/asn1 (der_encoder)

; 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.asn_enc_rval_s = type { i64, ptr, ptr }
%struct.enc_to_buf_arg = type { ptr, i64 }
%struct.asn_TYPE_descriptor_s = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, ptr, i32, ptr, ptr, i32, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @der_encode_to_buffer(ptr dead_on_unwind noalias writable sret(%struct.asn_enc_rval_s) align 8 %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, i64 noundef %4) #0 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca %struct.enc_to_buf_arg, align 8
  %11 = alloca %struct.asn_enc_rval_s, align 8
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  store i64 %4, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #3
  %12 = load ptr, ptr %8, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.enc_to_buf_arg, ptr %10, i32 0, i32 0
  store ptr %12, ptr %13, align 8, !tbaa !11
  %14 = load i64, ptr %9, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.enc_to_buf_arg, ptr %10, i32 0, i32 1
  store i64 %14, ptr %15, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 24, ptr %11) #3
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.asn_TYPE_descriptor_s, ptr %16, i32 0, i32 6
  %18 = load ptr, ptr %17, align 8, !tbaa !14
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  call void %18(ptr dead_on_unwind writable sret(%struct.asn_enc_rval_s) align 8 %11, ptr noundef %19, ptr noundef %20, i32 noundef 0, i32 noundef 0, ptr noundef @encode_to_buffer_cb, ptr noundef %10)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %0, ptr align 8 %11, i64 24, i1 false), !tbaa.struct !17
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #3
  %21 = getelementptr inbounds %struct.asn_enc_rval_s, ptr %0, i32 0, i32 0
  %22 = load i64, ptr %21, align 8, !tbaa !18
  %23 = icmp ne i64 %22, -1
  br i1 %23, label %24, label %25

24:                                               ; preds = %5
  br label %25

25:                                               ; preds = %24, %5
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #3
  ret void
}

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

; Function Attrs: nounwind uwtable
declare hidden i32 @encode_to_buffer_cb(ptr noundef, i64 noundef, ptr noundef) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!12, !6, i64 0}
!12 = !{!"enc_to_buf_arg", !6, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}
!14 = !{!15, !6, i64 48}
!15 = !{!"asn_TYPE_descriptor_s", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !16, i64 104, !6, i64 112, !16, i64 120, !6, i64 128, !6, i64 136, !16, i64 144, !6, i64 152}
!16 = !{!"int", !7, i64 0}
!17 = !{i64 0, i64 8, !9, i64 8, i64 8, !5, i64 16, i64 8, !5}
!18 = !{!19, !10, i64 0}
!19 = !{!"asn_enc_rval_s", !10, i64 0, !6, i64 8, !6, i64 16}


; 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.asn_enc_rval_s = type { i64, ptr, ptr }
%struct.enc_to_buf_arg = type { ptr, i64 }

; Function Attrs: nounwind uwtable
define dso_local void @der_encode_to_buffer(ptr dead_on_unwind noalias nocapture writable writeonly sret(%struct.asn_enc_rval_s) align 8 %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, i64 noundef %4) local_unnamed_addr #0 {
  %6 = alloca %struct.enc_to_buf_arg, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #2
  store ptr %3, ptr %6, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 8
  store i64 %4, ptr %7, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %1, i64 48
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  call void %9(ptr dead_on_unwind nonnull writable sret(%struct.asn_enc_rval_s) align 8 %0, ptr noundef %1, ptr noundef %2, i32 noundef 0, i32 noundef 0, ptr noundef nonnull @encode_to_buffer_cb, ptr noundef nonnull %6) #2
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #2
  ret void
}

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

; Function Attrs: nounwind uwtable
declare hidden i32 @encode_to_buffer_cb(ptr noundef, i64 noundef, ptr noundef) #0

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

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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, !7, i64 0}
!6 = !{!"enc_to_buf_arg", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!13, !7, i64 48}
!13 = !{!"asn_TYPE_descriptor_s", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !7, i64 88, !7, i64 96, !14, i64 104, !7, i64 112, !14, i64 120, !7, i64 128, !7, i64 136, !14, i64 144, !7, i64 152}
!14 = !{!"int", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass