; LLVM IR from QAQdev/mini-sql-engine :: src/record/types.ll (ZNK8TypeChar11SerializeToERK5FieldPc)

; 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"

%class.Field = type <{ %"union.Field::Val", i32, i32, i8, i8, [6 x i8] }>
%"union.Field::Val" = type { ptr }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK5Field6IsNullEv(ptr noundef nonnull align 8 dereferenceable(18)) #0 align 2

; 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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK8TypeChar11SerializeToERK5FieldPc(ptr noundef nonnull align 8 dereferenceable(12) %0, ptr noundef nonnull align 8 dereferenceable(18) %1, ptr noundef %2) unnamed_addr #2 align 2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = call noundef zeroext i1 @_ZNK5Field6IsNullEv(ptr noundef nonnull align 8 dereferenceable(18) %10)
  br i1 %11, label %30, label %12

12:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = load ptr, ptr %9, align 8, !tbaa !9
  %15 = getelementptr inbounds ptr, ptr %14, i64 6
  %16 = load ptr, ptr %15, align 8
  %17 = call noundef i32 %16(ptr noundef nonnull align 8 dereferenceable(12) %9, ptr noundef nonnull align 8 dereferenceable(18) %13)
  store i32 %17, ptr %8, align 4, !tbaa !11
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %18, ptr align 4 %8, i64 4, i1 false)
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %19, i64 4
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = getelementptr inbounds %class.Field, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !13
  %24 = load i32, ptr %8, align 4, !tbaa !11
  %25 = zext i32 %24 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %20, ptr align 1 %23, i64 %25, i1 false)
  %26 = load i32, ptr %8, align 4, !tbaa !11
  %27 = zext i32 %26 to i64
  %28 = add i64 %27, 4
  %29 = trunc i64 %28 to i32
  store i32 %29, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %31

30:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  br label %31

31:                                               ; preds = %30, %12
  %32 = load i32, ptr %4, align 4
  ret i32 %32
}

; 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) #3

attributes #0 = { inlinehint mustprogress 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 = { mustprogress 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!7, !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"

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK5Field6IsNullEv(ptr noundef nonnull align 8 dereferenceable(18)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK8TypeChar11SerializeToERK5FieldPc(ptr noundef nonnull align 8 dereferenceable(12) %0, ptr noundef nonnull align 8 dereferenceable(18) %1, ptr nocapture noundef writeonly %2) unnamed_addr #1 align 2 {
  %4 = tail call noundef zeroext i1 @_ZNK5Field6IsNullEv(ptr noundef nonnull align 8 dereferenceable(18) %1)
  br i1 %4, label %14, label %5

5:                                                ; preds = %3
  %6 = load ptr, ptr %0, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 48
  %8 = load ptr, ptr %7, align 8
  %9 = tail call noundef i32 %8(ptr noundef nonnull align 8 dereferenceable(12) %0, ptr noundef nonnull align 8 dereferenceable(18) %1)
  store i32 %9, ptr %2, align 1
  %10 = getelementptr inbounds i8, ptr %2, i64 4
  %11 = load ptr, ptr %1, align 8, !tbaa !8
  %12 = zext i32 %9 to i64
  tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %10, ptr align 1 %11, i64 %12, i1 false)
  %13 = add i32 %9, 4
  br label %14

14:                                               ; preds = %3, %5
  %.0 = phi i32 [ %13, %5 ], [ 0, %3 ]
  ret i32 %.0
}

; Function Attrs: mustprogress 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

attributes #0 = { inlinehint mustprogress 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 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 #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"omnipotent char", !7, i64 0}


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