; LLVM IR from Slingshot-Physics/slingshot-community :: common/json/src (json_serialize)

; 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.json_value_s = type { i32, ptr, %union.anon }
%union.anon = type { %struct.json_object_s }
%struct.json_object_s = type { i32, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local void @json_serialize_string(ptr noundef, i32 noundef, ptr noundef) #0

declare void @json_string_append(ptr noundef, i8 noundef signext) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nounwind uwtable
define dso_local void @json_serialize_object(ptr noundef %0, i32 noundef %1, ptr noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  call void @json_string_append(ptr noundef %9, i8 noundef signext 123)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %48, %3
  %11 = load i32, ptr %7, align 4, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.json_value_s, ptr %12, i32 0, i32 2
  %14 = getelementptr inbounds %struct.json_object_s, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = icmp ult i32 %11, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %51

18:                                               ; preds = %10
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.json_value_s, ptr %19, i32 0, i32 2
  %21 = getelementptr inbounds %struct.json_object_s, ptr %20, i32 0, i32 2
  %22 = load ptr, ptr %21, align 8, !tbaa !11
  %23 = load i32, ptr %7, align 4, !tbaa !9
  %24 = zext i32 %23 to i64
  %25 = getelementptr inbounds %struct.json_value_s, ptr %22, i64 %24
  %26 = load i32, ptr %5, align 4, !tbaa !9
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  call void @json_serialize_string(ptr noundef %25, i32 noundef %26, ptr noundef %27)
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  call void @json_string_append(ptr noundef %28, i8 noundef signext 58)
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.json_value_s, ptr %29, i32 0, i32 2
  %31 = getelementptr inbounds %struct.json_object_s, ptr %30, i32 0, i32 3
  %32 = load ptr, ptr %31, align 8, !tbaa !11
  %33 = load i32, ptr %7, align 4, !tbaa !9
  %34 = zext i32 %33 to i64
  %35 = getelementptr inbounds %struct.json_value_s, ptr %32, i64 %34
  %36 = load i32, ptr %5, align 4, !tbaa !9
  %37 = load ptr, ptr %6, align 8, !tbaa !5
  call void @json_serialize_value(ptr noundef %35, i32 noundef %36, ptr noundef %37)
  %38 = load i32, ptr %7, align 4, !tbaa !9
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.json_value_s, ptr %39, i32 0, i32 2
  %41 = getelementptr inbounds %struct.json_object_s, ptr %40, i32 0, i32 0
  %42 = load i32, ptr %41, align 8, !tbaa !11
  %43 = sub i32 %42, 1
  %44 = icmp ult i32 %38, %43
  br i1 %44, label %45, label %47

45:                                               ; preds = %18
  %46 = load ptr, ptr %6, align 8, !tbaa !5
  call void @json_string_append(ptr noundef %46, i8 noundef signext 44)
  br label %47

47:                                               ; preds = %45, %18
  br label %48

48:                                               ; preds = %47
  %49 = load i32, ptr %7, align 4, !tbaa !9
  %50 = add i32 %49, 1
  store i32 %50, ptr %7, align 4, !tbaa !9
  br label %10, !llvm.loop !12

51:                                               ; preds = %17
  %52 = load ptr, ptr %6, align 8, !tbaa !5
  call void @json_string_append(ptr noundef %52, i8 noundef signext 125)
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @json_serialize_value(ptr noundef, i32 noundef, ptr noundef) #0

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 = { "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 = { nocallback nofree nosync 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 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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"

%struct.json_value_s = type { i32, ptr, %union.anon }
%union.anon = type { %struct.json_object_s }
%struct.json_object_s = type { i32, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local void @json_serialize_string(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

declare void @json_string_append(ptr noundef, i8 noundef signext) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @json_serialize_object(ptr nocapture noundef readonly %0, i32 noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  tail call void @json_string_append(ptr noundef %2, i8 noundef signext 123) #2
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %.not = icmp eq i32 %5, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3
  %6 = getelementptr inbounds i8, ptr %0, i64 24
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  br label %8

._crit_edge:                                      ; preds = %18, %3
  tail call void @json_string_append(ptr noundef %2, i8 noundef signext 125) #2
  ret void

8:                                                ; preds = %.lr.ph, %18
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %18 ]
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.json_value_s, ptr %9, i64 %indvars.iv
  tail call void @json_serialize_string(ptr noundef %10, i32 noundef %1, ptr noundef %2)
  tail call void @json_string_append(ptr noundef %2, i8 noundef signext 58) #2
  %11 = load ptr, ptr %7, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.json_value_s, ptr %11, i64 %indvars.iv
  tail call void @json_serialize_value(ptr noundef %12, i32 noundef %1, ptr noundef %2)
  %13 = load i32, ptr %4, align 8, !tbaa !5
  %14 = add i32 %13, -1
  %15 = zext i32 %14 to i64
  %16 = icmp ult i64 %indvars.iv, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %8
  tail call void @json_string_append(ptr noundef %2, i8 noundef signext 44) #2
  %.pre = load i32, ptr %4, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %8, %17
  %19 = phi i32 [ %13, %8 ], [ %.pre, %17 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = zext i32 %19 to i64
  %21 = icmp ult i64 %indvars.iv.next, %20
  br i1 %21, label %8, label %._crit_edge, !llvm.loop !8
}

; Function Attrs: nounwind uwtable
declare dso_local void @json_serialize_value(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

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 = { "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 }

!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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass