; LLVM IR from opset/openset :: lib/cjson/cjson.ll (ZN5cjsonC2EP9HeapStack)

; 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.cjson = type <{ ptr, i64, ptr, ptr, ptr, ptr, i32, [4 x i8], ptr, ptr, ptr, ptr, i8, [7 x i8] }>
%"struct.HeapStack::block_s" = type <{ ptr, i64, i8, [1 x i8] }>

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN5cjsonC2EP9HeapStack(ptr noundef nonnull align 8 dereferenceable(89) %0, ptr noundef %1) unnamed_addr #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  %6 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 0
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %7, ptr %6, align 8, !tbaa !9
  %8 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 1
  store i64 0, ptr %8, align 8, !tbaa !14
  %9 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 2
  store ptr null, ptr %9, align 8, !tbaa !15
  %10 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 3
  store ptr null, ptr %10, align 8, !tbaa !16
  %11 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 4
  store ptr null, ptr %11, align 8, !tbaa !17
  %12 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 5
  store ptr null, ptr %12, align 8, !tbaa !18
  %13 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 6
  store i32 0, ptr %13, align 8, !tbaa !19
  %14 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 8
  store ptr null, ptr %14, align 8, !tbaa !20
  %15 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 9
  store ptr null, ptr %15, align 8, !tbaa !21
  %16 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 10
  store ptr null, ptr %16, align 8, !tbaa !22
  %17 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 11
  store ptr null, ptr %17, align 8, !tbaa !23
  %18 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 12
  store i8 0, ptr %18, align 8, !tbaa !24
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = call noundef ptr @_ZNK9HeapStack10firstBlockEv(ptr noundef nonnull align 8 dereferenceable(56) %19)
  %21 = getelementptr inbounds %"struct.HeapStack::block_s", ptr %20, i32 0, i32 3
  %22 = getelementptr inbounds [1 x i8], ptr %21, i64 0, i64 0
  %23 = getelementptr inbounds %class.cjson, ptr %5, i32 0, i32 8
  store ptr %22, ptr %23, align 8, !tbaa !20
  ret void
}

declare noundef ptr @_ZNK9HeapStack10firstBlockEv(ptr noundef nonnull align 8 dereferenceable(56)) #1

attributes #0 = { 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 #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" }

!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, !6, i64 0}
!10 = !{!"_ZTS5cjson", !6, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !12, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !13, i64 88}
!11 = !{!"_ZTSN5cjson7Types_eE", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!"bool", !7, i64 0}
!14 = !{!10, !11, i64 8}
!15 = !{!10, !6, i64 16}
!16 = !{!10, !6, i64 24}
!17 = !{!10, !6, i64 32}
!18 = !{!10, !6, i64 40}
!19 = !{!10, !12, i64 48}
!20 = !{!10, !6, i64 56}
!21 = !{!10, !6, i64 64}
!22 = !{!10, !6, i64 72}
!23 = !{!10, !6, i64 80}
!24 = !{!10, !13, i64 88}


; 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: mustprogress uwtable
define dso_local void @_ZN5cjsonC2EP9HeapStack(ptr nocapture noundef nonnull writeonly align 8 dereferenceable(89) %0, ptr noundef nonnull %1) unnamed_addr #0 align 2 {
  store ptr %1, ptr %0, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = getelementptr inbounds i8, ptr %0, i64 56
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(44) %3, i8 0, i64 44, i1 false)
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(33) %4, i8 0, i64 33, i1 false)
  %5 = tail call noundef ptr @_ZNK9HeapStack10firstBlockEv(ptr noundef nonnull align 8 dereferenceable(56) %1)
  %6 = getelementptr inbounds i8, ptr %5, i64 17
  store ptr %6, ptr %4, align 8, !tbaa !13
  ret void
}

declare noundef ptr @_ZNK9HeapStack10firstBlockEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { 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 #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 nounwind willreturn memory(argmem: write) }

!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 = !{!"_ZTS5cjson", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !11, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !12, i64 88}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSN5cjson7Types_eE", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!"bool", !8, i64 0}
!13 = !{!6, !7, i64 56}


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