; LLVM IR from ejoy/ejoy2d :: lua (lapi)

; 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.lua_State = type { ptr, i8, i8, i8, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.CallInfo, ptr, i64, i32, i32, i32, i16, i16, i8, i8 }
%struct.CallInfo = type { ptr, ptr, ptr, ptr, %union.anon, i64, i16, i8 }
%union.anon = type { %struct.anon.0 }
%struct.anon.0 = type { ptr, i64, i64 }
%struct.global_State = type { ptr, ptr, i64, i64, i64, i64, %struct.stringtable, %struct.lua_TValue, i32, i8, i8, i8, i8, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.Mbuffer, i32, i32, i32, ptr, ptr, ptr, ptr, [24 x ptr], [9 x ptr] }
%struct.stringtable = type { ptr, i32, i32 }
%struct.lua_TValue = type { %union.Value, i32 }
%union.Value = type { ptr }
%struct.Mbuffer = type { ptr, i64, i64 }
%struct.TString = type { ptr, i8, i8, i8, i32, i64, ptr }

@.str.1 = external hidden unnamed_addr constant [1 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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare hidden void @luaC_step(ptr noundef) #1

declare hidden ptr @luaS_newlstr(ptr noundef, ptr noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @lua_concat(ptr noundef %0, i32 noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %7 = load i32, ptr %4, align 4, !tbaa !9
  %8 = icmp sge i32 %7, 2
  br i1 %8, label %9, label %21

9:                                                ; preds = %2
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.lua_State, ptr %10, i32 0, i32 5
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = getelementptr inbounds %struct.global_State, ptr %12, i32 0, i32 3
  %14 = load i64, ptr %13, align 8, !tbaa !16
  %15 = icmp sgt i64 %14, 0
  br i1 %15, label %16, label %18

16:                                               ; preds = %9
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  call void @luaC_step(ptr noundef %17)
  br label %18

18:                                               ; preds = %16, %9
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = load i32, ptr %4, align 4, !tbaa !9
  call void @luaV_concat(ptr noundef %19, i32 noundef %20)
  br label %45

21:                                               ; preds = %2
  %22 = load i32, ptr %4, align 4, !tbaa !9
  %23 = icmp eq i32 %22, 0
  br i1 %23, label %24, label %44

24:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.lua_State, ptr %25, i32 0, i32 4
  %27 = load ptr, ptr %26, align 8, !tbaa !21
  store ptr %27, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = call ptr @luaS_newlstr(ptr noundef %28, ptr noundef @.str.1, i64 noundef 0)
  store ptr %29, ptr %6, align 8, !tbaa !5
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.lua_TValue, ptr %31, i32 0, i32 0
  store ptr %30, ptr %32, align 8, !tbaa !22
  %33 = load ptr, ptr %6, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.TString, ptr %33, i32 0, i32 1
  %35 = load i8, ptr %34, align 8, !tbaa !23
  %36 = zext i8 %35 to i32
  %37 = or i32 %36, 64
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.lua_TValue, ptr %38, i32 0, i32 1
  store i32 %37, ptr %39, align 8, !tbaa !25
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  %40 = load ptr, ptr %3, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.lua_State, ptr %40, i32 0, i32 4
  %42 = load ptr, ptr %41, align 8, !tbaa !21
  %43 = getelementptr inbounds %struct.lua_TValue, ptr %42, i32 1
  store ptr %43, ptr %41, align 8, !tbaa !21
  br label %44

44:                                               ; preds = %24, %21
  br label %45

45:                                               ; preds = %44, %18
  ret void
}

declare hidden void @luaV_concat(ptr noundef, i32 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 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 }

!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 = !{!12, !6, i64 24}
!12 = !{!"lua_State", !6, i64 0, !7, i64 8, !7, i64 9, !7, i64 10, !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, !13, i64 96, !6, i64 168, !14, i64 176, !10, i64 184, !10, i64 188, !10, i64 192, !15, i64 196, !15, i64 198, !7, i64 200, !7, i64 201}
!13 = !{!"CallInfo", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !7, i64 32, !14, i64 56, !15, i64 64, !7, i64 66}
!14 = !{!"long", !7, i64 0}
!15 = !{!"short", !7, i64 0}
!16 = !{!17, !14, i64 24}
!17 = !{!"global_State", !6, i64 0, !6, i64 8, !14, i64 16, !14, i64 24, !14, i64 32, !14, i64 40, !18, i64 48, !19, i64 64, !10, i64 80, !7, i64 84, !7, i64 85, !7, i64 86, !7, i64 87, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !6, i64 168, !20, i64 176, !10, i64 200, !10, i64 204, !10, i64 208, !6, i64 216, !6, i64 224, !6, i64 232, !6, i64 240, !7, i64 248, !7, i64 440}
!18 = !{!"stringtable", !6, i64 0, !10, i64 8, !10, i64 12}
!19 = !{!"lua_TValue", !7, i64 0, !10, i64 8}
!20 = !{!"Mbuffer", !6, i64 0, !14, i64 8, !14, i64 16}
!21 = !{!12, !6, i64 16}
!22 = !{!7, !7, i64 0}
!23 = !{!24, !7, i64 8}
!24 = !{!"TString", !6, i64 0, !7, i64 8, !7, i64 9, !7, i64 10, !10, i64 12, !14, i64 16, !6, i64 24}
!25 = !{!19, !10, i64 8}


; 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"

@.str.1 = external hidden unnamed_addr constant [1 x i8], align 1

declare hidden void @luaC_step(ptr noundef) local_unnamed_addr #0

declare hidden ptr @luaS_newlstr(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @lua_concat(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = icmp sgt i32 %1, 1
  br i1 %3, label %4, label %12

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 24
  %8 = load i64, ptr %7, align 8, !tbaa !14
  %9 = icmp sgt i64 %8, 0
  br i1 %9, label %10, label %11

10:                                               ; preds = %4
  tail call void @luaC_step(ptr noundef nonnull %0) #2
  br label %11

11:                                               ; preds = %10, %4
  tail call void @luaV_concat(ptr noundef nonnull %0, i32 noundef %1) #2
  br label %25

12:                                               ; preds = %2
  %13 = icmp eq i32 %1, 0
  br i1 %13, label %14, label %25

14:                                               ; preds = %12
  %15 = getelementptr inbounds i8, ptr %0, i64 16
  %16 = load ptr, ptr %15, align 8, !tbaa !19
  %17 = tail call ptr @luaS_newlstr(ptr noundef %0, ptr noundef nonnull @.str.1, i64 noundef 0) #2
  store ptr %17, ptr %16, align 8, !tbaa !20
  %18 = getelementptr inbounds i8, ptr %17, i64 8
  %19 = load i8, ptr %18, align 8, !tbaa !21
  %20 = or i8 %19, 64
  %21 = zext i8 %20 to i32
  %22 = getelementptr inbounds i8, ptr %16, i64 8
  store i32 %21, ptr %22, align 8, !tbaa !23
  %23 = load ptr, ptr %15, align 8, !tbaa !19
  %24 = getelementptr inbounds i8, ptr %23, i64 16
  store ptr %24, ptr %15, align 8, !tbaa !19
  br label %25

25:                                               ; preds = %12, %14, %11
  ret void
}

declare hidden void @luaV_concat(ptr noundef, i32 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 = { 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 #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 24}
!6 = !{!"lua_State", !7, i64 0, !8, i64 8, !8, i64 9, !8, i64 10, !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, !10, i64 96, !7, i64 168, !11, i64 176, !13, i64 184, !13, i64 188, !13, i64 192, !12, i64 196, !12, i64 198, !8, i64 200, !8, i64 201}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"CallInfo", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !8, i64 32, !11, i64 56, !12, i64 64, !8, i64 66}
!11 = !{!"long", !8, i64 0}
!12 = !{!"short", !8, i64 0}
!13 = !{!"int", !8, i64 0}
!14 = !{!15, !11, i64 24}
!15 = !{!"global_State", !7, i64 0, !7, i64 8, !11, i64 16, !11, i64 24, !11, i64 32, !11, i64 40, !16, i64 48, !17, i64 64, !13, i64 80, !8, i64 84, !8, i64 85, !8, i64 86, !8, i64 87, !7, i64 88, !7, i64 96, !7, i64 104, !7, i64 112, !7, i64 120, !7, i64 128, !7, i64 136, !7, i64 144, !7, i64 152, !7, i64 160, !7, i64 168, !18, i64 176, !13, i64 200, !13, i64 204, !13, i64 208, !7, i64 216, !7, i64 224, !7, i64 232, !7, i64 240, !8, i64 248, !8, i64 440}
!16 = !{!"stringtable", !7, i64 0, !13, i64 8, !13, i64 12}
!17 = !{!"lua_TValue", !8, i64 0, !13, i64 8}
!18 = !{!"Mbuffer", !7, i64 0, !11, i64 8, !11, i64 16}
!19 = !{!6, !7, i64 16}
!20 = !{!8, !8, i64 0}
!21 = !{!22, !8, i64 8}
!22 = !{!"TString", !7, i64 0, !8, i64 8, !8, i64 9, !8, i64 10, !13, i64 12, !11, i64 16, !7, i64 24}
!23 = !{!17, !13, i64 8}


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