; LLVM IR from paintdream/DontStarveLuaJIT :: src/luajit/src (lj_api)

; 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 { %union.anon }
%union.anon = type { %struct.anon, [320 x i8] }
%struct.anon = type { %struct.GCRef, i8, i8, i8, i8, %struct.MRef, %struct.GCRef, ptr, ptr, %struct.MRef, %struct.MRef, %struct.GCRef, %struct.GCRef, ptr, i32 }
%struct.MRef = type { i32 }
%struct.GCRef = type { i32 }
%union.TValue = type { i64 }

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden void @copyTV(ptr noundef, ptr noundef, ptr noundef) #1

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

; Function Attrs: nounwind uwtable
declare hidden ptr @index2adr(ptr noundef, i32 noundef) #2

declare hidden void @lj_state_growstack1(ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local ptr @lua_getupvalue(ptr noundef %0, i32 noundef %1, i32 noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = call ptr @index2adr(ptr noundef %9, i32 noundef %10)
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = sub nsw i32 %12, 1
  %14 = call ptr @lj_debug_uvnamev(ptr noundef %11, i32 noundef %13, ptr noundef %7)
  store ptr %14, ptr %8, align 8, !tbaa !5
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %42

17:                                               ; preds = %3
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.lua_State, ptr %19, i32 0, i32 0
  %21 = getelementptr inbounds %struct.anon, ptr %20, i32 0, i32 8
  %22 = load ptr, ptr %21, align 8, !tbaa !11
  %23 = load ptr, ptr %7, align 8, !tbaa !5
  call void @copyTV(ptr noundef %18, ptr noundef %22, ptr noundef %23)
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.lua_State, ptr %24, i32 0, i32 0
  %26 = getelementptr inbounds %struct.anon, ptr %25, i32 0, i32 8
  %27 = load ptr, ptr %26, align 8, !tbaa !11
  %28 = getelementptr inbounds %union.TValue, ptr %27, i32 1
  store ptr %28, ptr %26, align 8, !tbaa !11
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.lua_State, ptr %29, i32 0, i32 0
  %31 = getelementptr inbounds %struct.anon, ptr %30, i32 0, i32 9
  %32 = getelementptr inbounds %struct.MRef, ptr %31, i32 0, i32 0
  %33 = load i32, ptr %32, align 8, !tbaa !11
  %34 = zext i32 %33 to i64
  %35 = inttoptr i64 %34 to ptr
  %36 = icmp uge ptr %28, %35
  br i1 %36, label %37, label %39

37:                                               ; preds = %17
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  call void @lj_state_growstack1(ptr noundef %38)
  br label %39

39:                                               ; preds = %37, %17
  %40 = phi i1 [ false, %17 ], [ false, %37 ]
  %41 = zext i1 %40 to i32
  br label %42

42:                                               ; preds = %39, %3
  %43 = load ptr, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret ptr %43
}

declare hidden ptr @lj_debug_uvnamev(ptr noundef, i32 noundef, ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { alwaysinline 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 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 = { "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 #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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: alwaysinline nounwind uwtable
declare hidden void @copyTV(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

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

; Function Attrs: nounwind uwtable
declare hidden ptr @index2adr(ptr noundef, i32 noundef) local_unnamed_addr #2

declare hidden void @lj_state_growstack1(ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local ptr @lua_getupvalue(ptr noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #2 {
  %4 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %5 = tail call ptr @index2adr(ptr noundef %0, i32 noundef %1)
  %6 = add nsw i32 %2, -1
  %7 = call ptr @lj_debug_uvnamev(ptr noundef %5, i32 noundef %6, ptr noundef nonnull %4) #4
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %19, label %8

8:                                                ; preds = %3
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8, !tbaa !8
  call void @copyTV(ptr noundef %0, ptr noundef %10, ptr noundef %11)
  %12 = load ptr, ptr %9, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %12, i64 8
  store ptr %13, ptr %9, align 8, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %0, i64 32
  %15 = load i32, ptr %14, align 8, !tbaa !5
  %16 = zext i32 %15 to i64
  %17 = inttoptr i64 %16 to ptr
  %.not9 = icmp ult ptr %13, %17
  br i1 %.not9, label %19, label %18

18:                                               ; preds = %8
  call void @lj_state_growstack1(ptr noundef nonnull %0) #4
  br label %19

19:                                               ; preds = %8, %18, %3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  ret ptr %7
}

declare hidden ptr @lj_debug_uvnamev(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { alwaysinline 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 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 = { "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 #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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"any pointer", !6, i64 0}


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