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

; 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 }

; Function Attrs: nounwind uwtable
define hidden void @lj_state_relimitstack(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds %struct.lua_State, ptr %3, i32 0, i32 0
  %5 = getelementptr inbounds %struct.anon, ptr %4, i32 0, i32 14
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %7 = icmp ugt i32 %6, 65506
  br i1 %7, label %8, label %27

8:                                                ; preds = %1
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.lua_State, ptr %9, i32 0, i32 0
  %11 = getelementptr inbounds %struct.anon, ptr %10, i32 0, i32 8
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.lua_State, ptr %13, i32 0, i32 0
  %15 = getelementptr inbounds %struct.anon, ptr %14, i32 0, i32 10
  %16 = getelementptr inbounds %struct.MRef, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = zext i32 %17 to i64
  %19 = inttoptr i64 %18 to ptr
  %20 = ptrtoint ptr %12 to i64
  %21 = ptrtoint ptr %19 to i64
  %22 = sub i64 %20, %21
  %23 = sdiv exact i64 %22, 8
  %24 = icmp slt i64 %23, 65499
  br i1 %24, label %25, label %27

25:                                               ; preds = %8
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  call void @resizestack(ptr noundef %26, i32 noundef 65500)
  br label %27

27:                                               ; preds = %25, %8, %1
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @resizestack(ptr noundef, i32 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" }

!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 = !{!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: nounwind uwtable
define hidden void @lj_state_relimitstack(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 56
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = icmp ugt i32 %3, 65506
  br i1 %4, label %5, label %15

5:                                                ; preds = %1
  %6 = getelementptr inbounds i8, ptr %0, i64 24
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 36
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = zext i32 %9 to i64
  %11 = ptrtoint ptr %7 to i64
  %12 = sub i64 %11, %10
  %13 = icmp slt i64 %12, 523992
  br i1 %13, label %14, label %15

14:                                               ; preds = %5
  tail call void @resizestack(ptr noundef nonnull %0, i32 noundef 65500)
  br label %15

15:                                               ; preds = %14, %5, %1
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @resizestack(ptr noundef, i32 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" }

!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"}


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