; LLVM IR from ramsdell/lineqpp :: lua (lgc)

; 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, i32, i32, i16, i16, i8, i8, i32, i32, ptr, %struct.lua_TValue, %struct.lua_TValue, ptr, ptr, ptr, i64 }
%struct.lua_TValue = type { %union.Value, i32 }
%union.Value = type { ptr }
%struct.global_State = type { %struct.stringtable, ptr, ptr, i8, i8, i32, ptr, ptr, ptr, ptr, ptr, ptr, %struct.Mbuffer, i64, i64, i64, i64, i32, i32, ptr, %struct.lua_TValue, ptr, %struct.UpVal, [9 x ptr], [17 x ptr] }
%struct.stringtable = type { ptr, i32, i32 }
%struct.Mbuffer = type { ptr, i64, i64 }
%struct.UpVal = type { ptr, i8, i8, ptr, %union.anon }
%union.anon = type { %struct.lua_TValue }

; 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

; Function Attrs: nounwind uwtable
define hidden void @luaC_freeall(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.lua_State, ptr %5, i32 0, i32 6
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %7, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.global_State, ptr %8, i32 0, i32 3
  store i8 67, ptr %9, align 8, !tbaa !15
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.global_State, ptr %11, i32 0, i32 6
  %13 = call ptr @sweeplist(ptr noundef %10, ptr noundef %12, i64 noundef -3)
  store i32 0, ptr %4, align 4, !tbaa !20
  br label %14

14:                                               ; preds = %31, %1
  %15 = load i32, ptr %4, align 4, !tbaa !20
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.global_State, ptr %16, i32 0, i32 0
  %18 = getelementptr inbounds %struct.stringtable, ptr %17, i32 0, i32 2
  %19 = load i32, ptr %18, align 4, !tbaa !21
  %20 = icmp slt i32 %15, %19
  br i1 %20, label %21, label %34

21:                                               ; preds = %14
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.global_State, ptr %23, i32 0, i32 0
  %25 = getelementptr inbounds %struct.stringtable, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !22
  %27 = load i32, ptr %4, align 4, !tbaa !20
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds ptr, ptr %26, i64 %28
  %30 = call ptr @sweeplist(ptr noundef %22, ptr noundef %29, i64 noundef -3)
  br label %31

31:                                               ; preds = %21
  %32 = load i32, ptr %4, align 4, !tbaa !20
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %4, align 4, !tbaa !20
  br label %14, !llvm.loop !23

34:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden ptr @sweeplist(ptr noundef, ptr noundef, i64 noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 32}
!10 = !{!"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, !11, i64 88, !11, i64 92, !12, i64 96, !12, i64 98, !7, i64 100, !7, i64 101, !11, i64 104, !11, i64 108, !6, i64 112, !13, i64 120, !13, i64 136, !6, i64 152, !6, i64 160, !6, i64 168, !14, i64 176}
!11 = !{!"int", !7, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = !{!"lua_TValue", !7, i64 0, !11, i64 8}
!14 = !{!"long", !7, i64 0}
!15 = !{!16, !7, i64 32}
!16 = !{!"global_State", !17, i64 0, !6, i64 16, !6, i64 24, !7, i64 32, !7, i64 33, !11, i64 36, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !18, i64 88, !14, i64 112, !14, i64 120, !14, i64 128, !14, i64 136, !11, i64 144, !11, i64 148, !6, i64 152, !13, i64 160, !6, i64 176, !19, i64 184, !7, i64 224, !7, i64 296}
!17 = !{!"stringtable", !6, i64 0, !11, i64 8, !11, i64 12}
!18 = !{!"Mbuffer", !6, i64 0, !14, i64 8, !14, i64 16}
!19 = !{!"UpVal", !6, i64 0, !7, i64 8, !7, i64 9, !6, i64 16, !7, i64 24}
!20 = !{!11, !11, i64 0}
!21 = !{!16, !11, i64 12}
!22 = !{!16, !6, i64 0}
!23 = distinct !{!23, !24}
!24 = !{!"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"

; Function Attrs: nounwind uwtable
define hidden void @luaC_freeall(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 32
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %3, i64 32
  store i8 67, ptr %4, align 8, !tbaa !14
  %5 = getelementptr inbounds i8, ptr %3, i64 40
  %6 = tail call ptr @sweeplist(ptr noundef %0, ptr noundef nonnull %5, i64 noundef -3)
  %7 = getelementptr inbounds i8, ptr %3, i64 12
  %8 = load i32, ptr %7, align 4, !tbaa !19
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %1 ]
  %10 = load ptr, ptr %3, align 8, !tbaa !20
  %11 = getelementptr inbounds ptr, ptr %10, i64 %indvars.iv
  %12 = tail call ptr @sweeplist(ptr noundef %0, ptr noundef %11, i64 noundef -3)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %13 = load i32, ptr %7, align 4, !tbaa !19
  %14 = sext i32 %13 to i64
  %15 = icmp slt i64 %indvars.iv.next, %14
  br i1 %15, label %.lr.ph, label %._crit_edge, !llvm.loop !21

._crit_edge:                                      ; preds = %.lr.ph, %1
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden ptr @sweeplist(ptr noundef, ptr noundef, i64 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, !7, i64 32}
!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, !10, i64 88, !10, i64 92, !11, i64 96, !11, i64 98, !8, i64 100, !8, i64 101, !10, i64 104, !10, i64 108, !7, i64 112, !12, i64 120, !12, i64 136, !7, i64 152, !7, i64 160, !7, i64 168, !13, i64 176}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"short", !8, i64 0}
!12 = !{!"lua_TValue", !8, i64 0, !10, i64 8}
!13 = !{!"long", !8, i64 0}
!14 = !{!15, !8, i64 32}
!15 = !{!"global_State", !16, i64 0, !7, i64 16, !7, i64 24, !8, i64 32, !8, i64 33, !10, i64 36, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !17, i64 88, !13, i64 112, !13, i64 120, !13, i64 128, !13, i64 136, !10, i64 144, !10, i64 148, !7, i64 152, !12, i64 160, !7, i64 176, !18, i64 184, !8, i64 224, !8, i64 296}
!16 = !{!"stringtable", !7, i64 0, !10, i64 8, !10, i64 12}
!17 = !{!"Mbuffer", !7, i64 0, !13, i64 8, !13, i64 16}
!18 = !{!"UpVal", !7, i64 0, !8, i64 8, !8, i64 9, !7, i64 16, !8, i64 24}
!19 = !{!15, !10, i64 12}
!20 = !{!15, !7, i64 0}
!21 = distinct !{!21, !22}
!22 = !{!"llvm.loop.mustprogress"}


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