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

; 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 }
%struct.anon.1 = type { %union.anon.2, i32 }
%union.anon.2 = type { %struct.GCRef }

; 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: noreturn
declare hidden void @lj_err_argt(ptr noundef, i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define hidden double @lj_lib_checknum(ptr noundef %0, i32 noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.lua_State, ptr %6, i32 0, i32 0
  %8 = getelementptr inbounds %struct.anon, ptr %7, i32 0, i32 7
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  %10 = load i32, ptr %4, align 4, !tbaa !9
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds %union.TValue, ptr %9, i64 %11
  %13 = getelementptr inbounds %union.TValue, ptr %12, i64 -1
  store ptr %13, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.lua_State, ptr %15, i32 0, i32 0
  %17 = getelementptr inbounds %struct.anon, ptr %16, i32 0, i32 8
  %18 = load ptr, ptr %17, align 8, !tbaa !11
  %19 = icmp ult ptr %14, %18
  br i1 %19, label %20, label %40

20:                                               ; preds = %2
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.anon.1, ptr %21, i32 0, i32 1
  %23 = load i32, ptr %22, align 4, !tbaa !11
  %24 = icmp ule i32 %23, -65537
  br i1 %24, label %43, label %25

25:                                               ; preds = %20
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.anon.1, ptr %26, i32 0, i32 1
  %28 = load i32, ptr %27, align 4, !tbaa !11
  %29 = icmp eq i32 %28, -5
  br i1 %29, label %30, label %40

30:                                               ; preds = %25
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.anon.1, ptr %31, i32 0, i32 0
  %33 = getelementptr inbounds %struct.GCRef, ptr %32, i32 0, i32 0
  %34 = load i32, ptr %33, align 8, !tbaa !11
  %35 = zext i32 %34 to i64
  %36 = inttoptr i64 %35 to ptr
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = call i32 @lj_strscan_num(ptr noundef %36, ptr noundef %37)
  %39 = icmp ne i32 %38, 0
  br i1 %39, label %43, label %40

40:                                               ; preds = %30, %25, %2
  %41 = load ptr, ptr %3, align 8, !tbaa !5
  %42 = load i32, ptr %4, align 4, !tbaa !9
  call void @lj_err_argt(ptr noundef %41, i32 noundef %42, i32 noundef 3) #5
  unreachable

43:                                               ; preds = %30, %20
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = load double, ptr %44, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret double %45
}

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noreturn "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 }
attributes #5 = { noreturn }

!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"

%union.TValue = type { i64 }

; Function Attrs: noreturn
declare hidden void @lj_err_argt(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define hidden double @lj_lib_checknum(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = getelementptr inbounds i8, ptr %0, i64 16
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = sext i32 %1 to i64
  %6 = getelementptr inbounds %union.TValue, ptr %4, i64 %5
  %7 = getelementptr inbounds i8, ptr %6, i64 -8
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = icmp ult ptr %7, %9
  br i1 %10, label %11, label %22

11:                                               ; preds = %2
  %12 = getelementptr inbounds i8, ptr %6, i64 -4
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = icmp ult i32 %13, -65536
  br i1 %14, label %23, label %15

15:                                               ; preds = %11
  %16 = icmp eq i32 %13, -5
  br i1 %16, label %17, label %22

17:                                               ; preds = %15
  %18 = load i32, ptr %7, align 8, !tbaa !5
  %19 = zext i32 %18 to i64
  %20 = inttoptr i64 %19 to ptr
  %21 = tail call i32 @lj_strscan_num(ptr noundef %20, ptr noundef nonnull %7) #3
  %.not = icmp eq i32 %21, 0
  br i1 %.not, label %22, label %23

22:                                               ; preds = %17, %15, %2
  tail call void @lj_err_argt(ptr noundef nonnull %0, i32 noundef %1, i32 noundef 3) #4
  unreachable

23:                                               ; preds = %17, %11
  %24 = load double, ptr %7, align 8, !tbaa !5
  ret double %24
}

declare hidden i32 @lj_strscan_num(ptr noundef, ptr noundef) local_unnamed_addr #2

attributes #0 = { noreturn "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 = { "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 }
attributes #4 = { noreturn 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"}


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