; 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"

%union.TValue = type { i64 }
%struct.anon.0 = type { %union.anon.1, i32 }
%union.anon.1 = type { %struct.GCRef }
%struct.GCRef = type { i32 }

; 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
declare hidden ptr @index2adr(ptr noundef, i32 noundef) #1

; Function Attrs: noreturn
declare hidden void @lj_err_argt(ptr noundef, i32 noundef, i32 noundef) #2

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden double @numberVnum(ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
declare i64 @llvm.expect.i64(i64, i64) #5

; Function Attrs: nounwind uwtable
define dso_local double @luaL_optnumber(ptr noundef %0, i32 noundef %1, double noundef %2) #1 {
  %4 = alloca double, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca double, align 8
  %8 = alloca ptr, align 8
  %9 = alloca %union.TValue, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store double %2, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = call ptr @index2adr(ptr noundef %11, i32 noundef %12)
  store ptr %13, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %14 = load ptr, ptr %8, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.anon.0, ptr %14, i32 0, i32 1
  %16 = load i32, ptr %15, align 4, !tbaa !13
  %17 = icmp ule i32 %16, -65537
  %18 = xor i1 %17, true
  %19 = xor i1 %18, true
  %20 = zext i1 %19 to i32
  %21 = sext i32 %20 to i64
  %22 = call i64 @llvm.expect.i64(i64 %21, i64 1)
  %23 = icmp ne i64 %22, 0
  br i1 %23, label %24, label %27

24:                                               ; preds = %3
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = call double @numberVnum(ptr noundef %25)
  store double %26, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %55

27:                                               ; preds = %3
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.anon.0, ptr %28, i32 0, i32 1
  %30 = load i32, ptr %29, align 4, !tbaa !13
  %31 = icmp eq i32 %30, -1
  br i1 %31, label %32, label %34

32:                                               ; preds = %27
  %33 = load double, ptr %7, align 8, !tbaa !11
  store double %33, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %55

34:                                               ; preds = %27
  %35 = load ptr, ptr %8, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.anon.0, ptr %35, i32 0, i32 1
  %37 = load i32, ptr %36, align 4, !tbaa !13
  %38 = icmp eq i32 %37, -5
  br i1 %38, label %39, label %48

39:                                               ; preds = %34
  %40 = load ptr, ptr %8, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.anon.0, ptr %40, i32 0, i32 0
  %42 = getelementptr inbounds %struct.GCRef, ptr %41, i32 0, i32 0
  %43 = load i32, ptr %42, align 8, !tbaa !13
  %44 = zext i32 %43 to i64
  %45 = inttoptr i64 %44 to ptr
  %46 = call i32 @lj_strscan_num(ptr noundef %45, ptr noundef %9)
  %47 = icmp ne i32 %46, 0
  br i1 %47, label %51, label %48

48:                                               ; preds = %39, %34
  %49 = load ptr, ptr %5, align 8, !tbaa !5
  %50 = load i32, ptr %6, align 4, !tbaa !9
  call void @lj_err_argt(ptr noundef %49, i32 noundef %50, i32 noundef 3) #7
  unreachable

51:                                               ; preds = %39
  br label %52

52:                                               ; preds = %51
  br label %53

53:                                               ; preds = %52
  %54 = load double, ptr %9, align 8, !tbaa !13
  store double %54, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %55

55:                                               ; preds = %53, %32, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  %56 = load double, ptr %4, align 8
  ret double %56
}

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 = { 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 #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 = { 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 #5 = { nocallback nofree nosync nounwind willreturn memory(none) }
attributes #6 = { nounwind }
attributes #7 = { 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 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; 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 #1

; Function Attrs: noreturn
declare hidden void @lj_err_argt(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden double @numberVnum(ptr noundef) local_unnamed_addr #4

; Function Attrs: nounwind uwtable
define dso_local double @luaL_optnumber(ptr noundef %0, i32 noundef %1, double noundef %2) local_unnamed_addr #1 {
  %4 = alloca %union.TValue, align 8
  %5 = tail call ptr @index2adr(ptr noundef %0, i32 noundef %1)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %6 = getelementptr inbounds i8, ptr %5, i64 4
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = icmp ult i32 %7, -65536
  br i1 %8, label %9, label %11, !prof !8

9:                                                ; preds = %3
  %10 = tail call double @numberVnum(ptr noundef nonnull %5)
  br label %20

11:                                               ; preds = %3
  %trunc = trunc i32 %7 to i16
  switch i16 %trunc, label %17 [
    i16 -1, label %20
    i16 -5, label %12
  ]

12:                                               ; preds = %11
  %13 = load i32, ptr %5, align 8, !tbaa !5
  %14 = zext i32 %13 to i64
  %15 = inttoptr i64 %14 to ptr
  %16 = call i32 @lj_strscan_num(ptr noundef %15, ptr noundef nonnull %4) #5
  %.not = icmp eq i32 %16, 0
  br i1 %.not, label %17, label %18

17:                                               ; preds = %11, %12
  call void @lj_err_argt(ptr noundef %0, i32 noundef %1, i32 noundef 3) #6
  unreachable

18:                                               ; preds = %12
  %19 = load double, ptr %4, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %11, %18, %9
  %.0 = phi double [ %10, %9 ], [ %19, %18 ], [ %2, %11 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  ret double %.0
}

attributes #0 = { mustprogress 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 = { 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 #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 = { 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 #5 = { nounwind }
attributes #6 = { 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"}
!8 = !{!"branch_weights", !"expected", i32 2000, i32 1}


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