; 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

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden double @numberVnum(ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local double @lua_tonumber(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca double, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca %union.TValue, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %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)
  store ptr %11, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.anon.0, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 4, !tbaa !11
  %15 = icmp ule i32 %14, -65537
  %16 = xor i1 %15, true
  %17 = xor i1 %16, true
  %18 = zext i1 %17 to i32
  %19 = sext i32 %18 to i64
  %20 = call i64 @llvm.expect.i64(i64 %19, i64 1)
  %21 = icmp ne i64 %20, 0
  br i1 %21, label %22, label %25

22:                                               ; preds = %2
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = call double @numberVnum(ptr noundef %23)
  store double %24, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %42

25:                                               ; preds = %2
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.anon.0, 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 %41

30:                                               ; preds = %25
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.anon.0, 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 = call i32 @lj_strscan_num(ptr noundef %36, ptr noundef %7)
  %38 = icmp ne i32 %37, 0
  br i1 %38, label %39, label %41

39:                                               ; preds = %30
  %40 = load double, ptr %7, align 8, !tbaa !11
  store double %40, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %42

41:                                               ; preds = %30, %25
  store double 0.000000e+00, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %42

42:                                               ; preds = %41, %39, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  %43 = load double, ptr %3, align 8
  ret double %43
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
declare i64 @llvm.expect.i64(i64, i64) #4

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 = { "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 = { 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 #4 = { nocallback nofree nosync nounwind willreturn memory(none) }
attributes #5 = { 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"

%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

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden double @numberVnum(ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local double @lua_tonumber(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = alloca %union.TValue, align 8
  %4 = tail call ptr @index2adr(ptr noundef %0, i32 noundef %1)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %5 = getelementptr inbounds i8, ptr %4, i64 4
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %7 = icmp ult i32 %6, -65536
  br i1 %7, label %8, label %10, !prof !8

8:                                                ; preds = %2
  %9 = tail call double @numberVnum(ptr noundef nonnull %4)
  br label %19

10:                                               ; preds = %2
  %11 = icmp eq i32 %6, -5
  br i1 %11, label %12, label %19

12:                                               ; preds = %10
  %13 = load i32, ptr %4, 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 %3) #4
  %.not = icmp eq i32 %16, 0
  br i1 %.not, label %19, label %17

17:                                               ; preds = %12
  %18 = load double, ptr %3, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %10, %12, %17, %8
  %.0 = phi double [ %9, %8 ], [ %18, %17 ], [ 0.000000e+00, %12 ], [ 0.000000e+00, %10 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  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 = { "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 = { 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 #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 = !{!"branch_weights", !"expected", i32 2000, i32 1}


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