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

; 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_TValue = type { %union.Value, i32 }
%union.Value = type { ptr }

; 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 ptr @luaV_tonumber(ptr noundef, ptr noundef) #2

; 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 %struct.lua_TValue, align 8
  %7 = alloca ptr, 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 16, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %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 %7, align 8, !tbaa !5
  %12 = load ptr, ptr %7, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.lua_TValue, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 8, !tbaa !11
  %15 = icmp eq i32 %14, 3
  br i1 %15, label %20, label %16

16:                                               ; preds = %2
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = call ptr @luaV_tonumber(ptr noundef %17, ptr noundef %6)
  store ptr %18, ptr %7, align 8, !tbaa !5
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %24

20:                                               ; preds = %16, %2
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.lua_TValue, ptr %21, i32 0, i32 0
  %23 = load double, ptr %22, align 8, !tbaa !13
  store double %23, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %25

24:                                               ; preds = %16
  store double 0.000000e+00, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %25

25:                                               ; preds = %24, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %6) #3
  %26 = load double, ptr %3, align 8
  ret double %26
}

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 = { 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 = !{!12, !10, i64 8}
!12 = !{!"lua_TValue", !7, i64 0, !10, i64 8}
!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"

%struct.lua_TValue = type { %union.Value, i32 }
%union.Value = type { ptr }

; 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 ptr @luaV_tonumber(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local double @lua_tonumber(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = alloca %struct.lua_TValue, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #3
  %4 = tail call ptr @index2adr(ptr noundef %0, i32 noundef %1)
  %5 = getelementptr inbounds i8, ptr %4, i64 8
  %6 = load i32, ptr %5, align 8, !tbaa !5
  %7 = icmp eq i32 %6, 3
  br i1 %7, label %10, label %8

8:                                                ; preds = %2
  %9 = call ptr @luaV_tonumber(ptr noundef nonnull %4, ptr noundef nonnull %3) #3
  %.not = icmp eq ptr %9, null
  br i1 %.not, label %12, label %10

10:                                               ; preds = %8, %2
  %.0 = phi ptr [ %4, %2 ], [ %9, %8 ]
  %11 = load double, ptr %.0, align 8, !tbaa !10
  br label %12

12:                                               ; preds = %8, %10
  %.05 = phi double [ %11, %10 ], [ 0.000000e+00, %8 ]
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #3
  ret double %.05
}

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 = { 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, !9, i64 8}
!6 = !{!"lua_TValue", !7, i64 0, !9, i64 8}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{!7, !7, i64 0}


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