; LLVM IR from aap/pdp6 :: fe6 (fe)

; 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"

@q = external dso_local global i64, align 8
@opened = external dso_local global i32, align 4
@addr = external dso_local global i32, align 4

; 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 dso_local i32 @endword(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @aclose(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca i64, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %4 = load i64, ptr @q, align 8, !tbaa !9
  store i64 %4, ptr %3, align 8, !tbaa !9
  %5 = call i32 @endword(ptr noundef @q)
  %6 = icmp ne i32 %5, 0
  br i1 %6, label %7, label %16

7:                                                ; preds = %1
  %8 = load i32, ptr @opened, align 4, !tbaa !5
  %9 = icmp ne i32 %8, 0
  br i1 %9, label %10, label %16

10:                                               ; preds = %7
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = icmp ne i32 %11, 0
  br i1 %12, label %13, label %16

13:                                               ; preds = %10
  %14 = load i32, ptr @addr, align 4, !tbaa !5
  %15 = load i64, ptr @q, align 8, !tbaa !9
  call void @deposit(i32 noundef %14, i64 noundef %15)
  br label %16

16:                                               ; preds = %13, %10, %7, %1
  %17 = load i64, ptr @q, align 8, !tbaa !9
  %18 = and i64 %17, 1048575
  %19 = trunc i64 %18 to i32
  store i32 %19, ptr @addr, align 4, !tbaa !5
  %20 = load i32, ptr @opened, align 4, !tbaa !5
  %21 = icmp ne i32 %20, 0
  br i1 %21, label %24, label %22

22:                                               ; preds = %16
  %23 = load i64, ptr %3, align 8, !tbaa !9
  store i64 %23, ptr @q, align 8, !tbaa !9
  br label %24

24:                                               ; preds = %22, %16
  store i32 0, ptr @opened, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

declare void @deposit(i32 noundef, i64 noundef) #2

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

@q = external dso_local global i64, align 8
@opened = external dso_local local_unnamed_addr global i32, align 4
@addr = external dso_local local_unnamed_addr global i32, align 4

; Function Attrs: nounwind uwtable
declare dso_local i32 @endword(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @aclose(i32 noundef %0) local_unnamed_addr #0 {
  %2 = load i64, ptr @q, align 8, !tbaa !5
  %3 = tail call i32 @endword(ptr noundef nonnull @q)
  %4 = icmp ne i32 %3, 0
  %5 = load i32, ptr @opened, align 4
  %6 = icmp ne i32 %5, 0
  %or.cond = select i1 %4, i1 %6, i1 false
  %7 = icmp ne i32 %0, 0
  %or.cond3 = and i1 %7, %or.cond
  br i1 %or.cond3, label %8, label %11

8:                                                ; preds = %1
  %9 = load i32, ptr @addr, align 4, !tbaa !9
  %10 = load i64, ptr @q, align 8, !tbaa !5
  tail call void @deposit(i32 noundef %9, i64 noundef %10) #2
  %.pr = load i32, ptr @opened, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %8, %1
  %12 = phi i32 [ %.pr, %8 ], [ %5, %1 ]
  %13 = load i64, ptr @q, align 8, !tbaa !5
  %14 = trunc i64 %13 to i32
  %15 = and i32 %14, 1048575
  store i32 %15, ptr @addr, align 4, !tbaa !9
  %.not = icmp eq i32 %12, 0
  br i1 %.not, label %16, label %17

16:                                               ; preds = %11
  store i64 %2, ptr @q, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %16, %11
  store i32 0, ptr @opened, align 4, !tbaa !9
  ret void
}

declare void @deposit(i32 noundef, i64 noundef) local_unnamed_addr #1

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" }
attributes #1 = { "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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass