; LLVM IR from turi-code/SFrame :: oss_src/fileio/oss_webstor/sysutils.ll (ZN7webstor8internal7Timeout4leftEv)

; 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"

%"class.webstor::internal::Timeout" = type { i32, i64 }

; 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: mustprogress nounwind uwtable
declare hidden noundef i64 @_ZN7webstor8internalL14GetTickCount64Ev() #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7webstor8internal7Timeout4leftEv(ptr noundef nonnull align 8 dereferenceable(16) %0) #2 align 2 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  %6 = getelementptr inbounds %"class.webstor::internal::Timeout", ptr %5, i32 0, i32 0
  %7 = load i32, ptr %6, align 8, !tbaa !9
  %8 = icmp eq i32 %7, 0
  br i1 %8, label %9, label %10

9:                                                ; preds = %1
  store i32 0, ptr %2, align 4
  br label %31

10:                                               ; preds = %1
  %11 = getelementptr inbounds %"class.webstor::internal::Timeout", ptr %5, i32 0, i32 0
  %12 = load i32, ptr %11, align 8, !tbaa !9
  %13 = icmp eq i32 %12, -1
  br i1 %13, label %14, label %15

14:                                               ; preds = %10
  store i32 -1, ptr %2, align 4
  br label %31

15:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %16 = getelementptr inbounds %"class.webstor::internal::Timeout", ptr %5, i32 0, i32 1
  %17 = load i64, ptr %16, align 8, !tbaa !13
  %18 = call noundef i64 @_ZN7webstor8internalL14GetTickCount64Ev()
  %19 = sub i64 %17, %18
  store i64 %19, ptr %4, align 8, !tbaa !14
  %20 = load i64, ptr %4, align 8, !tbaa !14
  %21 = getelementptr inbounds %"class.webstor::internal::Timeout", ptr %5, i32 0, i32 0
  %22 = load i32, ptr %21, align 8, !tbaa !9
  %23 = zext i32 %22 to i64
  %24 = icmp ugt i64 %20, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %15
  br label %29

26:                                               ; preds = %15
  %27 = load i64, ptr %4, align 8, !tbaa !14
  %28 = trunc i64 %27 to i32
  br label %29

29:                                               ; preds = %26, %25
  %30 = phi i32 [ 0, %25 ], [ %28, %26 ]
  store i32 %30, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %31

31:                                               ; preds = %29, %14, %9
  %32 = load i32, ptr %2, align 4
  ret i32 %32
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { mustprogress 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 = { 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++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSN7webstor8internal7TimeoutE", !11, i64 0, !12, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = !{!10, !12, i64 8}
!14 = !{!12, !12, 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"

; Function Attrs: mustprogress nounwind uwtable
declare hidden noundef i64 @_ZN7webstor8internalL14GetTickCount64Ev() local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN7webstor8internal7Timeout4leftEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0) local_unnamed_addr #0 align 2 {
  %2 = load i32, ptr %0, align 8, !tbaa !5
  switch i32 %2, label %3 [
    i32 0, label %13
    i32 -1, label %13
  ]

3:                                                ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i64, ptr %4, align 8, !tbaa !11
  %6 = tail call noundef i64 @_ZN7webstor8internalL14GetTickCount64Ev()
  %7 = sub i64 %5, %6
  %8 = load i32, ptr %0, align 8, !tbaa !5
  %9 = zext i32 %8 to i64
  %10 = icmp ugt i64 %7, %9
  %11 = trunc i64 %7 to i32
  %12 = select i1 %10, i32 0, i32 %11
  br label %13

13:                                               ; preds = %1, %1, %3
  %.0 = phi i32 [ %12, %3 ], [ %2, %1 ], [ %2, %1 ]
  ret i32 %.0
}

attributes #0 = { mustprogress 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" }

!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, !7, i64 0}
!6 = !{!"_ZTSN7webstor8internal7TimeoutE", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long long", !8, i64 0}
!11 = !{!6, !10, i64 8}


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