; LLVM IR from dartsim/dart :: dart/common/VersionCounter.ll (ZN4dart6common14VersionCounter16incrementVersionEv)

; 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.dart::common::VersionCounter" = type { ptr, i64, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZN4dart6common14VersionCounter16incrementVersionEv(ptr noundef nonnull align 8 dereferenceable(24) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.dart::common::VersionCounter", ptr %3, i32 0, i32 1
  %5 = load i64, ptr %4, align 8, !tbaa !9
  %6 = add i64 %5, 1
  store i64 %6, ptr %4, align 8, !tbaa !9
  %7 = getelementptr inbounds %"class.dart::common::VersionCounter", ptr %3, i32 0, i32 2
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %17

10:                                               ; preds = %1
  %11 = getelementptr inbounds %"class.dart::common::VersionCounter", ptr %3, i32 0, i32 2
  %12 = load ptr, ptr %11, align 8, !tbaa !12
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %14 = getelementptr inbounds ptr, ptr %13, i64 0
  %15 = load ptr, ptr %14, align 8
  %16 = call noundef i64 %15(ptr noundef nonnull align 8 dereferenceable(24) %12)
  br label %17

17:                                               ; preds = %10, %1
  %18 = getelementptr inbounds %"class.dart::common::VersionCounter", ptr %3, i32 0, i32 1
  %19 = load i64, ptr %18, align 8, !tbaa !9
  ret i64 %19
}

attributes #0 = { 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" }

!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 8}
!10 = !{!"_ZTSN4dart6common14VersionCounterE", !11, i64 8, !6, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !6, i64 16}
!13 = !{!14, !14, i64 0}
!14 = !{!"vtable pointer", !8, 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 uwtable
define dso_local noundef i64 @_ZN4dart6common14VersionCounter16incrementVersionEv(ptr nocapture noundef nonnull align 8 dereferenceable(24) %0) unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %4 = add i64 %3, 1
  store i64 %4, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  %6 = load ptr, ptr %5, align 8, !tbaa !11
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %11, label %7

7:                                                ; preds = %1
  %8 = load ptr, ptr %6, align 8, !tbaa !12
  %9 = load ptr, ptr %8, align 8
  %10 = tail call noundef i64 %9(ptr noundef nonnull align 8 dereferenceable(24) %6)
  %.pre = load i64, ptr %2, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %7, %1
  %12 = phi i64 [ %.pre, %7 ], [ %4, %1 ]
  ret i64 %12
}

attributes #0 = { 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" }

!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 8}
!6 = !{!"_ZTSN4dart6common14VersionCounterE", !7, i64 8, !10, i64 16}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!13, !13, i64 0}
!13 = !{!"vtable pointer", !9, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass