; LLVM IR from gem5/gem5 :: ext/systemc/src/sysc/kernel (sc_event)

; 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.sc_core::sc_event_list" = type { %"class.std::vector.31", i8, i8, i32 }
%"class.std::vector.31" = type { %"struct.std::_Vector_base.32" }
%"struct.std::_Vector_base.32" = type { %"struct.std::_Vector_base<const sc_core::sc_event *, std::allocator<const sc_core::sc_event *>>::_Vector_impl" }
%"struct.std::_Vector_base<const sc_core::sc_event *, std::allocator<const sc_core::sc_event *>>::_Vector_impl" = type { %"struct.std::_Vector_base<const sc_core::sc_event *, std::allocator<const sc_core::sc_event *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<const sc_core::sc_event *, std::allocator<const sc_core::sc_event *>>::_Vector_impl_data" = type { ptr, ptr, 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: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK7sc_core8sc_event14remove_dynamicEPNS_17sc_method_processE(ptr noundef nonnull align 8 dereferenceable(160), ptr noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK7sc_core13sc_event_list14remove_dynamicEPNS_17sc_method_processEPKNS_8sc_eventE(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef %1, ptr noundef %2) #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8
  %11 = getelementptr inbounds %"class.sc_core::sc_event_list", ptr %10, i32 0, i32 0
  %12 = call noundef i64 @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #3
  %13 = icmp ne i64 %12, 0
  br i1 %13, label %14, label %43

14:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %15 = getelementptr inbounds %"class.sc_core::sc_event_list", ptr %10, i32 0, i32 0
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %15, i64 noundef 0) #3
  store ptr %16, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %17 = getelementptr inbounds %"class.sc_core::sc_event_list", ptr %10, i32 0, i32 0
  %18 = call noundef i64 @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %17) #3
  %19 = sub i64 %18, 1
  %20 = trunc i64 %19 to i32
  store i32 %20, ptr %8, align 4, !tbaa !9
  br label %21

21:                                               ; preds = %39, %14
  %22 = load i32, ptr %8, align 4, !tbaa !9
  %23 = icmp sge i32 %22, 0
  br i1 %23, label %25, label %24

24:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %42

25:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  %27 = load i32, ptr %8, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds ptr, ptr %26, i64 %28
  %30 = load ptr, ptr %29, align 8, !tbaa !5
  store ptr %30, ptr %9, align 8, !tbaa !5
  %31 = load ptr, ptr %9, align 8, !tbaa !5
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = icmp ne ptr %31, %32
  br i1 %33, label %34, label %38

34:                                               ; preds = %25
  %35 = load ptr, ptr %9, align 8, !tbaa !5
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = call noundef zeroext i1 @_ZNK7sc_core8sc_event14remove_dynamicEPNS_17sc_method_processE(ptr noundef nonnull align 8 dereferenceable(160) %35, ptr noundef %36)
  br label %38

38:                                               ; preds = %34, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %39

39:                                               ; preds = %38
  %40 = load i32, ptr %8, align 4, !tbaa !9
  %41 = add nsw i32 %40, -1
  store i32 %41, ptr %8, align 4, !tbaa !9
  br label %21, !llvm.loop !11

42:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %43

43:                                               ; preds = %42, %3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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
declare dso_local noundef zeroext i1 @_ZNK7sc_core8sc_event14remove_dynamicEPNS_17sc_method_processE(ptr noundef nonnull align 8 dereferenceable(160), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK7sc_core13sc_event_list14remove_dynamicEPNS_17sc_method_processEPKNS_8sc_eventE(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef %1, ptr noundef readnone %2) local_unnamed_addr #0 align 2 {
  %4 = tail call noundef i64 @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  %.not = icmp eq i64 %4, 0
  br i1 %.not, label %.loopexit, label %5

5:                                                ; preds = %3
  %6 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #2
  %7 = tail call noundef i64 @_ZNKSt6vectorIPKN7sc_core8sc_eventESaIS3_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  %8 = trunc i64 %7 to i32
  %.010 = add i32 %8, -1
  %9 = icmp sgt i32 %.010, -1
  br i1 %9, label %.lr.ph.preheader, label %.loopexit

.lr.ph.preheader:                                 ; preds = %5
  %10 = zext nneg i32 %.010 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %15
  %indvars.iv = phi i64 [ %10, %.lr.ph.preheader ], [ %indvars.iv.next, %15 ]
  %11 = getelementptr inbounds ptr, ptr %6, i64 %indvars.iv
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  %.not9 = icmp eq ptr %12, %2
  br i1 %.not9, label %15, label %13

13:                                               ; preds = %.lr.ph
  %14 = tail call noundef zeroext i1 @_ZNK7sc_core8sc_event14remove_dynamicEPNS_17sc_method_processE(ptr noundef nonnull align 8 dereferenceable(160) %12, ptr noundef %1)
  br label %15

15:                                               ; preds = %13, %.lr.ph
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %16 = icmp sgt i64 %indvars.iv, 0
  br i1 %16, label %.lr.ph, label %.loopexit, !llvm.loop !9

.loopexit:                                        ; preds = %15, %5, %3
  ret void
}

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" }
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 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass