; LLVM IR from gem5/gem5 :: src/systemc/tests/systemc/tracing/wif_trace/pct1/tx.ll (ZN6sio_tx4markEi)

; 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.sio_tx = type { %"class.sc_core::sc_module", %"class.sc_core::sc_in", %"class.sc_core::sc_in", %"class.sc_core::sc_out" }
%"class.sc_core::sc_module" = type { %"class.sc_core::sc_object", %"class.sc_core::sc_process_host", %"class.sc_core::sc_sensitive", %"class.sc_core::sc_sensitive_pos", %"class.sc_core::sc_sensitive_neg", i8, ptr, i32, ptr, ptr }
%"class.sc_core::sc_object" = type { ptr, ptr, %"class.std::vector", %"class.std::vector.0", %"class.std::__cxx11::basic_string", ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.sc_core::sc_process_host" = type { ptr }
%"class.sc_core::sc_sensitive" = type { ptr, i32, ptr }
%"class.sc_core::sc_sensitive_pos" = type { ptr, i32, ptr }
%"class.sc_core::sc_sensitive_neg" = type { ptr, i32, ptr }
%"class.sc_core::sc_in" = type { %"class.sc_core::sc_port", ptr, ptr, ptr, ptr }
%"class.sc_core::sc_port" = type { %"class.sc_core::sc_port_b" }
%"class.sc_core::sc_port_b" = type { %"class.sc_core::sc_port_base", ptr, %"class.std::vector.8" }
%"class.sc_core::sc_port_base" = type { %"class.sc_core::sc_object", ptr }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = type { %"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.sc_core::sc_out" = type { %"class.sc_core::sc_inout" }
%"class.sc_core::sc_inout" = type { %"class.sc_core::sc_port.13", ptr, ptr, ptr, ptr, ptr }
%"class.sc_core::sc_port.13" = type { %"class.sc_core::sc_port_b.14" }
%"class.sc_core::sc_port_b.14" = type { %"class.sc_core::sc_port_base", ptr, %"class.std::vector.15" }
%"class.std::vector.15" = type { %"struct.std::_Vector_base.16" }
%"struct.std::_Vector_base.16" = type { %"struct.std::_Vector_base<sc_core::sc_signal_inout_if<bool> *, std::allocator<sc_core::sc_signal_inout_if<bool> *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_signal_inout_if<bool> *, std::allocator<sc_core::sc_signal_inout_if<bool> *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_signal_inout_if<bool> *, std::allocator<sc_core::sc_signal_inout_if<bool> *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_signal_inout_if<bool> *, std::allocator<sc_core::sc_signal_inout_if<bool> *>>::_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: mustprogress uwtable
declare dso_local void @_ZN7sc_core8sc_inoutIbE5writeERKb(ptr noundef nonnull align 8 dereferenceable(192), ptr noundef nonnull align 1 dereferenceable(1)) #1 align 2

; 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 void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6sio_tx4markEi(ptr noundef nonnull align 8 dereferenceable(792) %0, i32 noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %14, %2
  %9 = load i32, ptr %5, align 4, !tbaa !9
  %10 = load i32, ptr %4, align 4, !tbaa !9
  %11 = icmp slt i32 %9, %10
  br i1 %11, label %12, label %17

12:                                               ; preds = %8
  %13 = getelementptr inbounds %struct.sio_tx, ptr %7, i32 0, i32 3
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #2
  store i8 1, ptr %6, align 1, !tbaa !11
  call void @_ZN7sc_core8sc_inoutIbE5writeERKb(ptr noundef nonnull align 8 dereferenceable(192) %13, ptr noundef nonnull align 1 dereferenceable(1) %6)
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #2
  call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %7)
  br label %14

14:                                               ; preds = %12
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = add nsw i32 %15, 1
  store i32 %16, ptr %5, align 4, !tbaa !9
  br label %8, !llvm.loop !13

17:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  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 = { 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 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sc_core8sc_inoutIbE5writeERKb(ptr noundef nonnull align 8 dereferenceable(192), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress 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 void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6sio_tx4markEi(ptr noundef nonnull align 8 dereferenceable(792) %0, i32 noundef %1) local_unnamed_addr #1 align 2 {
  %3 = alloca i8, align 1
  %4 = icmp sgt i32 %1, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 600
  br label %6

6:                                                ; preds = %.lr.ph, %6
  %.03 = phi i32 [ 0, %.lr.ph ], [ %7, %6 ]
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #2
  store i8 1, ptr %3, align 1, !tbaa !5
  call void @_ZN7sc_core8sc_inoutIbE5writeERKb(ptr noundef nonnull align 8 dereferenceable(192) %5, ptr noundef nonnull align 1 dereferenceable(1) %3)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #2
  call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  %7 = add nuw nsw i32 %.03, 1
  %exitcond.not = icmp eq i32 %7, %1
  br i1 %exitcond.not, label %._crit_edge, label %6, !llvm.loop !9

._crit_edge:                                      ; preds = %6, %2
  ret void
}

attributes #0 = { mustprogress 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 = { 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 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass