; LLVM IR from gem5/gem5 :: ext/systemc/src/sysc/tracing (sc_vcd_trace)

; 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.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::vcd_trace_file" = type { %"class.sc_core::sc_trace_file_base.base", i32, i32, i32, %"class.std::vector" }
%"class.sc_core::sc_trace_file_base.base" = type <{ %"class.sc_core::sc_trace_file", ptr, double, i8, [7 x i8], %"class.std::__cxx11::basic_string", i8, i8 }>
%"class.sc_core::sc_trace_file" = type { ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<sc_core::vcd_trace *, std::allocator<sc_core::vcd_trace *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::vcd_trace *, std::allocator<sc_core::vcd_trace *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::vcd_trace *, std::allocator<sc_core::vcd_trace *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::vcd_trace *, std::allocator<sc_core::vcd_trace *>>::_Vector_impl_data" = type { ptr, ptr, ptr }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare noundef zeroext i1 @_ZNK7sc_core18sc_trace_file_base15add_trace_checkERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(66), ptr noundef nonnull align 8 dereferenceable(32)) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPN7sc_core9vcd_traceESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sc_core14vcd_trace_file11obtain_nameB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(104)) #3 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #5

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7sc_core14vcd_trace_file5traceERKN5sc_dt12sc_uint_baseERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(32) %2) unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i1, align 1
  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
  %12 = load ptr, ptr %4, align 8
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = call noundef zeroext i1 @_ZNK7sc_core18sc_trace_file_base15add_trace_checkERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(66) %12, ptr noundef nonnull align 8 dereferenceable(32) %13)
  br i1 %14, label %15, label %35

15:                                               ; preds = %3
  %16 = getelementptr inbounds %"class.sc_core::vcd_trace_file", ptr %12, i32 0, i32 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  %17 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 120) #7
  store i1 true, ptr %11, align 1
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #6
  invoke void @_ZN7sc_core14vcd_trace_file11obtain_nameB5cxx11Ev(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull align 8 dereferenceable(104) %12)
          to label %20 unwind label %23

20:                                               ; preds = %15
  invoke void @_ZN7sc_core22vcd_sc_uint_base_traceC1ERKN5sc_dt12sc_uint_baseERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESC_(ptr noundef nonnull align 8 dereferenceable(120) %17, ptr noundef nonnull align 8 dereferenceable(24) %18, ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) %8)
          to label %21 unwind label %27

21:                                               ; preds = %20
  store i1 false, ptr %11, align 1
  store ptr %17, ptr %7, align 8, !tbaa !5
  invoke void @_ZNSt6vectorIPN7sc_core9vcd_traceESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24) %16, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %22 unwind label %27

22:                                               ; preds = %21
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %35

23:                                               ; preds = %15
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %9, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %10, align 4
  br label %31

27:                                               ; preds = %21, %20
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %9, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %10, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #6
  br label %31

31:                                               ; preds = %27, %23
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #6
  %32 = load i1, ptr %11, align 1
  br i1 %32, label %33, label %34

33:                                               ; preds = %31
  call void @_ZdlPvm(ptr noundef %17, i64 noundef 120) #8
  br label %34

34:                                               ; preds = %33, %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %36

35:                                               ; preds = %22, %3
  ret void

36:                                               ; preds = %34
  %37 = load ptr, ptr %9, align 8
  %38 = load i32, ptr %10, align 4
  %39 = insertvalue { ptr, i32 } poison, ptr %37, 0
  %40 = insertvalue { ptr, i32 } %39, i32 %38, 1
  resume { ptr, i32 } %40
}

declare void @_ZN7sc_core22vcd_sc_uint_base_traceC1ERKN5sc_dt12sc_uint_baseERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESC_(ptr, ptr, ptr, ptr)

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #4 = { nobuiltin allocsize(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 #5 = { nobuiltin nounwind "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 #6 = { nounwind }
attributes #7 = { builtin allocsize(0) }
attributes #8 = { builtin 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"}


; 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"

%"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] }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare noundef zeroext i1 @_ZNK7sc_core18sc_trace_file_base15add_trace_checkERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(66), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPN7sc_core9vcd_traceESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sc_core14vcd_trace_file11obtain_nameB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(104)) local_unnamed_addr #3 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7sc_core14vcd_trace_file5traceERKN5sc_dt12sc_uint_baseERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(32) %2) unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = tail call noundef zeroext i1 @_ZNK7sc_core18sc_trace_file_base15add_trace_checkERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(66) %0, ptr noundef nonnull align 8 dereferenceable(32) %2)
  br i1 %6, label %7, label %19

7:                                                ; preds = %3
  %8 = getelementptr inbounds i8, ptr %0, i64 80
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %9 = tail call noalias noundef nonnull dereferenceable(120) ptr @_Znwm(i64 noundef 120) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #6
  invoke void @_ZN7sc_core14vcd_trace_file11obtain_nameB5cxx11Ev(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %5, ptr noundef nonnull align 8 dereferenceable(104) %0)
          to label %10 unwind label %.thread

10:                                               ; preds = %7
  invoke void @_ZN7sc_core22vcd_sc_uint_base_traceC1ERKN5sc_dt12sc_uint_baseERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESC_(ptr noundef nonnull align 8 dereferenceable(120) %9, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %12 unwind label %.thread13

.thread13:                                        ; preds = %10
  %11 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  br label %17

12:                                               ; preds = %10
  store ptr %9, ptr %4, align 8, !tbaa !5
  invoke void @_ZNSt6vectorIPN7sc_core9vcd_traceESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24) %8, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %13 unwind label %15

13:                                               ; preds = %12
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br label %19

.thread:                                          ; preds = %7
  %14 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  br label %17

15:                                               ; preds = %12
  %16 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  br label %18

17:                                               ; preds = %.thread13, %.thread
  %.pn12 = phi { ptr, i32 } [ %14, %.thread ], [ %11, %.thread13 ]
  call void @_ZdlPvm(ptr noundef nonnull %9, i64 noundef 120) #8
  br label %18

18:                                               ; preds = %15, %17
  %.pn11 = phi { ptr, i32 } [ %.pn12, %17 ], [ %16, %15 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  resume { ptr, i32 } %.pn11

19:                                               ; preds = %13, %3
  ret void
}

declare void @_ZN7sc_core22vcd_sc_uint_base_traceC1ERKN5sc_dt12sc_uint_baseERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESC_(ptr, ptr, ptr, ptr) local_unnamed_addr

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" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #4 = { nobuiltin allocsize(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 #5 = { nobuiltin nounwind "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 #6 = { nounwind }
attributes #7 = { builtin allocsize(0) }
attributes #8 = { builtin 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"}


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