; LLVM IR from chronoxor/CppBenchmark :: examples/memcpy.ll/ZN12CppBenchmark15/benchmark (363RunERNS_7ContextE)

; 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.std::allocator.18" = type { i8 }
%class.MemoryCopyFixture = type { ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; 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
define dso_local void @_ZN12CppBenchmark15__benchmark__363RunERNS_7ContextE(ptr noundef nonnull align 8 dereferenceable(208) %0, ptr noundef nonnull align 8 dereferenceable(56) %1) unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca [65536 x i8], align 16
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::allocator.18", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  store i64 0, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = call noundef i32 @_ZNK12CppBenchmark7Context1xEv(ptr noundef nonnull align 8 dereferenceable(56) %13) #4
  %15 = sext i32 %14 to i64
  store i64 %15, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 65536, ptr %7) #4
  %16 = getelementptr inbounds [65536 x i8], ptr %7, i64 0, i64 0
  %17 = getelementptr inbounds i8, ptr %12, i64 200
  %18 = getelementptr inbounds %class.MemoryCopyFixture, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !11
  %20 = load i64, ptr %6, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %16, ptr align 1 %19, i64 %20, i1 false)
  %21 = getelementptr inbounds [65536 x i8], ptr %7, i64 0, i64 0
  %22 = load i8, ptr %21, align 16, !tbaa !13
  %23 = zext i8 %22 to i64
  %24 = load i64, ptr %5, align 8, !tbaa !9
  %25 = add i64 %24, %23
  store i64 %25, ptr %5, align 8, !tbaa !9
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = call noundef nonnull align 8 dereferenceable(412) ptr @_ZN12CppBenchmark7Context7metricsEv(ptr noundef nonnull align 8 dereferenceable(56) %26) #4
  %28 = load i64, ptr %6, align 8, !tbaa !9
  call void @_ZN12CppBenchmark12PhaseMetrics8AddBytesEl(ptr noundef nonnull align 8 dereferenceable(412) %27, i64 noundef %28) #4
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = call noundef nonnull align 8 dereferenceable(412) ptr @_ZN12CppBenchmark7Context7metricsEv(ptr noundef nonnull align 8 dereferenceable(56) %29) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %31 unwind label %34

31:                                               ; preds = %2
  %32 = load i64, ptr %5, align 8, !tbaa !9
  invoke void @_ZN12CppBenchmark12PhaseMetrics9SetCustomERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(412) %30, ptr noundef nonnull align 8 dereferenceable(32) %8, i64 noundef %32)
          to label %33 unwind label %38

33:                                               ; preds = %31
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 65536, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret void

34:                                               ; preds = %2
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %10, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %11, align 4
  br label %42

38:                                               ; preds = %31
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %10, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %11, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  br label %42

42:                                               ; preds = %38, %34
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 65536, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br label %43

43:                                               ; preds = %42
  %44 = load ptr, ptr %10, align 8
  %45 = load i32, ptr %11, align 4
  %46 = insertvalue { ptr, i32 } poison, ptr %44, 0
  %47 = insertvalue { ptr, i32 } %46, i32 %45, 1
  resume { ptr, i32 } %47
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK12CppBenchmark7Context1xEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(412) ptr @_ZN12CppBenchmark7Context7metricsEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN12CppBenchmark12PhaseMetrics8AddBytesEl(ptr noundef nonnull align 8 dereferenceable(412), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12CppBenchmark12PhaseMetrics9SetCustomERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(412), ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS17MemoryCopyFixture", !6, i64 0}
!13 = !{!7, !7, 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"

%"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.std::allocator.18" = type { i8 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; 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
define dso_local void @_ZN12CppBenchmark15__benchmark__363RunERNS_7ContextE(ptr nocapture noundef nonnull readonly align 8 dereferenceable(208) %0, ptr noundef nonnull align 8 dereferenceable(56) %1) unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca [65536 x i8], align 16
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::allocator.18", align 1
  %6 = tail call noundef i32 @_ZNK12CppBenchmark7Context1xEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #4
  %7 = sext i32 %6 to i64
  call void @llvm.lifetime.start.p0(i64 65536, ptr nonnull %3)
  %8 = getelementptr inbounds i8, ptr %0, i64 200
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 16 %3, ptr align 1 %9, i64 %7, i1 false)
  %.0..0..0..0.1 = load i8, ptr %3, align 16, !tbaa !10
  %10 = tail call noundef nonnull align 8 dereferenceable(412) ptr @_ZN12CppBenchmark7Context7metricsEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #4
  tail call void @_ZN12CppBenchmark12PhaseMetrics8AddBytesEl(ptr noundef nonnull align 8 dereferenceable(412) %10, i64 noundef %7) #4
  %11 = tail call noundef nonnull align 8 dereferenceable(412) ptr @_ZN12CppBenchmark7Context7metricsEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #4
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %12 unwind label %15

12:                                               ; preds = %2
  %13 = zext i8 %.0..0..0..0.1 to i64
  invoke void @_ZN12CppBenchmark12PhaseMetrics9SetCustomERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(412) %11, ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %13)
          to label %14 unwind label %17

14:                                               ; preds = %12
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 65536, ptr nonnull %3)
  ret void

15:                                               ; preds = %2
  %16 = landingpad { ptr, i32 }
          cleanup
  br label %19

17:                                               ; preds = %12
  %18 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  br label %19

19:                                               ; preds = %17, %15
  %.pn = phi { ptr, i32 } [ %18, %17 ], [ %16, %15 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 65536, ptr nonnull %3)
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK12CppBenchmark7Context1xEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(412) ptr @_ZN12CppBenchmark7Context7metricsEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN12CppBenchmark12PhaseMetrics8AddBytesEl(ptr noundef nonnull align 8 dereferenceable(412), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12CppBenchmark12PhaseMetrics9SetCustomERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(412), ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

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 = { 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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, !7, i64 0}
!6 = !{!"_ZTS17MemoryCopyFixture", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!8, !8, i64 0}


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