; LLVM IR from lelegard/cryptobench :: src/sys.ll (ZN3sys4copyERSt6vectorIhSaIhEEPKvm)

; 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"

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3sys4copyERSt6vectorIhSaIhEEPKvm(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef %1, i64 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  %7 = load ptr, ptr %5, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %12, label %9

9:                                                ; preds = %3
  %10 = load i64, ptr %6, align 8, !tbaa !9
  %11 = icmp eq i64 %10, 0
  br i1 %11, label %12, label %14

12:                                               ; preds = %9, %3
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_ZNSt6vectorIhSaIhEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #3
  br label %21

14:                                               ; preds = %9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = load i64, ptr %6, align 8, !tbaa !9
  call void @_ZNSt6vectorIhSaIhEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %15, i64 noundef %16)
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %17, i64 noundef 0) #3
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i64, ptr %6, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %18, ptr align 1 %19, i64 %20, i1 false)
  br label %21

21:                                               ; preds = %14, %12
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIhSaIhEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIhSaIhEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 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) #2

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"long", !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"

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3sys4copyERSt6vectorIhSaIhEEPKvm(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq ptr %1, null
  %5 = icmp eq i64 %2, 0
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %6, label %7

6:                                                ; preds = %3
  tail call void @_ZNSt6vectorIhSaIhEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %9

7:                                                ; preds = %3
  tail call void @_ZNSt6vectorIhSaIhEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %2)
  %8 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #3
  tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %8, ptr nonnull align 1 %1, i64 %2, i1 false)
  br label %9

9:                                                ; preds = %7, %6
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIhSaIhEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIhSaIhEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 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) #2

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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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)"}


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