; LLVM IR from mncoppola/rpef :: utilities_src/squashfs4.2/lzma465/CPP/Common (MyVector)

; 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.CBaseRecordVector = type { ptr, i32, i32, ptr, i64 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN17CBaseRecordVector12ClearAndFreeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  call void @_ZN17CBaseRecordVector5ClearEv(ptr noundef nonnull align 8 dereferenceable(32) %3)
  %4 = getelementptr inbounds %class.CBaseRecordVector, ptr %3, i32 0, i32 3
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %1
  call void @_ZdaPv(ptr noundef %5) #2
  br label %8

8:                                                ; preds = %7, %1
  %9 = getelementptr inbounds %class.CBaseRecordVector, ptr %3, i32 0, i32 1
  store i32 0, ptr %9, align 8, !tbaa !13
  %10 = getelementptr inbounds %class.CBaseRecordVector, ptr %3, i32 0, i32 2
  store i32 0, ptr %10, align 4, !tbaa !14
  %11 = getelementptr inbounds %class.CBaseRecordVector, ptr %3, i32 0, i32 3
  store ptr null, ptr %11, align 8, !tbaa !9
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN17CBaseRecordVector5ClearEv(ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #1

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 = { 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 #2 = { 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"}
!9 = !{!10, !6, i64 16}
!10 = !{!"_ZTS17CBaseRecordVector", !11, i64 8, !11, i64 12, !6, i64 16, !12, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !11, i64 8}
!14 = !{!10, !11, i64 12}


; 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 @_ZN17CBaseRecordVector12ClearAndFreeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #0 align 2 {
  tail call void @_ZN17CBaseRecordVector5ClearEv(ptr noundef nonnull align 8 dereferenceable(32) %0)
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, null
  br i1 %4, label %6, label %5

5:                                                ; preds = %1
  tail call void @_ZdaPv(ptr noundef nonnull %3) #3
  br label %6

6:                                                ; preds = %5, %1
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %7, i8 0, i64 16, i1 false)
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN17CBaseRecordVector5ClearEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, 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 = { 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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, !10, i64 16}
!6 = !{!"_ZTS17CBaseRecordVector", !7, i64 8, !7, i64 12, !10, i64 16, !11, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"long", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass