; LLVM IR from junhyeokahn/PyPnC :: external_source/yaml/src/simplekey.ll (ZN4YAML7Scanner9SimpleKeyC2ERKNS_4MarkEm)

; 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.YAML::Scanner::SimpleKey" = type { %"struct.YAML::Mark", i64, ptr, ptr, ptr }
%"struct.YAML::Mark" = type { i32, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4YAML7Scanner9SimpleKeyC2ERKNS_4MarkEm(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef nonnull align 4 dereferenceable(12) %1, i64 noundef %2) unnamed_addr #0 align 2 {
  %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 %4, align 8
  %8 = getelementptr inbounds %"struct.YAML::Scanner::SimpleKey", ptr %7, i32 0, i32 0
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %8, ptr align 4 %9, i64 12, i1 false), !tbaa.struct !11
  %10 = getelementptr inbounds %"struct.YAML::Scanner::SimpleKey", ptr %7, i32 0, i32 1
  %11 = load i64, ptr %6, align 8, !tbaa !9
  store i64 %11, ptr %10, align 8, !tbaa !14
  %12 = getelementptr inbounds %"struct.YAML::Scanner::SimpleKey", ptr %7, i32 0, i32 2
  store ptr null, ptr %12, align 8, !tbaa !17
  %13 = getelementptr inbounds %"struct.YAML::Scanner::SimpleKey", ptr %7, i32 0, i32 3
  store ptr null, ptr %13, align 8, !tbaa !18
  %14 = getelementptr inbounds %"struct.YAML::Scanner::SimpleKey", ptr %7, i32 0, i32 4
  store ptr null, ptr %14, align 8, !tbaa !19
  ret void
}

; 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) #1

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 nounwind willreturn memory(argmem: readwrite) }

!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 = !{i64 0, i64 4, !12, i64 4, i64 4, !12, i64 8, i64 4, !12}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!15, !10, i64 16}
!15 = !{!"_ZTSN4YAML7Scanner9SimpleKeyE", !16, i64 0, !10, i64 16, !6, i64 24, !6, i64 32, !6, i64 40}
!16 = !{!"_ZTSN4YAML4MarkE", !13, i64 0, !13, i64 4, !13, i64 8}
!17 = !{!15, !6, i64 24}
!18 = !{!15, !6, i64 32}
!19 = !{!15, !6, i64 40}


; 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 nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @_ZN4YAML7Scanner9SimpleKeyC2ERKNS_4MarkEm(ptr nocapture noundef nonnull writeonly align 8 dereferenceable(48) %0, ptr nocapture noundef nonnull readonly align 4 dereferenceable(12) %1, i64 noundef %2) unnamed_addr #0 align 2 {
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(12) %0, ptr noundef nonnull align 4 dereferenceable(12) %1, i64 12, i1 false), !tbaa.struct !5
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  store i64 %2, ptr %4, align 8, !tbaa !10
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %5, i8 0, i64 24, i1 false)
  ret void
}

; 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) #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 nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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 nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!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 = !{i64 0, i64 4, !6, i64 4, i64 4, !6, i64 8, i64 4, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !13, i64 16}
!11 = !{!"_ZTSN4YAML7Scanner9SimpleKeyE", !12, i64 0, !13, i64 16, !14, i64 24, !14, i64 32, !14, i64 40}
!12 = !{!"_ZTSN4YAML4MarkE", !7, i64 0, !7, i64 4, !7, i64 8}
!13 = !{!"long", !8, i64 0}
!14 = !{!"any pointer", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass