; LLVM IR from PaddlePaddle/Serving :: core/predictor/tools/seq_file.ll (ZN13SeqFileWriter18_write_sync_markerEv)

; 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.SeqFileWriter = type { [16 x i8], i32, ptr }

@__const._ZN13SeqFileWriter18_write_sync_markerEv.begin = 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

; 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 @_ZN13SeqFileWriter18_write_sync_markerEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca [4 x i8], align 1
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %3, ptr align 1 @__const._ZN13SeqFileWriter18_write_sync_markerEv.begin, i64 4, i1 false)
  %5 = getelementptr inbounds %class.SeqFileWriter, ptr %4, i32 0, i32 2
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  %7 = getelementptr inbounds [4 x i8], ptr %3, i64 0, i64 0
  %8 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef %7, i64 noundef 4)
  %9 = getelementptr inbounds %class.SeqFileWriter, ptr %4, i32 0, i32 2
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = getelementptr inbounds %class.SeqFileWriter, ptr %4, i32 0, i32 0
  %12 = getelementptr inbounds [16 x i8], ptr %11, i64 0, i64 0
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef %12, i64 noundef 16)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  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) #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i64 noundef) #3

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 = { 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 24}
!10 = !{!"_ZTS13SeqFileWriter", !7, i64 0, !11, i64 16, !6, i64 24}
!11 = !{!"int", !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"

@__const._ZN13SeqFileWriter18_write_sync_markerEv.begin = 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

; 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 @_ZN13SeqFileWriter18_write_sync_markerEv(ptr noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca [4 x i8], align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  %3 = load i32, ptr @__const._ZN13SeqFileWriter18_write_sync_markerEv.begin, align 1
  store i32 %3, ptr %2, align 4
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull %2, i64 noundef 4)
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull %0, i64 noundef 16)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  ret void
}

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i64 noundef) local_unnamed_addr #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 = { "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 = { 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 24}
!6 = !{!"_ZTS13SeqFileWriter", !7, i64 0, !9, i64 16, !10, i64 24}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{!"any pointer", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass