; LLVM IR from ERGO-Code/HiGHS :: src/lp_data/HighsInterface.ll (ZN20HighsLinearObjective5clearEv)

; 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.HighsLinearObjective = type <{ double, double, %"class.std::vector", double, double, i32, [4 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN20HighsLinearObjective5clearEv(ptr noundef nonnull align 8 dereferenceable(60) %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
  %4 = getelementptr inbounds %struct.HighsLinearObjective, ptr %3, i32 0, i32 0
  store double 0.000000e+00, ptr %4, align 8, !tbaa !9
  %5 = getelementptr inbounds %struct.HighsLinearObjective, ptr %3, i32 0, i32 1
  store double 0.000000e+00, ptr %5, align 8, !tbaa !17
  %6 = getelementptr inbounds %struct.HighsLinearObjective, ptr %3, i32 0, i32 2
  call void @_ZNSt6vectorIdSaIdEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #1
  %7 = getelementptr inbounds %struct.HighsLinearObjective, ptr %3, i32 0, i32 3
  store double 0.000000e+00, ptr %7, align 8, !tbaa !18
  %8 = getelementptr inbounds %struct.HighsLinearObjective, ptr %3, i32 0, i32 4
  store double 0.000000e+00, ptr %8, align 8, !tbaa !19
  %9 = getelementptr inbounds %struct.HighsLinearObjective, ptr %3, i32 0, i32 5
  store i32 0, ptr %9, align 8, !tbaa !20
  ret void
}

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 = { 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, !11, i64 0}
!10 = !{!"_ZTS20HighsLinearObjective", !11, i64 0, !11, i64 8, !12, i64 16, !11, i64 40, !11, i64 48, !16, i64 56}
!11 = !{!"double", !7, i64 0}
!12 = !{!"_ZTSSt6vectorIdSaIdEE", !13, i64 0}
!13 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!16 = !{!"int", !7, i64 0}
!17 = !{!10, !11, i64 8}
!18 = !{!10, !11, i64 40}
!19 = !{!10, !11, i64 48}
!20 = !{!10, !16, i64 56}


; 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN20HighsLinearObjective5clearEv(ptr noundef nonnull align 8 dereferenceable(60) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %0, i8 0, i64 16, i1 false)
  tail call void @_ZNSt6vectorIdSaIdEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #2
  %3 = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(20) %3, i8 0, i64 20, i1 false)
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, 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: write) }
attributes #2 = { 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: EarlyCSEPass,GlobalOptPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass