; LLVM IR from erwincoumans/tiny-differentiable-simulator :: third_party/zeromq/src/tcp_address.ll (ZN3zmq13tcp_address_tC2Ev)

; 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.zmq::tcp_address_t" = type <{ %"union.zmq::ip_addr_t", %"union.zmq::ip_addr_t", i8, [3 x i8] }>
%"union.zmq::ip_addr_t" = type { %struct.sockaddr_in6 }
%struct.sockaddr_in6 = type { i16, i16, i32, %struct.in6_addr, i32 }
%struct.in6_addr = type { %union.anon }
%union.anon = type { [4 x i32] }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3zmq13tcp_address_tC2Ev(ptr noundef nonnull align 4 dereferenceable(57) %0) unnamed_addr #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 %"class.zmq::tcp_address_t", ptr %3, i32 0, i32 0
  %5 = getelementptr inbounds %"class.zmq::tcp_address_t", ptr %3, i32 0, i32 1
  %6 = getelementptr inbounds %"class.zmq::tcp_address_t", ptr %3, i32 0, i32 2
  store i8 0, ptr %6, align 4, !tbaa !9
  %7 = getelementptr inbounds %"class.zmq::tcp_address_t", ptr %3, i32 0, i32 0
  call void @llvm.memset.p0.i64(ptr align 4 %7, i8 0, i64 28, i1 false)
  %8 = getelementptr inbounds %"class.zmq::tcp_address_t", ptr %3, i32 0, i32 1
  call void @llvm.memset.p0.i64(ptr align 4 %8, i8 0, i64 28, 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) }

!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 56}
!10 = !{!"_ZTSN3zmq13tcp_address_tE", !7, i64 0, !7, i64 28, !11, i64 56}
!11 = !{!"bool", !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 nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @_ZN3zmq13tcp_address_tC2Ev(ptr nocapture noundef nonnull writeonly align 4 dereferenceable(57) %0) unnamed_addr #0 align 2 {
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(57) %0, i8 0, i64 57, i1 false)
  ret void
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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: 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)"}


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