; LLVM IR from sbu-fsl/kernel-ml :: src/optimizers (sgd_optimizer)

; 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.sgd_optimizer = type { float, %union.val, %union.val, %union.val, ptr, ptr, ptr }
%union.val = type { double }
%struct.updates_list = type { ptr, ptr }
%struct.updates = type { ptr, ptr, ptr, ptr }

; 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: nounwind uwtable
declare dso_local void @delete_updates(ptr noundef) #1

declare void @kml_free(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @cleanup_sgd_optimizer(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.sgd_optimizer, ptr %5, i32 0, i32 5
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = getelementptr inbounds %struct.updates_list, ptr %7, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  store ptr %9, ptr %4, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %13, %1
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %13, label %19

13:                                               ; preds = %10
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %14, ptr %3, align 8, !tbaa !5
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.updates, ptr %15, i32 0, i32 2
  %17 = load ptr, ptr %16, align 8, !tbaa !14
  store ptr %17, ptr %4, align 8, !tbaa !5
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  call void @delete_updates(ptr noundef %18)
  br label %10, !llvm.loop !16

19:                                               ; preds = %10
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.sgd_optimizer, ptr %20, i32 0, i32 5
  %22 = load ptr, ptr %21, align 8, !tbaa !9
  call void @kml_free(ptr noundef %22)
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  call void @kml_free(ptr noundef %23)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 40}
!10 = !{!"sgd_optimizer", !11, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !6, i64 32, !6, i64 40, !6, i64 48}
!11 = !{!"float", !7, i64 0}
!12 = !{!13, !6, i64 0}
!13 = !{!"updates_list", !6, i64 0, !6, i64 8}
!14 = !{!15, !6, i64 16}
!15 = !{!"updates", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


; 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: nounwind uwtable
declare dso_local void @delete_updates(ptr noundef) local_unnamed_addr #0

declare void @kml_free(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @cleanup_sgd_optimizer(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 40
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8, !tbaa !11
  %.not7 = icmp eq ptr %4, null
  br i1 %.not7, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.08 = phi ptr [ %6, %.lr.ph ], [ %4, %1 ]
  %5 = getelementptr inbounds i8, ptr %.08, i64 16
  %6 = load ptr, ptr %5, align 8, !tbaa !13
  tail call void @delete_updates(ptr noundef nonnull %.08)
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !15

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %.pre = load ptr, ptr %2, align 8, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %1
  %7 = phi ptr [ %.pre, %._crit_edge.loopexit ], [ %3, %1 ]
  tail call void @kml_free(ptr noundef %7) #2
  tail call void @kml_free(ptr noundef nonnull %0) #2
  ret void
}

attributes #0 = { 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 = { "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 = { 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 40}
!6 = !{!"sgd_optimizer", !7, i64 0, !8, i64 8, !8, i64 16, !8, i64 24, !10, i64 32, !10, i64 40, !10, i64 48}
!7 = !{!"float", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"updates_list", !10, i64 0, !10, i64 8}
!13 = !{!14, !10, i64 16}
!14 = !{!"updates", !10, i64 0, !10, i64 8, !10, i64 16, !10, i64 24}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass