; LLVM IR from oservo/aiFi :: mlp (mlpSetTarget)

; 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.mlp = type { i32, i32, i32, i32, i32, double, double, ptr, i32, i32, i32, i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%struct.mlpLayer = type { i32, i32, i32, i32, double, double, i32, i32, i32, double, double, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @mlpSetTarget(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.mlp, ptr %7, i32 0, i32 7
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.mlp, ptr %10, i32 0, i32 1
  %12 = load i32, ptr %11, align 4, !tbaa !13
  %13 = sub nsw i32 %12, 1
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds ptr, ptr %9, i64 %14
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  store ptr %16, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !14
  br label %17

17:                                               ; preds = %36, %2
  %18 = load i32, ptr %6, align 4, !tbaa !14
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.mlpLayer, ptr %19, i32 0, i32 1
  %21 = load i32, ptr %20, align 4, !tbaa !15
  %22 = icmp slt i32 %18, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %39

24:                                               ; preds = %17
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !14
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds double, ptr %25, i64 %27
  %29 = load double, ptr %28, align 8, !tbaa !17
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.mlpLayer, ptr %30, i32 0, i32 15
  %32 = load ptr, ptr %31, align 8, !tbaa !18
  %33 = load i32, ptr %6, align 4, !tbaa !14
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds double, ptr %32, i64 %34
  store double %29, ptr %35, align 8, !tbaa !17
  br label %36

36:                                               ; preds = %24
  %37 = load i32, ptr %6, align 4, !tbaa !14
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %6, align 4, !tbaa !14
  br label %17, !llvm.loop !19

39:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !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 = !{!"mlp", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !12, i64 24, !12, i64 32, !6, i64 40, !11, i64 48, !11, i64 52, !11, i64 56, !11, i64 60, !11, i64 64, !11, i64 68, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120}
!11 = !{!"int", !7, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!10, !11, i64 4}
!14 = !{!11, !11, i64 0}
!15 = !{!16, !11, i64 4}
!16 = !{!"mlpLayer", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !12, i64 16, !12, i64 24, !11, i64 32, !11, i64 36, !11, i64 40, !12, i64 48, !12, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !6, i64 168}
!17 = !{!12, !12, i64 0}
!18 = !{!16, !6, i64 96}
!19 = distinct !{!19, !20}
!20 = !{!"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: nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @mlpSetTarget(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 40
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 4
  %6 = load i32, ptr %5, align 4, !tbaa !12
  %7 = sext i32 %6 to i64
  %8 = getelementptr ptr, ptr %4, i64 %7
  %9 = getelementptr i8, ptr %8, i64 -8
  %10 = load ptr, ptr %9, align 8, !tbaa !13
  %11 = getelementptr inbounds i8, ptr %10, i64 4
  %12 = load i32, ptr %11, align 4, !tbaa !14
  %13 = icmp sgt i32 %12, 0
  br i1 %13, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %14 = ptrtoint ptr %1 to i64
  %15 = getelementptr inbounds i8, ptr %10, i64 96
  %16 = load ptr, ptr %15, align 8, !tbaa !16
  %wide.trip.count = zext nneg i32 %12 to i64
  %min.iters.check = icmp ult i32 %12, 6
  %17 = ptrtoint ptr %16 to i64
  %18 = sub i64 %17, %14
  %diff.check = icmp ult i64 %18, 32
  %or.cond = select i1 %min.iters.check, i1 true, i1 %diff.check
  br i1 %or.cond, label %scalar.ph.preheader, label %vector.ph

scalar.ph.preheader:                              ; preds = %middle.block, %.lr.ph
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %wide.trip.count, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %scalar.ph.prol.loopexit, label %scalar.ph.prol

scalar.ph.prol:                                   ; preds = %scalar.ph.preheader, %scalar.ph.prol
  %indvars.iv.prol = phi i64 [ %indvars.iv.next.prol, %scalar.ph.prol ], [ %indvars.iv.ph, %scalar.ph.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %scalar.ph.prol ], [ 0, %scalar.ph.preheader ]
  %19 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.prol
  %20 = load double, ptr %19, align 8, !tbaa !17
  %21 = getelementptr inbounds double, ptr %16, i64 %indvars.iv.prol
  store double %20, ptr %21, align 8, !tbaa !17
  %indvars.iv.next.prol = add nuw nsw i64 %indvars.iv.prol, 1
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %scalar.ph.prol.loopexit, label %scalar.ph.prol, !llvm.loop !18

scalar.ph.prol.loopexit:                          ; preds = %scalar.ph.prol, %scalar.ph.preheader
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %scalar.ph.preheader ], [ %indvars.iv.next.prol, %scalar.ph.prol ]
  %22 = sub nsw i64 %indvars.iv.ph, %wide.trip.count
  %23 = icmp ugt i64 %22, -4
  br i1 %23, label %._crit_edge, label %scalar.ph

vector.ph:                                        ; preds = %.lr.ph
  %n.vec = and i64 %wide.trip.count, 2147483644
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %24 = getelementptr inbounds double, ptr %1, i64 %index
  %25 = getelementptr inbounds i8, ptr %24, i64 16
  %wide.load = load <2 x double>, ptr %24, align 8, !tbaa !17
  %wide.load10 = load <2 x double>, ptr %25, align 8, !tbaa !17
  %26 = getelementptr inbounds double, ptr %16, i64 %index
  %27 = getelementptr inbounds i8, ptr %26, i64 16
  store <2 x double> %wide.load, ptr %26, align 8, !tbaa !17
  store <2 x double> %wide.load10, ptr %27, align 8, !tbaa !17
  %index.next = add nuw i64 %index, 4
  %28 = icmp eq i64 %index.next, %n.vec
  br i1 %28, label %middle.block, label %vector.body, !llvm.loop !20

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge, label %scalar.ph.preheader

._crit_edge:                                      ; preds = %scalar.ph.prol.loopexit, %scalar.ph, %middle.block, %2
  ret void

scalar.ph:                                        ; preds = %scalar.ph.prol.loopexit, %scalar.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %scalar.ph ], [ %indvars.iv.unr, %scalar.ph.prol.loopexit ]
  %29 = getelementptr inbounds double, ptr %1, i64 %indvars.iv
  %30 = load double, ptr %29, align 8, !tbaa !17
  %31 = getelementptr inbounds double, ptr %16, i64 %indvars.iv
  store double %30, ptr %31, align 8, !tbaa !17
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %32 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next
  %33 = load double, ptr %32, align 8, !tbaa !17
  %34 = getelementptr inbounds double, ptr %16, i64 %indvars.iv.next
  store double %33, ptr %34, align 8, !tbaa !17
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %35 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next.1
  %36 = load double, ptr %35, align 8, !tbaa !17
  %37 = getelementptr inbounds double, ptr %16, i64 %indvars.iv.next.1
  store double %36, ptr %37, align 8, !tbaa !17
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %38 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next.2
  %39 = load double, ptr %38, align 8, !tbaa !17
  %40 = getelementptr inbounds double, ptr %16, i64 %indvars.iv.next.2
  store double %39, ptr %40, align 8, !tbaa !17
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, %wide.trip.count
  br i1 %exitcond.not.3, label %._crit_edge, label %scalar.ph, !llvm.loop !24
}

attributes #0 = { nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) 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" }

!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, !11, i64 40}
!6 = !{!"mlp", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !10, i64 24, !10, i64 32, !11, i64 40, !7, i64 48, !7, i64 52, !7, i64 56, !7, i64 60, !7, i64 64, !7, i64 68, !11, i64 72, !11, i64 80, !11, i64 88, !11, i64 96, !11, i64 104, !11, i64 112, !11, i64 120}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"double", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !7, i64 4}
!13 = !{!11, !11, i64 0}
!14 = !{!15, !7, i64 4}
!15 = !{!"mlpLayer", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !10, i64 16, !10, i64 24, !7, i64 32, !7, i64 36, !7, i64 40, !10, i64 48, !10, i64 56, !11, i64 64, !11, i64 72, !11, i64 80, !11, i64 88, !11, i64 96, !11, i64 104, !11, i64 112, !11, i64 120, !11, i64 128, !11, i64 136, !11, i64 144, !11, i64 152, !11, i64 160, !11, i64 168}
!16 = !{!15, !11, i64 96}
!17 = !{!10, !10, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.unroll.disable"}
!20 = distinct !{!20, !21, !22, !23}
!21 = !{!"llvm.loop.mustprogress"}
!22 = !{!"llvm.loop.isvectorized", i32 1}
!23 = !{!"llvm.loop.unroll.runtime.disable"}
!24 = distinct !{!24, !21, !22}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass