; LLVM IR from certik/mlc :: mlc_clib (kernels)

; 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"

; 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
define dso_local void @relu_32K_f16(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca half, align 2
  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 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %31, %2
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = icmp slt i32 %8, 32768
  br i1 %9, label %11, label %10

10:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  br label %34

11:                                               ; preds = %7
  call void @llvm.lifetime.start.p0(i64 2, ptr %6) #2
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds half, ptr %12, i64 %14
  %16 = load half, ptr %15, align 2, !tbaa !11
  store half %16, ptr %6, align 2, !tbaa !11
  %17 = load half, ptr %6, align 2, !tbaa !11
  %18 = fcmp ogt half %17, 0xH0000
  br i1 %18, label %19, label %25

19:                                               ; preds = %11
  %20 = load half, ptr %6, align 2, !tbaa !11
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds half, ptr %21, i64 %23
  store half %20, ptr %24, align 2, !tbaa !11
  br label %30

25:                                               ; preds = %11
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds half, ptr %26, i64 %28
  store half 0xH0000, ptr %29, align 2, !tbaa !11
  br label %30

30:                                               ; preds = %25, %19
  call void @llvm.lifetime.end.p0(i64 2, ptr %6) #2
  br label %31

31:                                               ; preds = %30
  %32 = load i32, ptr %5, align 4, !tbaa !9
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %5, align 4, !tbaa !9
  br label %7, !llvm.loop !13

34:                                               ; preds = %10
  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 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"_Float16", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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(argmem: readwrite) uwtable
define dso_local void @relu_32K_f16(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
vector.memcheck:
  %2 = ptrtoint ptr %1 to i64
  %3 = ptrtoint ptr %0 to i64
  %4 = sub i64 %2, %3
  %diff.check = icmp ult i64 %4, 16
  br i1 %diff.check, label %scalar.ph, label %vector.body

vector.body:                                      ; preds = %vector.memcheck, %vector.body
  %index = phi i64 [ %index.next.3, %vector.body ], [ 0, %vector.memcheck ]
  %5 = getelementptr inbounds half, ptr %0, i64 %index
  %wide.load = load <8 x half>, ptr %5, align 2, !tbaa !5
  %6 = fcmp ogt <8 x half> %wide.load, zeroinitializer
  %7 = select <8 x i1> %6, <8 x half> %wide.load, <8 x half> zeroinitializer
  %8 = getelementptr inbounds half, ptr %1, i64 %index
  store <8 x half> %7, ptr %8, align 2
  %index.next = or disjoint i64 %index, 8
  %9 = getelementptr inbounds half, ptr %0, i64 %index.next
  %wide.load.1 = load <8 x half>, ptr %9, align 2, !tbaa !5
  %10 = fcmp ogt <8 x half> %wide.load.1, zeroinitializer
  %11 = select <8 x i1> %10, <8 x half> %wide.load.1, <8 x half> zeroinitializer
  %12 = getelementptr inbounds half, ptr %1, i64 %index.next
  store <8 x half> %11, ptr %12, align 2
  %index.next.1 = or disjoint i64 %index, 16
  %13 = getelementptr inbounds half, ptr %0, i64 %index.next.1
  %wide.load.2 = load <8 x half>, ptr %13, align 2, !tbaa !5
  %14 = fcmp ogt <8 x half> %wide.load.2, zeroinitializer
  %15 = select <8 x i1> %14, <8 x half> %wide.load.2, <8 x half> zeroinitializer
  %16 = getelementptr inbounds half, ptr %1, i64 %index.next.1
  store <8 x half> %15, ptr %16, align 2
  %index.next.2 = or disjoint i64 %index, 24
  %17 = getelementptr inbounds half, ptr %0, i64 %index.next.2
  %wide.load.3 = load <8 x half>, ptr %17, align 2, !tbaa !5
  %18 = fcmp ogt <8 x half> %wide.load.3, zeroinitializer
  %19 = select <8 x i1> %18, <8 x half> %wide.load.3, <8 x half> zeroinitializer
  %20 = getelementptr inbounds half, ptr %1, i64 %index.next.2
  store <8 x half> %19, ptr %20, align 2
  %index.next.3 = add nuw nsw i64 %index, 32
  %21 = icmp eq i64 %index.next.3, 32768
  br i1 %21, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body, %scalar.ph
  ret void

scalar.ph:                                        ; preds = %vector.memcheck, %scalar.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %scalar.ph ], [ 0, %vector.memcheck ]
  %22 = getelementptr inbounds half, ptr %0, i64 %indvars.iv
  %23 = load half, ptr %22, align 2, !tbaa !5
  %24 = fcmp ogt half %23, 0xH0000
  %.sink = select i1 %24, half %23, half 0xH0000
  %25 = getelementptr inbounds half, ptr %1, i64 %indvars.iv
  store half %.sink, ptr %25, align 2
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %26 = getelementptr inbounds half, ptr %0, i64 %indvars.iv.next
  %27 = load half, ptr %26, align 2, !tbaa !5
  %28 = fcmp ogt half %27, 0xH0000
  %.sink.1 = select i1 %28, half %27, half 0xH0000
  %29 = getelementptr inbounds half, ptr %1, i64 %indvars.iv.next
  store half %.sink.1, ptr %29, align 2
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 2
  %30 = getelementptr inbounds half, ptr %0, i64 %indvars.iv.next.1
  %31 = load half, ptr %30, align 2, !tbaa !5
  %32 = fcmp ogt half %31, 0xH0000
  %.sink.2 = select i1 %32, half %31, half 0xH0000
  %33 = getelementptr inbounds half, ptr %1, i64 %indvars.iv.next.1
  store half %.sink.2, ptr %33, align 2
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 3
  %34 = getelementptr inbounds half, ptr %0, i64 %indvars.iv.next.2
  %35 = load half, ptr %34, align 2, !tbaa !5
  %36 = fcmp ogt half %35, 0xH0000
  %.sink.3 = select i1 %36, half %35, half 0xH0000
  %37 = getelementptr inbounds half, ptr %1, i64 %indvars.iv.next.2
  store half %.sink.3, ptr %37, align 2
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, 32768
  br i1 %exitcond.not.3, label %middle.block, label %scalar.ph, !llvm.loop !13
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: readwrite) 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, !6, i64 0}
!6 = !{!"_Float16", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}
!13 = distinct !{!13, !10, !11}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopLoadEliminationPass,LoopRotatePass,LoopUnrollPass,LoopVectorizePass,MergedLoadStoreMotionPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass