; LLVM IR from NVIDIA/TensorRT :: plugin/scatterPlugin (scatterPlugin)

; 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.nvinfer1::Dims64" = type { i32, [8 x i64] }

; 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: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZNK8nvinfer16plugin9ScatterND17calculateCopySizeERKNS_6Dims64E(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(72) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %26, %2
  %9 = load i32, ptr %6, align 4, !tbaa !9
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %"class.nvinfer1::Dims64", ptr %10, i32 0, i32 0
  %12 = load i32, ptr %11, align 8, !tbaa !11
  %13 = icmp slt i32 %9, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %29

15:                                               ; preds = %8
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %"class.nvinfer1::Dims64", ptr %16, i32 0, i32 1
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [8 x i64], ptr %17, i64 0, i64 %19
  %21 = load i64, ptr %20, align 8, !tbaa !13
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = mul nsw i64 %23, %21
  %25 = trunc i64 %24 to i32
  store i32 %25, ptr %5, align 4, !tbaa !9
  br label %26

26:                                               ; preds = %15
  %27 = load i32, ptr %6, align 4, !tbaa !9
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %6, align 4, !tbaa !9
  br label %8, !llvm.loop !15

29:                                               ; preds = %14
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = sext i32 %30 to i64
  %32 = mul i64 %31, 4
  %33 = trunc i64 %32 to i32
  store i32 %33, ptr %5, align 4, !tbaa !9
  %34 = load i32, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %34
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTSN8nvinfer16Dims64E", !10, i64 0, !7, i64 8}
!13 = !{!14, !14, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef i32 @_ZNK8nvinfer16plugin9ScatterND17calculateCopySizeERKNS_6Dims64E(ptr nocapture noundef nonnull readnone align 8 dereferenceable(40) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(72) %1) local_unnamed_addr #0 align 2 {
  %3 = load i32, ptr %1, align 8, !tbaa !5
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %wide.trip.count = zext nneg i32 %3 to i64
  %xtraiter = and i64 %wide.trip.count, 7
  %6 = icmp ult i32 %3, 8
  br i1 %6, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.new

.lr.ph.new:                                       ; preds = %.lr.ph
  %unroll_iter = and i64 %wide.trip.count, 2147483640
  br label %12

._crit_edge.loopexit.unr-lcssa:                   ; preds = %12, %.lr.ph
  %.lcssa.ph = phi i32 [ poison, %.lr.ph ], [ %44, %12 ]
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next.7, %12 ]
  %.089.unr = phi i32 [ 1, %.lr.ph ], [ %44, %12 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge.loopexit, label %.epil.preheader

.epil.preheader:                                  ; preds = %._crit_edge.loopexit.unr-lcssa, %.epil.preheader
  %indvars.iv.epil = phi i64 [ %indvars.iv.next.epil, %.epil.preheader ], [ %indvars.iv.unr, %._crit_edge.loopexit.unr-lcssa ]
  %.089.epil = phi i32 [ %10, %.epil.preheader ], [ %.089.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.epil.preheader ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %7 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.epil
  %8 = load i64, ptr %7, align 8, !tbaa !10
  %9 = trunc i64 %8 to i32
  %10 = mul i32 %.089.epil, %9
  %indvars.iv.next.epil = add nuw nsw i64 %indvars.iv.epil, 1
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge.loopexit, label %.epil.preheader, !llvm.loop !12

._crit_edge.loopexit:                             ; preds = %.epil.preheader, %._crit_edge.loopexit.unr-lcssa
  %.lcssa = phi i32 [ %.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %10, %.epil.preheader ]
  %11 = shl i32 %.lcssa, 2
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %2
  %.08.lcssa = phi i32 [ 4, %2 ], [ %11, %._crit_edge.loopexit ]
  ret i32 %.08.lcssa

12:                                               ; preds = %12, %.lr.ph.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.new ], [ %indvars.iv.next.7, %12 ]
  %.089 = phi i32 [ 1, %.lr.ph.new ], [ %44, %12 ]
  %niter = phi i64 [ 0, %.lr.ph.new ], [ %niter.next.7, %12 ]
  %13 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv
  %14 = load i64, ptr %13, align 8, !tbaa !10
  %15 = trunc i64 %14 to i32
  %16 = mul i32 %.089, %15
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %17 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.next
  %18 = load i64, ptr %17, align 8, !tbaa !10
  %19 = trunc i64 %18 to i32
  %20 = mul i32 %16, %19
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 2
  %21 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.next.1
  %22 = load i64, ptr %21, align 8, !tbaa !10
  %23 = trunc i64 %22 to i32
  %24 = mul i32 %20, %23
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 3
  %25 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.next.2
  %26 = load i64, ptr %25, align 8, !tbaa !10
  %27 = trunc i64 %26 to i32
  %28 = mul i32 %24, %27
  %indvars.iv.next.3 = or disjoint i64 %indvars.iv, 4
  %29 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.next.3
  %30 = load i64, ptr %29, align 8, !tbaa !10
  %31 = trunc i64 %30 to i32
  %32 = mul i32 %28, %31
  %indvars.iv.next.4 = or disjoint i64 %indvars.iv, 5
  %33 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.next.4
  %34 = load i64, ptr %33, align 8, !tbaa !10
  %35 = trunc i64 %34 to i32
  %36 = mul i32 %32, %35
  %indvars.iv.next.5 = or disjoint i64 %indvars.iv, 6
  %37 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.next.5
  %38 = load i64, ptr %37, align 8, !tbaa !10
  %39 = trunc i64 %38 to i32
  %40 = mul i32 %36, %39
  %indvars.iv.next.6 = or disjoint i64 %indvars.iv, 7
  %41 = getelementptr inbounds [8 x i64], ptr %5, i64 0, i64 %indvars.iv.next.6
  %42 = load i64, ptr %41, align 8, !tbaa !10
  %43 = trunc i64 %42 to i32
  %44 = mul i32 %40, %43
  %indvars.iv.next.7 = add nuw nsw i64 %indvars.iv, 8
  %niter.next.7 = add i64 %niter, 8
  %niter.ncmp.7 = icmp eq i64 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7, label %._crit_edge.loopexit.unr-lcssa, label %12, !llvm.loop !14
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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, !7, i64 0}
!6 = !{!"_ZTSN8nvinfer16Dims64E", !7, i64 0, !8, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !11, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.unroll.disable"}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass