; 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 @_ZNK8nvinfer16plugin9ScatterND18calculateNumSlicesENS_6Dims64E(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef byval(%"class.nvinfer1::Dims64") align 8 %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  store i32 1, ptr %4, align 4, !tbaa !9
  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 = %24, %2
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = getelementptr inbounds %"class.nvinfer1::Dims64", ptr %1, i32 0, i32 0
  %10 = load i32, ptr %9, align 8, !tbaa !11
  %11 = sub nsw i32 %10, 1
  %12 = icmp slt i32 %8, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  br label %27

14:                                               ; preds = %7
  %15 = getelementptr inbounds %"class.nvinfer1::Dims64", ptr %1, i32 0, i32 1
  %16 = load i32, ptr %5, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [8 x i64], ptr %15, i64 0, i64 %17
  %19 = load i64, ptr %18, align 8, !tbaa !13
  %20 = load i32, ptr %4, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = mul nsw i64 %21, %19
  %23 = trunc i64 %22 to i32
  store i32 %23, ptr %4, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %14
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %5, align 4, !tbaa !9
  br label %7, !llvm.loop !15

27:                                               ; preds = %13
  %28 = load i32, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  ret i32 %28
}

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"

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

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef i32 @_ZNK8nvinfer16plugin9ScatterND18calculateNumSlicesENS_6Dims64E(ptr nocapture noundef nonnull readnone align 8 dereferenceable(40) %0, ptr nocapture noundef readonly byval(%"class.nvinfer1::Dims64") align 8 %1) local_unnamed_addr #0 align 2 {
  %3 = load i32, ptr %1, align 8, !tbaa !5
  %4 = icmp sgt i32 %3, 1
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %5 = add nsw i32 %3, -1
  %6 = getelementptr inbounds i8, ptr %1, i64 8
  %wide.trip.count = zext nneg i32 %5 to i64
  %7 = add nsw i64 %wide.trip.count, -1
  %xtraiter = and i64 %wide.trip.count, 7
  %8 = icmp ult i64 %7, 7
  br i1 %8, 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 %13

._crit_edge.loopexit.unr-lcssa:                   ; preds = %13, %.lr.ph
  %.lcssa.ph = phi i32 [ poison, %.lr.ph ], [ %45, %13 ]
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next.7, %13 ]
  %.056.unr = phi i32 [ 1, %.lr.ph ], [ %45, %13 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, 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 ]
  %.056.epil = phi i32 [ %12, %.epil.preheader ], [ %.056.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.epil.preheader ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %9 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.epil
  %10 = load i64, ptr %9, align 8, !tbaa !10
  %11 = trunc i64 %10 to i32
  %12 = mul i32 %.056.epil, %11
  %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, label %.epil.preheader, !llvm.loop !12

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.epil.preheader, %2
  %.05.lcssa = phi i32 [ 1, %2 ], [ %.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %12, %.epil.preheader ]
  ret i32 %.05.lcssa

13:                                               ; preds = %13, %.lr.ph.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.new ], [ %indvars.iv.next.7, %13 ]
  %.056 = phi i32 [ 1, %.lr.ph.new ], [ %45, %13 ]
  %niter = phi i64 [ 0, %.lr.ph.new ], [ %niter.next.7, %13 ]
  %14 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv
  %15 = load i64, ptr %14, align 8, !tbaa !10
  %16 = trunc i64 %15 to i32
  %17 = mul i32 %.056, %16
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %18 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.next
  %19 = load i64, ptr %18, align 8, !tbaa !10
  %20 = trunc i64 %19 to i32
  %21 = mul i32 %17, %20
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 2
  %22 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.next.1
  %23 = load i64, ptr %22, align 8, !tbaa !10
  %24 = trunc i64 %23 to i32
  %25 = mul i32 %21, %24
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 3
  %26 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.next.2
  %27 = load i64, ptr %26, align 8, !tbaa !10
  %28 = trunc i64 %27 to i32
  %29 = mul i32 %25, %28
  %indvars.iv.next.3 = or disjoint i64 %indvars.iv, 4
  %30 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.next.3
  %31 = load i64, ptr %30, align 8, !tbaa !10
  %32 = trunc i64 %31 to i32
  %33 = mul i32 %29, %32
  %indvars.iv.next.4 = or disjoint i64 %indvars.iv, 5
  %34 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.next.4
  %35 = load i64, ptr %34, align 8, !tbaa !10
  %36 = trunc i64 %35 to i32
  %37 = mul i32 %33, %36
  %indvars.iv.next.5 = or disjoint i64 %indvars.iv, 6
  %38 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.next.5
  %39 = load i64, ptr %38, align 8, !tbaa !10
  %40 = trunc i64 %39 to i32
  %41 = mul i32 %37, %40
  %indvars.iv.next.6 = or disjoint i64 %indvars.iv, 7
  %42 = getelementptr inbounds [8 x i64], ptr %6, i64 0, i64 %indvars.iv.next.6
  %43 = load i64, ptr %42, align 8, !tbaa !10
  %44 = trunc i64 %43 to i32
  %45 = mul i32 %41, %44
  %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 %13, !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: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass