; LLVM IR from NervanaSystems/ngraph :: src/ngraph/descriptor/layout (dense_tensor_layout)

; 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.ngraph::Strides" = type { %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [33 x i8], align 1
@_ZTIN6ngraph12ngraph_errorE = external dso_local constant { ptr, ptr, ptr }, align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZN6ngraph10descriptor6layout17DenseTensorLayout16get_index_offsetERKSt6vectorImSaImEE(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.ngraph::Strides", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #4
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds ptr, ptr %11, i64 4
  %13 = load ptr, ptr %12, align 8
  call void %13(ptr dead_on_unwind writable sret(%"class.ngraph::Strides") align 8 %5, ptr noundef nonnull align 8 dereferenceable(48) %10)
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = call noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #4
  %16 = call noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  %17 = icmp ne i64 %15, %16
  br i1 %17, label %18, label %29

18:                                               ; preds = %2
  %19 = call ptr @__cxa_allocate_exception(i64 16) #4
  invoke void @_ZN6ngraph12ngraph_errorC2EPKc(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef @.str)
          to label %20 unwind label %21

20:                                               ; preds = %18
  invoke void @__cxa_throw(ptr %19, ptr @_ZTIN6ngraph12ngraph_errorE, ptr @_ZNSt13runtime_errorD2Ev) #5
          to label %58 unwind label %25

21:                                               ; preds = %18
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %6, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %7, align 4
  call void @__cxa_free_exception(ptr %19) #4
  br label %52

25:                                               ; preds = %20
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %6, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %7, align 4
  br label %52

29:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i64 0, ptr %8, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  store i64 0, ptr %9, align 8, !tbaa !11
  br label %30

30:                                               ; preds = %47, %29
  %31 = load i64, ptr %9, align 8, !tbaa !11
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = call noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %32) #4
  %34 = icmp ult i64 %31, %33
  br i1 %34, label %36, label %35

35:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  br label %50

36:                                               ; preds = %30
  %37 = load i64, ptr %9, align 8, !tbaa !11
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %37) #4
  %39 = load i64, ptr %38, align 8, !tbaa !11
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = load i64, ptr %9, align 8, !tbaa !11
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %40, i64 noundef %41) #4
  %43 = load i64, ptr %42, align 8, !tbaa !11
  %44 = mul i64 %39, %43
  %45 = load i64, ptr %8, align 8, !tbaa !11
  %46 = add i64 %45, %44
  store i64 %46, ptr %8, align 8, !tbaa !11
  br label %47

47:                                               ; preds = %36
  %48 = load i64, ptr %9, align 8, !tbaa !11
  %49 = add i64 %48, 1
  store i64 %49, ptr %9, align 8, !tbaa !11
  br label %30, !llvm.loop !13

50:                                               ; preds = %35
  %51 = load i64, ptr %8, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @_ZNSt6vectorImSaImEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  ret i64 %51

52:                                               ; preds = %25, %21
  call void @_ZNSt6vectorImSaImEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  br label %53

53:                                               ; preds = %52
  %54 = load ptr, ptr %6, align 8
  %55 = load i32, ptr %7, align 4
  %56 = insertvalue { ptr, i32 } poison, ptr %54, 0
  %57 = insertvalue { ptr, i32 } %56, i32 %55, 1
  resume { ptr, i32 } %57

58:                                               ; preds = %20
  unreachable
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

declare ptr @__cxa_allocate_exception(i64)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6ngraph12ngraph_errorC2EPKc(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

declare void @__cxa_free_exception(ptr)

; Function Attrs: nounwind
declare void @_ZNSt13runtime_errorD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #3

declare void @__cxa_throw(ptr, ptr, ptr)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorImSaImEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { 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 #3 = { nounwind "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 #4 = { nounwind }
attributes #5 = { noreturn }

!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 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !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"

%"class.ngraph::Strides" = type { %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned long, std::allocator<unsigned long>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [33 x i8], align 1
@_ZTIN6ngraph12ngraph_errorE = external dso_local constant { ptr, ptr, ptr }, align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZN6ngraph10descriptor6layout17DenseTensorLayout16get_index_offsetERKSt6vectorImSaImEE(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.ngraph::Strides", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 32
  %6 = load ptr, ptr %5, align 8
  call void %6(ptr dead_on_unwind nonnull writable sret(%"class.ngraph::Strides") align 8 %3, ptr noundef nonnull align 8 dereferenceable(48) %0)
  %7 = call noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %8 = call noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  %.not = icmp eq i64 %7, %8
  br i1 %.not, label %.preheader, label %10

.preheader:                                       ; preds = %2
  %9 = call noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %.not17 = icmp eq i64 %9, 0
  br i1 %.not17, label %._crit_edge, label %.lr.ph

10:                                               ; preds = %2
  %11 = call ptr @__cxa_allocate_exception(i64 16) #4
  invoke void @_ZN6ngraph12ngraph_errorC2EPKc(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull @.str)
          to label %12 unwind label %13

12:                                               ; preds = %10
  invoke void @__cxa_throw(ptr nonnull %11, ptr nonnull @_ZTIN6ngraph12ngraph_errorE, ptr nonnull @_ZNSt13runtime_errorD2Ev) #5
          to label %27 unwind label %15

13:                                               ; preds = %10
  %14 = landingpad { ptr, i32 }
          cleanup
  call void @__cxa_free_exception(ptr %11) #4
  br label %26

15:                                               ; preds = %12
  %16 = landingpad { ptr, i32 }
          cleanup
  br label %26

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %.011.lcssa = phi i64 [ 0, %.preheader ], [ %22, %.lr.ph ]
  call void @_ZNSt6vectorImSaImEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  ret i64 %.011.lcssa

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.016 = phi i64 [ %23, %.lr.ph ], [ 0, %.preheader ]
  %.01115 = phi i64 [ %22, %.lr.ph ], [ 0, %.preheader ]
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.016) #4
  %18 = load i64, ptr %17, align 8, !tbaa !8
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.016) #4
  %20 = load i64, ptr %19, align 8, !tbaa !8
  %21 = mul i64 %20, %18
  %22 = add i64 %21, %.01115
  %23 = add nuw i64 %.016, 1
  %24 = call noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %25 = icmp ult i64 %23, %24
  br i1 %25, label %.lr.ph, label %._crit_edge, !llvm.loop !11

26:                                               ; preds = %15, %13
  %.pn = phi { ptr, i32 } [ %16, %15 ], [ %14, %13 ]
  call void @_ZNSt6vectorImSaImEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  resume { ptr, i32 } %.pn

27:                                               ; preds = %12
  unreachable
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorImSaImEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6ngraph12ngraph_errorC2EPKc(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

declare void @__cxa_free_exception(ptr) local_unnamed_addr

; Function Attrs: nounwind
declare void @_ZNSt13runtime_errorD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #3

declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorImSaImEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorImSaImEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nounwind "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 #4 = { nounwind }
attributes #5 = { noreturn }

!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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass