; LLVM IR from Tinker-Twins/3D-LIDAR-Localization :: fast_gicp/thirdparty/nvbio/contrib/moderngpu/src (sparsematrix)

; 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.mgpu::SparseMatrix" = type { i32, i32, i32, %"class.std::vector.3", %"class.std::vector.3", %"class.std::vector.8" }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; 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
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_ZN4mgpu19ComputeProductCountERKNS_12SparseMatrixES2_(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(88) %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = 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
  store i64 0, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !11
  br label %10

10:                                               ; preds = %56, %2
  %11 = load i32, ptr %6, align 4, !tbaa !11
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %"struct.mgpu::SparseMatrix", ptr %12, i32 0, i32 2
  %14 = load i32, ptr %13, align 8, !tbaa !13
  %15 = icmp slt i32 %11, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %59

17:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %"struct.mgpu::SparseMatrix", ptr %18, i32 0, i32 4
  %20 = load i32, ptr %6, align 4, !tbaa !11
  %21 = sext i32 %20 to i64
  %22 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %21) #2
  %23 = load i32, ptr %22, align 4, !tbaa !11
  store i32 %23, ptr %7, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds %"struct.mgpu::SparseMatrix", ptr %24, i32 0, i32 3
  %26 = load i32, ptr %7, align 4, !tbaa !11
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %27) #2
  %29 = load i32, ptr %28, align 4, !tbaa !11
  store i32 %29, ptr %8, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %30 = load i32, ptr %7, align 4, !tbaa !11
  %31 = add nsw i32 %30, 1
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %"struct.mgpu::SparseMatrix", ptr %32, i32 0, i32 1
  %34 = load i32, ptr %33, align 4, !tbaa !23
  %35 = icmp slt i32 %31, %34
  br i1 %35, label %36, label %44

36:                                               ; preds = %17
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = getelementptr inbounds %"struct.mgpu::SparseMatrix", ptr %37, i32 0, i32 3
  %39 = load i32, ptr %7, align 4, !tbaa !11
  %40 = add nsw i32 %39, 1
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %38, i64 noundef %41) #2
  %43 = load i32, ptr %42, align 4, !tbaa !11
  br label %48

44:                                               ; preds = %17
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = getelementptr inbounds %"struct.mgpu::SparseMatrix", ptr %45, i32 0, i32 2
  %47 = load i32, ptr %46, align 8, !tbaa !13
  br label %48

48:                                               ; preds = %44, %36
  %49 = phi i32 [ %43, %36 ], [ %47, %44 ]
  store i32 %49, ptr %9, align 4, !tbaa !11
  %50 = load i32, ptr %9, align 4, !tbaa !11
  %51 = load i32, ptr %8, align 4, !tbaa !11
  %52 = sub nsw i32 %50, %51
  %53 = sext i32 %52 to i64
  %54 = load i64, ptr %5, align 8, !tbaa !9
  %55 = add nsw i64 %54, %53
  store i64 %55, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  br label %56

56:                                               ; preds = %48
  %57 = load i32, ptr %6, align 4, !tbaa !11
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %6, align 4, !tbaa !11
  br label %10, !llvm.loop !24

59:                                               ; preds = %16
  %60 = load i64, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret i64 %60
}

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 = !{!"long long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !12, i64 8}
!14 = !{!"_ZTSN4mgpu12SparseMatrixE", !12, i64 0, !12, i64 4, !12, i64 8, !15, i64 16, !15, i64 40, !19, i64 64}
!15 = !{!"_ZTSSt6vectorIiSaIiEE", !16, i64 0}
!16 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!19 = !{!"_ZTSSt6vectorIdSaIdEE", !20, i64 0}
!20 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !21, i64 0}
!21 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !22, i64 0}
!22 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!23 = !{!14, !12, i64 4}
!24 = distinct !{!24, !25}
!25 = !{!"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 nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_ZN4mgpu19ComputeProductCountERKNS_12SparseMatrixES2_(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(88) %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load i32, ptr %3, align 8, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %6 = getelementptr inbounds i8, ptr %0, i64 40
  %7 = getelementptr inbounds i8, ptr %1, i64 16
  %8 = getelementptr inbounds i8, ptr %1, i64 4
  %9 = getelementptr inbounds i8, ptr %1, i64 8
  br label %10

._crit_edge:                                      ; preds = %22, %2
  %.0.lcssa = phi i64 [ 0, %2 ], [ %26, %22 ]
  ret i64 %.0.lcssa

10:                                               ; preds = %.lr.ph, %22
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %22 ]
  %.018 = phi i64 [ 0, %.lr.ph ], [ %26, %22 ]
  %11 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %indvars.iv) #1
  %12 = load i32, ptr %11, align 4, !tbaa !19
  %13 = sext i32 %12 to i64
  %14 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %13) #1
  %15 = load i32, ptr %14, align 4, !tbaa !19
  %16 = add nsw i32 %12, 1
  %17 = load i32, ptr %8, align 4, !tbaa !20
  %18 = icmp slt i32 %16, %17
  br i1 %18, label %19, label %22

19:                                               ; preds = %10
  %20 = sext i32 %16 to i64
  %21 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %20) #1
  br label %22

22:                                               ; preds = %10, %19
  %.in = phi ptr [ %21, %19 ], [ %9, %10 ]
  %23 = load i32, ptr %.in, align 4, !tbaa !19
  %24 = sub nsw i32 %23, %15
  %25 = sext i32 %24 to i64
  %26 = add nsw i64 %.018, %25
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %27 = load i32, ptr %3, align 8, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = icmp slt i64 %indvars.iv.next, %28
  br i1 %29, label %10, label %._crit_edge, !llvm.loop !21
}

attributes #0 = { 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 #1 = { 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, !7, i64 8}
!6 = !{!"_ZTSN4mgpu12SparseMatrixE", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16, !10, i64 40, !15, i64 64}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSSt6vectorIiSaIiEE", !11, i64 0}
!11 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !12, i64 0}
!12 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !14, i64 0, !14, i64 8, !14, i64 16}
!14 = !{!"any pointer", !8, i64 0}
!15 = !{!"_ZTSSt6vectorIdSaIdEE", !16, i64 0}
!16 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !14, i64 0, !14, i64 8, !14, i64 16}
!19 = !{!7, !7, i64 0}
!20 = !{!6, !7, i64 4}
!21 = distinct !{!21, !22}
!22 = !{!"llvm.loop.mustprogress"}


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