; LLVM IR from artvns/SimpleFvm :: simplefvm/src/MeshLoader/DomainDecomposition/PartsCellsNumsExtraction/Horizontal_59535825 (ZN10meshloader18HorizontalFaceNums8findNumsEv)

; 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.meshloader::HorizontalFaceNums" = type { ptr, ptr, ptr, ptr, %"class.std::vector", %"class.std::vector", %"class.std::vector.0", %"class.std::vector.0" }
%"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 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<unsigned long>, std::allocator<std::vector<unsigned long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<unsigned long>, std::allocator<std::vector<unsigned long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<unsigned long>, std::allocator<std::vector<unsigned long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<unsigned long>, std::allocator<std::vector<unsigned long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN10meshloader18HorizontalFaceNums8findNumsEv(ptr noundef nonnull align 8 dereferenceable(128) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %7 = getelementptr inbounds %"class.meshloader::HorizontalFaceNums", ptr %6, i32 0, i32 0
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = call noundef i64 @_ZNK10meshloader10BaseMatrix13getRowsAmountEv(ptr noundef nonnull align 8 dereferenceable(40) %8)
  store i64 %9, ptr %3, align 8, !tbaa !19
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %10 = getelementptr inbounds %"class.meshloader::HorizontalFaceNums", ptr %6, i32 0, i32 0
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = call noundef i64 @_ZNK10meshloader10BaseMatrix13getColsAmountEv(ptr noundef nonnull align 8 dereferenceable(40) %11)
  store i64 %12, ptr %4, align 8, !tbaa !19
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !19
  br label %13

13:                                               ; preds = %23, %1
  %14 = load i64, ptr %5, align 8, !tbaa !19
  %15 = load i64, ptr %3, align 8, !tbaa !19
  %16 = icmp ult i64 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %26

18:                                               ; preds = %13
  %19 = load i64, ptr %5, align 8, !tbaa !19
  %20 = load i64, ptr %4, align 8, !tbaa !19
  call void @_ZN10meshloader18HorizontalFaceNums12checkTopSideEmm(ptr noundef nonnull align 8 dereferenceable(128) %6, i64 noundef %19, i64 noundef %20)
  %21 = load i64, ptr %5, align 8, !tbaa !19
  %22 = load i64, ptr %4, align 8, !tbaa !19
  call void @_ZN10meshloader18HorizontalFaceNums15checkBottomSideEmm(ptr noundef nonnull align 8 dereferenceable(128) %6, i64 noundef %21, i64 noundef %22)
  br label %23

23:                                               ; preds = %18
  %24 = load i64, ptr %5, align 8, !tbaa !19
  %25 = add i64 %24, 1
  store i64 %25, ptr %5, align 8, !tbaa !19
  br label %13, !llvm.loop !21

26:                                               ; preds = %17
  call void @_ZN10meshloader18HorizontalFaceNums18uniteTopBottomSetsEv(ptr noundef nonnull align 8 dereferenceable(128) %6)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

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

declare noundef i64 @_ZNK10meshloader10BaseMatrix13getRowsAmountEv(ptr noundef nonnull align 8 dereferenceable(40)) #2

declare noundef i64 @_ZNK10meshloader10BaseMatrix13getColsAmountEv(ptr noundef nonnull align 8 dereferenceable(40)) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN10meshloader18HorizontalFaceNums12checkTopSideEmm(ptr noundef nonnull align 8 dereferenceable(128), i64 noundef, i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN10meshloader18HorizontalFaceNums15checkBottomSideEmm(ptr noundef nonnull align 8 dereferenceable(128), i64 noundef, i64 noundef) #0 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 uwtable
declare dso_local void @_ZN10meshloader18HorizontalFaceNums18uniteTopBottomSetsEv(ptr noundef nonnull align 8 dereferenceable(128)) #0 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 = { "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 }

!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, !6, i64 0}
!10 = !{!"_ZTSN10meshloader18HorizontalFaceNumsE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !11, i64 32, !11, i64 56, !15, i64 80, !15, i64 104}
!11 = !{!"_ZTSSt6vectorImSaImEE", !12, i64 0}
!12 = !{!"_ZTSSt12_Vector_baseImSaImEE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseImSaImEE12_Vector_implE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseImSaImEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!15 = !{!"_ZTSSt6vectorIS_ImSaImEESaIS1_EE", !16, i64 0}
!16 = !{!"_ZTSSt12_Vector_baseISt6vectorImSaImEESaIS2_EE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseISt6vectorImSaImEESaIS2_EE12_Vector_implE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseISt6vectorImSaImEESaIS2_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!19 = !{!20, !20, i64 0}
!20 = !{!"long", !7, i64 0}
!21 = distinct !{!21, !22}
!22 = !{!"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 uwtable
define dso_local void @_ZN10meshloader18HorizontalFaceNums8findNumsEv(ptr noundef nonnull align 8 dereferenceable(128) %0) local_unnamed_addr #0 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = tail call noundef i64 @_ZNK10meshloader10BaseMatrix13getRowsAmountEv(ptr noundef nonnull align 8 dereferenceable(40) %2)
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = tail call noundef i64 @_ZNK10meshloader10BaseMatrix13getColsAmountEv(ptr noundef nonnull align 8 dereferenceable(40) %4)
  %.not = icmp eq i64 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  tail call void @_ZN10meshloader18HorizontalFaceNums18uniteTopBottomSetsEv(ptr noundef nonnull align 8 dereferenceable(128) %0)
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.07 = phi i64 [ %6, %.lr.ph ], [ 0, %1 ]
  tail call void @_ZN10meshloader18HorizontalFaceNums12checkTopSideEmm(ptr noundef nonnull align 8 dereferenceable(128) %0, i64 noundef %.07, i64 noundef %5)
  tail call void @_ZN10meshloader18HorizontalFaceNums15checkBottomSideEmm(ptr noundef nonnull align 8 dereferenceable(128) %0, i64 noundef %.07, i64 noundef %5)
  %6 = add nuw i64 %.07, 1
  %exitcond.not = icmp eq i64 %6, %3
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !18
}

declare noundef i64 @_ZNK10meshloader10BaseMatrix13getRowsAmountEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #1

declare noundef i64 @_ZNK10meshloader10BaseMatrix13getColsAmountEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN10meshloader18HorizontalFaceNums12checkTopSideEmm(ptr noundef nonnull align 8 dereferenceable(128), i64 noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN10meshloader18HorizontalFaceNums15checkBottomSideEmm(ptr noundef nonnull align 8 dereferenceable(128), i64 noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN10meshloader18HorizontalFaceNums18uniteTopBottomSetsEv(ptr noundef nonnull align 8 dereferenceable(128)) local_unnamed_addr #0 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 = { "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 = !{!"_ZTSN10meshloader18HorizontalFaceNumsE", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32, !10, i64 56, !14, i64 80, !14, i64 104}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSSt6vectorImSaImEE", !11, i64 0}
!11 = !{!"_ZTSSt12_Vector_baseImSaImEE", !12, i64 0}
!12 = !{!"_ZTSNSt12_Vector_baseImSaImEE12_Vector_implE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseImSaImEE17_Vector_impl_dataE", !7, i64 0, !7, i64 8, !7, i64 16}
!14 = !{!"_ZTSSt6vectorIS_ImSaImEESaIS1_EE", !15, i64 0}
!15 = !{!"_ZTSSt12_Vector_baseISt6vectorImSaImEESaIS2_EE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseISt6vectorImSaImEESaIS2_EE12_Vector_implE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseISt6vectorImSaImEESaIS2_EE17_Vector_impl_dataE", !7, i64 0, !7, i64 8, !7, i64 16}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass