; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/362 Division 1/Problem D/D.ll (Z4fast6Matrixx)

; 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.Matrix = type { i32, %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZmlR6MatrixS0_(ptr dead_on_unwind noalias writable sret(%struct.Matrix) align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #0

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6MatrixC2Eib(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i1 noundef zeroext) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4fast6Matrixx(ptr dead_on_unwind noalias writable sret(%struct.Matrix) align 8 %0, ptr noundef %1, i64 noundef %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i1, align 1
  %8 = alloca %struct.Matrix, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %struct.Matrix, align 8
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  store i1 false, ptr %7, align 1
  call void @_ZN6MatrixC2Eib(ptr noundef nonnull align 8 dereferenceable(32) %0, i32 noundef 210, i1 noundef zeroext true)
  br label %12

12:                                               ; preds = %27, %3
  %13 = load i64, ptr %6, align 8, !tbaa !9
  %14 = icmp ne i64 %13, 0
  br i1 %14, label %15, label %35

15:                                               ; preds = %12
  %16 = load i64, ptr %6, align 8, !tbaa !9
  %17 = and i64 %16, 1
  %18 = icmp ne i64 %17, 0
  br i1 %18, label %19, label %26

19:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #3
  invoke void @_ZmlR6MatrixS0_(ptr dead_on_unwind writable sret(%struct.Matrix) align 8 %8, ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %20 unwind label %22

20:                                               ; preds = %19
  %21 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZN6MatrixaSEOS_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %8) #3
  call void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #3
  br label %26

22:                                               ; preds = %19
  %23 = landingpad { ptr, i32 }
          cleanup
  %24 = extractvalue { ptr, i32 } %23, 0
  store ptr %24, ptr %9, align 8
  %25 = extractvalue { ptr, i32 } %23, 1
  store i32 %25, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #3
  br label %39

26:                                               ; preds = %20, %15
  call void @llvm.lifetime.start.p0(i64 32, ptr %11) #3
  invoke void @_ZmlR6MatrixS0_(ptr dead_on_unwind writable sret(%struct.Matrix) align 8 %11, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %27 unwind label %31

27:                                               ; preds = %26
  %28 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZN6MatrixaSEOS_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  call void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #3
  %29 = load i64, ptr %6, align 8, !tbaa !9
  %30 = ashr i64 %29, 1
  store i64 %30, ptr %6, align 8, !tbaa !9
  br label %12, !llvm.loop !11

31:                                               ; preds = %26
  %32 = landingpad { ptr, i32 }
          cleanup
  %33 = extractvalue { ptr, i32 } %32, 0
  store ptr %33, ptr %9, align 8
  %34 = extractvalue { ptr, i32 } %32, 1
  store i32 %34, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #3
  br label %39

35:                                               ; preds = %12
  store i1 true, ptr %7, align 1
  %36 = load i1, ptr %7, align 1
  br i1 %36, label %38, label %37

37:                                               ; preds = %35
  call void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  br label %38

38:                                               ; preds = %37, %35
  ret void

39:                                               ; preds = %31, %22
  call void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  br label %40

40:                                               ; preds = %39
  %41 = load ptr, ptr %9, align 8
  %42 = load i32, ptr %10, align 4
  %43 = insertvalue { ptr, i32 } poison, ptr %41, 0
  %44 = insertvalue { ptr, i32 } %43, i32 %42, 1
  resume { ptr, i32 } %44
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZN6MatrixaSEOS_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #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 = { inlinehint 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 }

!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 = distinct !{!11, !12}
!12 = !{!"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"

%struct.Matrix = type { i32, %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZmlR6MatrixS0_(ptr dead_on_unwind noalias writable sret(%struct.Matrix) align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0

; 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 uwtable
declare dso_local void @_ZN6MatrixC2Eib(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i1 noundef zeroext) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4fast6Matrixx(ptr dead_on_unwind noalias nonnull writable sret(%struct.Matrix) align 8 %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca %struct.Matrix, align 8
  %5 = alloca %struct.Matrix, align 8
  tail call void @_ZN6MatrixC2Eib(ptr noundef nonnull align 8 dereferenceable(32) %0, i32 noundef 210, i1 noundef zeroext true)
  %.not9 = icmp eq i64 %2, 0
  br i1 %.not9, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %13
  %.0610 = phi i64 [ %15, %13 ], [ %2, %3 ]
  %6 = and i64 %.0610, 1
  %.not7 = icmp eq i64 %6, 0
  br i1 %.not7, label %12, label %7

7:                                                ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #3
  invoke void @_ZmlR6MatrixS0_(ptr dead_on_unwind nonnull writable sret(%struct.Matrix) align 8 %4, ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %8 unwind label %10

8:                                                ; preds = %7
  %9 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZN6MatrixaSEOS_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #3
  br label %12

10:                                               ; preds = %7
  %11 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #3
  br label %18

12:                                               ; preds = %8, %.lr.ph
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #3
  invoke void @_ZmlR6MatrixS0_(ptr dead_on_unwind nonnull writable sret(%struct.Matrix) align 8 %5, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %13 unwind label %16

13:                                               ; preds = %12
  %14 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZN6MatrixaSEOS_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %5) #3
  call void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #3
  %15 = ashr i64 %.0610, 1
  %.not = icmp ult i64 %.0610, 2
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

16:                                               ; preds = %12
  %17 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #3
  br label %18

._crit_edge:                                      ; preds = %13, %3
  ret void

18:                                               ; preds = %16, %10
  %.pn = phi { ptr, i32 } [ %17, %16 ], [ %11, %10 ]
  call void @_ZN6MatrixD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  resume { ptr, i32 } %.pn
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZN6MatrixaSEOS_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_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 = { inlinehint 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 }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass