; LLVM IR from tangjz/acm-icpc :: 51nod/1263.ll (Z4testiiix)

; 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, i32, [2 x [2 x i32]] }

@FP = external dso_local global i32, align 4
@A = external dso_local global %struct.Matrix, align 4
@B = external dso_local global %struct.Matrix, align 4

; 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 uwtable
define dso_local noundef zeroext i1 @_Z4testiiix(i32 noundef %0, i32 noundef %1, i32 noundef %2, i64 noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca %struct.Matrix, align 4
  %10 = alloca %struct.Matrix, align 4
  %11 = alloca %struct.Matrix, align 4
  %12 = alloca %struct.Matrix, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  store i64 %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #4
  %13 = getelementptr inbounds %struct.Matrix, ptr %9, i32 0, i32 0
  store i32 1, ptr %13, align 4, !tbaa !11
  %14 = getelementptr inbounds %struct.Matrix, ptr %9, i32 0, i32 1
  store i32 2, ptr %14, align 4, !tbaa !13
  %15 = getelementptr inbounds %struct.Matrix, ptr %9, i32 0, i32 2
  store i32 1, ptr %15, align 4, !tbaa !5
  %16 = getelementptr inbounds i32, ptr %15, i64 1
  store i32 1, ptr %16, align 4, !tbaa !5
  %17 = getelementptr inbounds [2 x i32], ptr %15, i64 1
  store i32 0, ptr %17, align 4, !tbaa !5
  %18 = getelementptr inbounds i32, ptr %17, i64 1
  store i32 0, ptr %18, align 4, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 @A, ptr align 4 %9, i64 24, i1 false), !tbaa.struct !14
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #4
  %19 = getelementptr inbounds %struct.Matrix, ptr %10, i32 0, i32 0
  store i32 2, ptr %19, align 4, !tbaa !11
  %20 = getelementptr inbounds %struct.Matrix, ptr %10, i32 0, i32 1
  store i32 2, ptr %20, align 4, !tbaa !13
  %21 = getelementptr inbounds %struct.Matrix, ptr %10, i32 0, i32 2
  store i32 0, ptr %21, align 4, !tbaa !5
  %22 = getelementptr inbounds i32, ptr %21, i64 1
  %23 = load i32, ptr %6, align 4, !tbaa !5
  %24 = load i32, ptr %7, align 4, !tbaa !5
  %25 = srem i32 %23, %24
  store i32 %25, ptr %22, align 4, !tbaa !5
  %26 = getelementptr inbounds [2 x i32], ptr %21, i64 1
  store i32 1, ptr %26, align 4, !tbaa !5
  %27 = getelementptr inbounds i32, ptr %26, i64 1
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = load i32, ptr %7, align 4, !tbaa !5
  %30 = srem i32 %28, %29
  store i32 %30, ptr %27, align 4, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 @B, ptr align 4 %10, i64 24, i1 false), !tbaa.struct !14
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #4
  %31 = load i32, ptr %7, align 4, !tbaa !5
  store i32 %31, ptr @FP, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %11) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %12) #4
  %32 = load i64, ptr %8, align 8, !tbaa !9
  call void @_ZN6Matrix3powEx(ptr dead_on_unwind writable sret(%struct.Matrix) align 4 %12, ptr noundef nonnull align 4 dereferenceable(24) @B, i64 noundef %32)
  call void @_ZNK6MatrixmlERKS_(ptr dead_on_unwind writable sret(%struct.Matrix) align 4 %11, ptr noundef nonnull align 4 dereferenceable(24) @A, ptr noundef nonnull align 4 dereferenceable(24) %12)
  %33 = call noundef zeroext i1 @_ZNK6MatrixeqERKS_(ptr noundef nonnull align 4 dereferenceable(24) @A, ptr noundef nonnull align 4 dereferenceable(24) %11)
  call void @llvm.lifetime.end.p0(i64 24, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #4
  ret i1 %33
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK6MatrixeqERKS_(ptr noundef nonnull align 4 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNK6MatrixmlERKS_(ptr dead_on_unwind noalias writable sret(%struct.Matrix) align 4, ptr noundef nonnull align 4 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN6Matrix3powEx(ptr dead_on_unwind noalias writable sret(%struct.Matrix) align 4, ptr noundef nonnull align 4 dereferenceable(24), i64 noundef) #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 = !{!"int", !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, !6, i64 0}
!12 = !{!"_ZTS6Matrix", !6, i64 0, !6, i64 4, !7, i64 8}
!13 = !{!12, !6, i64 4}
!14 = !{i64 0, i64 4, !5, i64 4, i64 4, !5, i64 8, i64 16, !15}
!15 = !{!7, !7, i64 0}


; 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, i32, [2 x [2 x i32]] }

@FP = external dso_local local_unnamed_addr global i32, align 4
@A = external dso_local global %struct.Matrix, align 4
@B = external dso_local global %struct.Matrix, align 4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress 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 zeroext i1 @_Z4testiiix(i32 noundef %0, i32 noundef %1, i32 noundef %2, i64 noundef %3) local_unnamed_addr #1 {
  %5 = alloca %struct.Matrix, align 4
  %6 = alloca %struct.Matrix, align 4
  store <4 x i32> <i32 1, i32 2, i32 1, i32 1>, ptr @A, align 4
  store i32 0, ptr getelementptr inbounds (i8, ptr @A, i64 16), align 4
  store i32 0, ptr getelementptr inbounds (i8, ptr @A, i64 20), align 4, !tbaa !5
  %7 = srem i32 %1, %2
  %8 = srem i32 %0, %2
  store i32 2, ptr @B, align 4, !tbaa !8
  store i32 2, ptr getelementptr inbounds (i8, ptr @B, i64 4), align 4, !tbaa !8
  store i32 0, ptr getelementptr inbounds (i8, ptr @B, i64 8), align 4
  store i32 %7, ptr getelementptr inbounds (i8, ptr @B, i64 12), align 4
  store i32 1, ptr getelementptr inbounds (i8, ptr @B, i64 16), align 4
  store i32 %8, ptr getelementptr inbounds (i8, ptr @B, i64 20), align 4, !tbaa !5
  store i32 %2, ptr @FP, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %6) #2
  call void @_ZN6Matrix3powEx(ptr dead_on_unwind nonnull writable sret(%struct.Matrix) align 4 %6, ptr noundef nonnull align 4 dereferenceable(24) @B, i64 noundef %3)
  call void @_ZNK6MatrixmlERKS_(ptr dead_on_unwind nonnull writable sret(%struct.Matrix) align 4 %5, ptr noundef nonnull align 4 dereferenceable(24) @A, ptr noundef nonnull align 4 dereferenceable(24) %6)
  %9 = call noundef zeroext i1 @_ZNK6MatrixeqERKS_(ptr noundef nonnull align 4 dereferenceable(24) @A, ptr noundef nonnull align 4 dereferenceable(24) %5)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %6) #2
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #2
  ret i1 %9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK6MatrixeqERKS_(ptr noundef nonnull align 4 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNK6MatrixmlERKS_(ptr dead_on_unwind noalias writable sret(%struct.Matrix) align 4, ptr noundef nonnull align 4 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN6Matrix3powEx(ptr dead_on_unwind noalias writable sret(%struct.Matrix) align 4, ptr noundef nonnull align 4 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass