; LLVM IR from sunkafei/xcpc-algorithm-templates :: 算法/高精度 (大整数类)

; 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.bign = type { i32, [1000 x i32] }

@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [6 x i8], align 1

; 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
declare dso_local void @_Z5printRK4bign(ptr noundef nonnull align 4 dereferenceable(4004)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef) unnamed_addr #1 align 2

; 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 uwtable
declare dso_local void @_Z3gcd4bignS_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef byval(%struct.bign) align 8, ptr noundef byval(%struct.bign) align 8) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 {
  %1 = alloca i32, align 4
  %2 = alloca %struct.bign, align 4
  %3 = alloca %struct.bign, align 4
  %4 = alloca %struct.bign, align 4
  %5 = alloca %struct.bign, align 4
  %6 = alloca %struct.bign, align 4
  %7 = alloca %struct.bign, align 8
  %8 = alloca %struct.bign, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4004, ptr %2) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %2, ptr noundef @.str.5)
  call void @llvm.lifetime.start.p0(i64 4004, ptr %3) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %3, ptr noundef @.str.6)
  call void @llvm.lifetime.start.p0(i64 4004, ptr %4) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %4, ptr noundef @.str.2)
  call void @llvm.lifetime.start.p0(i64 4004, ptr %5) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %5, ptr noundef @.str.2)
  call void @llvm.lifetime.start.p0(i64 4004, ptr %6) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %7, ptr align 4 %2, i64 4004, i1 false), !tbaa.struct !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %8, ptr align 4 %3, i64 4004, i1 false), !tbaa.struct !5
  call void @_Z3gcd4bignS_(ptr dead_on_unwind writable sret(%struct.bign) align 4 %6, ptr noundef byval(%struct.bign) align 8 %7, ptr noundef byval(%struct.bign) align 8 %8)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %4, ptr align 4 %6, i64 4004, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 4004, ptr %6) #4
  call void @_Z5printRK4bign(ptr noundef nonnull align 4 dereferenceable(4004) %4)
  call void @llvm.lifetime.end.p0(i64 4004, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr %2) #4
  ret i32 0
}

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 norecurse 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 = !{i64 0, i64 4, !6, i64 4, i64 4000, !10}
!6 = !{!7, !7, i64 0}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!8, !8, 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.bign = type { i32, [1000 x i32] }

@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [6 x i8], align 1

; 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 uwtable
declare dso_local void @_Z5printRK4bign(ptr noundef nonnull align 4 dereferenceable(4004)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress 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 uwtable
declare dso_local void @_Z3gcd4bignS_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef byval(%struct.bign) align 8, ptr noundef byval(%struct.bign) align 8) local_unnamed_addr #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 {
  %1 = alloca %struct.bign, align 8
  %2 = alloca %struct.bign, align 8
  %3 = alloca %struct.bign, align 4
  %4 = alloca %struct.bign, align 4
  %5 = alloca %struct.bign, align 4
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %1) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %1, ptr noundef nonnull @.str.5)
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %2) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %2, ptr noundef nonnull @.str.6)
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %3) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %3, ptr noundef nonnull @.str.2)
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %4) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %4, ptr noundef nonnull @.str.2)
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %5) #4
  call void @_Z3gcd4bignS_(ptr dead_on_unwind nonnull writable sret(%struct.bign) align 4 %5, ptr noundef nonnull byval(%struct.bign) align 8 %1, ptr noundef nonnull byval(%struct.bign) align 8 %2)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(4004) %3, ptr noundef nonnull align 4 dereferenceable(4004) %5, i64 4004, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %5) #4
  call void @_Z5printRK4bign(ptr noundef nonnull align 4 dereferenceable(4004) %3)
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %1) #4
  ret i32 0
}

attributes #0 = { mustprogress 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress norecurse 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 = !{i64 0, i64 4, !6, i64 4, i64 4000, !10}
!6 = !{!7, !7, i64 0}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!8, !8, i64 0}


; Effective O3 passes: DSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,SROAPass