; LLVM IR from sunkafei/xcpc-algorithm-templates :: 算法/高精度/大整数类.ll (ZdvRK4bignS1_)

; 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.3 = external hidden unnamed_addr constant [2 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 @_ZplRK4bignS1_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), 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: mustprogress uwtable
declare dso_local void @_ZmiRK4bignS1_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZmlRK4bignS1_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZdvRK4bigni(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZdvRK4bignS1_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4 %0, ptr noundef nonnull align 4 dereferenceable(4004) %1, ptr noundef nonnull align 4 dereferenceable(4004) %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %struct.bign, align 4
  %7 = alloca %struct.bign, align 4
  %8 = alloca %struct.bign, align 4
  %9 = alloca %struct.bign, align 4
  %10 = alloca %struct.bign, align 4
  %11 = alloca %struct.bign, align 4
  %12 = alloca %struct.bign, align 4
  %13 = alloca %struct.bign, align 4
  %14 = alloca %struct.bign, align 4
  store ptr %1, ptr %4, align 8, !tbaa !5
  store ptr %2, ptr %5, align 8, !tbaa !5
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef @.str.2)
  call void @llvm.lifetime.start.p0(i64 4004, ptr %6) #4
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 4 %15, i64 4004, i1 false), !tbaa.struct !9
  br label %16

16:                                               ; preds = %24, %3
  %17 = call noundef zeroext i1 @_ZltRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef nonnull align 4 dereferenceable(4004) %6)
  br i1 %17, label %18, label %25

18:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 4004, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr %10) #4
  call void @_ZmiRK4bignS1_(ptr dead_on_unwind writable sret(%struct.bign) align 4 %10, ptr noundef nonnull align 4 dereferenceable(4004) %6, ptr noundef nonnull align 4 dereferenceable(4004) %0)
  call void @llvm.lifetime.start.p0(i64 4004, ptr %11) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %11, ptr noundef @.str.3)
  call void @_ZplRK4bignS1_(ptr dead_on_unwind writable sret(%struct.bign) align 4 %9, ptr noundef nonnull align 4 dereferenceable(4004) %10, ptr noundef nonnull align 4 dereferenceable(4004) %11)
  call void @_ZdvRK4bigni(ptr dead_on_unwind writable sret(%struct.bign) align 4 %8, ptr noundef nonnull align 4 dereferenceable(4004) %9, i32 noundef 2)
  call void @_ZplRK4bignS1_(ptr dead_on_unwind writable sret(%struct.bign) align 4 %7, ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef nonnull align 4 dereferenceable(4004) %8)
  call void @llvm.lifetime.end.p0(i64 4004, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr %12) #4
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  call void @_ZmlRK4bignS1_(ptr dead_on_unwind writable sret(%struct.bign) align 4 %12, ptr noundef nonnull align 4 dereferenceable(4004) %7, ptr noundef nonnull align 4 dereferenceable(4004) %19)
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = call noundef zeroext i1 @_ZleRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004) %12, ptr noundef nonnull align 4 dereferenceable(4004) %20)
  call void @llvm.lifetime.end.p0(i64 4004, ptr %12) #4
  br i1 %21, label %22, label %23

22:                                               ; preds = %18
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %0, ptr align 4 %7, i64 4004, i1 false), !tbaa.struct !9
  br label %24

23:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4004, ptr %13) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr %14) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %14, ptr noundef @.str.3)
  call void @_ZmiRK4bignS1_(ptr dead_on_unwind writable sret(%struct.bign) align 4 %13, ptr noundef nonnull align 4 dereferenceable(4004) %7, ptr noundef nonnull align 4 dereferenceable(4004) %14)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 4 %13, i64 4004, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.end.p0(i64 4004, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr %13) #4
  br label %24

24:                                               ; preds = %23, %22
  call void @llvm.lifetime.end.p0(i64 4004, ptr %7) #4
  br label %16, !llvm.loop !13

25:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4004, ptr %6) #4
  ret void
}

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZltRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZleRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) #3

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 = { 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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i64 0, i64 4, !10, i64 4, i64 4000, !12}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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.bign = type { i32, [1000 x i32] }

@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 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 @_ZplRK4bignS1_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), 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 uwtable
declare dso_local void @_ZmiRK4bignS1_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZmlRK4bignS1_(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZdvRK4bigni(ptr dead_on_unwind noalias writable sret(%struct.bign) align 4, ptr noundef nonnull align 4 dereferenceable(4004), i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZdvRK4bignS1_(ptr dead_on_unwind noalias nonnull writable sret(%struct.bign) align 4 %0, ptr noundef nonnull align 4 dereferenceable(4004) %1, ptr noundef nonnull align 4 dereferenceable(4004) %2) local_unnamed_addr #1 {
  %4 = alloca %struct.bign, align 4
  %5 = alloca %struct.bign, align 4
  %6 = alloca %struct.bign, align 4
  %7 = alloca %struct.bign, align 4
  %8 = alloca %struct.bign, align 4
  %9 = alloca %struct.bign, align 4
  %10 = alloca %struct.bign, align 4
  %11 = alloca %struct.bign, align 4
  %12 = alloca %struct.bign, align 4
  tail call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef nonnull @.str.2)
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(4004) %4, ptr noundef nonnull align 4 dereferenceable(4004) %1, i64 4004, i1 false), !tbaa.struct !5
  %13 = call noundef zeroext i1 @_ZltRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef nonnull align 4 dereferenceable(4004) %4)
  br i1 %13, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3, %17
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %6) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %7) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %8) #4
  call void @_ZmiRK4bignS1_(ptr dead_on_unwind nonnull writable sret(%struct.bign) align 4 %8, ptr noundef nonnull align 4 dereferenceable(4004) %4, ptr noundef nonnull align 4 dereferenceable(4004) %0)
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %9) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %9, ptr noundef nonnull @.str.3)
  call void @_ZplRK4bignS1_(ptr dead_on_unwind nonnull writable sret(%struct.bign) align 4 %7, ptr noundef nonnull align 4 dereferenceable(4004) %8, ptr noundef nonnull align 4 dereferenceable(4004) %9)
  call void @_ZdvRK4bigni(ptr dead_on_unwind nonnull writable sret(%struct.bign) align 4 %6, ptr noundef nonnull align 4 dereferenceable(4004) %7, i32 noundef 2)
  call void @_ZplRK4bignS1_(ptr dead_on_unwind nonnull writable sret(%struct.bign) align 4 %5, ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef nonnull align 4 dereferenceable(4004) %6)
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %6) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %10) #4
  call void @_ZmlRK4bignS1_(ptr dead_on_unwind nonnull writable sret(%struct.bign) align 4 %10, ptr noundef nonnull align 4 dereferenceable(4004) %5, ptr noundef nonnull align 4 dereferenceable(4004) %2)
  %14 = call noundef zeroext i1 @_ZleRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004) %10, ptr noundef nonnull align 4 dereferenceable(4004) %1)
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %10) #4
  br i1 %14, label %15, label %16

15:                                               ; preds = %.lr.ph
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef nonnull align 4 dereferenceable(4004) %5, i64 4004, i1 false), !tbaa.struct !5
  br label %17

16:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %11) #4
  call void @llvm.lifetime.start.p0(i64 4004, ptr nonnull %12) #4
  call void @_ZN4bignC2EPKc(ptr noundef nonnull align 4 dereferenceable(4004) %12, ptr noundef nonnull @.str.3)
  call void @_ZmiRK4bignS1_(ptr dead_on_unwind nonnull writable sret(%struct.bign) align 4 %11, ptr noundef nonnull align 4 dereferenceable(4004) %5, ptr noundef nonnull align 4 dereferenceable(4004) %12)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(4004) %4, ptr noundef nonnull align 4 dereferenceable(4004) %11, i64 4004, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %12) #4
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %11) #4
  br label %17

17:                                               ; preds = %16, %15
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %5) #4
  %18 = call noundef zeroext i1 @_ZltRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004) %0, ptr noundef nonnull align 4 dereferenceable(4004) %4)
  br i1 %18, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge:                                      ; preds = %17, %3
  call void @llvm.lifetime.end.p0(i64 4004, ptr nonnull %4) #4
  ret void
}

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZltRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZleRK4bignS1_(ptr noundef nonnull align 4 dereferenceable(4004), ptr noundef nonnull align 4 dereferenceable(4004)) local_unnamed_addr #3

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 = { 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 #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}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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