; LLVM IR from ShahjalalShohag/code-library :: Math/Polynomial.ll (Z3gcd4polyS_)

; 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.poly = type { %"class.std::vector.6" }
%"class.std::vector.6" = type { %"struct.std::_Vector_base.7" }
%"struct.std::_Vector_base.7" = type { %"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl" }
%"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl" = type { %"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3gcd4polyS_(ptr dead_on_unwind noalias writable sret(%struct.poly) align 8 %0, ptr noundef %1, ptr noundef %2) #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %struct.poly, align 8
  %8 = alloca i1, align 1
  %9 = alloca %struct.poly, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i1, align 1
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %13 = call noundef zeroext i1 @_ZNK4poly7is_zeroEv(ptr noundef nonnull align 8 dereferenceable(24) %2)
  store i1 false, ptr %8, align 1
  store i1 false, ptr %12, align 1
  br i1 %13, label %14, label %15

14:                                               ; preds = %3
  call void @_ZN4polyC2ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1)
  br label %18

15:                                               ; preds = %3
  call void @_ZN4polyC2ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 8 dereferenceable(24) %2)
  store i1 true, ptr %8, align 1
  invoke void @_ZNK4polyrmERKS_(ptr dead_on_unwind writable sret(%struct.poly) align 8 %9, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(24) %2)
          to label %16 unwind label %25

16:                                               ; preds = %15
  store i1 true, ptr %12, align 1
  invoke void @_Z3gcd4polyS_(ptr dead_on_unwind writable sret(%struct.poly) align 8 %0, ptr noundef %7, ptr noundef %9)
          to label %17 unwind label %29

17:                                               ; preds = %16
  br label %18

18:                                               ; preds = %17, %14
  %19 = load i1, ptr %12, align 1
  br i1 %19, label %20, label %21

20:                                               ; preds = %18
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #3
  br label %21

21:                                               ; preds = %20, %18
  %22 = load i1, ptr %8, align 1
  br i1 %22, label %23, label %24

23:                                               ; preds = %21
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  br label %24

24:                                               ; preds = %23, %21
  ret void

25:                                               ; preds = %15
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %10, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %11, align 4
  br label %36

29:                                               ; preds = %16
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %10, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %11, align 4
  %33 = load i1, ptr %12, align 1
  br i1 %33, label %34, label %35

34:                                               ; preds = %29
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #3
  br label %35

35:                                               ; preds = %34, %29
  br label %36

36:                                               ; preds = %35, %25
  %37 = load i1, ptr %8, align 1
  br i1 %37, label %38, label %39

38:                                               ; preds = %36
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  br label %39

39:                                               ; preds = %38, %36
  br label %40

40:                                               ; preds = %39
  %41 = load ptr, ptr %10, align 8
  %42 = load i32, ptr %11, align 4
  %43 = insertvalue { ptr, i32 } poison, ptr %41, 0
  %44 = insertvalue { ptr, i32 } %43, i32 %42, 1
  resume { ptr, i32 } %44
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK4poly7is_zeroEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN4polyC2ERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK4polyrmERKS_(ptr dead_on_unwind noalias writable sret(%struct.poly) align 8, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

attributes #0 = { 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 #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 = { inlinehint 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 #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"}


; 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.poly = type { %"class.std::vector.6" }
%"class.std::vector.6" = type { %"struct.std::_Vector_base.7" }
%"struct.std::_Vector_base.7" = type { %"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl" }
%"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl" = type { %"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<modint<998244353>, std::allocator<modint<998244353>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3gcd4polyS_(ptr dead_on_unwind noalias writable sret(%struct.poly) align 8 %0, ptr noundef %1, ptr noundef nonnull %2) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca %struct.poly, align 8
  %5 = alloca %struct.poly, align 8
  %6 = tail call noundef zeroext i1 @_ZNK4poly7is_zeroEv(ptr noundef nonnull align 8 dereferenceable(24) %2)
  br i1 %6, label %.thread, label %7

.thread:                                          ; preds = %3
  tail call void @_ZN4polyC2ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1)
  br label %.critedge

7:                                                ; preds = %3
  call void @_ZN4polyC2ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(24) %2)
  invoke void @_ZNK4polyrmERKS_(ptr dead_on_unwind nonnull writable sret(%struct.poly) align 8 %5, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(24) %2)
          to label %8 unwind label %10

8:                                                ; preds = %7
  invoke void @_Z3gcd4polyS_(ptr dead_on_unwind writable sret(%struct.poly) align 8 %0, ptr noundef nonnull %4, ptr noundef nonnull %5)
          to label %9 unwind label %12

9:                                                ; preds = %8
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  br label %.critedge

.critedge:                                        ; preds = %.thread, %9
  ret void

10:                                               ; preds = %7
  %11 = landingpad { ptr, i32 }
          cleanup
  br label %14

12:                                               ; preds = %8
  %13 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  br label %14

14:                                               ; preds = %10, %12
  %.pn = phi { ptr, i32 } [ %13, %12 ], [ %11, %10 ]
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK4poly7is_zeroEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN4polyC2ERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK4polyrmERKS_(ptr dead_on_unwind noalias writable sret(%struct.poly) align 8, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

attributes #0 = { 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 #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 = { inlinehint 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 #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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InstCombinePass,JumpThreadingPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass