; LLVM IR from lzyrapx/Competitive-Programming :: HDUOJ/4093（FFT+容斥原理）.ll (ZmlRK7ComplexS1_)

; 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.Complex = type { x86_fp80, x86_fp80 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7ComplexC2Eee(ptr noundef nonnull align 16 dereferenceable(32), x86_fp80 noundef, x86_fp80 noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZmlRK7ComplexS1_(ptr dead_on_unwind noalias writable sret(%struct.Complex) align 16 %0, ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef nonnull align 16 dereferenceable(32) %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  store ptr %2, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.Complex, ptr %6, i32 0, i32 0
  %8 = load x86_fp80, ptr %7, align 16, !tbaa !9
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.Complex, ptr %9, i32 0, i32 0
  %11 = load x86_fp80, ptr %10, align 16, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.Complex, ptr %12, i32 0, i32 1
  %14 = load x86_fp80, ptr %13, align 16, !tbaa !12
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.Complex, ptr %15, i32 0, i32 1
  %17 = load x86_fp80, ptr %16, align 16, !tbaa !12
  %18 = fmul x86_fp80 %14, %17
  %19 = fneg x86_fp80 %18
  %20 = call x86_fp80 @llvm.fmuladd.f80(x86_fp80 %8, x86_fp80 %11, x86_fp80 %19)
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.Complex, ptr %21, i32 0, i32 0
  %23 = load x86_fp80, ptr %22, align 16, !tbaa !9
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.Complex, ptr %24, i32 0, i32 1
  %26 = load x86_fp80, ptr %25, align 16, !tbaa !12
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.Complex, ptr %27, i32 0, i32 1
  %29 = load x86_fp80, ptr %28, align 16, !tbaa !12
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.Complex, ptr %30, i32 0, i32 0
  %32 = load x86_fp80, ptr %31, align 16, !tbaa !9
  %33 = fmul x86_fp80 %29, %32
  %34 = call x86_fp80 @llvm.fmuladd.f80(x86_fp80 %23, x86_fp80 %26, x86_fp80 %33)
  call void @_ZN7ComplexC2Eee(ptr noundef nonnull align 16 dereferenceable(32) %0, x86_fp80 noundef %20, x86_fp80 noundef %34)
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare x86_fp80 @llvm.fmuladd.f80(x86_fp80, x86_fp80, x86_fp80) #2

attributes #0 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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, !11, i64 0}
!10 = !{!"_ZTS7Complex", !11, i64 0, !11, i64 16}
!11 = !{!"long double", !7, i64 0}
!12 = !{!10, !11, i64 16}


; 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.Complex = type { x86_fp80, x86_fp80 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7ComplexC2Eee(ptr noundef nonnull align 16 dereferenceable(32), x86_fp80 noundef, x86_fp80 noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZmlRK7ComplexS1_(ptr dead_on_unwind noalias nonnull writable sret(%struct.Complex) align 16 %0, ptr nocapture noundef nonnull readonly align 16 dereferenceable(32) %1, ptr nocapture noundef nonnull readonly align 16 dereferenceable(32) %2) local_unnamed_addr #0 {
  %4 = load x86_fp80, ptr %1, align 16, !tbaa !5
  %5 = load x86_fp80, ptr %2, align 16, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %1, i64 16
  %7 = load x86_fp80, ptr %6, align 16, !tbaa !10
  %8 = getelementptr inbounds i8, ptr %2, i64 16
  %9 = load x86_fp80, ptr %8, align 16, !tbaa !10
  %10 = fneg x86_fp80 %7
  %11 = fmul x86_fp80 %9, %10
  %12 = tail call x86_fp80 @llvm.fmuladd.f80(x86_fp80 %4, x86_fp80 %5, x86_fp80 %11)
  %13 = fmul x86_fp80 %5, %7
  %14 = tail call x86_fp80 @llvm.fmuladd.f80(x86_fp80 %4, x86_fp80 %9, x86_fp80 %13)
  tail call void @_ZN7ComplexC2Eee(ptr noundef nonnull align 16 dereferenceable(32) %0, x86_fp80 noundef %12, x86_fp80 noundef %14)
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare x86_fp80 @llvm.fmuladd.f80(x86_fp80, x86_fp80, x86_fp80) #1

attributes #0 = { 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 nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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, !7, i64 0}
!6 = !{!"_ZTS7Complex", !7, i64 0, !7, i64 16}
!7 = !{!"long double", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 16}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass