; LLVM IR from Dev-XYS/Algorithms :: Complex-Number.ll (ZdvRK7complexS1_)

; 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 { double, double }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7complexC2Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: mustprogress uwtable
define dso_local { double, double } @_ZdvRK7complexS1_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) #2 {
  %3 = alloca %struct.complex, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, 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 double, ptr %7, align 8, !tbaa !9
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.complex, ptr %9, i32 0, i32 0
  %11 = load double, ptr %10, align 8, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.complex, ptr %12, i32 0, i32 1
  %14 = load double, ptr %13, align 8, !tbaa !12
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.complex, ptr %15, i32 0, i32 1
  %17 = load double, ptr %16, align 8, !tbaa !12
  %18 = fmul double %14, %17
  %19 = call double @llvm.fmuladd.f64(double %8, double %11, double %18)
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.complex, ptr %20, i32 0, i32 0
  %22 = load double, ptr %21, align 8, !tbaa !9
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.complex, ptr %23, i32 0, i32 0
  %25 = load double, ptr %24, align 8, !tbaa !9
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.complex, ptr %26, i32 0, i32 1
  %28 = load double, ptr %27, align 8, !tbaa !12
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.complex, ptr %29, i32 0, i32 1
  %31 = load double, ptr %30, align 8, !tbaa !12
  %32 = fmul double %28, %31
  %33 = call double @llvm.fmuladd.f64(double %22, double %25, double %32)
  %34 = fdiv double %19, %33
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.complex, ptr %35, i32 0, i32 1
  %37 = load double, ptr %36, align 8, !tbaa !12
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.complex, ptr %38, i32 0, i32 0
  %40 = load double, ptr %39, align 8, !tbaa !9
  %41 = load ptr, ptr %4, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.complex, ptr %41, i32 0, i32 0
  %43 = load double, ptr %42, align 8, !tbaa !9
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.complex, ptr %44, i32 0, i32 1
  %46 = load double, ptr %45, align 8, !tbaa !12
  %47 = fmul double %43, %46
  %48 = fneg double %47
  %49 = call double @llvm.fmuladd.f64(double %37, double %40, double %48)
  %50 = load ptr, ptr %5, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.complex, ptr %50, i32 0, i32 0
  %52 = load double, ptr %51, align 8, !tbaa !9
  %53 = load ptr, ptr %5, align 8, !tbaa !5
  %54 = getelementptr inbounds %struct.complex, ptr %53, i32 0, i32 0
  %55 = load double, ptr %54, align 8, !tbaa !9
  %56 = load ptr, ptr %5, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.complex, ptr %56, i32 0, i32 1
  %58 = load double, ptr %57, align 8, !tbaa !12
  %59 = load ptr, ptr %5, align 8, !tbaa !5
  %60 = getelementptr inbounds %struct.complex, ptr %59, i32 0, i32 1
  %61 = load double, ptr %60, align 8, !tbaa !12
  %62 = fmul double %58, %61
  %63 = call double @llvm.fmuladd.f64(double %52, double %55, double %62)
  %64 = fdiv double %49, %63
  call void @_ZN7complexC2Edd(ptr noundef nonnull align 8 dereferenceable(16) %3, double noundef %34, double noundef %64)
  %65 = load { double, double }, ptr %3, align 8
  ret { double, double } %65
}

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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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" }

!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 8}
!11 = !{!"double", !7, i64 0}
!12 = !{!10, !11, i64 8}


; 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 { double, double }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7complexC2Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local { double, double } @_ZdvRK7complexS1_(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %1) local_unnamed_addr #0 {
  %3 = alloca %struct.complex, align 8
  %4 = load double, ptr %0, align 8, !tbaa !5
  %5 = load double, ptr %1, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load double, ptr %6, align 8, !tbaa !10
  %8 = getelementptr inbounds i8, ptr %1, i64 8
  %9 = load double, ptr %8, align 8, !tbaa !10
  %10 = insertelement <2 x double> poison, double %9, i64 0
  %11 = shufflevector <2 x double> %10, <2 x double> poison, <2 x i32> zeroinitializer
  %12 = insertelement <2 x double> poison, double %7, i64 0
  %13 = insertelement <2 x double> %12, double %9, i64 1
  %14 = fmul <2 x double> %11, %13
  %15 = insertelement <2 x double> poison, double %5, i64 0
  %16 = shufflevector <2 x double> %15, <2 x double> poison, <2 x i32> zeroinitializer
  %17 = insertelement <2 x double> poison, double %4, i64 0
  %18 = insertelement <2 x double> %17, double %5, i64 1
  %19 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %16, <2 x double> %18, <2 x double> %14)
  %20 = extractelement <2 x double> %19, i64 0
  %21 = extractelement <2 x double> %19, i64 1
  %22 = fdiv double %20, %21
  %23 = fneg double %4
  %24 = fmul double %9, %23
  %25 = tail call double @llvm.fmuladd.f64(double %7, double %5, double %24)
  %26 = fdiv double %25, %21
  call void @_ZN7complexC2Edd(ptr noundef nonnull align 8 dereferenceable(16) %3, double noundef %22, double noundef %26)
  %.fca.0.load = load double, ptr %3, align 8
  %.fca.0.insert = insertvalue { double, double } poison, double %.fca.0.load, 0
  %.fca.1.gep = getelementptr inbounds i8, ptr %3, i64 8
  %.fca.1.load = load double, ptr %.fca.1.gep, align 8
  %.fca.1.insert = insertvalue { double, double } %.fca.0.insert, double %.fca.1.load, 1
  ret { double, double } %.fca.1.insert
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare <2 x double> @llvm.fmuladd.v2f64(<2 x double>, <2 x double>, <2 x double>) #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 nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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, !7, i64 0}
!6 = !{!"_ZTS7complex", !7, i64 0, !7, i64 8}
!7 = !{!"double", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 8}


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