; LLVM IR from tfhe/spqlios-arithmetic :: spqlios/cplx (cplx_fft_ref)

; 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"

; Function Attrs: nounwind uwtable
define dso_local void @ctwiddle(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca double, align 8
  %8 = alloca double, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = getelementptr inbounds double, ptr %9, i64 0
  %11 = load double, ptr %10, align 8, !tbaa !9
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds double, ptr %12, i64 0
  %14 = load double, ptr %13, align 8, !tbaa !9
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = getelementptr inbounds double, ptr %15, i64 1
  %17 = load double, ptr %16, align 8, !tbaa !9
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds double, ptr %18, i64 1
  %20 = load double, ptr %19, align 8, !tbaa !9
  %21 = fmul double %17, %20
  %22 = fneg double %21
  %23 = call double @llvm.fmuladd.f64(double %11, double %14, double %22)
  store double %23, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds double, ptr %24, i64 0
  %26 = load double, ptr %25, align 8, !tbaa !9
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds double, ptr %27, i64 1
  %29 = load double, ptr %28, align 8, !tbaa !9
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = getelementptr inbounds double, ptr %30, i64 1
  %32 = load double, ptr %31, align 8, !tbaa !9
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = getelementptr inbounds double, ptr %33, i64 0
  %35 = load double, ptr %34, align 8, !tbaa !9
  %36 = fmul double %32, %35
  %37 = call double @llvm.fmuladd.f64(double %26, double %29, double %36)
  store double %37, ptr %8, align 8, !tbaa !9
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = getelementptr inbounds double, ptr %38, i64 0
  %40 = load double, ptr %39, align 8, !tbaa !9
  %41 = load double, ptr %7, align 8, !tbaa !9
  %42 = fsub double %40, %41
  %43 = load ptr, ptr %5, align 8, !tbaa !5
  %44 = getelementptr inbounds double, ptr %43, i64 0
  store double %42, ptr %44, align 8, !tbaa !9
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = getelementptr inbounds double, ptr %45, i64 1
  %47 = load double, ptr %46, align 8, !tbaa !9
  %48 = load double, ptr %8, align 8, !tbaa !9
  %49 = fsub double %47, %48
  %50 = load ptr, ptr %5, align 8, !tbaa !5
  %51 = getelementptr inbounds double, ptr %50, i64 1
  store double %49, ptr %51, align 8, !tbaa !9
  %52 = load double, ptr %7, align 8, !tbaa !9
  %53 = load ptr, ptr %4, align 8, !tbaa !5
  %54 = getelementptr inbounds double, ptr %53, i64 0
  %55 = load double, ptr %54, align 8, !tbaa !9
  %56 = fadd double %55, %52
  store double %56, ptr %54, align 8, !tbaa !9
  %57 = load double, ptr %8, align 8, !tbaa !9
  %58 = load ptr, ptr %4, align 8, !tbaa !5
  %59 = getelementptr inbounds double, ptr %58, i64 1
  %60 = load double, ptr %59, align 8, !tbaa !9
  %61 = fadd double %60, %57
  store double %61, ptr %59, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @ctwiddle(ptr nocapture noundef %0, ptr nocapture noundef %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = load double, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %2, i64 8
  %6 = load double, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %1, i64 8
  %8 = fneg double %6
  %9 = load double, ptr %0, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load <2 x double>, ptr %1, align 8, !tbaa !5
  %12 = insertelement <2 x double> poison, double %6, i64 0
  %13 = insertelement <2 x double> %12, double %8, i64 1
  %14 = fmul <2 x double> %11, %13
  %15 = shufflevector <2 x double> %14, <2 x double> poison, <2 x i32> <i32 1, i32 0>
  %16 = insertelement <2 x double> poison, double %4, i64 0
  %17 = shufflevector <2 x double> %16, <2 x double> poison, <2 x i32> zeroinitializer
  %18 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %17, <2 x double> %11, <2 x double> %15)
  %19 = extractelement <2 x double> %18, i64 0
  %20 = fsub double %9, %19
  store double %20, ptr %1, align 8, !tbaa !5
  %21 = load double, ptr %10, align 8, !tbaa !5
  %22 = extractelement <2 x double> %18, i64 1
  %23 = fsub double %21, %22
  store double %23, ptr %7, align 8, !tbaa !5
  %24 = load <2 x double>, ptr %0, align 8, !tbaa !5
  %25 = fadd <2 x double> %18, %24
  store <2 x double> %25, ptr %0, align 8, !tbaa !5
  ret void
}

; 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>) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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) }

!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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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