; LLVM IR from tfhe/spqlios-arithmetic :: spqlios/reim (reim_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"

%struct.reim_addmul_precomp = type { ptr, i64 }

@reim_fftvec_addmul_simple.p = external hidden global [31 x ptr], align 16

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @log2m(i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @reim_fftvec_addmul_simple(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #2 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = call i32 @log2m(i32 noundef %10)
  %12 = zext i32 %11 to i64
  %13 = getelementptr inbounds ptr, ptr @reim_fftvec_addmul_simple.p, i64 %12
  store ptr %13, ptr %9, align 8, !tbaa !9
  %14 = load ptr, ptr %9, align 8, !tbaa !9
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  %16 = icmp ne ptr %15, null
  br i1 %16, label %21, label %17

17:                                               ; preds = %4
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = call ptr @new_reim_fftvec_addmul_precomp(i32 noundef %18)
  %20 = load ptr, ptr %9, align 8, !tbaa !9
  store ptr %19, ptr %20, align 8, !tbaa !9
  br label %21

21:                                               ; preds = %17, %4
  %22 = load ptr, ptr %9, align 8, !tbaa !9
  %23 = load ptr, ptr %22, align 8, !tbaa !9
  %24 = getelementptr inbounds %struct.reim_addmul_precomp, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !11
  %26 = load ptr, ptr %9, align 8, !tbaa !9
  %27 = load ptr, ptr %26, align 8, !tbaa !9
  %28 = load ptr, ptr %6, align 8, !tbaa !9
  %29 = load ptr, ptr %7, align 8, !tbaa !9
  %30 = load ptr, ptr %8, align 8, !tbaa !9
  call void %25(ptr noundef %27, ptr noundef %28, ptr noundef %29, ptr noundef %30)
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  ret void
}

declare ptr @new_reim_fftvec_addmul_precomp(i32 noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"reim_addmul_precomp", !10, i64 0, !13, i64 8}
!13 = !{!"long", !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"

@reim_fftvec_addmul_simple.p = external hidden local_unnamed_addr global [31 x ptr], align 16

declare i32 @log2m(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @reim_fftvec_addmul_simple(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #1 {
  %5 = tail call i32 @log2m(i32 noundef %0) #2
  %6 = zext i32 %5 to i64
  %7 = getelementptr inbounds ptr, ptr @reim_fftvec_addmul_simple.p, i64 %6
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %9, label %11

9:                                                ; preds = %4
  %10 = tail call ptr @new_reim_fftvec_addmul_precomp(i32 noundef %0) #2
  store ptr %10, ptr %7, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %9, %4
  %12 = phi ptr [ %10, %9 ], [ %8, %4 ]
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  tail call void %13(ptr noundef nonnull %12, ptr noundef %1, ptr noundef %2, ptr noundef %3) #2
  ret void
}

declare ptr @new_reim_fftvec_addmul_precomp(i32 noundef) local_unnamed_addr #0

attributes #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 = { 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 #2 = { 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, !6, i64 0}
!10 = !{!"reim_addmul_precomp", !6, i64 0, !11, i64 8}
!11 = !{!"long", !7, i64 0}


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