; LLVM IR from tfhe/spqlios-arithmetic :: spqlios/reim4 (reim4_arithmetic_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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; 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
declare dso_local void @reim4_zero(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @reim4_add_mul(ptr noundef, ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @reim4_vec_mat2cols_product_ref(i64 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #1 {
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i64, align 8
  store i64 %0, ptr %5, align 8, !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
  %14 = load ptr, ptr %6, align 8, !tbaa !9
  call void @reim4_zero(ptr noundef %14)
  %15 = load ptr, ptr %6, align 8, !tbaa !9
  %16 = getelementptr inbounds double, ptr %15, i64 8
  call void @reim4_zero(ptr noundef %16)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %17 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %17, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #2
  %18 = load ptr, ptr %6, align 8, !tbaa !9
  %19 = getelementptr inbounds double, ptr %18, i64 8
  store ptr %19, ptr %10, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #2
  store i64 0, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #2
  store i64 0, ptr %12, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %43, %4
  %21 = load i64, ptr %11, align 8, !tbaa !5
  %22 = load i64, ptr %5, align 8, !tbaa !5
  %23 = icmp ult i64 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #2
  br label %48

25:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #2
  %26 = load i64, ptr %12, align 8, !tbaa !5
  %27 = shl i64 %26, 1
  store i64 %27, ptr %13, align 8, !tbaa !5
  %28 = load ptr, ptr %9, align 8, !tbaa !9
  %29 = load ptr, ptr %7, align 8, !tbaa !9
  %30 = load i64, ptr %12, align 8, !tbaa !5
  %31 = getelementptr inbounds double, ptr %29, i64 %30
  %32 = load ptr, ptr %8, align 8, !tbaa !9
  %33 = load i64, ptr %13, align 8, !tbaa !5
  %34 = getelementptr inbounds double, ptr %32, i64 %33
  call void @reim4_add_mul(ptr noundef %28, ptr noundef %31, ptr noundef %34)
  %35 = load ptr, ptr %10, align 8, !tbaa !9
  %36 = load ptr, ptr %7, align 8, !tbaa !9
  %37 = load i64, ptr %12, align 8, !tbaa !5
  %38 = getelementptr inbounds double, ptr %36, i64 %37
  %39 = load ptr, ptr %8, align 8, !tbaa !9
  %40 = load i64, ptr %13, align 8, !tbaa !5
  %41 = getelementptr inbounds double, ptr %39, i64 %40
  %42 = getelementptr inbounds double, ptr %41, i64 8
  call void @reim4_add_mul(ptr noundef %35, ptr noundef %38, ptr noundef %42)
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #2
  br label %43

43:                                               ; preds = %25
  %44 = load i64, ptr %11, align 8, !tbaa !5
  %45 = add i64 %44, 1
  store i64 %45, ptr %11, align 8, !tbaa !5
  %46 = load i64, ptr %12, align 8, !tbaa !5
  %47 = add i64 %46, 8
  store i64 %47, ptr %12, align 8, !tbaa !5
  br label %20, !llvm.loop !11

48:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"long", !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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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: nounwind uwtable
declare dso_local void @reim4_zero(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @reim4_add_mul(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @reim4_vec_mat2cols_product_ref(i64 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  tail call void @reim4_zero(ptr noundef %1)
  %5 = getelementptr inbounds i8, ptr %1, i64 64
  tail call void @reim4_zero(ptr noundef nonnull %5)
  %.not = icmp eq i64 %0, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %4
  ret void

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.020 = phi i64 [ %9, %.lr.ph ], [ 0, %4 ]
  %.01819 = phi i64 [ %10, %.lr.ph ], [ 0, %4 ]
  %6 = getelementptr inbounds double, ptr %2, i64 %.01819
  %.idx = shl i64 %.01819, 4
  %7 = getelementptr inbounds i8, ptr %3, i64 %.idx
  tail call void @reim4_add_mul(ptr noundef %1, ptr noundef %6, ptr noundef %7)
  %8 = getelementptr inbounds i8, ptr %7, i64 64
  tail call void @reim4_add_mul(ptr noundef nonnull %5, ptr noundef %6, ptr noundef nonnull %8)
  %9 = add nuw i64 %.020, 1
  %10 = add i64 %.01819, 8
  %exitcond.not = icmp eq i64 %9, %0
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

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" }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass