; LLVM IR from MRPT/mrpt :: 3rdparty/xspublic/xstypes (xsvector)

; 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.XsVector = type { ptr, i64, i64 }

; 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 @XsVector_assign(ptr noundef, i64 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @XsVector_multiplyScalar(ptr noundef %0, double noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca double, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store double %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %8 = load ptr, ptr %6, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.XsVector, ptr %9, i32 0, i32 1
  %11 = load i64, ptr %10, align 1, !tbaa !11
  call void @XsVector_assign(ptr noundef %8, i64 noundef %11, ptr noundef null)
  store i64 0, ptr %7, align 8, !tbaa !14
  br label %12

12:                                               ; preds = %32, %3
  %13 = load i64, ptr %7, align 8, !tbaa !14
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.XsVector, ptr %14, i32 0, i32 1
  %16 = load i64, ptr %15, align 1, !tbaa !11
  %17 = icmp ult i64 %13, %16
  br i1 %17, label %18, label %35

18:                                               ; preds = %12
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.XsVector, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 1, !tbaa !15
  %22 = load i64, ptr %7, align 8, !tbaa !14
  %23 = getelementptr inbounds double, ptr %21, i64 %22
  %24 = load double, ptr %23, align 8, !tbaa !9
  %25 = load double, ptr %5, align 8, !tbaa !9
  %26 = fmul double %24, %25
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.XsVector, ptr %27, i32 0, i32 0
  %29 = load ptr, ptr %28, align 1, !tbaa !15
  %30 = load i64, ptr %7, align 8, !tbaa !14
  %31 = getelementptr inbounds double, ptr %29, i64 %30
  store double %26, ptr %31, align 8, !tbaa !9
  br label %32

32:                                               ; preds = %18
  %33 = load i64, ptr %7, align 8, !tbaa !14
  %34 = add i64 %33, 1
  store i64 %34, ptr %7, align 8, !tbaa !14
  br label %12, !llvm.loop !16

35:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #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 = !{!"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}
!11 = !{!12, !13, i64 8}
!12 = !{!"XsVector", !6, i64 0, !13, i64 8, !13, i64 16}
!13 = !{!"long", !7, i64 0}
!14 = !{!13, !13, i64 0}
!15 = !{!12, !6, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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 @XsVector_assign(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @XsVector_multiplyScalar(ptr nocapture noundef readonly %0, double noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i64, ptr %4, align 1, !tbaa !5
  tail call void @XsVector_assign(ptr noundef %2, i64 noundef %5, ptr noundef null)
  %6 = load i64, ptr %4, align 1, !tbaa !5
  %.not = icmp eq i64 %6, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3
  %7 = load ptr, ptr %0, align 1, !tbaa !11
  %8 = load ptr, ptr %2, align 1, !tbaa !11
  %min.iters.check = icmp ult i64 %6, 4
  %9 = ptrtoint ptr %8 to i64
  %10 = ptrtoint ptr %7 to i64
  %11 = sub i64 %9, %10
  %diff.check = icmp ult i64 %11, 32
  %or.cond = select i1 %min.iters.check, i1 true, i1 %diff.check
  br i1 %or.cond, label %scalar.ph.preheader, label %vector.ph

vector.ph:                                        ; preds = %.lr.ph
  %n.vec = and i64 %6, -4
  %broadcast.splatinsert = insertelement <2 x double> poison, double %1, i64 0
  %broadcast.splat = shufflevector <2 x double> %broadcast.splatinsert, <2 x double> poison, <2 x i32> zeroinitializer
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %12 = getelementptr inbounds double, ptr %7, i64 %index
  %13 = getelementptr inbounds i8, ptr %12, i64 16
  %wide.load = load <2 x double>, ptr %12, align 8, !tbaa !12
  %wide.load10 = load <2 x double>, ptr %13, align 8, !tbaa !12
  %14 = fmul <2 x double> %wide.load, %broadcast.splat
  %15 = fmul <2 x double> %wide.load10, %broadcast.splat
  %16 = getelementptr inbounds double, ptr %8, i64 %index
  %17 = getelementptr inbounds i8, ptr %16, i64 16
  store <2 x double> %14, ptr %16, align 8, !tbaa !12
  store <2 x double> %15, ptr %17, align 8, !tbaa !12
  %index.next = add nuw i64 %index, 4
  %18 = icmp eq i64 %index.next, %n.vec
  br i1 %18, label %middle.block, label %vector.body, !llvm.loop !14

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %6, %n.vec
  br i1 %cmp.n, label %._crit_edge, label %scalar.ph.preheader

scalar.ph.preheader:                              ; preds = %middle.block, %.lr.ph
  %.09.ph = phi i64 [ 0, %.lr.ph ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %6, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %scalar.ph.prol.loopexit, label %scalar.ph.prol

scalar.ph.prol:                                   ; preds = %scalar.ph.preheader, %scalar.ph.prol
  %.09.prol = phi i64 [ %23, %scalar.ph.prol ], [ %.09.ph, %scalar.ph.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %scalar.ph.prol ], [ 0, %scalar.ph.preheader ]
  %19 = getelementptr inbounds double, ptr %7, i64 %.09.prol
  %20 = load double, ptr %19, align 8, !tbaa !12
  %21 = fmul double %20, %1
  %22 = getelementptr inbounds double, ptr %8, i64 %.09.prol
  store double %21, ptr %22, align 8, !tbaa !12
  %23 = add nuw i64 %.09.prol, 1
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %scalar.ph.prol.loopexit, label %scalar.ph.prol, !llvm.loop !18

scalar.ph.prol.loopexit:                          ; preds = %scalar.ph.prol, %scalar.ph.preheader
  %.09.unr = phi i64 [ %.09.ph, %scalar.ph.preheader ], [ %23, %scalar.ph.prol ]
  %24 = sub i64 %.09.ph, %6
  %25 = icmp ugt i64 %24, -4
  br i1 %25, label %._crit_edge, label %scalar.ph

scalar.ph:                                        ; preds = %scalar.ph.prol.loopexit, %scalar.ph
  %.09 = phi i64 [ %45, %scalar.ph ], [ %.09.unr, %scalar.ph.prol.loopexit ]
  %26 = getelementptr inbounds double, ptr %7, i64 %.09
  %27 = load double, ptr %26, align 8, !tbaa !12
  %28 = fmul double %27, %1
  %29 = getelementptr inbounds double, ptr %8, i64 %.09
  store double %28, ptr %29, align 8, !tbaa !12
  %30 = add nuw i64 %.09, 1
  %31 = getelementptr inbounds double, ptr %7, i64 %30
  %32 = load double, ptr %31, align 8, !tbaa !12
  %33 = fmul double %32, %1
  %34 = getelementptr inbounds double, ptr %8, i64 %30
  store double %33, ptr %34, align 8, !tbaa !12
  %35 = add nuw i64 %.09, 2
  %36 = getelementptr inbounds double, ptr %7, i64 %35
  %37 = load double, ptr %36, align 8, !tbaa !12
  %38 = fmul double %37, %1
  %39 = getelementptr inbounds double, ptr %8, i64 %35
  store double %38, ptr %39, align 8, !tbaa !12
  %40 = add nuw i64 %.09, 3
  %41 = getelementptr inbounds double, ptr %7, i64 %40
  %42 = load double, ptr %41, align 8, !tbaa !12
  %43 = fmul double %42, %1
  %44 = getelementptr inbounds double, ptr %8, i64 %40
  store double %43, ptr %44, align 8, !tbaa !12
  %45 = add nuw i64 %.09, 4
  %exitcond.not.3 = icmp eq i64 %45, %6
  br i1 %exitcond.not.3, label %._crit_edge, label %scalar.ph, !llvm.loop !20

._crit_edge:                                      ; preds = %scalar.ph.prol.loopexit, %scalar.ph, %middle.block, %3
  ret void
}

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 = !{!6, !10, i64 8}
!6 = !{!"XsVector", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"double", !8, i64 0}
!14 = distinct !{!14, !15, !16, !17}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!"llvm.loop.isvectorized", i32 1}
!17 = !{!"llvm.loop.unroll.runtime.disable"}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.unroll.disable"}
!20 = distinct !{!20, !15, !16}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass