; LLVM IR from sp-nitech/SPTK :: third_party/REAPER/core/float_matrix.ll (ZN4sptk6reaper11FloatMatrixC2ERKS1_)

; 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"

%"class.sptk::reaper::FloatMatrix" = type { ptr, i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4sptk6reaper11FloatMatrixC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) unnamed_addr #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @_ZN4sptk6reaper11FloatMatrix5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %6)
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds %"class.sptk::reaper::FloatMatrix", ptr %7, i32 0, i32 1
  %9 = load i32, ptr %8, align 8, !tbaa !9
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %"class.sptk::reaper::FloatMatrix", ptr %10, i32 0, i32 2
  %12 = load i32, ptr %11, align 4, !tbaa !12
  call void @_ZN4sptk6reaper11FloatMatrix6resizeEjj(ptr noundef nonnull align 8 dereferenceable(16) %6, i32 noundef %9, i32 noundef %12)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !13
  br label %13

13:                                               ; preds = %35, %2
  %14 = load i32, ptr %5, align 4, !tbaa !13
  %15 = getelementptr inbounds %"class.sptk::reaper::FloatMatrix", ptr %6, i32 0, i32 1
  %16 = load i32, ptr %15, align 8, !tbaa !9
  %17 = getelementptr inbounds %"class.sptk::reaper::FloatMatrix", ptr %6, i32 0, i32 2
  %18 = load i32, ptr %17, align 4, !tbaa !12
  %19 = mul i32 %16, %18
  %20 = icmp ult i32 %14, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %38

22:                                               ; preds = %13
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %"class.sptk::reaper::FloatMatrix", ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !14
  %26 = load i32, ptr %5, align 4, !tbaa !13
  %27 = zext i32 %26 to i64
  %28 = getelementptr inbounds float, ptr %25, i64 %27
  %29 = load float, ptr %28, align 4, !tbaa !15
  %30 = getelementptr inbounds %"class.sptk::reaper::FloatMatrix", ptr %6, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !14
  %32 = load i32, ptr %5, align 4, !tbaa !13
  %33 = zext i32 %32 to i64
  %34 = getelementptr inbounds float, ptr %31, i64 %33
  store float %29, ptr %34, align 4, !tbaa !15
  br label %35

35:                                               ; preds = %22
  %36 = load i32, ptr %5, align 4, !tbaa !13
  %37 = add i32 %36, 1
  store i32 %37, ptr %5, align 4, !tbaa !13
  br label %13, !llvm.loop !17

38:                                               ; preds = %21
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4sptk6reaper11FloatMatrix5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4sptk6reaper11FloatMatrix6resizeEjj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef, i32 noundef) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { 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" }
attributes #1 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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++ TBAA"}
!9 = !{!10, !11, i64 8}
!10 = !{!"_ZTSN4sptk6reaper11FloatMatrixE", !6, i64 0, !11, i64 8, !11, i64 12}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 12}
!13 = !{!11, !11, i64 0}
!14 = !{!10, !6, i64 0}
!15 = !{!16, !16, i64 0}
!16 = !{!"float", !7, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"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: mustprogress uwtable
define dso_local void @_ZN4sptk6reaper11FloatMatrixC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %1) unnamed_addr #0 align 2 {
  tail call void @_ZN4sptk6reaper11FloatMatrix5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %3 = getelementptr inbounds i8, ptr %1, i64 8
  %4 = load i32, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 12
  %6 = load i32, ptr %5, align 4, !tbaa !11
  tail call void @_ZN4sptk6reaper11FloatMatrix6resizeEjj(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %4, i32 noundef %6)
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  %8 = load i32, ptr %7, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %0, i64 12
  %10 = load i32, ptr %9, align 4, !tbaa !11
  %11 = mul i32 %10, %8
  %.not = icmp eq i32 %11, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %12 = load ptr, ptr %1, align 8, !tbaa !12
  %13 = load ptr, ptr %0, align 8, !tbaa !12
  %wide.trip.count = zext i32 %11 to i64
  %min.iters.check = icmp ult i32 %11, 8
  %14 = ptrtoint ptr %13 to i64
  %15 = ptrtoint ptr %12 to i64
  %16 = sub i64 %14, %15
  %diff.check = icmp ult i64 %16, 32
  %or.cond = select i1 %min.iters.check, i1 true, i1 %diff.check
  br i1 %or.cond, label %scalar.ph.preheader, label %vector.ph

scalar.ph.preheader:                              ; preds = %middle.block, %.lr.ph
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %wide.trip.count, 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
  %indvars.iv.prol = phi i64 [ %indvars.iv.next.prol, %scalar.ph.prol ], [ %indvars.iv.ph, %scalar.ph.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %scalar.ph.prol ], [ 0, %scalar.ph.preheader ]
  %17 = getelementptr inbounds float, ptr %12, i64 %indvars.iv.prol
  %18 = load float, ptr %17, align 4, !tbaa !13
  %19 = getelementptr inbounds float, ptr %13, i64 %indvars.iv.prol
  store float %18, ptr %19, align 4, !tbaa !13
  %indvars.iv.next.prol = add nuw nsw i64 %indvars.iv.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 !15

scalar.ph.prol.loopexit:                          ; preds = %scalar.ph.prol, %scalar.ph.preheader
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %scalar.ph.preheader ], [ %indvars.iv.next.prol, %scalar.ph.prol ]
  %20 = sub nsw i64 %indvars.iv.ph, %wide.trip.count
  %21 = icmp ugt i64 %20, -4
  br i1 %21, label %._crit_edge, label %scalar.ph

vector.ph:                                        ; preds = %.lr.ph
  %n.vec = and i64 %wide.trip.count, 4294967288
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %22 = getelementptr inbounds float, ptr %12, i64 %index
  %23 = getelementptr inbounds i8, ptr %22, i64 16
  %wide.load = load <4 x float>, ptr %22, align 4, !tbaa !13
  %wide.load9 = load <4 x float>, ptr %23, align 4, !tbaa !13
  %24 = getelementptr inbounds float, ptr %13, i64 %index
  %25 = getelementptr inbounds i8, ptr %24, i64 16
  store <4 x float> %wide.load, ptr %24, align 4, !tbaa !13
  store <4 x float> %wide.load9, ptr %25, align 4, !tbaa !13
  %index.next = add nuw i64 %index, 8
  %26 = icmp eq i64 %index.next, %n.vec
  br i1 %26, label %middle.block, label %vector.body, !llvm.loop !17

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

._crit_edge:                                      ; preds = %scalar.ph.prol.loopexit, %scalar.ph, %middle.block, %2
  ret void

scalar.ph:                                        ; preds = %scalar.ph.prol.loopexit, %scalar.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %scalar.ph ], [ %indvars.iv.unr, %scalar.ph.prol.loopexit ]
  %27 = getelementptr inbounds float, ptr %12, i64 %indvars.iv
  %28 = load float, ptr %27, align 4, !tbaa !13
  %29 = getelementptr inbounds float, ptr %13, i64 %indvars.iv
  store float %28, ptr %29, align 4, !tbaa !13
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %30 = getelementptr inbounds float, ptr %12, i64 %indvars.iv.next
  %31 = load float, ptr %30, align 4, !tbaa !13
  %32 = getelementptr inbounds float, ptr %13, i64 %indvars.iv.next
  store float %31, ptr %32, align 4, !tbaa !13
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %33 = getelementptr inbounds float, ptr %12, i64 %indvars.iv.next.1
  %34 = load float, ptr %33, align 4, !tbaa !13
  %35 = getelementptr inbounds float, ptr %13, i64 %indvars.iv.next.1
  store float %34, ptr %35, align 4, !tbaa !13
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %36 = getelementptr inbounds float, ptr %12, i64 %indvars.iv.next.2
  %37 = load float, ptr %36, align 4, !tbaa !13
  %38 = getelementptr inbounds float, ptr %13, i64 %indvars.iv.next.2
  store float %37, ptr %38, align 4, !tbaa !13
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, %wide.trip.count
  br i1 %exitcond.not.3, label %._crit_edge, label %scalar.ph, !llvm.loop !21
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4sptk6reaper11FloatMatrix5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4sptk6reaper11FloatMatrix6resizeEjj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

attributes #0 = { 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" }
attributes #1 = { 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" }

!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 = !{!"_ZTSN4sptk6reaper11FloatMatrixE", !7, i64 0, !10, i64 8, !10, i64 12}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 12}
!12 = !{!6, !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"float", !8, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.unroll.disable"}
!17 = distinct !{!17, !18, !19, !20}
!18 = !{!"llvm.loop.mustprogress"}
!19 = !{!"llvm.loop.isvectorized", i32 1}
!20 = !{!"llvm.loop.unroll.runtime.disable"}
!21 = distinct !{!21, !18, !19}


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