; LLVM IR from zchrissirhcz/pixel :: legacy/matcalc (matrix_add_subtract)

; 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
define dso_local void @matrix_subtract_f32_asimd(ptr noundef %0, ptr noundef %1, ptr noundef %2, i64 noundef %3, i64 noundef %4) #1 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i64, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store i64 %3, ptr %9, align 8, !tbaa !9
  store i64 %4, ptr %10, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #2
  %14 = load i64, ptr %9, align 8, !tbaa !9
  %15 = load i64, ptr %10, align 8, !tbaa !9
  %16 = mul i64 %14, %15
  store i64 %16, ptr %11, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #2
  store i64 0, ptr %12, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #2
  %17 = load i64, ptr %12, align 8, !tbaa !9
  store i64 %17, ptr %13, align 8, !tbaa !9
  br label %18

18:                                               ; preds = %36, %5
  %19 = load i64, ptr %13, align 8, !tbaa !9
  %20 = load i64, ptr %11, align 8, !tbaa !9
  %21 = icmp ult i64 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #2
  br label %39

23:                                               ; preds = %18
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = load float, ptr %24, align 4, !tbaa !11
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  %27 = load float, ptr %26, align 4, !tbaa !11
  %28 = fsub float %25, %27
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  store float %28, ptr %29, align 4, !tbaa !11
  %30 = load ptr, ptr %8, align 8, !tbaa !5
  %31 = getelementptr inbounds float, ptr %30, i32 1
  store ptr %31, ptr %8, align 8, !tbaa !5
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = getelementptr inbounds float, ptr %32, i32 1
  store ptr %33, ptr %6, align 8, !tbaa !5
  %34 = load ptr, ptr %7, align 8, !tbaa !5
  %35 = getelementptr inbounds float, ptr %34, i32 1
  store ptr %35, ptr %7, align 8, !tbaa !5
  br label %36

36:                                               ; preds = %23
  %37 = load i64, ptr %13, align 8, !tbaa !9
  %38 = add i64 %37, 1
  store i64 %38, ptr %13, align 8, !tbaa !9
  br label %18, !llvm.loop !13

39:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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: nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @matrix_subtract_f32_asimd(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef writeonly %2, i64 noundef %3, i64 noundef %4) local_unnamed_addr #0 {
  %6 = ptrtoint ptr %1 to i64
  %7 = ptrtoint ptr %0 to i64
  %8 = ptrtoint ptr %2 to i64
  %9 = mul i64 %4, %3
  %.not = icmp eq i64 %9, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %5
  %min.iters.check = icmp ult i64 %9, 8
  br i1 %min.iters.check, label %.lr.ph.preheader34, label %vector.memcheck

.lr.ph.preheader34:                               ; preds = %middle.block, %vector.memcheck, %.lr.ph.preheader
  %.017.ph = phi i64 [ 0, %vector.memcheck ], [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  %.01116.ph = phi ptr [ %0, %vector.memcheck ], [ %0, %.lr.ph.preheader ], [ %ind.end, %middle.block ]
  %.01215.ph = phi ptr [ %1, %vector.memcheck ], [ %1, %.lr.ph.preheader ], [ %ind.end20, %middle.block ]
  %.01314.ph = phi ptr [ %2, %vector.memcheck ], [ %2, %.lr.ph.preheader ], [ %ind.end22, %middle.block ]
  %xtraiter = and i64 %9, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol

.lr.ph.prol:                                      ; preds = %.lr.ph.preheader34, %.lr.ph.prol
  %.017.prol = phi i64 [ %16, %.lr.ph.prol ], [ %.017.ph, %.lr.ph.preheader34 ]
  %.01116.prol = phi ptr [ %14, %.lr.ph.prol ], [ %.01116.ph, %.lr.ph.preheader34 ]
  %.01215.prol = phi ptr [ %15, %.lr.ph.prol ], [ %.01215.ph, %.lr.ph.preheader34 ]
  %.01314.prol = phi ptr [ %13, %.lr.ph.prol ], [ %.01314.ph, %.lr.ph.preheader34 ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph.prol ], [ 0, %.lr.ph.preheader34 ]
  %10 = load float, ptr %.01116.prol, align 4, !tbaa !5
  %11 = load float, ptr %.01215.prol, align 4, !tbaa !5
  %12 = fsub float %10, %11
  store float %12, ptr %.01314.prol, align 4, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %.01314.prol, i64 4
  %14 = getelementptr inbounds i8, ptr %.01116.prol, i64 4
  %15 = getelementptr inbounds i8, ptr %.01215.prol, i64 4
  %16 = add nuw i64 %.017.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 %.lr.ph.prol.loopexit, label %.lr.ph.prol, !llvm.loop !9

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader34
  %.017.unr = phi i64 [ %.017.ph, %.lr.ph.preheader34 ], [ %16, %.lr.ph.prol ]
  %.01116.unr = phi ptr [ %.01116.ph, %.lr.ph.preheader34 ], [ %14, %.lr.ph.prol ]
  %.01215.unr = phi ptr [ %.01215.ph, %.lr.ph.preheader34 ], [ %15, %.lr.ph.prol ]
  %.01314.unr = phi ptr [ %.01314.ph, %.lr.ph.preheader34 ], [ %13, %.lr.ph.prol ]
  %17 = sub i64 %.017.ph, %9
  %18 = icmp ugt i64 %17, -4
  br i1 %18, label %._crit_edge, label %.lr.ph

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %19 = sub i64 %8, %7
  %diff.check = icmp ult i64 %19, 32
  %20 = sub i64 %8, %6
  %diff.check18 = icmp ult i64 %20, 32
  %conflict.rdx = or i1 %diff.check, %diff.check18
  br i1 %conflict.rdx, label %.lr.ph.preheader34, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %9, -8
  %21 = shl i64 %n.vec, 2
  %ind.end = getelementptr i8, ptr %0, i64 %21
  %22 = shl i64 %n.vec, 2
  %ind.end20 = getelementptr i8, ptr %1, i64 %22
  %23 = shl i64 %n.vec, 2
  %ind.end22 = getelementptr i8, ptr %2, i64 %23
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %offset.idx = shl i64 %index, 2
  %next.gep = getelementptr i8, ptr %0, i64 %offset.idx
  %offset.idx25 = shl i64 %index, 2
  %next.gep26 = getelementptr i8, ptr %1, i64 %offset.idx25
  %offset.idx28 = shl i64 %index, 2
  %next.gep29 = getelementptr i8, ptr %2, i64 %offset.idx28
  %24 = getelementptr i8, ptr %next.gep, i64 16
  %wide.load = load <4 x float>, ptr %next.gep, align 4, !tbaa !5
  %wide.load31 = load <4 x float>, ptr %24, align 4, !tbaa !5
  %25 = getelementptr i8, ptr %next.gep26, i64 16
  %wide.load32 = load <4 x float>, ptr %next.gep26, align 4, !tbaa !5
  %wide.load33 = load <4 x float>, ptr %25, align 4, !tbaa !5
  %26 = fsub <4 x float> %wide.load, %wide.load32
  %27 = fsub <4 x float> %wide.load31, %wide.load33
  %28 = getelementptr i8, ptr %next.gep29, i64 16
  store <4 x float> %26, ptr %next.gep29, align 4, !tbaa !5
  store <4 x float> %27, ptr %28, align 4, !tbaa !5
  %index.next = add nuw i64 %index, 8
  %29 = icmp eq i64 %index.next, %n.vec
  br i1 %29, label %middle.block, label %vector.body, !llvm.loop !11

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %9, %n.vec
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader34

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %5
  ret void

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %.017 = phi i64 [ %54, %.lr.ph ], [ %.017.unr, %.lr.ph.prol.loopexit ]
  %.01116 = phi ptr [ %52, %.lr.ph ], [ %.01116.unr, %.lr.ph.prol.loopexit ]
  %.01215 = phi ptr [ %53, %.lr.ph ], [ %.01215.unr, %.lr.ph.prol.loopexit ]
  %.01314 = phi ptr [ %51, %.lr.ph ], [ %.01314.unr, %.lr.ph.prol.loopexit ]
  %30 = load float, ptr %.01116, align 4, !tbaa !5
  %31 = load float, ptr %.01215, align 4, !tbaa !5
  %32 = fsub float %30, %31
  store float %32, ptr %.01314, align 4, !tbaa !5
  %33 = getelementptr inbounds i8, ptr %.01314, i64 4
  %34 = getelementptr inbounds i8, ptr %.01116, i64 4
  %35 = getelementptr inbounds i8, ptr %.01215, i64 4
  %36 = load float, ptr %34, align 4, !tbaa !5
  %37 = load float, ptr %35, align 4, !tbaa !5
  %38 = fsub float %36, %37
  store float %38, ptr %33, align 4, !tbaa !5
  %39 = getelementptr inbounds i8, ptr %.01314, i64 8
  %40 = getelementptr inbounds i8, ptr %.01116, i64 8
  %41 = getelementptr inbounds i8, ptr %.01215, i64 8
  %42 = load float, ptr %40, align 4, !tbaa !5
  %43 = load float, ptr %41, align 4, !tbaa !5
  %44 = fsub float %42, %43
  store float %44, ptr %39, align 4, !tbaa !5
  %45 = getelementptr inbounds i8, ptr %.01314, i64 12
  %46 = getelementptr inbounds i8, ptr %.01116, i64 12
  %47 = getelementptr inbounds i8, ptr %.01215, i64 12
  %48 = load float, ptr %46, align 4, !tbaa !5
  %49 = load float, ptr %47, align 4, !tbaa !5
  %50 = fsub float %48, %49
  store float %50, ptr %45, align 4, !tbaa !5
  %51 = getelementptr inbounds i8, ptr %.01314, i64 16
  %52 = getelementptr inbounds i8, ptr %.01116, i64 16
  %53 = getelementptr inbounds i8, ptr %.01215, i64 16
  %54 = add nuw i64 %.017, 4
  %exitcond.not.3 = icmp eq i64 %54, %9
  br i1 %exitcond.not.3, label %._crit_edge, label %.lr.ph, !llvm.loop !15
}

attributes #0 = { nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) 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, !6, i64 0}
!6 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.unroll.disable"}
!11 = distinct !{!11, !12, !13, !14}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!"llvm.loop.isvectorized", i32 1}
!14 = !{!"llvm.loop.unroll.runtime.disable"}
!15 = distinct !{!15, !12, !13}


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