1 files changed, 0 insertions, 125 deletions
diff --git a/thirdparty/embree-aarch64/kernels/common/stack_item.h b/thirdparty/embree-aarch64/kernels/common/stack_item.h
deleted file mode 100644
index 533c385365..0000000000
--- a/thirdparty/embree-aarch64/kernels/common/stack_item.h
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright 2009-2020 Intel Corporation
-// SPDX-License-Identifier: Apache-2.0
-
-#pragma once
-
-#include "default.h"
-
-namespace embree
-{
-  /*! An item on the stack holds the node ID and distance of that node. */
-  template<typename T>
-  struct __aligned(16) StackItemT
-  {
-    /*! assert that the xchg function works */
-    static_assert(sizeof(T) <= 12, "sizeof(T) <= 12 failed");
-
-    __forceinline StackItemT() {}
-
-    __forceinline StackItemT(T &ptr, unsigned &dist) : ptr(ptr), dist(dist) {}
-
-    /*! use SSE instructions to swap stack items */
-    __forceinline static void xchg(StackItemT& a, StackItemT& b) 
-    { 
-      const vfloat4 sse_a = vfloat4::load((float*)&a); 
-      const vfloat4 sse_b = vfloat4::load((float*)&b);
-      vfloat4::store(&a,sse_b);
-      vfloat4::store(&b,sse_a);
-    }
-
-    /*! Sort 2 stack items. */
-    __forceinline friend void sort(StackItemT& s1, StackItemT& s2) {
-      if (s2.dist < s1.dist) xchg(s2,s1);
-    }
-    
-    /*! Sort 3 stack items. */
-    __forceinline friend void sort(StackItemT& s1, StackItemT& s2, StackItemT& s3)
-    {
-      if (s2.dist < s1.dist) xchg(s2,s1);
-      if (s3.dist < s2.dist) xchg(s3,s2);
-      if (s2.dist < s1.dist) xchg(s2,s1);
-    }
-    
-    /*! Sort 4 stack items. */
-    __forceinline friend void sort(StackItemT& s1, StackItemT& s2, StackItemT& s3, StackItemT& s4)
-    {
-      if (s2.dist < s1.dist) xchg(s2,s1);
-      if (s4.dist < s3.dist) xchg(s4,s3);
-      if (s3.dist < s1.dist) xchg(s3,s1);
-      if (s4.dist < s2.dist) xchg(s4,s2);
-      if (s3.dist < s2.dist) xchg(s3,s2);
-    }
-
-    /*! use SSE instructions to swap stack items */
-    __forceinline static void cmp_xchg(vint4& a, vint4& b) 
-    { 
-#if defined(__AVX512VL__)
-      const vboolf4 mask(shuffle<2,2,2,2>(b) < shuffle<2,2,2,2>(a));
-#else
-      const vboolf4 mask0(b < a);
-      const vboolf4 mask(shuffle<2,2,2,2>(mask0));
-#endif
-      const vint4 c = select(mask,b,a);
-      const vint4 d = select(mask,a,b);
-      a = c;
-      b = d;
-    }
-    
-    /*! Sort 3 stack items. */
-    __forceinline static void sort3(vint4& s1, vint4& s2, vint4& s3)
-    {
-      cmp_xchg(s2,s1);
-      cmp_xchg(s3,s2);
-      cmp_xchg(s2,s1);
-    }
-    
-    /*! Sort 4 stack items. */
-    __forceinline static void sort4(vint4& s1, vint4& s2, vint4& s3, vint4& s4)
-    {
-      cmp_xchg(s2,s1);
-      cmp_xchg(s4,s3);
-      cmp_xchg(s3,s1);
-      cmp_xchg(s4,s2);
-      cmp_xchg(s3,s2);
-    }
-
-
-    /*! Sort N stack items. */
-    __forceinline friend void sort(StackItemT* begin, StackItemT* end)
-    {
-      for (StackItemT* i = begin+1; i != end; ++i)
-      {
-        const vfloat4 item = vfloat4::load((float*)i);
-        const unsigned dist = i->dist;
-        StackItemT* j = i;
-
-        while ((j != begin) && ((j-1)->dist < dist))
-        {
-          vfloat4::store(j, vfloat4::load((float*)(j-1)));
-          --j;
-        }
-
-        vfloat4::store(j, item);
-      }
-    }
-    
-  public:
-    T ptr;
-    unsigned dist;
-  };
-
-  /*! An item on the stack holds the node ID and active ray mask. */
-  template<typename T>
-  struct __aligned(8) StackItemMaskT
-  {
-    T ptr;
-    size_t mask;
-  };
-
-  struct __aligned(8) StackItemMaskCoherent
-  {
-    size_t mask;
-    size_t parent;
-    size_t child;
-  };
-}