prune unused SkNx features

src/opts/SkNx_sse.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkNx_sse_DEFINED
 #define SkNx_sse_DEFINED
 
 // This file may assume <= SSE2, but must check SK_CPU_SSE_LEVEL for anything more recent.
 
 namespace {  // See SkNx.h
 
 
 template <>
-class SkNf<2, float> {
+class SkNf<2> {
 public:
     SkNf(const __m128& vec) : fVec(vec) {}
 
     SkNf() {}
     explicit SkNf(float val) : fVec(_mm_set1_ps(val)) {}
     static SkNf Load(const float vals[2]) {
         return _mm_castsi128_ps(_mm_loadl_epi64((const __m128i*)vals));
     }
     SkNf(float a, float b) : fVec(_mm_setr_ps(a,b,0,0)) {}
 
@@ skipping 28 matching lines @@
         return pun.fs[k&1];
     }
 
     bool allTrue() const { return 0xff == (_mm_movemask_epi8(_mm_castps_si128(fVec)) & 0xff); }
     bool anyTrue() const { return 0x00 != (_mm_movemask_epi8(_mm_castps_si128(fVec)) & 0xff); }
 
     __m128 fVec;
 };
 
 template <>
-class SkNf<2, double> {
-public:
-    SkNf(const __m128d& vec) : fVec(vec) {}
-
-    SkNf() {}
-    explicit SkNf(double val)           : fVec( _mm_set1_pd(val) ) {}
-    static SkNf Load(const double vals[2]) { return _mm_loadu_pd(vals); }
-    SkNf(double a, double b) : fVec(_mm_setr_pd(a,b)) {}
-
-    void store(double vals[2]) const { _mm_storeu_pd(vals, fVec); }
-
-    SkNf operator + (const SkNf& o) const { return _mm_add_pd(fVec, o.fVec); }
-    SkNf operator - (const SkNf& o) const { return _mm_sub_pd(fVec, o.fVec); }
-    SkNf operator * (const SkNf& o) const { return _mm_mul_pd(fVec, o.fVec); }
-    SkNf operator / (const SkNf& o) const { return _mm_div_pd(fVec, o.fVec); }
-
-    SkNf operator == (const SkNf& o) const { return _mm_cmpeq_pd (fVec, o.fVec); }
-    SkNf operator != (const SkNf& o) const { return _mm_cmpneq_pd(fVec, o.fVec); }
-    SkNf operator  < (const SkNf& o) const { return _mm_cmplt_pd (fVec, o.fVec); }
-    SkNf operator  > (const SkNf& o) const { return _mm_cmpgt_pd (fVec, o.fVec); }
-    SkNf operator <= (const SkNf& o) const { return _mm_cmple_pd (fVec, o.fVec); }
-    SkNf operator >= (const SkNf& o) const { return _mm_cmpge_pd (fVec, o.fVec); }
-
-    static SkNf Min(const SkNf& l, const SkNf& r) { return _mm_min_pd(l.fVec, r.fVec); }
-    static SkNf Max(const SkNf& l, const SkNf& r) { return _mm_max_pd(l.fVec, r.fVec); }
-
-    SkNf  sqrt() const { return _mm_sqrt_pd(fVec);  }
-    SkNf rsqrt0() const { return _mm_cvtps_pd(_mm_rsqrt_ps(_mm_cvtpd_ps(fVec))); }
-    SkNf rsqrt1() const { return this->rsqrt0(); }
-    SkNf rsqrt2() const { return this->rsqrt1(); }
-
-    SkNf       invert() const { return SkNf(1) / *this; }
-    SkNf approxInvert() const { return _mm_cvtps_pd(_mm_rcp_ps(_mm_cvtpd_ps(fVec))); }
-
-    template <int k> double kth() const {
-        SkASSERT(0 <= k && k < 2);
-        union { __m128d v; double ds[2]; } pun = {fVec};
-        return pun.ds[k&1];
-    }
-
-    bool allTrue() const { return 0xffff == _mm_movemask_epi8(_mm_castpd_si128(fVec)); }
-    bool anyTrue() const { return 0x0000 != _mm_movemask_epi8(_mm_castpd_si128(fVec)); }
-
-    __m128d fVec;
-};
-
-template <>
 class SkNi<4, int> {
 public:
     SkNi(const __m128i& vec) : fVec(vec) {}
 
     SkNi() {}
     explicit SkNi(int val) : fVec(_mm_set1_epi32(val)) {}
     static SkNi Load(const int vals[4]) { return _mm_loadu_si128((const __m128i*)vals); }
     SkNi(int a, int b, int c, int d) : fVec(_mm_setr_epi32(a,b,c,d)) {}
 
     void store(int vals[4]) const { _mm_storeu_si128((__m128i*)vals, fVec); }
@@ skipping 18 matching lines @@
             case 2: return _mm_cvtsi128_si32(_mm_srli_si128(fVec,  8));
             case 3: return _mm_cvtsi128_si32(_mm_srli_si128(fVec, 12));
             default: SkASSERT(false); return 0;
         }
     }
 
     __m128i fVec;
 };
 
 template <>
-class SkNf<4, float> {
+class SkNf<4> {
 public:
     SkNf(const __m128& vec) : fVec(vec) {}
 
     SkNf() {}
     explicit SkNf(float val)           : fVec( _mm_set1_ps(val) ) {}
     static SkNf Load(const float vals[4]) { return _mm_loadu_ps(vals); }
 
     static SkNf FromBytes(const uint8_t bytes[4]) {
         __m128i fix8 = _mm_cvtsi32_si128(*(const int*)bytes);
     #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
@@ skipping 10 matching lines @@
     SkNf(float a, float b, float c, float d) : fVec(_mm_setr_ps(a,b,c,d)) {}
 
     void store(float vals[4]) const { _mm_storeu_ps(vals, fVec); }
     void toBytes(uint8_t bytes[4]) const {
         __m128i fix8_32 = _mm_cvttps_epi32(fVec),
                 fix8_16 = _mm_packus_epi16(fix8_32, fix8_32),
                 fix8    = _mm_packus_epi16(fix8_16, fix8_16);
         *(int*)bytes = _mm_cvtsi128_si32(fix8);
     }
 
-    SkNi<4, int> castTrunc() const { return _mm_cvttps_epi32(fVec); }
-
     SkNf operator + (const SkNf& o) const { return _mm_add_ps(fVec, o.fVec); }
     SkNf operator - (const SkNf& o) const { return _mm_sub_ps(fVec, o.fVec); }
     SkNf operator * (const SkNf& o) const { return _mm_mul_ps(fVec, o.fVec); }
     SkNf operator / (const SkNf& o) const { return _mm_div_ps(fVec, o.fVec); }
 
     SkNf operator == (const SkNf& o) const { return _mm_cmpeq_ps (fVec, o.fVec); }
     SkNf operator != (const SkNf& o) const { return _mm_cmpneq_ps(fVec, o.fVec); }
     SkNf operator  < (const SkNf& o) const { return _mm_cmplt_ps (fVec, o.fVec); }
     SkNf operator  > (const SkNf& o) const { return _mm_cmpgt_ps (fVec, o.fVec); }
     SkNf operator <= (const SkNf& o) const { return _mm_cmple_ps (fVec, o.fVec); }
@@ skipping 135 matching lines @@
         return _mm_or_si128(_mm_and_si128   (fVec, t.fVec),
                             _mm_andnot_si128(fVec, e.fVec));
     }
 
     __m128i fVec;
 };
 
 }  // namespace
 
 #endif//SkNx_sse_DEFINED