Rename implementation files to indicate vector size

1 files changed, 558 insertions, 0 deletions

diff --git a/vec_neon_float2.h b/vec_neon_float2.h
new file mode 100644
index 0000000..258a091
--- /dev/null
+++ b/vec_neon_float2.h
@@ -0,0 +1,558 @@
+// -*-C++-*-
+
+// <http://gcc.gnu.org/onlinedocs/gcc/ARM-NEON-Intrinsics.html>
+
+#ifndef VEC_NEON_FLOAT2_H
+#define VEC_NEON_FLOAT2_H
+
+#include "floatprops.h"
+#include "mathfuncs.h"
+#include "vec_base.h"
+
+#include <cmath>
+
+// Neon intrinsics
+#include <arm_neon.h>
+
+
+
+namespace vecmathlib {
+  
+#define VECMATHLIB_HAVE_VEC_FLOAT_2
+  template<> struct boolvec<float,2>;
+  template<> struct intvec<float,2>;
+  template<> struct realvec<float,2>;
+  
+  
+  
+  template<>
+  struct boolvec<float,2>: floatprops<float>
+  {
+    static int const size = 2;
+    typedef bool scalar_t;
+    typedef uint32x2_t bvector_t;
+    static int const alignment = sizeof(bvector_t);
+    
+    static_assert(size * sizeof(real_t) == sizeof(bvector_t),
+                  "vector size is wrong");
+    
+  private:
+    // true values are -1, false values are 0
+    static uint_t from_bool(bool a) { return -int_t(a); }
+    static bool to_bool(uint_t a) { return a; }
+  public:
+    
+    typedef boolvec boolvec_t;
+    typedef intvec<real_t, size> intvec_t;
+    typedef realvec<real_t, size> realvec_t;
+    
+    // Short names for type casts
+    typedef real_t R;
+    typedef int_t I;
+    typedef uint_t U;
+    typedef realvec_t RV;
+    typedef intvec_t IV;
+    typedef boolvec_t BV;
+    typedef floatprops<real_t> FP;
+    typedef mathfuncs<realvec_t> MF;
+    
+    
+    
+    bvector_t v;
+    
+    boolvec() {}
+    // Can't have a non-trivial copy constructor; if so, objects won't
+    // be passed in registers
+    // boolvec(boolvec const& x): v(x.v) {}
+    // boolvec& operator=(boolvec const& x) { return v=x.v, *this; }
+    boolvec(bvector_t x): v(x) {}
+    boolvec(bool a): v(vdup_n_u32(from_bool(a))) {}
+    boolvec(bool const* as)
+    {
+      for (int d=0; d<size; ++d) set_elt(d, as[d]);
+    }
+    
+    operator bvector_t() const { return v; }
+    bool operator[](int n) const { return to_bool(((uint_t const*)&v)[n]); }
+    boolvec& set_elt(int n, bool a)
+    {
+      return ((uint_t*)&v)[n]=from_bool(a), *this;
+    }
+    
+    
+    
+    intvec_t as_int() const;      // defined after intvec
+    intvec_t convert_int() const; // defined after intvec
+    
+    
+    
+    boolvec operator!() const { return vmvn_u32(v); }
+    
+    boolvec operator&&(boolvec x) const { return vand_u32(v, x.v); }
+    boolvec operator||(boolvec x) const { return vorr_u32(v, x.v); }
+    boolvec operator==(boolvec x) const { return vceq_u32(v, x.v); }
+    boolvec operator!=(boolvec x) const { return veor_u32(v, x.v); }
+    
+    bool all() const
+    {
+      boolvec r = vpmin_u32(v, v);
+      return to_bool(r[0]);
+    }
+    bool any() const
+    {
+      boolvec r = vpmax_u32(v, v);
+      return to_bool(r[0]);
+    }
+    
+    
+    
+    // ifthen(condition, then-value, else-value)
+    intvec_t ifthen(intvec_t x, intvec_t y) const; // defined after intvec
+    realvec_t ifthen(realvec_t x, realvec_t y) const; // defined after realvec
+  };
+  
+  
+  
+  template<>
+  struct intvec<float,2>: floatprops<float>
+  {
+    static int const size = 2;
+    typedef int_t scalar_t;
+    typedef int32x2_t ivector_t;
+    static int const alignment = sizeof(ivector_t);
+    
+    static_assert(size * sizeof(real_t) == sizeof(ivector_t),
+                  "vector size is wrong");
+    
+    typedef boolvec<real_t, size> boolvec_t;
+    typedef intvec intvec_t;
+    typedef realvec<real_t, size> realvec_t;
+    
+    // Short names for type casts
+    typedef real_t R;
+    typedef int_t I;
+    typedef uint_t U;
+    typedef realvec_t RV;
+    typedef intvec_t IV;
+    typedef boolvec_t BV;
+    typedef floatprops<real_t> FP;
+    typedef mathfuncs<realvec_t> MF;
+    
+    
+    
+    ivector_t v;
+    
+    intvec() {}
+    // Can't have a non-trivial copy constructor; if so, objects won't
+    // be passed in registers
+    // intvec(intvec const& x): v(x.v) {}
+    // intvec& operator=(intvec const& x) { return v=x.v, *this; }
+    intvec(ivector_t x): v(x) {}
+    intvec(int_t a): v(vdup_n_s32(a)) {}
+    intvec(int_t const* as)
+    {
+      for (int d=0; d<size; ++d) set_elt(d, as[d]);
+    }
+    static intvec iota()
+    {
+      return vcreate_s32((uint64_t(0) << uint64_t(32)) | uint64_t(1));
+    }
+    
+    operator ivector_t() const { return v; }
+    int_t operator[](int n) const { return ((int_t const*)&v)[n]; }
+    intvec& set_elt(int n, int_t a) { return ((int_t*)&v)[n]=a, *this; }
+    
+    
+    
+    // Vector casts do not change the bit battern
+    boolvec_t as_bool() const { return vreinterpret_u32_s32(v); }
+    boolvec_t convert_bool() const { return *this != IV(0); }
+    realvec_t as_float() const;      // defined after realvec
+    realvec_t convert_float() const; // defined after realvec
+    
+    
+    
+    intvec operator+() const { return *this; }
+    intvec operator-() const { return vneg_s32(v); }
+    
+    intvec operator+(intvec x) const { return vadd_s32(v, x.v); }
+    intvec operator-(intvec x) const { return vsub_s32(v, x.v); }
+    intvec operator*(intvec x) const { return vmul_s32(v, x.v); }
+    
+    intvec& operator+=(intvec const& x) { return *this=*this+x; }
+    intvec& operator-=(intvec const& x) { return *this=*this-x; }
+    intvec& operator*=(intvec const& x) { return *this=*this*x; }
+    
+    
+    
+    intvec operator~() const { return vmvn_s32(v); }
+    
+    intvec operator&(intvec x) const { return vand_s32(v, x.v); }
+    intvec operator|(intvec x) const { return vorr_s32(v, x.v); }
+    intvec operator^(intvec x) const { return veor_s32(v, x.v); }
+    
+    intvec& operator&=(intvec const& x) { return *this=*this&x; }
+    intvec& operator|=(intvec const& x) { return *this=*this|x; }
+    intvec& operator^=(intvec const& x) { return *this=*this^x; }
+    
+    
+    
+    intvec lsr(int_t n) const { return lsr(IV(n)); }
+    intvec operator>>(int_t n) const { return *this >> IV(n); }
+    intvec operator<<(int_t n) const { return *this << IV(n); }
+    intvec& operator>>=(int_t n) { return *this=*this>>n; }
+    intvec& operator<<=(int_t n) { return *this=*this<<n; }
+    
+    intvec lsr(intvec n) const
+    {
+      return vreinterpret_s32_u32(vshl_u32(vreinterpret_u32_s32(v), (-n).v));
+    }
+    intvec operator>>(intvec n) const
+    {
+      return vshl_s32(v, (-n).v);
+    }
+    intvec operator<<(intvec n) const
+    {
+      return vshl_s32(v, n.v);
+    }
+    intvec& operator>>=(intvec n) { return *this=*this>>n; }
+    intvec& operator<<=(intvec n) { return *this=*this<<n; }
+    
+    
+    
+    boolvec_t signbit() const
+    {
+      //return *this < IV(I(0));
+      return intvec(vshr_n_s32(v, FP::bits-1)).as_bool();
+    }
+    
+    boolvec_t operator==(intvec const& x) const { return vceq_s32(v, x.v); }
+    boolvec_t operator!=(intvec const& x) const { return !(*this == x); }
+    boolvec_t operator<(intvec const& x) const { return vclt_s32(v, x.v); }
+    boolvec_t operator<=(intvec const& x) const { return vcle_s32(v, x.v); }
+    boolvec_t operator>(intvec const& x) const { return vcgt_s32(v, x.v); }
+    boolvec_t operator>=(intvec const& x) const { return vcge_s32(v, x.v); }
+  };
+  
+  
+  
+  template<>
+  struct realvec<float,2>: floatprops<float>
+  {
+    static int const size = 2;
+    typedef real_t scalar_t;
+    typedef float32x2_t vector_t;
+    static int const alignment = sizeof(vector_t);
+    
+    static char const* name() { return "<NEON:2*float>"; }
+    void barrier() { __asm__("": "+w" (v)); }
+    
+    static_assert(size * sizeof(real_t) == sizeof(vector_t),
+                  "vector size is wrong");
+    
+    typedef boolvec<real_t, size> boolvec_t;
+    typedef intvec<real_t, size> intvec_t;
+    typedef realvec realvec_t;
+    
+    // Short names for type casts
+    typedef real_t R;
+    typedef int_t I;
+    typedef uint_t U;
+    typedef realvec_t RV;
+    typedef intvec_t IV;
+    typedef boolvec_t BV;
+    typedef floatprops<real_t> FP;
+    typedef mathfuncs<realvec_t> MF;
+    
+    
+    
+    vector_t v;
+    
+    realvec() {}
+    // Can't have a non-trivial copy constructor; if so, objects won't
+    // be passed in registers
+    // realvec(realvec const& x): v(x.v) {}
+    // realvec& operator=(realvec const& x) { return v=x.v, *this; }
+    realvec(vector_t x): v(x) {}
+    realvec(real_t a): v(vdup_n_f32(a)) {}
+    realvec(real_t const* as)
+    {
+      for (int d=0; d<size; ++d) set_elt(d, as[d]);
+    }
+    
+    operator vector_t() const { return v; }
+    real_t operator[](int n) const { return ((real_t const*)&v)[n]; }
+    realvec& set_elt(int n, real_t a) { return ((real_t*)&v)[n]=a, *this; }
+    
+    
+    
+    typedef vecmathlib::mask_t<realvec_t> mask_t;
+    
+    static realvec_t loada(real_t const* p)
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      return vld1_f32(p);
+    }
+    static realvec_t loadu(real_t const* p)
+    {
+#if defined __ARM_FEATURE_UNALIGNED
+      return vld1_f32(p);
+#else
+#  error "unaligned NEON loads not implemented"
+#endif
+    }
+    static realvec_t loadu(real_t const* p, std::ptrdiff_t ioff)
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      if (ioff % realvec::size == 0) return loada(p+ioff);
+      return loadu(p+ioff);
+    }
+    realvec_t loada(real_t const* p, mask_t const& m) const
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      if (__builtin_expect(all(m.m), true)) {
+        return loada(p);
+      } else {
+        return m.m.ifthen(loada(p), *this);
+      }
+    }
+    realvec_t loadu(real_t const* p, mask_t const& m) const
+    {
+      if (__builtin_expect(m.all_m, true)) {
+        return loadu(p);
+      } else {
+        return m.m.ifthen(loadu(p), *this);
+      }
+    }
+    realvec_t loadu(real_t const* p, std::ptrdiff_t ioff, mask_t const& m) const
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      if (ioff % realvec::size == 0) return loada(p+ioff, m);
+      return loadu(p+ioff, m);
+    }
+    
+    void storea(real_t* p) const
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      vst1_f32(p, v);
+    }
+    void storeu(real_t* p) const
+    {
+      // Vector stores would require vector loads, which would need to
+      // be atomic
+      // p[0] = (*this)[0];
+      // p[1] = (*this)[1];
+#if defined __ARM_FEATURE_UNALIGNED
+      vst1_f32(p, v);
+#else
+#  error "unaligned NEON stores not implemented"
+#endif
+    }
+    void storeu(real_t* p, std::ptrdiff_t ioff) const
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      if (ioff % realvec::size == 0) return storea(p+ioff);
+      storeu(p+ioff);
+    }
+    void storea(real_t* p, mask_t const& m) const
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      if (__builtin_expect(m.all_m, true)) {
+        storea(p);
+      } else {
+        if (m.m[0]) p[0] = (*this)[0];
+        if (m.m[1]) p[1] = (*this)[1];
+      }
+    }
+    void storeu(real_t* p, mask_t const& m) const
+    {
+      if (__builtin_expect(m.all_m, true)) {
+        storeu(p);
+      } else {
+        if (m.m[0]) p[0] = (*this)[0];
+        if (m.m[1]) p[1] = (*this)[1];
+      }
+    }
+    void storeu(real_t* p, std::ptrdiff_t ioff, mask_t const& m) const
+    {
+      VML_ASSERT(intptr_t(p) % alignment == 0);
+      if (ioff % realvec::size == 0) return storea(p+ioff, m);
+      storeu(p+ioff, m);
+    }
+    
+    
+    
+    intvec_t as_int() const { return vreinterpret_s32_f32(v); }
+    intvec_t convert_int() const { return vcvt_s32_f32(v); }
+    
+    
+    
+    realvec operator+() const { return *this; }
+    realvec operator-() const { return vneg_f32(v); }
+    
+    realvec operator+(realvec x) const { return vadd_f32(v, x.v); }
+    realvec operator-(realvec x) const { return vsub_f32(v, x.v); }
+    realvec operator*(realvec x) const { return vmul_f32(v, x.v); }
+    realvec operator/(realvec x) const { return *this * x.rcp(); }
+    
+    realvec& operator+=(realvec const& x) { return *this=*this+x; }
+    realvec& operator-=(realvec const& x) { return *this=*this-x; }
+    realvec& operator*=(realvec const& x) { return *this=*this*x; }
+    realvec& operator/=(realvec const& x) { return *this=*this/x; }
+    
+    real_t prod() const
+    {
+      return (*this)[0] * (*this)[1];
+    }
+    real_t sum() const
+    {
+      realvec r = vpadd_f32(v, v);
+      return r[0];
+    }
+    
+    
+    
+    boolvec_t operator==(realvec const& x) const { return vceq_f32(v, x.v); }
+    boolvec_t operator!=(realvec const& x) const { return !(*this == x); }
+    boolvec_t operator<(realvec const& x) const { return vclt_f32(v, x.v); }
+    boolvec_t operator<=(realvec const& x) const { return vcle_f32(v, x.v); }
+    boolvec_t operator>(realvec const& x) const { return vcgt_f32(v, x.v); }
+    boolvec_t operator>=(realvec const& x) const { return vcge_f32(v, x.v); }
+    
+    
+    
+    realvec acos() const { return MF::vml_acos(*this); }
+    realvec acosh() const { return MF::vml_acosh(*this); }
+    realvec asin() const { return MF::vml_asin(*this); }
+    realvec asinh() const { return MF::vml_asinh(*this); }
+    realvec atan() const { return MF::vml_atan(*this); }
+    realvec atan2(realvec y) const { return MF::vml_atan2(*this, y); }
+    realvec atanh() const { return MF::vml_atanh(*this); }
+    realvec cbrt() const { return MF::vml_cbrt(*this); }
+    realvec ceil() const
+    {
+      // return vrndp_f32(v);
+      return MF::vml_ceil(*this);
+    }
+    realvec copysign(realvec y) const
+    {
+      return vbsl_f32(vdup_n_u32(FP::signbit_mask), y.v, v);
+    }
+    realvec cos() const { return MF::vml_cos(*this); }
+    realvec cosh() const { return MF::vml_cosh(*this); }
+    realvec exp() const { return MF::vml_exp(*this); }
+    realvec exp10() const { return MF::vml_exp10(*this); }
+    realvec exp2() const { return MF::vml_exp2(*this); }
+    realvec expm1() const { return MF::vml_expm1(*this); }
+    realvec fabs() const { return vabs_f32(v); }
+    realvec fdim(realvec y) const { return MF::vml_fdim(*this, y); }
+    realvec floor() const
+    {
+      // return vrndm_f32(v);
+      return MF::vml_floor(*this);
+    }
+    realvec fma(realvec y, realvec z) const
+    {
+      // TODO: vfma_f32
+      return vmla_f32(z.v, v, y.v);
+    }
+    realvec fmax(realvec y) const { return vmax_f32(v, y.v); }
+    realvec fmin(realvec y) const { return vmin_f32(v, y.v); }
+    realvec fmod(realvec y) const { return MF::vml_fmod(*this, y); }
+    realvec hypot(realvec y) const { return MF::vml_hypot(*this, y); }
+    intvec_t ilogb() const { return MF::vml_ilogb(*this); }
+    boolvec_t isfinite() const { return MF::vml_isfinite(*this); }
+    boolvec_t isinf() const { return MF::vml_isinf(*this); }
+    boolvec_t isnan() const { return MF::vml_isnan(*this); }
+    boolvec_t isnormal() const { return MF::vml_isnormal(*this); }
+    realvec ldexp(int_t n) const { return MF::vml_ldexp(*this, n); }
+    realvec ldexp(intvec_t n) const { return MF::vml_ldexp(*this, n); }
+    realvec log() const { return MF::vml_log(*this); }
+    realvec log10() const { return MF::vml_log10(*this); }
+    realvec log1p() const { return MF::vml_log1p(*this); }
+    realvec log2() const { return MF::vml_log2(*this); }
+    realvec nextafter(realvec y) const { return MF::vml_nextafter(*this, y); }
+    realvec pow(realvec y) const { return MF::vml_pow(*this, y); }
+    realvec rcp() const
+    {
+      realvec r = vrecpe_f32(v);
+      r *= vrecps_f32(v, r);
+      r *= vrecps_f32(v, r);
+      return r;
+    }
+    realvec remainder(realvec y) const { return MF::vml_remainder(*this, y); }
+    realvec rint() const
+    {
+      // return vrndn_f32(v);
+      return MF::vml_rint(*this);
+    }
+    realvec round() const
+    {
+      // return vrnda_f32(v);
+      return MF::vml_round(*this);
+    }
+    realvec rsqrt() const
+    {
+      realvec r = vrsqrte_f32(v);
+      r *= vrsqrts_f32(v, r*r);
+      r *= vrsqrts_f32(v, r*r);
+      return r;
+    }
+    boolvec_t signbit() const { return MF::vml_signbit(*this); }
+    realvec sin() const { return MF::vml_sin(*this); }
+    realvec sinh() const { return MF::vml_sinh(*this); }
+    realvec sqrt() const { return *this * rsqrt(); }
+    realvec tan() const { return MF::vml_tan(*this); }
+    realvec tanh() const { return MF::vml_tanh(*this); }
+    realvec trunc() const
+    {
+      // return vrnd_f32(v);
+      return MF::vml_trunc(*this);
+    }
+  };
+  
+  
+  
+  // boolvec definitions
+  
+  inline
+  auto boolvec<float,2>::as_int() const -> intvec_t
+  {
+    return vreinterpret_s32_u32(v);
+  }
+  
+  inline
+  auto boolvec<float,2>::convert_int() const -> intvec_t
+  {
+    return - as_int();
+  }
+  
+  inline
+  auto boolvec<float,2>::ifthen(intvec_t x, intvec_t y) const -> intvec_t
+  {
+    return vbsl_s32(v, x.v, y.v);
+  }
+  
+  inline
+  auto boolvec<float,2>::ifthen(realvec_t x, realvec_t y) const -> realvec_t
+  {
+    return vbsl_f32(v, x.v, y.v);
+  }
+  
+  
+  
+  // intvec definitions
+  
+  inline auto intvec<float,2>::as_float() const -> realvec_t
+  {
+    return vreinterpret_f32_s32(v);
+  }
+  
+  inline auto intvec<float,2>::convert_float() const -> realvec_t
+  {
+    return vcvt_f32_s32(v);
+  }
+  
+} // namespace vecmathlib
+
+#endif  // #ifndef VEC_NEON_FLOAT2_H