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[algs] Move hb_vector_size_t to bit-page as only user

This commit is contained in:
Behdad Esfahbod 2022-11-18 15:54:34 -07:00
parent 01f961ac3a
commit 43a4028f0e
2 changed files with 44 additions and 43 deletions
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43
src/hb-algs.hh
View File

@ -1311,47 +1311,4 @@ struct
HB_FUNCOBJ (hb_dec); HB_FUNCOBJ (hb_dec);
/* Compiler-assisted vectorization. */
/* Type behaving similar to vectorized vars defined using __attribute__((vector_size(...))),
* basically a fixed-size bitset. */
template <typename elt_t, unsigned int byte_size>
struct hb_vector_size_t
{
elt_t& operator [] (unsigned int i) { return v[i]; }
const elt_t& operator [] (unsigned int i) const { return v[i]; }
void clear (unsigned char v = 0) { memset (this, v, sizeof (*this)); }
template <typename Op>
hb_vector_size_t process (const Op& op) const
{
hb_vector_size_t r;
for (unsigned int i = 0; i < ARRAY_LENGTH (v); i++)
r.v[i] = op (v[i]);
return r;
}
template <typename Op>
hb_vector_size_t process (const Op& op, const hb_vector_size_t &o) const
{
hb_vector_size_t r;
for (unsigned int i = 0; i < ARRAY_LENGTH (v); i++)
r.v[i] = op (v[i], o.v[i]);
return r;
}
hb_vector_size_t operator | (const hb_vector_size_t &o) const
{ return process (hb_bitwise_or, o); }
hb_vector_size_t operator & (const hb_vector_size_t &o) const
{ return process (hb_bitwise_and, o); }
hb_vector_size_t operator ^ (const hb_vector_size_t &o) const
{ return process (hb_bitwise_xor, o); }
hb_vector_size_t operator ~ () const
{ return process (hb_bitwise_neg); }
private:
static_assert (0 == byte_size % sizeof (elt_t), "");
elt_t v[byte_size / sizeof (elt_t)];
};
#endif /* HB_ALGS_HH */ #endif /* HB_ALGS_HH */

44
src/hb-bit-page.hh
View File

@ -30,6 +30,50 @@
#include "hb.hh" #include "hb.hh"
/* Compiler-assisted vectorization. */
/* Type behaving similar to vectorized vars defined using __attribute__((vector_size(...))),
* basically a fixed-size bitset. */
template <typename elt_t, unsigned int byte_size>
struct hb_vector_size_t
{
elt_t& operator [] (unsigned int i) { return v[i]; }
const elt_t& operator [] (unsigned int i) const { return v[i]; }
void clear (unsigned char v = 0) { memset (this, v, sizeof (*this)); }
template <typename Op>
hb_vector_size_t process (const Op& op) const
{
hb_vector_size_t r;
for (unsigned int i = 0; i < ARRAY_LENGTH (v); i++)
r.v[i] = op (v[i]);
return r;
}
template <typename Op>
hb_vector_size_t process (const Op& op, const hb_vector_size_t &o) const
{
hb_vector_size_t r;
for (unsigned int i = 0; i < ARRAY_LENGTH (v); i++)
r.v[i] = op (v[i], o.v[i]);
return r;
}
hb_vector_size_t operator | (const hb_vector_size_t &o) const
{ return process (hb_bitwise_or, o); }
hb_vector_size_t operator & (const hb_vector_size_t &o) const
{ return process (hb_bitwise_and, o); }
hb_vector_size_t operator ^ (const hb_vector_size_t &o) const
{ return process (hb_bitwise_xor, o); }
hb_vector_size_t operator ~ () const
{ return process (hb_bitwise_neg); }
private:
static_assert (0 == byte_size % sizeof (elt_t), "");
elt_t v[byte_size / sizeof (elt_t)];
};
struct hb_bit_page_t struct hb_bit_page_t
{ {
void init0 () { v.clear (); } void init0 () { v.clear (); }