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Add various prefetch functions to the standard library.

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This commit is contained in:
Matt Pharr
2011-08-03 12:07:30 -07:00
parent 467f1e71d7
commit 0ac4f7b620
6 changed files with 168 additions and 16 deletions
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37
stdlib.ispc
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@@ -315,6 +315,39 @@ static inline uniform int lanemask() {
return __movmsk(__mask);
}
///////////////////////////////////////////////////////////////////////////
// Prefetching
#define PREFETCHES(NAME, TYPE) \
static inline void prefetch_l1(const reference TYPE ptr) { \
__prefetch_read_1_##NAME##_refsconst(ptr); \
} \
static inline void prefetch_l2(const reference TYPE ptr) { \
__prefetch_read_2_##NAME##_refsconst(ptr); \
} \
static inline void prefetch_l3(const reference TYPE ptr) { \
__prefetch_read_3_##NAME##_refsconst(ptr); \
} \
static inline void prefetch_nt(const reference TYPE ptr) { \
__prefetch_read_nt_##NAME##_refsconst(ptr); \
}
PREFETCHES(uniform_int8, uniform int8)
PREFETCHES(uniform_int16, uniform int16)
PREFETCHES(uniform_int32, uniform int32)
PREFETCHES(uniform_int64, uniform int64)
PREFETCHES(uniform_float, uniform float)
PREFETCHES(uniform_double, uniform double)
PREFETCHES(varying_int8, int8)
PREFETCHES(varying_int16, int16)
PREFETCHES(varying_int32, int32)
PREFETCHES(varying_int64, int64)
PREFETCHES(varying_float, float)
PREFETCHES(varying_double, double)
#undef PREFETCHES
///////////////////////////////////////////////////////////////////////////
// Horizontal ops / reductions
@@ -522,6 +555,8 @@ DEFINE_ATOMIC_OP(unsigned int64,int64,swap,swap)
DEFINE_ATOMIC_OP(double,double,swap,swap)
#undef DEFINE_ATOMIC_OP
#define ATOMIC_DECL_CMPXCHG(TA, TB) \
static inline TA atomic_compare_exchange_global( \
uniform reference TA ref, TA oldval, TA newval) { \
@@ -538,6 +573,8 @@ ATOMIC_DECL_CMPXCHG(int64, int64)
ATOMIC_DECL_CMPXCHG(unsigned int64, int64)
ATOMIC_DECL_CMPXCHG(double, double)
#undef ATOMIC_DECL_CMPXCHG
///////////////////////////////////////////////////////////////////////////
// Floating-Point Math