diff options
| author | Dmitriy Nester <[email protected]> | 2020-02-27 15:37:00 +0200 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-05-25 19:41:09 +0000 |
| commit | 33fd35e2d30f7f31a9ce465ee79d8a874355c774 (patch) | |
| tree | cf6814491984aa885b3bfe1b3a389355181c8b0b | |
| parent | 387176829bcef7058ff2be8f175295e9f80008e5 (diff) | |
r600: replace fnv1a hash function with xxhash
xxhash is faster than fnv1a in almost all circumstances, so we're
switching to it globally.
Signed-off-by: Dmytro Nester <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4020>
| -rw-r--r-- | src/gallium/drivers/r600/sfn/sfn_nir_vectorize_vs_inputs.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gallium/drivers/r600/sfn/sfn_nir_vectorize_vs_inputs.c b/src/gallium/drivers/r600/sfn/sfn_nir_vectorize_vs_inputs.c index 252fa5d5786..16e43b79c0f 100644 --- a/src/gallium/drivers/r600/sfn/sfn_nir_vectorize_vs_inputs.c +++ b/src/gallium/drivers/r600/sfn/sfn_nir_vectorize_vs_inputs.c @@ -26,6 +26,8 @@ #include "nir_deref.h" #include "util/u_dynarray.h" #include "util/u_math.h" +#define XXH_INLINE_ALL +#include "util/xxhash.h" /** @file nir_opt_vectorize_io.c * @@ -221,7 +223,7 @@ r600_cmp_func(const void *data1, const void *data2) return r600_io_access_same_var(instr1, instr2); } -#define HASH(hash, data) _mesa_fnv32_1a_accumulate((hash), (data)) +#define HASH(hash, data) XXH32(&(data), sizeof(data), (hash)) static uint32_t r600_hash_instr(const nir_instr *instr) @@ -232,7 +234,7 @@ r600_hash_instr(const nir_instr *instr) nir_variable *var = nir_deref_instr_get_variable(nir_src_as_deref(intr->src[0])); - uint32_t hash = _mesa_fnv32_1a_offset_bias; + uint32_t hash = 0; hash = HASH(hash, var->type); return HASH(hash, var->data.location); |