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| author | H. Peter Anvin <hpa@zytor.com> | 2019-09-23 16:40:03 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2019-09-23 16:40:03 -0700 |
| commit | 8571f06061b47471a340e350fdfcd804098637d6 (patch) | |
| tree | c255ed0e90a4b716e98d6c9b7635bb88b482e212 /include/hashtbl.h | |
| parent | f7dbdb2e136db99051b14403a0f29c5155bbf7d8 (diff) | |
| download | nasm-8571f06061b47471a340e350fdfcd804098637d6.tar.gz | |
preprocessor: major cleanups; inline text into Tokenpp-inline
Major cleanups of the preprocessor. In particular, the
block-allocation of Token is pretty ridiculous since nearly every
token requires a text allocation anyway. Change the definition of
Token so that only very long tokens (48+ characters on 64-bit systems)
need to be stored out of line.
If malloc() preserves alignment (XXX: glibc doesn't) then this means
that each Token will fit in a cache line.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/hashtbl.h')
| -rw-r--r-- | include/hashtbl.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/hashtbl.h b/include/hashtbl.h index 4c6cd5e3..e84d5061 100644 --- a/include/hashtbl.h +++ b/include/hashtbl.h @@ -1,5 +1,5 @@ /* ----------------------------------------------------------------------- * - * + * * Copyright 1996-2018 The NASM Authors - All Rights Reserved * See the file AUTHORS included with the NASM distribution for * the specific copyright holders. @@ -14,7 +14,7 @@ * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. - * + * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF @@ -73,6 +73,12 @@ uint64_t crc64b(uint64_t crc, const void *data, size_t len); uint64_t crc64ib(uint64_t crc, const void *data, size_t len); #define CRC64_INIT UINT64_C(0xffffffffffffffff) +static inline uint64_t crc64_byte(uint64_t crc, uint8_t v) +{ + extern const uint64_t crc64_tab[256]; + return crc64_tab[(uint8_t)(v ^ crc)] ^ (crc >> 8); +} + void **hash_find(struct hash_table *head, const char *string, struct hash_insert *insert); void **hash_findb(struct hash_table *head, const void *key, size_t keylen, |