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util/bitset: add BITSET_GET_RANGE_INSIDE_WORD

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to be used later

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32424>
This commit is contained in:
Marek Olšák 2024-11-30 08:00:53 -05:00 • committed by Marge Bot
parent da3f9e3626
commit 16f7d22394
1 changed files with 5 additions and 3 deletions
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8
src/util/bitset.h
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@ -207,11 +207,13 @@ __bitset_shl(BITSET_WORD *x, unsigned amount, unsigned n)
/* bit range operations (e=end is inclusive)
*/
#define BITSET_TEST_RANGE_INSIDE_WORD(x, b, e, mask) \
#define BITSET_GET_RANGE_INSIDE_WORD(x, b, e) \
(BITSET_BITWORD(b) == BITSET_BITWORD(e) ? \
(((x)[BITSET_BITWORD(b)] & BITSET_RANGE(b, e)) == \
(((BITSET_WORD)mask) << (b % BITSET_WORDBITS))) : \
(((x)[BITSET_BITWORD(b)] >> (b % BITSET_WORDBITS)) & \
BITSET_MASK((e) - (b) + 1)) : \
(assert (!"BITSET_TEST_RANGE: bit range crosses word boundary"), 0))
#define BITSET_TEST_RANGE_INSIDE_WORD(x, b, e, mask) \
(BITSET_GET_RANGE_INSIDE_WORD(x, b, e) == (mask))
#define BITSET_SET_RANGE_INSIDE_WORD(x, b, e) \
(BITSET_BITWORD(b) == BITSET_BITWORD(e) ? \
((x)[BITSET_BITWORD(b)] |= BITSET_RANGE(b, e)) : \