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-rw-r--r--src/mesa/main/bitset.h21
1 files changed, 18 insertions, 3 deletions
diff --git a/src/mesa/main/bitset.h b/src/mesa/main/bitset.h
index 7a0704b1472..c27b4c474e0 100644
--- a/src/mesa/main/bitset.h
+++ b/src/mesa/main/bitset.h
@@ -129,17 +129,32 @@ __bitset_ffs(const BITSET_WORD *x, int n)
/* bit range operations
*/
-#define BITSET64_TEST_RANGE(x, b, e) \
+#define BITSET64_TEST_SUBRANGE(x, b, e) \
(BITSET64_BITWORD(b) == BITSET64_BITWORD(e) ? \
((x)[BITSET64_BITWORD(b)] & BITSET64_RANGE(b, e)) : \
(assert (!"BITSET64_TEST_RANGE: bit range crosses word boundary"), 0))
-#define BITSET64_SET_RANGE(x, b, e) \
+#define BITSET64_TEST_RANGE(x, b, e) \
+ (BITSET64_BITWORD(b) == BITSET64_BITWORD(e) ? \
+ (BITSET64_TEST_SUBRANGE(x, b, e)) : \
+ (BITSET64_TEST_SUBRANGE(x, b, BITSET64_WORDBITS - 1) | \
+ BITSET64_TEST_SUBRANGE(x, BITSET64_WORDBITS, e)))
+#define BITSET64_SET_SUBRANGE(x, b, e) \
(BITSET64_BITWORD(b) == BITSET64_BITWORD(e) ? \
((x)[BITSET64_BITWORD(b)] |= BITSET64_RANGE(b, e)) : \
(assert (!"BITSET64_SET_RANGE: bit range crosses word boundary"), 0))
-#define BITSET64_CLEAR_RANGE(x, b, e) \
+#define BITSET64_SET_RANGE(x, b, e) \
+ (BITSET64_BITWORD(b) == BITSET64_BITWORD(e) ? \
+ (BITSET64_SET_SUBRANGE(x, b, e)) : \
+ (BITSET64_SET_SUBRANGE(x, b, BITSET64_WORDBITS - 1) | \
+ BITSET64_SET_SUBRANGE(x, BITSET64_WORDBITS, e)))
+#define BITSET64_CLEAR_SUBRANGE(x, b, e) \
(BITSET64_BITWORD(b) == BITSET64_BITWORD(e) ? \
((x)[BITSET64_BITWORD(b)] &= ~BITSET64_RANGE(b, e)) : \
(assert (!"BITSET64_CLEAR_RANGE: bit range crosses word boundary"), 0))
+#define BITSET64_CLEAR_RANGE(x, b, e) \
+ (BITSET64_BITWORD(b) == BITSET64_BITWORD(e) ? \
+ (BITSET64_CLEAR_SUBRANGE(x, b, e)) : \
+ (BITSET64_CLEAR_SUBRANGE(x, b, BITSET64_WORDBITS - 1) | \
+ BITSET64_CLEAR_SUBRANGE(x, BITSET64_WORDBITS, e)))
#endif