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-rw-r--r--sys/sys/systm.h27
1 files changed, 0 insertions, 27 deletions
diff --git a/sys/sys/systm.h b/sys/sys/systm.h
index bb0d64f..f4d2e92 100644
--- a/sys/sys/systm.h
+++ b/sys/sys/systm.h
@@ -424,33 +424,6 @@ int alloc_unr_specific(struct unrhdr *uh, u_int item);
int alloc_unrl(struct unrhdr *uh);
void free_unr(struct unrhdr *uh, u_int item);
-/*
- * Population count algorithm using SWAR approach
- * - "SIMD Within A Register".
- */
-static __inline uint32_t
-bitcount32(uint32_t x)
-{
-
- x = (x & 0x55555555) + ((x & 0xaaaaaaaa) >> 1);
- x = (x & 0x33333333) + ((x & 0xcccccccc) >> 2);
- x = (x + (x >> 4)) & 0x0f0f0f0f;
- x = (x + (x >> 8));
- x = (x + (x >> 16)) & 0x000000ff;
- return (x);
-}
-
-static __inline uint16_t
-bitcount16(uint32_t x)
-{
-
- x = (x & 0x5555) + ((x & 0xaaaa) >> 1);
- x = (x & 0x3333) + ((x & 0xcccc) >> 2);
- x = (x + (x >> 4)) & 0x0f0f;
- x = (x + (x >> 8)) & 0x00ff;
- return (x);
-}
-
void intr_prof_stack_use(struct thread *td, struct trapframe *frame);
#endif /* !_SYS_SYSTM_H_ */
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