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Refactor prng* from cpp macros into inline functions.

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Remove 32-bit variant, convert prng64() to prng_lg_range(), and add
prng_range().
This commit is contained in:
Jason Evans
2016-02-09 16:28:40 -08:00
committed by Jason Evans
parent c87ab25d18
commit 34676d3369
12 changed files with 205 additions and 69 deletions
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37
include/jemalloc/internal/util.h
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@@ -123,7 +123,9 @@ void malloc_printf(const char *format, ...) JEMALLOC_FORMAT_PRINTF(1, 2);
#ifndef JEMALLOC_ENABLE_INLINE
int jemalloc_ffsl(long bitmap);
int jemalloc_ffs(int bitmap);
size_t pow2_ceil(size_t x);
uint64_t pow2_ceil_u64(uint64_t x);
uint32_t pow2_ceil_u32(uint32_t x);
size_t pow2_ceil_zu(size_t x);
size_t lg_floor(size_t x);
void set_errno(int errnum);
int get_errno(void);
@@ -150,9 +152,8 @@ jemalloc_ffs(int bitmap)
return (JEMALLOC_INTERNAL_FFS(bitmap));
}
/* Compute the smallest power of 2 that is >= x. */
JEMALLOC_INLINE size_t
pow2_ceil(size_t x)
JEMALLOC_INLINE uint64_t
pow2_ceil_u64(uint64_t x)
{
x--;
@@ -161,13 +162,37 @@ pow2_ceil(size_t x)
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
#if (LG_SIZEOF_PTR == 3)
x |= x >> 32;
#endif
x++;
return (x);
}
JEMALLOC_INLINE uint32_t
pow2_ceil_u32(uint32_t x)
{
x--;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
x++;
return (x);
}
/* Compute the smallest power of 2 that is >= x. */
JEMALLOC_INLINE size_t
pow2_ceil_zu(size_t x)
{
#if (LG_SIZEOF_PTR == 3)
return (pow2_ceil_u64(x));
#else
return (pow2_ceil_u32(x));
#endif
}
#if (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
JEMALLOC_INLINE size_t
lg_floor(size_t x)