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Small cleanups.

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closes https://github.com/official-stockfish/Stockfish/pull/2532

Bench: 4869669
This commit is contained in:
Joost VandeVondele
2020-02-05 15:18:24 +01:00
parent ddd4224640
commit 0c878adb36
11 changed files with 22 additions and 27 deletions
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14
src/misc.cpp
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@@ -299,23 +299,23 @@ void prefetch(void* addr) {
/// With c++17 some of this functionality can be simplified.
#if defined(__linux__) && !defined(__ANDROID__)
void* aligned_ttmem_alloc(size_t allocSize, void** mem) {
void* aligned_ttmem_alloc(size_t allocSize, void*& mem) {
constexpr size_t alignment = 2 * 1024 * 1024; // assumed 2MB page sizes
size_t size = ((allocSize + alignment - 1) / alignment) * alignment; // multiple of alignment
*mem = aligned_alloc(alignment, size);
madvise(*mem, allocSize, MADV_HUGEPAGE);
return *mem;
mem = aligned_alloc(alignment, size);
madvise(mem, allocSize, MADV_HUGEPAGE);
return mem;
}
#else
void* aligned_ttmem_alloc(size_t allocSize, void** mem) {
void* aligned_ttmem_alloc(size_t allocSize, void*& mem) {
constexpr size_t alignment = 64; // assumed cache line size
size_t size = allocSize + alignment - 1; // allocate some extra space
*mem = malloc(size);
void* ret = reinterpret_cast<void*>((uintptr_t(*mem) + alignment - 1) & ~uintptr_t(alignment - 1));
mem = malloc(size);
void* ret = reinterpret_cast<void*>((uintptr_t(mem) + alignment - 1) & ~uintptr_t(alignment - 1));
return ret;
}