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Use MaxSizeVector instead of std::vector: xcode sometimes assumes that std::vector allocates aligned memory and therefore issues aligned instruction to initialize it. This can result in random crashes when compiling with AVX instructions enabled.

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This commit is contained in:
Benoit Steiner 2016-09-02 19:25:47 -07:00
parent 373c340b71
commit 13df3441ae
2 changed files with 3 additions and 3 deletions
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4
unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h
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@ -50,7 +50,7 @@ class EventCount {
public:
class Waiter;
EventCount(std::vector<Waiter>& waiters) : waiters_(waiters) {
EventCount(MaxSizeVector<Waiter>& waiters) : waiters_(waiters) {
eigen_assert(waiters.size() < (1 << kWaiterBits) - 1);
// Initialize epoch to something close to overflow to test overflow.
state_ = kStackMask | (kEpochMask - kEpochInc * waiters.size() * 2);
@ -199,7 +199,7 @@ class EventCount {
static const uint64_t kEpochMask = ((1ull << kEpochBits) - 1) << kEpochShift;
static const uint64_t kEpochInc = 1ull << kEpochShift;
std::atomic<uint64_t> state_;
std::vector<Waiter>& waiters_;
MaxSizeVector<Waiter>& waiters_;
void Park(Waiter* w) {
std::unique_lock<std::mutex> lock(w->mu);

2
unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
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@ -123,7 +123,7 @@ class NonBlockingThreadPoolTempl : public Eigen::ThreadPoolInterface {
MaxSizeVector<Thread*> threads_;
MaxSizeVector<Queue*> queues_;
MaxSizeVector<unsigned> coprimes_;
std::vector<EventCount::Waiter> waiters_;
MaxSizeVector<EventCount::Waiter> waiters_;
std::atomic<unsigned> blocked_;
std::atomic<bool> spinning_;
std::atomic<bool> done_;