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6866190: Remove SIMPLE_STACK code from TaskQueue

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What the title says. We don't use SIMPLE_STACK any more.

Reviewed-by: ysr
This commit is contained in:
Antonios Printezis 2009-10-07 19:01:55 -04:00
parent 9681f68f38
commit a67426faf8
1 changed files with 0 additions and 22 deletions
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22
hotspot/src/share/vm/utilities/taskqueue.hpp
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@ -465,19 +465,7 @@ public:
#endif #endif
}; };
#define SIMPLE_STACK 0
template<class E> inline bool GenericTaskQueue<E>::push(E t) { template<class E> inline bool GenericTaskQueue<E>::push(E t) {
#if SIMPLE_STACK
uint localBot = _bottom;
if (_bottom < max_elems()) {
_elems[localBot] = t;
_bottom = localBot + 1;
return true;
} else {
return false;
}
#else
uint localBot = _bottom; uint localBot = _bottom;
assert((localBot >= 0) && (localBot < N), "_bottom out of range."); assert((localBot >= 0) && (localBot < N), "_bottom out of range.");
idx_t top = _age.top(); idx_t top = _age.top();
@ -490,18 +478,9 @@ template<class E> inline bool GenericTaskQueue<E>::push(E t) {
} else { } else {
return push_slow(t, dirty_n_elems); return push_slow(t, dirty_n_elems);
} }
#endif
} }
template<class E> inline bool GenericTaskQueue<E>::pop_local(E& t) { template<class E> inline bool GenericTaskQueue<E>::pop_local(E& t) {
#if SIMPLE_STACK
uint localBot = _bottom;
assert(localBot > 0, "precondition.");
localBot--;
t = _elems[localBot];
_bottom = localBot;
return true;
#else
uint localBot = _bottom; uint localBot = _bottom;
// This value cannot be N-1. That can only occur as a result of // This value cannot be N-1. That can only occur as a result of
// the assignment to bottom in this method. If it does, this method // the assignment to bottom in this method. If it does, this method
@ -529,7 +508,6 @@ template<class E> inline bool GenericTaskQueue<E>::pop_local(E& t) {
// path. // path.
return pop_local_slow(localBot, _age.get()); return pop_local_slow(localBot, _age.get());
} }
#endif
} }
typedef oop Task; typedef oop Task;