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6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")

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Reviewed-by: kvn
This commit is contained in:
Tom Rodriguez 2011-04-01 21:45:33 -07:00
parent 3ad32dbe57
commit 5cd8d5c115
2 changed files with 22 additions and 22 deletions
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28
hotspot/src/share/vm/opto/callGenerator.cpp
View file

@ -978,31 +978,19 @@ WarmCallInfo* WarmCallInfo::remove_from(WarmCallInfo* head) {
return head;
}
WarmCallInfo* WarmCallInfo::_always_hot = NULL;
WarmCallInfo* WarmCallInfo::_always_cold = NULL;
WarmCallInfo WarmCallInfo::_always_hot(WarmCallInfo::MAX_VALUE(), WarmCallInfo::MAX_VALUE(),
WarmCallInfo::MIN_VALUE(), WarmCallInfo::MIN_VALUE());
WarmCallInfo WarmCallInfo::_always_cold(WarmCallInfo::MIN_VALUE(), WarmCallInfo::MIN_VALUE(),
WarmCallInfo::MAX_VALUE(), WarmCallInfo::MAX_VALUE());
WarmCallInfo* WarmCallInfo::always_hot() {
if (_always_hot == NULL) {
static double bits[sizeof(WarmCallInfo) / sizeof(double) + 1] = {0};
WarmCallInfo* ci = (WarmCallInfo*) bits;
ci->_profit = ci->_count = MAX_VALUE();
ci->_work = ci->_size = MIN_VALUE();
_always_hot = ci;
}
assert(_always_hot->is_hot(), "must always be hot");
return _always_hot;
assert(_always_hot.is_hot(), "must always be hot");
return &_always_hot;
}
WarmCallInfo* WarmCallInfo::always_cold() {
if (_always_cold == NULL) {
static double bits[sizeof(WarmCallInfo) / sizeof(double) + 1] = {0};
WarmCallInfo* ci = (WarmCallInfo*) bits;
ci->_profit = ci->_count = MIN_VALUE();
ci->_work = ci->_size = MAX_VALUE();
_always_cold = ci;
}
assert(_always_cold->is_cold(), "must always be cold");
return _always_cold;
assert(_always_cold.is_cold(), "must always be cold");
return &_always_cold;
}

16
hotspot/src/share/vm/opto/callGenerator.hpp
View file

@ -215,8 +215,20 @@ class WarmCallInfo : public ResourceObj {
WarmCallInfo* next() const { return _next; }
void set_next(WarmCallInfo* n) { _next = n; }
static WarmCallInfo* _always_hot;
static WarmCallInfo* _always_cold;
static WarmCallInfo _always_hot;
static WarmCallInfo _always_cold;
// Constructor intitialization of always_hot and always_cold
WarmCallInfo(float c, float p, float w, float s) {
_call = NULL;
_hot_cg = NULL;
_next = NULL;
_count = c;
_profit = p;
_work = w;
_size = s;
_heat = 0;
}
public:
// Because WarmInfo objects live over the entire lifetime of the