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6943304: remove tagged stack interpreter

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Reviewed-by: coleenp, never, gbenson
This commit is contained in:
Christian Thalinger 2010-04-30 08:37:24 -07:00
parent 55457c9cc7
commit 0211f9703a
51 changed files with 510 additions and 1891 deletions
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17
hotspot/src/share/vm/runtime/sharedRuntime.cpp
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@ -1842,14 +1842,11 @@ class AdapterFingerPrint : public CHeapObj {
case T_OBJECT:
case T_ARRAY:
if (!TaggedStackInterpreter) {
#ifdef _LP64
return T_LONG;
return T_LONG;
#else
return T_INT;
return T_INT;
#endif
}
return T_OBJECT;
case T_INT:
case T_LONG:
@ -2595,17 +2592,9 @@ JRT_LEAF(intptr_t*, SharedRuntime::OSR_migration_begin( JavaThread *thread) )
// Copy the locals. Order is preserved so that loading of longs works.
// Since there's no GC I can copy the oops blindly.
assert( sizeof(HeapWord)==sizeof(intptr_t), "fix this code");
if (TaggedStackInterpreter) {
for (int i = 0; i < max_locals; i++) {
// copy only each local separately to the buffer avoiding the tag
buf[i] = *fr.interpreter_frame_local_at(max_locals-i-1);
}
} else {
Copy::disjoint_words(
(HeapWord*)fr.interpreter_frame_local_at(max_locals-1),
Copy::disjoint_words((HeapWord*)fr.interpreter_frame_local_at(max_locals-1),
(HeapWord*)&buf[0],
max_locals);
}
// Inflate locks. Copy the displaced headers. Be careful, there can be holes.
int i = max_locals;