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8227745: Enable Escape Analysis for Better Performance in the Presence of JVMTI Agents

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8233915: JVMTI FollowReferences: Java Heap Leak not found because of C2 Scalar Replacement

Reviewed-by: mdoerr, goetz, sspitsyn, kvn
This commit is contained in:
Richard Reingruber 2020-10-20 15:31:55 +00:00
parent f167a71f1d
commit 40f847e2fb
53 changed files with 5744 additions and 218 deletions
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8
src/hotspot/share/code/nmethod.cpp
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@ -2419,9 +2419,7 @@ void nmethod::verify_interrupt_point(address call_site) {
PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address());
assert(pd != NULL, "PcDesc must exist");
for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(),
pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(),
pd->return_oop());
for (ScopeDesc* sd = new ScopeDesc(this, pd);
!sd->is_top(); sd = sd->sender()) {
sd->verify();
}
@ -3056,9 +3054,7 @@ const char* nmethod::reloc_string_for(u_char* begin, u_char* end) {
ScopeDesc* nmethod::scope_desc_in(address begin, address end) {
PcDesc* p = pc_desc_near(begin+1);
if (p != NULL && p->real_pc(this) <= end) {
return new ScopeDesc(this, p->scope_decode_offset(),
p->obj_decode_offset(), p->should_reexecute(), p->rethrow_exception(),
p->return_oop());
return new ScopeDesc(this, p);
}
return NULL;
}