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8223051: support loops with long (64b) trip counts

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Reviewed-by: vlivanov, thartmann, jrose
This commit is contained in:
Roland Westrelin 2020-10-19 11:30:13 +00:00
parent e9be2db7ac
commit e76de18956
11 changed files with 839 additions and 79 deletions
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2
src/hotspot/share/opto/macroArrayCopy.cpp
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@ -958,7 +958,7 @@ MergeMemNode* PhaseMacroExpand::generate_slow_arraycopy(ArrayCopyNode *ac,
call->init_req(TypeFunc::Parms+2, dest);
call->init_req(TypeFunc::Parms+3, dest_offset);
call->init_req(TypeFunc::Parms+4, copy_length);
copy_call_debug_info(ac, call);
call->copy_call_debug_info(&_igvn, ac);
call->set_cnt(PROB_UNLIKELY_MAG(4)); // Same effect as RC_UNCOMMON.
_igvn.replace_node(ac, call);