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8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)

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Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Erik Osterlund <erik.osterlund@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Kim Barrett <kim.barrett@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Roland Westrelin <rwestrel@redhat.com>
Co-authored-by: Coleen Phillimore <coleen.phillimore@oracle.com>
Co-authored-by: Robbin Ehn <robbin.ehn@oracle.com>
Co-authored-by: Gerard Ziemski <gerard.ziemski@oracle.com>
Co-authored-by: Hugh Wilkinson <hugh.wilkinson@intel.com>
Co-authored-by: Sandhya Viswanathan <sandhya.viswanathan@intel.com>
Co-authored-by: Bill Wheeler <bill.npo.wheeler@intel.com>
Co-authored-by: Vinay K. Awasthi <vinay.k.awasthi@intel.com>
Co-authored-by: Yasumasa Suenaga <yasuenag@gmail.com>
Reviewed-by: pliden, stefank, eosterlund, ehelin, sjohanss, rbackman, coleenp, ihse, jgeorge, lmesnik, rkennke
This commit is contained in:
Per Lidén 2018-06-12 17:40:28 +02:00
parent 312328b44c
commit e7af7a4aef
322 changed files with 27196 additions and 79 deletions
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8
src/hotspot/share/compiler/oopMap.cpp
View file

@ -380,8 +380,12 @@ void OopMapSet::all_do(const frame *fr, const RegisterMap *reg_map,
continue;
}
#ifdef ASSERT
if ((((uintptr_t)loc & (sizeof(*loc)-1)) != 0) ||
!Universe::heap()->is_in_or_null(*loc)) {
// We can not verify the oop here if we are using ZGC, the oop
// will be bad in case we had a safepoint between a load and a
// load barrier.
if (!UseZGC &&
((((uintptr_t)loc & (sizeof(*loc)-1)) != 0) ||
!Universe::heap()->is_in_or_null(*loc))) {
tty->print_cr("# Found non oop pointer. Dumping state at failure");
// try to dump out some helpful debugging information
trace_codeblob_maps(fr, reg_map);