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8229258: Rework markOop and markOopDesc into a simpler mark word value carrier

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Reviewed-by: rkennke, coleenp, kbarrett, dcubed
This commit is contained in:
Stefan Karlsson 2019-08-06 10:48:21 +02:00
parent f075a3278b
commit ae5615c614
132 changed files with 1215 additions and 1236 deletions
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6
src/hotspot/share/runtime/thread.cpp
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@ -173,7 +173,7 @@ THREAD_LOCAL_DECL Thread* Thread::_thr_current = NULL;
// Support for forcing alignment of thread objects for biased locking
void* Thread::allocate(size_t size, bool throw_excpt, MEMFLAGS flags) {
if (UseBiasedLocking) {
const int alignment = markOopDesc::biased_lock_alignment;
const int alignment = markWord::biased_lock_alignment;
size_t aligned_size = size + (alignment - sizeof(intptr_t));
void* real_malloc_addr = throw_excpt? AllocateHeap(aligned_size, flags, CURRENT_PC)
: AllocateHeap(aligned_size, flags, CURRENT_PC,
@ -301,9 +301,9 @@ Thread::Thread() {
#endif // CHECK_UNHANDLED_OOPS
#ifdef ASSERT
if (UseBiasedLocking) {
assert((((uintptr_t) this) & (markOopDesc::biased_lock_alignment - 1)) == 0, "forced alignment of thread object failed");
assert((((uintptr_t) this) & (markWord::biased_lock_alignment - 1)) == 0, "forced alignment of thread object failed");
assert(this == _real_malloc_address ||
this == align_up(_real_malloc_address, (int)markOopDesc::biased_lock_alignment),
this == align_up(_real_malloc_address, (int)markWord::biased_lock_alignment),
"bug in forced alignment of thread objects");
}
#endif // ASSERT