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8188764: Obsolete AssumeMP and then remove all support for non-MP builds

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Reviewed-by: mikael, mdoerr, bulasevich, eosterlund
This commit is contained in:
David Holmes 2018-10-03 03:41:57 -04:00
parent 5cfc3bbdd4
commit a3cd6a1a70
52 changed files with 465 additions and 774 deletions
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21
src/hotspot/cpu/sparc/sharedRuntime_sparc.cpp
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@ -2371,17 +2371,16 @@ nmethod* SharedRuntime::generate_native_wrapper(MacroAssembler* masm,
// didn't see any synchronization is progress, and escapes.
__ set(_thread_in_native_trans, G3_scratch);
__ st(G3_scratch, G2_thread, JavaThread::thread_state_offset());
if(os::is_MP()) {
if (UseMembar) {
// Force this write out before the read below
__ membar(Assembler::StoreLoad);
} else {
// Write serialization page so VM thread can do a pseudo remote membar.
// We use the current thread pointer to calculate a thread specific
// offset to write to within the page. This minimizes bus traffic
// due to cache line collision.
__ serialize_memory(G2_thread, G1_scratch, G3_scratch);
}
if (UseMembar) {
// Force this write out before the read below
__ membar(Assembler::StoreLoad);
} else {
// Write serialization page so VM thread can do a pseudo remote membar.
// We use the current thread pointer to calculate a thread specific
// offset to write to within the page. This minimizes bus traffic
// due to cache line collision.
__ serialize_memory(G2_thread, G1_scratch, G3_scratch);
}
Label L;