Mercurial > hg > graal-jvmci-8
diff src/cpu/sparc/vm/stubGenerator_sparc.cpp @ 671:d0994e5bebce
6822204: volatile fences should prefer lock:addl to actual mfence instructions
Reviewed-by: kvn, phh
author | never |
---|---|
date | Thu, 26 Mar 2009 14:31:45 -0700 |
parents | c517646eef23 |
children | 6b2273dd6fa9 |
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--- a/src/cpu/sparc/vm/stubGenerator_sparc.cpp Tue Mar 24 15:09:52 2009 -0700 +++ b/src/cpu/sparc/vm/stubGenerator_sparc.cpp Thu Mar 26 14:31:45 2009 -0700 @@ -817,21 +817,6 @@ Label _atomic_add_stub; // called from other stubs - // Support for void OrderAccess::fence(). - // - address generate_fence() { - StubCodeMark mark(this, "StubRoutines", "fence"); - address start = __ pc(); - - __ membar(Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore | - Assembler::StoreLoad | Assembler::StoreStore)); - __ retl(false); - __ delayed()->nop(); - - return start; - } - - //------------------------------------------------------------------------------------------------------------------------ // The following routine generates a subroutine to throw an asynchronous // UnknownError when an unsafe access gets a fault that could not be @@ -2861,7 +2846,6 @@ StubRoutines::_atomic_cmpxchg_ptr_entry = StubRoutines::_atomic_cmpxchg_entry; StubRoutines::_atomic_cmpxchg_long_entry = generate_atomic_cmpxchg_long(); StubRoutines::_atomic_add_ptr_entry = StubRoutines::_atomic_add_entry; - StubRoutines::_fence_entry = generate_fence(); #endif // COMPILER2 !=> _LP64 }