Mercurial > hg > truffle
diff src/share/vm/opto/matcher.cpp @ 14439:50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
Summary: Use new nodes for loadFence/storeFence intrinsics in C2.
Reviewed-by: kvn, dholmes
| author | goetz |
|---|---|
| date | Tue, 26 Nov 2013 18:38:19 -0800 |
| parents | da862781b584 |
| children | 41b780b43b74 |
line wrap: on
line diff
--- a/src/share/vm/opto/matcher.cpp Fri Nov 22 12:14:09 2013 -0800 +++ b/src/share/vm/opto/matcher.cpp Tue Nov 26 18:38:19 2013 -0800 @@ -2333,7 +2333,7 @@ bool Matcher::post_store_load_barrier(const Node* vmb) { Compile* C = Compile::current(); assert(vmb->is_MemBar(), ""); - assert(vmb->Opcode() != Op_MemBarAcquire, ""); + assert(vmb->Opcode() != Op_MemBarAcquire && vmb->Opcode() != Op_LoadFence, ""); const MemBarNode* membar = vmb->as_MemBar(); // Get the Ideal Proj node, ctrl, that can be used to iterate forward @@ -2378,7 +2378,7 @@ if (x->is_MemBar()) { // We must retain this membar if there is an upcoming volatile // load, which will be followed by acquire membar. - if (xop == Op_MemBarAcquire) { + if (xop == Op_MemBarAcquire || xop == Op_LoadFence) { return false; } else { // For other kinds of barriers, check by pretending we