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llvm.memory.barrier, and impl for x86 and alpha

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth
2008-02-16 01:24:58 +00:00
parent 527c250a90
commit 22c5c1b2df
17 changed files with 256 additions and 1 deletions
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9
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@@ -3046,6 +3046,15 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
DAG.setRoot(DAG.getNode(ISD::TRAP, MVT::Other, getRoot()));
return 0;
}
case Intrinsic::memory_barrier: {
SDOperand Ops[6];
Ops[0] = getRoot();
for (int x = 1; x < 6; ++x)
Ops[x] = getValue(I.getOperand(x));
DAG.setRoot(DAG.getNode(ISD::MEMBARRIER, MVT::Other, &Ops[0], 6));
return 0;
}
}
}