[PPC] cleanup of mayLoad/mayStore flags and memory operands.
1) Explicitly sets mayLoad/mayStore property in the tablegen files on load/store
instructions.
2) Updated the flags on a number of intrinsics indicating that they write
memory.
3) Added SDNPMemOperand flags for some target dependent SDNodes so that they
propagate their memory operand
Review: https://reviews.llvm.org/D28818
llvm-svn: 293200
diff --git a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 5b540b1..bef89c7 100644
--- a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -2964,7 +2964,11 @@
SelectAddrIdxOnly(LD->getBasePtr(), Base, Offset)) {
SDValue Chain = LD->getChain();
SDValue Ops[] = { Base, Offset, Chain };
- CurDAG->SelectNodeTo(N, PPC::LXVDSX, N->getValueType(0), Ops);
+ SDNode *NewN = CurDAG->SelectNodeTo(N, PPC::LXVDSX,
+ N->getValueType(0), Ops);
+ MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
+ MemOp[0] = LD->getMemOperand();
+ cast<MachineSDNode>(NewN)->setMemRefs(MemOp, MemOp + 1);
return;
}
}