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[CodeGen] Remove restrictRef (NFC) 

The last use was removed on Apr 14, 2017 in commit
4fe9d6c640.
This commit is contained in:
Kazu Hirata 2022-06-13 23:08:48 -07:00
parent 0cb33551ec
commit 34ff78c5cf
2 changed files with 0 additions and 13 deletions
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1
llvm/include/llvm/CodeGen/RDFGraph.h
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@ -749,7 +749,6 @@ namespace rdf {
RegisterRef makeRegRef(unsigned Reg, unsigned Sub) const;
RegisterRef makeRegRef(const MachineOperand &Op) const;
RegisterRef restrictRef(RegisterRef AR, RegisterRef BR) const;
NodeAddr<RefNode*> getNextRelated(NodeAddr<InstrNode*> IA,
NodeAddr<RefNode*> RA) const;

12
llvm/lib/CodeGen/RDFGraph.cpp
View File

@ -977,18 +977,6 @@ RegisterRef DataFlowGraph::makeRegRef(const MachineOperand &Op) const {
return RegisterRef(PRI.getRegMaskId(Op.getRegMask()), LaneBitmask::getAll());
}
RegisterRef DataFlowGraph::restrictRef(RegisterRef AR, RegisterRef BR) const {
if (AR.Reg == BR.Reg) {
LaneBitmask M = AR.Mask & BR.Mask;
return M.any() ? RegisterRef(AR.Reg, M) : RegisterRef();
}
// This isn't strictly correct, because the overlap may happen in the
// part masked out.
if (PRI.alias(AR, BR))
return AR;
return RegisterRef();
}
// For each stack in the map DefM, push the delimiter for block B on it.
void DataFlowGraph::markBlock(NodeId B, DefStackMap &DefM) {
// Push block delimiters.