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author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-01-18 23:52:12 +0000 |
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committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-01-18 23:52:12 +0000 |
commit | 9cf37e8b48732fccd4c301ed51aafed7074bd84e (patch) | |
tree | 7b0374b0938232f4b315408499a6166b7c69e758 /lib | |
parent | 8887a0f34152b63a84e759b76694d6928d01b4ee (diff) | |
download | external_llvm-9cf37e8b48732fccd4c301ed51aafed7074bd84e.zip external_llvm-9cf37e8b48732fccd4c301ed51aafed7074bd84e.tar.gz external_llvm-9cf37e8b48732fccd4c301ed51aafed7074bd84e.tar.bz2 |
Add a RegisterMaskSDNode class.
This SelectionDAG node will be attached to call nodes by LowerCall(),
and eventually becomes a MO_RegisterMask MachineOperand on the
MachineInstr representing the call instruction.
LowerCall() will attach a register mask that depends on the calling
convention.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148436 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r-- | lib/CodeGen/SelectionDAG/InstrEmitter.cpp | 2 | ||||
-rw-r--r-- | lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h | 1 | ||||
-rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 20 | ||||
-rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 1 |
4 files changed, 22 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp index fbf6d77..bcccefd 100644 --- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp +++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp @@ -351,6 +351,8 @@ void InstrEmitter::AddOperand(MachineInstr *MI, SDValue Op, MI->addOperand(MachineOperand::CreateFPImm(CFP)); } else if (RegisterSDNode *R = dyn_cast<RegisterSDNode>(Op)) { MI->addOperand(MachineOperand::CreateReg(R->getReg(), false)); + } else if (RegisterMaskSDNode *RM = dyn_cast<RegisterMaskSDNode>(Op)) { + MI->addOperand(MachineOperand::CreateRegMask(RM->getRegMask())); } else if (GlobalAddressSDNode *TGA = dyn_cast<GlobalAddressSDNode>(Op)) { MI->addOperand(MachineOperand::CreateGA(TGA->getGlobal(), TGA->getOffset(), TGA->getTargetFlags())); diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h index 9c27b2e..17b4901 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h +++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h @@ -53,6 +53,7 @@ namespace llvm { if (isa<ConstantSDNode>(Node)) return true; if (isa<ConstantFPSDNode>(Node)) return true; if (isa<RegisterSDNode>(Node)) return true; + if (isa<RegisterMaskSDNode>(Node)) return true; if (isa<GlobalAddressSDNode>(Node)) return true; if (isa<BasicBlockSDNode>(Node)) return true; if (isa<FrameIndexSDNode>(Node)) return true; diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 848ba69..040791b 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -383,7 +383,9 @@ static void AddNodeIDCustom(FoldingSetNodeID &ID, const SDNode *N) { case ISD::Register: ID.AddInteger(cast<RegisterSDNode>(N)->getReg()); break; - + case ISD::RegisterMask: + ID.AddPointer(cast<RegisterMaskSDNode>(N)->getRegMask()); + break; case ISD::SRCVALUE: ID.AddPointer(cast<SrcValueSDNode>(N)->getValue()); break; @@ -1375,6 +1377,20 @@ SDValue SelectionDAG::getRegister(unsigned RegNo, EVT VT) { return SDValue(N, 0); } +SDValue SelectionDAG::getRegisterMask(const uint32_t *RegMask) { + FoldingSetNodeID ID; + AddNodeIDNode(ID, ISD::RegisterMask, getVTList(MVT::Untyped), 0, 0); + ID.AddPointer(RegMask); + void *IP = 0; + if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP)) + return SDValue(E, 0); + + SDNode *N = new (NodeAllocator) RegisterMaskSDNode(RegMask); + CSEMap.InsertNode(N, IP); + AllNodes.push_back(N); + return SDValue(N, 0); +} + SDValue SelectionDAG::getEHLabel(DebugLoc dl, SDValue Root, MCSymbol *Label) { FoldingSetNodeID ID; SDValue Ops[] = { Root }; @@ -5946,7 +5962,7 @@ std::string SDNode::getOperationName(const SelectionDAG *G) const { case ISD::BasicBlock: return "BasicBlock"; case ISD::VALUETYPE: return "ValueType"; case ISD::Register: return "Register"; - + case ISD::RegisterMask: return "RegisterMask"; case ISD::Constant: return "Constant"; case ISD::ConstantFP: return "ConstantFP"; case ISD::GlobalAddress: return "GlobalAddress"; diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 9f39699..8b1d9ee 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -2206,6 +2206,7 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable, case ISD::EntryToken: // These nodes remain the same. case ISD::BasicBlock: case ISD::Register: + case ISD::RegisterMask: //case ISD::VALUETYPE: //case ISD::CONDCODE: case ISD::HANDLENODE: |