Make MachineFunction not crash when TargetMachine::getRegisterInfo() returns
NULL, but just hide some debug output then. llvm-svn: 57437
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35e1387ac6
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@ -110,8 +110,11 @@ void ilist_traits<MachineBasicBlock>::deleteNode(MachineBasicBlock *MBB) {
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MachineFunction::MachineFunction(const Function *F,
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MachineFunction::MachineFunction(const Function *F,
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const TargetMachine &TM)
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const TargetMachine &TM)
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: Annotation(MF_AID), Fn(F), Target(TM) {
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: Annotation(MF_AID), Fn(F), Target(TM) {
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RegInfo = new (Allocator.Allocate<MachineRegisterInfo>())
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if (TM.getRegisterInfo())
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MachineRegisterInfo(*TM.getRegisterInfo());
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RegInfo = new (Allocator.Allocate<MachineRegisterInfo>())
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MachineRegisterInfo(*TM.getRegisterInfo());
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else
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RegInfo = 0;
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MFInfo = 0;
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MFInfo = 0;
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FrameInfo = new (Allocator.Allocate<MachineFrameInfo>())
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FrameInfo = new (Allocator.Allocate<MachineFrameInfo>())
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MachineFrameInfo(*TM.getFrameInfo());
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MachineFrameInfo(*TM.getFrameInfo());
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@ -132,7 +135,8 @@ MachineFunction::~MachineFunction() {
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BasicBlocks.clear();
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BasicBlocks.clear();
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InstructionRecycler.clear(Allocator);
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InstructionRecycler.clear(Allocator);
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BasicBlockRecycler.clear(Allocator);
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BasicBlockRecycler.clear(Allocator);
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RegInfo->~MachineRegisterInfo(); Allocator.Deallocate(RegInfo);
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if (RegInfo)
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RegInfo->~MachineRegisterInfo(); Allocator.Deallocate(RegInfo);
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if (MFInfo) {
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if (MFInfo) {
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MFInfo->~MachineFunctionInfo(); Allocator.Deallocate(MFInfo);
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MFInfo->~MachineFunctionInfo(); Allocator.Deallocate(MFInfo);
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}
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}
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@ -255,7 +259,7 @@ void MachineFunction::print(std::ostream &OS) const {
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const TargetRegisterInfo *TRI = getTarget().getRegisterInfo();
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const TargetRegisterInfo *TRI = getTarget().getRegisterInfo();
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if (!RegInfo->livein_empty()) {
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if (RegInfo && !RegInfo->livein_empty()) {
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OS << "Live Ins:";
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OS << "Live Ins:";
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for (MachineRegisterInfo::livein_iterator
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for (MachineRegisterInfo::livein_iterator
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I = RegInfo->livein_begin(), E = RegInfo->livein_end(); I != E; ++I) {
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I = RegInfo->livein_begin(), E = RegInfo->livein_end(); I != E; ++I) {
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@ -269,7 +273,7 @@ void MachineFunction::print(std::ostream &OS) const {
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}
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}
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OS << "\n";
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OS << "\n";
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}
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}
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if (!RegInfo->liveout_empty()) {
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if (RegInfo && !RegInfo->liveout_empty()) {
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OS << "Live Outs:";
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OS << "Live Outs:";
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for (MachineRegisterInfo::liveout_iterator
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for (MachineRegisterInfo::liveout_iterator
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I = RegInfo->liveout_begin(), E = RegInfo->liveout_end(); I != E; ++I)
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I = RegInfo->liveout_begin(), E = RegInfo->liveout_end(); I != E; ++I)
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