}
}
assert(Move);
-
- const MachineLocation &Dst = Move->getDestination();
- const MachineLocation &Src = Move->getSource();
- const TargetAsmInfo &AsmInfo = OutContext.getTargetAsmInfo();
- if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) {
- if (Src.getReg() == MachineLocation::VirtualFP)
- OutStreamer.EmitCFIDefCfaOffset(-Src.getOffset());
- else {
- unsigned Reg = AsmInfo.getDwarfRegNum(Src.getReg(), true);
- OutStreamer.EmitCFIDefCfa(Reg, -Src.getOffset());
- }
- } else if (Src.isReg() && Src.getReg() == MachineLocation::VirtualFP) {
- unsigned Reg = AsmInfo.getDwarfRegNum(Dst.getReg(), true);
- OutStreamer.EmitCFIDefCfaRegister(Reg);
- } else {
- unsigned Reg = AsmInfo.getDwarfRegNum(Src.getReg(), true);
- OutStreamer.EmitCFIOffset(Reg, -Dst.getOffset());
- }
+ EmitCFIFrameMove(*Move);
}
/// EmitFunctionBody - This method emits the body and trailer for a
}
}
+/// EmitFrameMoves - Emit a frame instruction.
+void AsmPrinter::EmitCFIFrameMove(const MachineMove &Move) const {
+ const TargetRegisterInfo *RI = TM.getRegisterInfo();
+
+ const MachineLocation &Dst = Move.getDestination();
+ const MachineLocation &Src = Move.getSource();
+
+ // If advancing cfa.
+ if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) {
+ assert(!Src.isReg() && "Machine move not supported yet.");
+
+ if (Src.getReg() == MachineLocation::VirtualFP) {
+ OutStreamer.EmitCFIDefCfaOffset(-Src.getOffset());
+ } else {
+ assert("Machine move not supported yet");
+ // Reg + Offset
+ }
+ } else if (Src.isReg() && Src.getReg() == MachineLocation::VirtualFP) {
+ assert(Dst.isReg() && "Machine move not supported yet.");
+ OutStreamer.EmitCFIDefCfaRegister(RI->getDwarfRegNum(Dst.getReg(), true));
+ } else {
+ assert(!Dst.isReg() && "Machine move not supported yet.");
+ OutStreamer.EmitCFIOffset(RI->getDwarfRegNum(Src.getReg(), true),
+ -Dst.getOffset());
+ }
+}
+
/// EmitFrameMoves - Emit frame instructions to describe the layout of the
/// frame.
void AsmPrinter::EmitCFIFrameMoves(const std::vector<MachineMove> &Moves) const {
- const TargetRegisterInfo *RI = TM.getRegisterInfo();
-
for (unsigned i = 0, N = Moves.size(); i < N; ++i) {
const MachineMove &Move = Moves[i];
MCSymbol *Label = Move.getLabel();
// Throw out move if the label is invalid.
if (Label && !Label->isDefined()) continue; // Not emitted, in dead code.
- const MachineLocation &Dst = Move.getDestination();
- const MachineLocation &Src = Move.getSource();
-
- // If advancing cfa.
- if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) {
- assert(!Src.isReg() && "Machine move not supported yet.");
-
- if (Src.getReg() == MachineLocation::VirtualFP) {
- OutStreamer.EmitCFIDefCfaOffset(-Src.getOffset());
- } else {
- assert("Machine move not supported yet");
- // Reg + Offset
- }
- } else if (Src.isReg() && Src.getReg() == MachineLocation::VirtualFP) {
- assert(Dst.isReg() && "Machine move not supported yet.");
- OutStreamer.EmitCFIDefCfaRegister(RI->getDwarfRegNum(Dst.getReg(), true));
- } else {
- assert(!Dst.isReg() && "Machine move not supported yet.");
- OutStreamer.EmitCFIOffset(RI->getDwarfRegNum(Src.getReg(), true),
- Dst.getOffset());
- }
+ EmitCFIFrameMove(Move);
}
}