bool needsExpansion(MCInst &Inst);
- void expandInstruction(MCInst &Inst, SMLoc IDLoc,
+ // Expands assembly pseudo instructions.
+ // Returns false on success, true otherwise.
+ bool expandInstruction(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
- void expandLoadImm(MCInst &Inst, SMLoc IDLoc,
+
+ bool expandLoadImm(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
- void expandLoadAddressImm(MCInst &Inst, SMLoc IDLoc,
+
+ bool expandLoadAddressImm(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
- void expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc,
+
+ bool expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
+
void expandMemInst(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions, bool isLoad,
bool isImmOpnd);
} // if load/store
if (needsExpansion(Inst))
- expandInstruction(Inst, IDLoc, Instructions);
+ return expandInstruction(Inst, IDLoc, Instructions);
else
Instructions.push_back(Inst);
}
}
-void MipsAsmParser::expandInstruction(MCInst &Inst, SMLoc IDLoc,
+bool MipsAsmParser::expandInstruction(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions) {
switch (Inst.getOpcode()) {
+ default: assert(0 && "unimplemented expansion");
+ return true;
case Mips::LoadImm32Reg:
return expandLoadImm(Inst, IDLoc, Instructions);
case Mips::LoadAddr32Imm:
}
}
-void MipsAsmParser::expandLoadImm(MCInst &Inst, SMLoc IDLoc,
+bool MipsAsmParser::expandLoadImm(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions) {
MCInst tmpInst;
const MCOperand &ImmOp = Inst.getOperand(1);
tmpInst.setLoc(IDLoc);
Instructions.push_back(tmpInst);
}
+ return false;
}
-void
+bool
MipsAsmParser::expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions) {
MCInst tmpInst;
tmpInst.addOperand(MCOperand::CreateReg(SrcRegOp.getReg()));
Instructions.push_back(tmpInst);
}
+ return false;
}
-void
+bool
MipsAsmParser::expandLoadAddressImm(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions) {
MCInst tmpInst;
tmpInst.addOperand(MCOperand::CreateImm(ImmValue & 0xffff));
Instructions.push_back(tmpInst);
}
+ return false;
}
void MipsAsmParser::expandMemInst(MCInst &Inst, SMLoc IDLoc,