return false;
}
+static bool needsExpandMemInst(MCInst &Inst) {
+ const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
+
+ unsigned NumOp = MCID.getNumOperands();
+ if (NumOp != 3 && NumOp != 4)
+ return false;
+
+ const MCOperandInfo &OpInfo = MCID.OpInfo[NumOp - 1];
+ if (OpInfo.OperandType != MCOI::OPERAND_MEMORY &&
+ OpInfo.OperandType != MCOI::OPERAND_UNKNOWN)
+ return false;
+
+ MCOperand &Op = Inst.getOperand(NumOp - 1);
+ if (Op.isImm()) {
+ // Offset can't exceed 16bit value.
+ return !isInt<16>(Op.getImm());
+ }
+
+ if (Op.isExpr()) {
+ const MCExpr *Expr = Op.getExpr();
+ if (Expr->getKind() != MCExpr::SymbolRef)
+ return !isEvaluated(Expr);
+
+ // Expand symbol.
+ const MCSymbolRefExpr *SR = static_cast<const MCSymbolRefExpr *>(Expr);
+ return SR->getKind() == MCSymbolRefExpr::VK_None;
+ }
+
+ return false;
+}
+
bool MipsAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc,
MCStreamer &Out,
const MCSubtargetInfo *STI) {
if ((MCID.mayLoad() || MCID.mayStore()) && !IsPCRelativeLoad) {
// Check the offset of memory operand, if it is a symbol
// reference or immediate we may have to expand instructions.
- for (unsigned i = 0; i < MCID.getNumOperands(); i++) {
- const MCOperandInfo &OpInfo = MCID.OpInfo[i];
- if ((OpInfo.OperandType == MCOI::OPERAND_MEMORY) ||
- (OpInfo.OperandType == MCOI::OPERAND_UNKNOWN)) {
- MCOperand &Op = Inst.getOperand(i);
- if (Op.isImm()) {
- if (!isInt<16>(Op.getImm())) {
- // Offset can't exceed 16bit value.
- expandMemInst(Inst, IDLoc, Out, STI, MCID.mayLoad());
- return getParser().hasPendingError();
- }
- } else if (Op.isExpr()) {
- const MCExpr *Expr = Op.getExpr();
- if (Expr->getKind() == MCExpr::SymbolRef) {
- const MCSymbolRefExpr *SR =
- static_cast<const MCSymbolRefExpr *>(Expr);
- if (SR->getKind() == MCSymbolRefExpr::VK_None) {
- // Expand symbol.
- expandMemInst(Inst, IDLoc, Out, STI, MCID.mayLoad());
- return getParser().hasPendingError();
- }
- } else if (!isEvaluated(Expr)) {
- expandMemInst(Inst, IDLoc, Out, STI, MCID.mayLoad());
- return getParser().hasPendingError();
- }
- }
- }
- } // for
- } // if load/store
+ if (needsExpandMemInst(Inst)) {
+ expandMemInst(Inst, IDLoc, Out, STI, MCID.mayLoad());
+ return getParser().hasPendingError();
+ }
+ }
if (inMicroMipsMode()) {
if (MCID.mayLoad() && Opcode != Mips::LWP_MM) {