+ // The reglist instructions have at most 16 registers, so reserve
+ // space for that many.
+ SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
+ // Store the first register.
+ Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
+
+ // This starts immediately after the first register token in the list,
+ // so we can see either a comma or a minus (range separator) as a legal
+ // next token.
+ while (Parser.getTok().is(AsmToken::Comma) ||
+ Parser.getTok().is(AsmToken::Minus)) {
+ if (Parser.getTok().is(AsmToken::Minus)) {
+ Parser.Lex(); // Eat the comma.
+ SMLoc EndLoc = Parser.getTok().getLoc();
+ int EndReg = tryParseRegister();
+ if (EndReg == -1)
+ return Error(EndLoc, "register expected");
+ // If the register is the same as the start reg, there's nothing
+ // more to do.
+ if (Reg == EndReg)
+ continue;
+ // The register must be in the same register class as the first.
+ if (!RC->contains(EndReg))
+ return Error(EndLoc, "invalid register in register list");
+ // Ranges must go from low to high.
+ if (getARMRegisterNumbering(Reg) > getARMRegisterNumbering(EndReg))
+ return Error(EndLoc, "bad range in register list");
+
+ // Add all the registers in the range to the register list.
+ while (Reg != EndReg) {
+ Reg = getNextRegister(Reg);
+ Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
+ }
+ continue;
+ }
+ Parser.Lex(); // Eat the comma.
+ RegLoc = Parser.getTok().getLoc();
+ int OldReg = Reg;
+ Reg = tryParseRegister();
+ if (Reg == -1)