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ARM asm parser, just issue a warning for a duplicate reg in a list.
For better 'gas' compatibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146185 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2596,6 +2596,7 @@ parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
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Parser.Lex(); // Eat the comma.
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RegLoc = Parser.getTok().getLoc();
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int OldReg = Reg;
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const AsmToken RegTok = Parser.getTok();
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Reg = tryParseRegister();
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if (Reg == -1)
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return Error(RegLoc, "register expected");
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@ -2609,8 +2610,13 @@ parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
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if (!RC->contains(Reg))
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return Error(RegLoc, "invalid register in register list");
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// List must be monotonically increasing.
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if (getARMRegisterNumbering(Reg) <= getARMRegisterNumbering(OldReg))
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if (getARMRegisterNumbering(Reg) < getARMRegisterNumbering(OldReg))
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return Error(RegLoc, "register list not in ascending order");
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if (getARMRegisterNumbering(Reg) == getARMRegisterNumbering(OldReg)) {
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Warning(RegLoc, "duplicated register (" + RegTok.getString() +
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") in register list");
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continue;
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}
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// VFP register lists must also be contiguous.
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// It's OK to use the enumeration values directly here rather, as the
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// VFP register classes have the enum sorted properly.
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