Explicitly disallow predication in Thumb1 assembly.
llvm-svn: 138562
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@ -2952,6 +2952,12 @@ bool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc,
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Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
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Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
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ProcessorIMod);
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ProcessorIMod);
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// In Thumb1, only the branch (B) instruction can be predicated.
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if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
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Parser.EatToEndOfStatement();
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return Error(NameLoc, "conditional execution not supported in Thumb1");
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}
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Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
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Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
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// FIXME: This is all a pretty gross hack. We should automatically handle
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// FIXME: This is all a pretty gross hack. We should automatically handle
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