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Explicitly disallow predication in Thumb1 assembly.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138562 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-08-25 17:23:55 +00:00
parent ebc1db0fac
commit 0c49ac05cd
1 changed files with 6 additions and 0 deletions
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6
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@ -2952,6 +2952,12 @@ bool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc,
Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
ProcessorIMod);
// In Thumb1, only the branch (B) instruction can be predicated.
if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
Parser.EatToEndOfStatement();
return Error(NameLoc, "conditional execution not supported in Thumb1");
}
Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
// FIXME: This is all a pretty gross hack. We should automatically handle