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Changed the TableGen created MatchInstructionImpl() setting of ErrorInfo. 

The algorithm for identifying which operand is invalid will now always point to
some operand and not the mnemonic sometimes.  The change is now that ErrorInfo
is the index of the highest operand that does not match for any of the matching
mnemonics records.  And no longer the ~0U value when the mnemonic matches and
not every record with a matching mnemonic has the same mismatching operand
index.

llvm-svn: 124734
This commit is contained in:
Kevin Enderby 2011-02-02 18:20:55 +00:00
parent 2bf67986ef
commit 96f6e379e2
1 changed files with 1 additions and 3 deletions
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4
llvm/utils/TableGen/AsmMatcherEmitter.cpp
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@ -2098,10 +2098,8 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
OS << " continue;\n";
OS << " // If this operand is broken for all of the instances of this\n";
OS << " // mnemonic, keep track of it so we can report loc info.\n";
OS << " if (it == MnemonicRange.first || ErrorInfo == i+1)\n";
OS << " if (it == MnemonicRange.first || ErrorInfo <= i+1)\n";
OS << " ErrorInfo = i+1;\n";
OS << " else\n";
OS << " ErrorInfo = ~0U;";
OS << " // Otherwise, just reject this instance of the mnemonic.\n";
OS << " OperandsValid = false;\n";
OS << " break;\n";