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TableGen: AsmMatcher diagnostic when missing instruction mnemonic.

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Previously, if an instruction definition was missing the mnemonic,
the next line would just assert(). Issue a real diagnostic instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156263 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2012-05-06 17:33:14 +00:00
parent eb034f4af3
commit 8e27c96159
1 changed files with 3 additions and 0 deletions
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3
utils/TableGen/AsmMatcherEmitter.cpp
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@ -825,6 +825,9 @@ void MatchableInfo::tokenizeAsmString(const AsmMatcherInfo &Info) {
throw TGError(TheDef->getLoc(),
"Instruction '" + TheDef->getName() + "' has no tokens");
Mnemonic = AsmOperands[0].Token;
if (Mnemonic.empty())
throw TGError(TheDef->getLoc(),
"Missing instruction mnemonic");
// FIXME : Check and raise an error if it is a register.
if (Mnemonic[0] == '$')
throw TGError(TheDef->getLoc(),