Add a comment explaining why this code doesn't just call

ParseMetadataValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111914 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2010-08-24 14:35:45 +00:00
parent 41d6ab4b88
commit 6826114d6e

View File

@ -1134,6 +1134,10 @@ bool LLParser::ParseInstructionMetadata(Instruction *Inst,
if (ParseToken(lltok::exclaim, "expected '!' here"))
return true;
// This code is similar to that of ParseMetadataValue, however it needs to
// have special-case code for a forward reference; see the comments on
// ForwardRefInstMetadata for details. Also, MDStrings are not supported
// at the top level here.
if (Lex.getKind() == lltok::lbrace) {
ValID ID;
if (ParseMetadataListValue(ID, PFS))