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Fix List-of-List Processing

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Fix VarListElementInit::resolveListElementReference to return a
partially resolved VarListElementInint in the case where full
resolution is not possible.  This allows TableGen to make forward
progress resolving certain complex list expressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141315 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene 2011-10-06 21:20:46 +00:00
parent 2f0722c105
commit d2b9f20b18
1 changed files with 3 additions and 1 deletions
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4
lib/TableGen/Record.cpp
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@ -1456,7 +1456,9 @@ Init *VarListElementInit:: resolveListElementReference(Record &R,
if (Result) { if (Result) {
TypedInit *TInit = dynamic_cast<TypedInit *>(Result); TypedInit *TInit = dynamic_cast<TypedInit *>(Result);
if (TInit) { if (TInit) {
return TInit->resolveListElementReference(R, RV, Elt); Init *Result2 = TInit->resolveListElementReference(R, RV, Elt);
if (Result2) return Result2;
return new VarListElementInit(TInit, Elt);
} }
return Result; return Result;
} }