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Add support for let expressions around an mdef. This implements a new part

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of Regression/TableGen/MultiClass.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30887 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-10-11 18:12:44 +00:00
parent f187bab7bb
commit 1ceb6c830f
1 changed files with 10 additions and 2 deletions
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12
utils/TableGen/FileParser.y
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@ -624,9 +624,9 @@ ObjectBody : ClassList {
// Delete the template arg values for the class
delete (*$1)[i].second;
}
delete $1; // Delete the class list...
delete $1; // Delete the class list.
// Process any variables on the set stack...
// Process any variables on the let stack.
for (unsigned i = 0, e = LetStack.size(); i != e; ++i)
for (unsigned j = 0, e = LetStack[i].size(); j != e; ++j)
setValue(LetStack[i][j].Name,
@ -743,6 +743,14 @@ DefMInst : DEFM ID { CurDefmPrefix = $2; } ':' SubClassRef ';' {
}
}
// If the mdef is inside a 'let' expression, add to each def.
for (unsigned i = 0, e = LetStack.size(); i != e; ++i)
for (unsigned j = 0, e = LetStack[i].size(); j != e; ++j)
setValue(LetStack[i][j].Name,
LetStack[i][j].HasBits ? &LetStack[i][j].Bits : 0,
LetStack[i][j].Value);
// Ensure redefinition doesn't happen.
if (Records.getDef(CurRec->getName())) {
err() << "def '" << CurRec->getName() << "' already defined, "