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TableGen/OptParser: When ordering options, make "sentinel" options appear before

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everything else.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89368 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-11-19 18:22:16 +00:00
parent eeebecfcb4
commit a627ef57ec
1 changed files with 10 additions and 3 deletions
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13
utils/TableGen/OptParserEmitter.cpp
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@ -35,9 +35,16 @@ static int CompareOptionRecords(const void *Av, const void *Bv) {
const Record *A = *(Record**) Av;
const Record *B = *(Record**) Bv;
// Compare options by name first.
if (int Cmp = StrCmpOptionName(A->getValueAsString("Name").c_str(),
B->getValueAsString("Name").c_str()))
// Sentinel options preceed all others and are only ordered by precedence.
bool ASent = A->getValueAsDef("Kind")->getValueAsBit("Sentinel");
bool BSent = B->getValueAsDef("Kind")->getValueAsBit("Sentinel");
if (ASent != BSent)
return ASent ? -1 : 1;
// Compare options by name, unless they are sentinels.
if (!ASent)
if (int Cmp = StrCmpOptionName(A->getValueAsString("Name").c_str(),
B->getValueAsString("Name").c_str()))
return Cmp;
// Then by the kind precedence;