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remove dead code. This is never generated for any targets in mainline.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96332 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-02-16 06:14:22 +00:00
parent e39650a805
commit 6e6975d419
1 changed files with 0 additions and 15 deletions
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15
utils/TableGen/DAGISelEmitter.cpp
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@ -624,21 +624,6 @@ void PatternCodeEmitter::EmitMatchCode(TreePatternNode *N, TreePatternNode *P,
} }
} }
// Don't fold any node which reads or writes a flag and has multiple uses.
// FIXME: We really need to separate the concepts of flag and "glue". Those
// real flag results, e.g. X86CMP output, can have multiple uses.
// FIXME: If the optional incoming flag does not exist. Then it is ok to
// fold it.
if (!isRoot &&
(N->TreeHasProperty(SDNPInFlag, CGP) ||
N->TreeHasProperty(SDNPOptInFlag, CGP) ||
N->TreeHasProperty(SDNPOutFlag, CGP))) {
if (!EmittedUseCheck) {
// Multiple uses of actual result?
emitCheck(getValueName(RootName) + ".hasOneUse()");
}
}
// If there are node predicates for this, emit the calls. // If there are node predicates for this, emit the calls.
for (unsigned i = 0, e = N->getPredicateFns().size(); i != e; ++i) for (unsigned i = 0, e = N->getPredicateFns().size(); i != e; ++i)
emitCheck(N->getPredicateFns()[i] + "(" + getNodeName(RootName) + ")"); emitCheck(N->getPredicateFns()[i] + "(" + getNodeName(RootName) + ")");