diff options
| -rw-r--r-- | utils/TableGen/FastISelEmitter.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/utils/TableGen/FastISelEmitter.cpp b/utils/TableGen/FastISelEmitter.cpp index 3d07405be5..6f47c633e1 100644 --- a/utils/TableGen/FastISelEmitter.cpp +++ b/utils/TableGen/FastISelEmitter.cpp @@ -259,6 +259,20 @@ void FastISelMap::CollectPatterns(CodeGenDAGPatterns &CGP) { if (II.OperandList.empty()) continue; + // For now, ignore multi-instruction patterns. + bool MultiInsts = false; + for (unsigned i = 0, e = Dst->getNumChildren(); i != e; ++i) { + TreePatternNode *ChildOp = Dst->getChild(i); + if (ChildOp->isLeaf()) + continue; + if (ChildOp->getOperator()->isSubClassOf("Instruction")) { + MultiInsts = true; + break; + } + } + if (MultiInsts) + continue; + // For now, ignore instructions where the first operand is not an // output register. const CodeGenRegisterClass *DstRC = 0; |