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author | Evan Cheng <evan.cheng@apple.com> | 2006-01-06 22:19:44 +0000 |
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committer | Evan Cheng <evan.cheng@apple.com> | 2006-01-06 22:19:44 +0000 |
commit | 4a7c284b3564079b89cab1bea827f0ea78e74ffa (patch) | |
tree | 30f8ad53f5d6265dde14879de20cc23714c99263 /utils/TableGen/DAGISelEmitter.cpp | |
parent | 0114e949034dd3032599799fda9dc9d62aa60088 (diff) | |
download | external_llvm-4a7c284b3564079b89cab1bea827f0ea78e74ffa.zip external_llvm-4a7c284b3564079b89cab1bea827f0ea78e74ffa.tar.gz external_llvm-4a7c284b3564079b89cab1bea827f0ea78e74ffa.tar.bz2 |
Pattern complexity calculation fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25133 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/DAGISelEmitter.cpp')
-rw-r--r-- | utils/TableGen/DAGISelEmitter.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp index 21e5ed3..ed341db 100644 --- a/utils/TableGen/DAGISelEmitter.cpp +++ b/utils/TableGen/DAGISelEmitter.cpp @@ -1691,6 +1691,11 @@ static const ComplexPattern *NodeGetComplexPattern(TreePatternNode *N, /// patterns before small ones. This is used to determine the size of a /// pattern. static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) { + assert(isExtIntegerInVTs(P->getExtTypes()) || + isExtFloatingPointInVTs(P->getExtTypes()) || + P->getExtTypeNum(0) == MVT::isVoid || + P->getExtTypeNum(0) == MVT::Flag && + "Not a valid pattern node to size!"); unsigned Size = 2; // The node itself. // FIXME: This is a hack to statically increase the priority of patterns @@ -1700,7 +1705,7 @@ static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) { // calculate the complexity of all patterns a dag can potentially map to. const ComplexPattern *AM = NodeGetComplexPattern(P, ISE); if (AM) - Size += AM->getNumOperands(); + Size += AM->getNumOperands() * 2; // Count children in the count if they are also nodes. for (unsigned i = 0, e = P->getNumChildren(); i != e; ++i) { @@ -1708,10 +1713,10 @@ static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) { if (!Child->isLeaf() && Child->getExtTypeNum(0) != MVT::Other) Size += getPatternSize(Child, ISE); else if (Child->isLeaf()) { - Size += getPatternSize(Child, ISE); if (dynamic_cast<IntInit*>(Child->getLeafValue())) - // Matches a ConstantSDNode. More specific to any immediate. - ++Size; + Size += 3; // Matches a ConstantSDNode. + else if (NodeIsComplexPattern(Child)) + Size += getPatternSize(Child, ISE); } } |