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(store (op (load ...)), ...)

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If store's chain operand is load, then use load's chain operand instead. If
it isn't (likely a TokenFactor), then do not allow the folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25708 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2006-01-27 22:13:45 +00:00
parent 896811180f
commit c15d18c501
1 changed files with 10 additions and 3 deletions
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9
utils/TableGen/DAGISelEmitter.cpp
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@@ -1931,9 +1931,16 @@ public:
<< ".getValue(" << CInfo.getNumResults() << "))) goto P" << ".getValue(" << CInfo.getNumResults() << "))) goto P"
<< PatternNo << "Fail; // Already selected for a chain use?\n"; << PatternNo << "Fail; // Already selected for a chain use?\n";
} }
if (NodeHasChain && !FoundChain) { if (NodeHasChain) {
if (!FoundChain) {
OS << " SDOperand Chain = " << RootName << ".getOperand(0);\n"; OS << " SDOperand Chain = " << RootName << ".getOperand(0);\n";
FoundChain = true; FoundChain = true;
} else {
OS << " if (Chain.Val == " << RootName << ".Val)\n";
OS << " Chain = " << RootName << ".getOperand(0);\n";
OS << " else\n";
OS << " goto P" << PatternNo << "Fail;\n";
}
} }
} }