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Use an assert to check that SelectCode isn't called on

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nodes that are already selected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58763 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-11-05 18:30:52 +00:00
parent fbcb52afdf
commit 28c04dab38
1 changed files with 4 additions and 5 deletions
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9
utils/TableGen/DAGISelEmitter.cpp
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@ -1957,13 +1957,12 @@ void DAGISelEmitter::EmitInstructionSelector(std::ostream &OS) {
OS << "// The main instruction selector code.\n"
<< "SDNode *SelectCode(SDValue N) {\n"
<< " if (N.isMachineOpcode()) {\n"
<< " return NULL; // Already selected.\n"
<< " }\n\n"
<< " MVT::SimpleValueType NVT = N.getNode()->getValueType(0).getSimpleVT();\n"
<< " switch (N.getOpcode()) {\n"
<< " default: break;\n"
<< " case ISD::EntryToken: // These leaves remain the same.\n"
<< " default:\n"
<< " assert(!N.isMachineOpcode() && \"Node already selected!\");\n"
<< " break;\n"
<< " case ISD::EntryToken: // These nodes remain the same.\n"
<< " case ISD::MEMOPERAND:\n"
<< " case ISD::BasicBlock:\n"
<< " case ISD::Register:\n"