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The generated runloop shouldn't require Select to update 'Result'. In fact

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we'd like to remove result entirely.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29713 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-08-15 23:42:26 +00:00
parent 5298de51b8
commit dfb8607397
1 changed files with 6 additions and 3 deletions
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9
utils/TableGen/DAGISelEmitter.cpp
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@ -3646,8 +3646,11 @@ OS << " unsigned NumKilled = ISelKilled.size();\n";
OS << " memset(ISelQueued, 0, NumBytes);\n";
OS << " memset(ISelSelected, 0, NumBytes);\n";
OS << "\n";
OS << " SDOperand ResNode;\n";
OS << " Select(ResNode, Root);\n";
OS << " // Create a dummy node (which is not added to allnodes), that adds\n"
<< " // a reference to the root node, preventing it from being deleted,\n"
<< " // and tracking any changes of the root.\n"
<< " HandleSDNode Dummy(CurDAG->getRoot());\n"
<< " ISelQueue.push_back(CurDAG->getRoot().Val);\n";
OS << " while (!ISelQueue.empty()) {\n";
OS << " SDOperand Tmp;\n";
OS << " SDNode *Node = ISelQueue.front();\n";
@ -3663,7 +3666,7 @@ OS << " unsigned NumKilled = ISelKilled.size();\n";
OS << " ISelQueued = NULL;\n";
OS << " delete[] ISelSelected;\n";
OS << " ISelSelected = NULL;\n";
OS << " return ResNode;\n";
OS << " return Dummy.getValue();\n";
OS << "}\n";
Intrinsics = LoadIntrinsics(Records);