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Move instruction flag inference out of InstrInfoEmitter and into

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CodeGenDAGPatterns, where it can be used in other tablegen backends.
This allows the inference to be done for DAGISelEmitter so that it
gets accurate mayLoad/mayStore/isSimpleLoad flags. 

This brings MemOperand functionality back to where it was before
48329. However, it doesn't solve the problem of anonymous patterns
which expand to code that does loads or stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49123 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-04-03 00:02:49 +00:00
parent 271515a46d
commit ee4fa1977d
8 changed files with 163 additions and 152 deletions
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12
utils/TableGen/CodeGenTarget.cpp
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@ -394,20 +394,12 @@ std::vector<CodeGenIntrinsic> llvm::LoadIntrinsics(const RecordKeeper &RC) {
std::vector<CodeGenIntrinsic> Result;
// If we are in the context of a target .td file, get the target info so that
// we can decode the current intptr_t.
CodeGenTarget *CGT = 0;
if (Records.getClass("Target") &&
Records.getAllDerivedDefinitions("Target").size() == 1)
CGT = new CodeGenTarget();
for (unsigned i = 0, e = I.size(); i != e; ++i)
Result.push_back(CodeGenIntrinsic(I[i], CGT));
delete CGT;
Result.push_back(CodeGenIntrinsic(I[i]));
return Result;
}
CodeGenIntrinsic::CodeGenIntrinsic(Record *R, CodeGenTarget *CGT) {
CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
TheDef = R;
std::string DefName = R->getName();
ModRef = WriteMem;