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Extend 'readonly' and 'readnone' to work on function arguments as well as

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functions. Make the function attributes pass add it to known library functions
and when it can deduce it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185735 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2013-07-06 00:29:58 +00:00
parent 202eb7b18e
commit dc89737bcd
22 changed files with 547 additions and 86 deletions
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utils/TableGen/CodeGenTarget.cpp
+6
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@@ -552,6 +552,12 @@ CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
else if (Property->isSubClassOf("NoCapture")) {
unsigned ArgNo = Property->getValueAsInt("ArgNo");
ArgumentAttributes.push_back(std::make_pair(ArgNo, NoCapture));
} else if (Property->isSubClassOf("ReadOnly")) {
unsigned ArgNo = Property->getValueAsInt("ArgNo");
ArgumentAttributes.push_back(std::make_pair(ArgNo, ReadOnly));
} else if (Property->isSubClassOf("ReadNone")) {
unsigned ArgNo = Property->getValueAsInt("ArgNo");
ArgumentAttributes.push_back(std::make_pair(ArgNo, ReadNone));
} else
llvm_unreachable("Unknown property!");
}