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[Attributor][NFC] Fix comments and unnecessary comma

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This commit is contained in:
Hideto Ueno 2019-12-12 13:42:40 +00:00
parent b8b863840b
commit e7eaee28c5
2 changed files with 10 additions and 7 deletions
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4
include/llvm/Transforms/IPO/Attributor.h
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@ -1840,7 +1840,9 @@ struct DerefState : AbstractState {
/// ```
/// In that case, AccessedBytesMap is `{0:4, 4:4, 8:4, 40:4}`.
/// AccessedBytesMap is std::map so it is iterated in accending order on
/// key(Offset). So KnownBytes will be updated like this: |Access | KnownBytes
/// key(Offset). So KnownBytes will be updated like this:
///
/// |Access | KnownBytes
/// |(0, 4)| 0 -> 4
/// |(4, 4)| 4 -> 8
/// |(8, 4)| 8 -> 12

13
lib/Transforms/IPO/Attributor.cpp
View File

@ -1564,7 +1564,7 @@ struct AANoFreeFloating : AANoFreeImpl {
isa<PHINode>(UserI) || isa<SelectInst>(UserI)) {
Follow = true;
return true;
};
}
// Unknown user.
return false;
@ -3254,7 +3254,8 @@ struct AAAlignImpl : AAAlign {
bool followUse(Attributor &A, const Use *U, const Instruction *I) {
bool TrackUse = false;
unsigned int KnownAlign = getKnownAlignForUse(A, *this, getAssociatedValue(), U, I, TrackUse);
unsigned int KnownAlign =
getKnownAlignForUse(A, *this, getAssociatedValue(), U, I, TrackUse);
takeKnownMaximum(KnownAlign);
return TrackUse;
@ -3950,14 +3951,14 @@ struct AAValueSimplifyArgument final : AAValueSimplifyImpl {
// callback calls).
Value *ArgOp = ACS.getCallArgOperand(getArgNo());
if (!ArgOp)
return false;
return false;
// We can only propagate thread independent values through callbacks.
// This is different to direct/indirect call sites because for them we
// know the thread executing the caller and callee is the same. For
// callbacks this is not guaranteed, thus a thread dependent value could
// be different for the caller and callee, making it invalid to propagate.
if (ACS.isCallbackCall())
if (auto *C =dyn_cast<Constant>(ArgOp))
if (auto *C = dyn_cast<Constant>(ArgOp))
if (C->isThreadDependent())
return false;
return checkAndUpdate(A, *this, *ArgOp, SimplifiedAssociatedValue);
@ -5558,8 +5559,8 @@ void Attributor::identifyDefaultAbstractAttributes(Function &F) {
// Call site argument attribute "align".
getOrCreateAAFor<AAAlign>(CSArgPos);
// Call site argument attribute "nofree".
getOrCreateAAFor<AANoFree>(CSArgPos);
// Call site argument attribute "nofree".
getOrCreateAAFor<AANoFree>(CSArgPos);
}
}
return true;