Hint Interleave;
/// Vectorization forced
Hint Force;
- /// Array to help iterating through all hints.
- Hint *Hints[3]; // avoiding initialisation due to MSVC2012
/// Return the loop metadata prefix.
static StringRef Prefix() { return "llvm.loop."; }
Interleave("interleave.count", DisableInterleaving, HK_UNROLL),
Force("vectorize.enable", FK_Undefined, HK_FORCE),
TheLoop(L) {
- // FIXME: Move this up initialisation when MSVC requirement is 2013+
- Hints[0] = &Width;
- Hints[1] = &Interleave;
- Hints[2] = &Force;
-
// Populate values with existing loop metadata.
getHintsFromMetadata();
/// Mark the loop L as already vectorized by setting the width to 1.
void setAlreadyVectorized() {
Width.Value = Interleave.Value = 1;
- // FIXME: Change all lines below for this when we can use MSVC 2013+
- //writeHintsToMetadata({ Width, Unroll });
- std::vector<Hint> hints;
- hints.reserve(2);
- hints.emplace_back(Width);
- hints.emplace_back(Interleave);
- writeHintsToMetadata(std::move(hints));
+ Hint Hints[] = {Width, Interleave};
+ writeHintsToMetadata(Hints);
}
/// Dumps all the hint information.
if (!C) return;
unsigned Val = C->getZExtValue();
+ Hint *Hints[] = {&Width, &Interleave, &Force};
for (auto H : Hints) {
if (Name == H->Name) {
if (H->validate(Val))
/// Create a new hint from name / value pair.
MDNode *createHintMetadata(StringRef Name, unsigned V) const {
LLVMContext &Context = TheLoop->getHeader()->getContext();
- SmallVector<Value*, 2> Vals;
- Vals.push_back(MDString::get(Context, Name));
- Vals.push_back(ConstantInt::get(Type::getInt32Ty(Context), V));
+ Value *Vals[] = {MDString::get(Context, Name),
+ ConstantInt::get(Type::getInt32Ty(Context), V)};
return MDNode::get(Context, Vals);
}
/// Matches metadata with hint name.
- bool matchesHintMetadataName(MDNode *Node, std::vector<Hint> &HintTypes) {
+ bool matchesHintMetadataName(MDNode *Node, ArrayRef<Hint> HintTypes) {
MDString* Name = dyn_cast<MDString>(Node->getOperand(0));
if (!Name)
return false;
}
/// Sets current hints into loop metadata, keeping other values intact.
- void writeHintsToMetadata(std::vector<Hint> HintTypes) {
+ void writeHintsToMetadata(ArrayRef<Hint> HintTypes) {
if (HintTypes.size() == 0)
return;