本文整理汇总了C++中ApplySite::getReferencedFunction方法的典型用法代码示例。如果您正苦于以下问题：C++ ApplySite::getReferencedFunction方法的具体用法？C++ ApplySite::getReferencedFunction怎么用？C++ ApplySite::getReferencedFunction使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ApplySite的用法示例。
在下文中一共展示了ApplySite::getReferencedFunction方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: specializeAppliesInFunction
bool GenericSpecializer::specializeAppliesInFunction(SILFunction &F) {
DeadInstructionSet DeadApplies;
llvm::SmallSetVector<SILInstruction *, 8> Applies;
bool Changed = false;
for (auto &BB : F) {
// Collect the applies for this block in reverse order so that we
// can pop them off the end of our vector and process them in
// forward order.
for (auto It = BB.rbegin(), End = BB.rend(); It != End; ++It) {
auto *I = &*It;
// Skip non-apply instructions, apply instructions with no
// substitutions, apply instructions where we do not statically
// know the called function, and apply instructions where we do
// not have the body of the called function.
ApplySite Apply = ApplySite::isa(I);
if (!Apply || !Apply.hasSubstitutions())
continue;
auto *Callee = Apply.getReferencedFunction();
if (!Callee || !Callee->isDefinition())
continue;
Applies.insert(Apply.getInstruction());
}
// Attempt to specialize each apply we collected, deleting any
// that we do specialize (along with other instructions we clone
// in the process of doing so). We pop from the end of the list to
// avoid tricky iterator invalidation issues.
while (!Applies.empty()) {
auto *I = Applies.pop_back_val();
auto Apply = ApplySite::isa(I);
assert(Apply && "Expected an apply!");
SILFunction *Callee = Apply.getReferencedFunction();
assert(Callee && "Expected to have a known callee");
// We have a call that can potentially be specialized, so
// attempt to do so.
llvm::SmallVector<SILFunction *, 2> NewFunctions;
trySpecializeApplyOfGeneric(Apply, DeadApplies, NewFunctions);
// Remove all the now-dead applies. We must do this immediately
// rather than defer it in order to avoid problems with cloning
// dead instructions when doing recursive specialization.
while (!DeadApplies.empty()) {
auto *AI = DeadApplies.pop_back_val();
// Remove any applies we are deleting so that we don't attempt
// to specialize them.
Applies.remove(AI);
recursivelyDeleteTriviallyDeadInstructions(AI, true);
Changed = true;
}
// If calling the specialization utility resulted in new functions
// (as opposed to returning a previous specialization), we need to notify
// the pass manager so that the new functions get optimized.
for (SILFunction *NewF : reverse(NewFunctions)) {
notifyPassManagerOfFunction(NewF, Callee);
}
}
}
return Changed;
}