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add some helper methods to make the type more uniform.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157554 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2012-05-28 01:29:59 +00:00
parent 86208903cb
commit 2edc74aa1f
1 changed files with 17 additions and 0 deletions
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17
include/llvm/ADT/TinyPtrVector.h
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@@ -120,6 +120,14 @@ public:
return Val.template get<VecTy*>()->front();
}
EltTy back() const {
assert(!empty() && "vector empty");
if (EltTy V = Val.template dyn_cast<EltTy>())
return V;
return Val.template get<VecTy*>()->back();
}
void push_back(EltTy NewVal) {
assert(NewVal != 0 && "Can't add a null value");
@@ -139,6 +147,15 @@ public:
Val.template get<VecTy*>()->push_back(NewVal);
}
void pop_back() {
// If we have a single value, convert to empty.
if (Val.template is<EltTy>())
Val = (EltTy)0;
else if (VecTy *Vec = Val.template get<VecTy*>())
Vec->pop_back();
}
void clear() {
// If we have a single value, convert to empty.
if (Val.template is<EltTy>()) {