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add helper method.

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llvm-svn: 67989
This commit is contained in:
Chris Lattner 2009-03-29 06:32:46 +00:00
parent 2c6632d760
commit 696742399a
1 changed files with 2 additions and 0 deletions
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2
include/llvm/ADT/PointerUnion.h
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@ -78,6 +78,8 @@ namespace llvm {
Val.setInt(1);
}
bool isNull() const { return Val.getPointer() == 0; }
template<typename T>
int is() const {
return Val.getInt() == ::llvm::getPointerUnionTypeNum<PT1, PT2>((T*)0);