Add a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109565 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2010-07-28 00:21:18 +00:00
parent 9a65dc9968
commit f374ba2bcd

View File

@ -523,6 +523,8 @@ namespace llvm {
class SCEVUnknown : public SCEV {
friend class ScalarEvolution;
// This should be an AssertingVH, however SCEVUnknowns are allocated in a
// BumpPtrAllocator so their destructors are never called.
Value *V;
SCEVUnknown(const FoldingSetNodeIDRef ID, Value *v) :
SCEV(ID, scUnknown), V(v) {}