[PATCH] D43696: Reduce hash collisions for reference and pointer types

Vassil Vassilev via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Sat Feb 24 02:36:04 PST 2018


v.g.vassilev added inline comments.


================
Comment at: lib/AST/ODRHash.cpp:581
+  void VisitType(const Type *T) {
+    ID.AddInteger(T->getTypeClass());
+  }
----------------
rtrieu wrote:
> rsmith wrote:
> > This looks redundant, the above `Visit(const Type*)` function seems to already do this.
> That's correct, VisitType is intended to be empty.  The TypeClass enum value is added in Visit so that it is the first value added to the data stream.
Ok, then I am a little confused. If `VisitType` is supposed to be nop why we call it in all VisitXXX functions.


Repository:
  rC Clang

https://reviews.llvm.org/D43696





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