[PATCH] D153589: [NFC] Initialize pointer fields and remove a needless null check.

[Sindhu Chittireddy via Phabricator via cfe-commits]

schittir added inline comments.


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Comment at: clang/lib/Analysis/CFG.cpp:4156
   // CFG generation for unevaluated operands.
-  if (S && !S->isTypeDependent() && S->isPotentiallyEvaluated())
+  if (!S->isTypeDependent() && S->isPotentiallyEvaluated())
     return VisitChildren(S);
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erichkeane wrote:
> schittir wrote:
> > erichkeane wrote:
> > > schittir wrote:
> > > > erichkeane wrote:
> > > > > I get that we're counting on the dereference on 4145 to have made this check irrelevant, but are we sure that we KNOW that "S" is non-null here otherwise?  That is, is the bug actually 4145 doing 'alwaysAdd' without checking vs the unnecessary check here?
> > > > VisitCXXTypeidExpr is used only in one place - here https://github.com/llvm/llvm-project/blob/a89c9b35be08b665cc1a01d840bc20349ba1308f/clang/lib/Analysis/CFG.cpp#L2288 where S is not null. Null check for S already happens at the beginning of the method where VisitCXXTypeidExpr is called. 
> > > SG, an assert is perhaps not a bad idea, but LGTM.  I don't know very much about the CFG stuff, so aaron might wish to take a final look.
> > What is SG? 
> "Sounds Good"
Haha! 
Thanks for the review. 


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Comment at: clang/lib/CodeGen/CGObjCGNU.cpp:58
   /// used as arguments will necessarily be available at construction time.
-  LazyRuntimeFunction()
-      : CGM(nullptr), FunctionName(nullptr), Function(nullptr) {}
+  LazyRuntimeFunction() {}
 
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erichkeane wrote:
> schittir wrote:
> > erichkeane wrote:
> > > 
> > The comment above needs to be updated?
> I don't think so?  It still leaves the class uninitialized.
Right! Still valid. 


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D153589/new/

https://reviews.llvm.org/D153589