[PATCH] D85796: [Analysis] Bug fix for exploded graph branching in evalCall for constructor
Artem Dergachev via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Wed Aug 12 22:02:40 PDT 2020
NoQ added inline comments.
================
Comment at: clang/test/Analysis/smart-ptr-text-output.cpp:39
void derefAfterRelease() {
- std::unique_ptr<A> P(new A());
+ std::unique_ptr<A> P(new A()); // expected-note {{Smart pointer 'P' is constructed}}
P.release(); // expected-note {{Smart pointer 'P' is released and set to null}}
----------------
vrnithinkumar wrote:
> NoQ wrote:
> > Ok, these notes shouldn't be there; a note on `.release()` is sufficient to understand the warning and it looks like that's one more place where we should mark the region as uninteresting.
> >
> > Can you try to debug why did they suddenly show up?
> I checked the exploded graph for this test case.
> Before the bug fix, there exists a path where the no Note Tag is added to the corresponding `CXXConstructExpr`. After the fix removed this branching theres always a Note Tag on Ctr. {F12591752}
>
> Since the note on .release() is sufficient to understand the warning and I agree we should mark this region as uninteresting.
Ok, fair enough! Let's add a FIXME.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D85796/new/
https://reviews.llvm.org/D85796
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