[PATCH] D30157: [analyzer] Improve valist check

[Gábor Horváth via Phabricator via cfe-commits]

xazax.hun added inline comments.


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Comment at: test/Analysis/valist-uninitialized-no-undef.c:19
+  // FIXME: There should be no warning for this.
+  (void)va_arg(*fst, int); // expected-warning{{va_arg() is called on an uninitialized va_list}} expected-note{{va_arg() is called on an uninitialized va_list}}
+  va_end(*fst);
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xazax.hun wrote:
> NoQ wrote:
> > As the patch tries to handle symbolic va_list regions, i wonder what's so particularly hard about this false positive (apart from its being obviously rare, by the way did you actually see such code?).
> What is strange, this case does work with the hexagon AST variant. 
Also, I did not see such code inproduction yet 


https://reviews.llvm.org/D30157