[PATCH] D28955: [analyzer] Enable support for symbolic extension/truncation

Artem Dergachev via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Sat Jan 21 12:25:57 PST 2017

NoQ added a comment.

In https://reviews.llvm.org/D28955#652443, @ddcc wrote:

> When I was testing this patch, it was on top of both https://reviews.llvm.org/D28952 and https://reviews.llvm.org/D28953. For `malloc.c`, the change on line 1708 from `int` to `size_t` is necessary to prevent a false positive warning at line 1710.

We should have expected-warning on 64-bit targets (where `size_t` easily overflows `int`) and no-warning on 32-bit targets (where they are of the same size and the fix for the original issue https://llvm.org/bugs/show_bug.cgi?id=16558 applies). I think we should have two run-lines for this test, with two concrete targets specified; it'd be great to actually have other tests in this file undergo such trial.


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