I'm looking for a review of the patch below. The problem isn't new (it has existed since at least 4.9) but the fix seems trivial and safe. If it isn't appropriate at this stage please let me know and I'll resubmit it when stage 1 opens.
https://gcc.gnu.org/ml/gcc-patches/2016-03/msg00593.html Thanks Martin On 03/09/2016 03:09 PM, Martin Sebor wrote:
While going through constexpr bugs looking for background on one I'm currently working on I came across bug 65579 - [C++11] gcc requires definition of a static constexpr member even though it is not odr-used. The bug points out that GCC (sometimes) emits references to static constexpr data members of class templates even when they aren't odr-used. (A more detailed analysis of why this happens is in my comment #1 on the bug.) The attached rather trivial patch seems to fix the problem and (somewhat to my surprise) pass regression tests on x86_64. Martin
