The sources are available at [1]; it is written in C, not C++. I was was hoping that that something like UBSan would shed light on it, but the original question is answered: it changes optimization. The GMP developers say that they have caught some compiler bugs, but that is hard to do and time consuming.
1. https://gmplib.org > On 25 Oct 2019, at 23:38, David Blaikie <dblai...@gmail.com> wrote: > > It's hard to know if it's the compiler's fault without a test case - due to > the nature of undefined behavior and other things (implementation defined > behavior and unspecified behavior) in C++, that the program behaves as > expected with another compiler or another set of flags doesn't give a strong > indication as to where the problem is (in the code, in one of the compilers, > etc). > _______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users