On 11/14/2013 10:14 PM, Andy Schneider wrote: >> consider using a free web-based e-mail account > > Done > >> Please send us a test case that we can run. > > I'm currently unable to create a test case that doesn't pull with it > a whole string of dependencies. Trivial mutations to the code result > in the issue dissapearing. Given that, I thought I'd ask the more > general question which was "is this code unsafe in gcc 4.8?". If > it's considered unsafe I can fix that code. If it's considered safe > and it's not a known issue then it's worth me spending more time > trying to construct a test case. I can't see anything immediately wrong with it. GCC knows that union members alias each other. The fact that it's not reproducable in a simple test case is an important clue that the problem may lie elsewhere. > Additionally, if there are some diagnostics that might help me debug > this type of issue, please let me know. I presume you have already turned on all the warnings you can find and fixed all the problems. Particularly -Wstrict-aliasing. Andrew.
