Hello, Ping for http://gcc.gnu.org/ml/gcc-patches/2012-04/msg00298.html
Thanks in advance, Olivier On Apr 5, 2012, at 17:30 , Olivier Hainque wrote: ... > The original problem we had with this was the introduction of an > artificial race condition in addition to the potential performance > impact. > > We had fixed this with the attached patch, which simply forces "from" > into a REG if it is a MEM, in addition to the current condition. > While our original testcases don't expose the problem with current > versions of the compiler, the issue appears to remain latent and the > change still looks sensible in any case. ... > * expr.c (convert_move): Latch mem integer inputs into a > register before expanding a multi-instructions sequence.
