Re: PATCH RFA: PR 29286: Handle placement new aliasing issues

["Richard Guenther" <richard dot guenther at gmail dot com>]

On 11 Jun 2007 00:17:39 -0700, Ian Lance Taylor <iant@google.com> wrote:
> (By the way, one thing I saw was that I suspect tramp3d would be
> measurably faster if try_unroll_loop_completely were permitted to try
> to unroll loops with inner loops, in the case where the inner loops
> had already been completely unrolled.)

Yeah - one thing that would help a lot of C++ code would be an early
scheduled complete loop unrolling pass to get rid of these loops and
enable optimizations on them.  (Actually, apart from the zero-initialization
of vectors all of tramp3d uses template metaprogramming to unroll such
loops manually -- a very compile-time costly way :/)

Richard.