Peter Zijlstra <pet...@infradead.org> writes: > On Thu, May 29, 2014 at 04:56:45PM +0930, Rusty Russell wrote: >> Before: >> gcc 4.8.2: virtio_blk: stack used = 392 >> gcc 4.6.4: virtio_blk: stack used = 480 >> >> After: >> gcc 4.8.2: virtio_blk: stack used = 408 >> gcc 4.6.4: virtio_blk: stack used = 432 > > Is it worth it to make the good compiler worse? People are going to use > the newer GCC more as time goes on anyhow.
No, but it's only 16 bytes of stack loss for a simplicity win: virtio_ring.c | 120 +++++++++++++++++++++------------------------------------- 1 file changed, 45 insertions(+), 75 deletions(-) Cheers, Rusty. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
