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Re: [PATCH v2 9/10] Tilera (and Linux asm-generic) support for glibc
On Fri, Nov 11, 2011 at 12:13 PM, Chris Metcalf <email@example.com> wrote:
> I'm cc'ing the gcc mailing list with this reply, so if someone there
> can provide an authoritative statement, that would be great. ÂIt looks
> like right now the i386/x86_64, ia64, and s390 architecture don't use
> this header anyway, so it's less important for them. ÂBut powerpc and
> sparc do use the header (in the core glibc), and most of the
> architectures in the "ports" part of glibc do as well.
> Roland, Joseph, if we don't hear something definitive from the gcc
> folks, I'm inclined to revert this piece back to what I had in the v1
> patch, where I provide a tile-specific byteswap.h using
> __builtin_bswapNN(), so our gcc 4.4 will generate good code.
Right now it does not emit good code for MIPS 32/64 R2. Though I have
patches to emit better code for that target.