H.J. Lu wrote:
On Tue, Dec 10, 2013 at 9:04 AM, Kirill Yukhin <kirill.yuk...@gmail.com> wrote:
On 10 Dec 08:23, H.J. Lu wrote:
What is wrong to pass the correct offset to
CANNOT_CHANGE_MODE_CLASS? Backends are free to
ignore it.
Yes, but as fas as understand this hook as a predicate
saying if it not-safe to change mode1 to mode2 for given
In many places, the macro is used with the known offset.
I have a follow up patch which improves x86 code generation,
in cases like:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45198
What is it that subreg_get_info () can't resolve that CANNOT_CHANGE_MODE_CLASS
with an offset can?
Thanks,
Tejas.
register class. I don't think that offsets should be
involved here. IMHO it is safe to change V4SF->SF
for SSE/AVX register...
