df.c and cond_exec question
Richard Henderson
rth@redhat.com
Thu Sep 23 08:48:00 GMT 2004
On Wed, Sep 22, 2004 at 04:58:05PM -0700, Steve Ellcey wrote:
> ... This causes
> problems if I expand the divide instruction sequence earlier in the GCC
> process then before because the web phase ...
Reload doesn't handle cond_exec, therefore you cannot expand to
cond_exec earlier than that.
The main issue is that any reloads needed by the instruction other
than the cond_exec conditional itself also need to be predicated.
r~
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