https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
--- Comment #221 from John Buddery <jvb at cyberscience dot com> ---
Thanks - that is neater, as it avoids the need to change the calls in ia64.c,
which gets messy.
The simplest variant I have is:
(define_insn "call_nogp"
[(call (mem:DI (match_operand:DI 0 "call_operand" "?b,s"))
(const_int 0))
(clobber (match_operand:DI 1 "register_operand" "=b,b"))]
""
{
if (TARGET_HPUX && which_alternative == 1 )
return "brl.call%+.many %1 = %0";
else
return "br.call%+.many %1 = %0";
}
[(set_attr "itanium_class" "br,scall")])
but I need to work out how to vary the attribute, as you were right: scall maps
to a "B" type attribute, but brl is an L+X instruction not a pure B unit
instruction, so I think it should be type "L".
Looks like cond and match-test are valid for attributes, so it should be
possible to get this right.
