http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53772
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-06-26
08:52:10 UTC ---
This is a sibcall, for which we currently don't allow MEM operands:
;; Similarly, but for tail calls, in which we cannot allow memory references.
(define_special_predicate "sibcall_insn_operand"
(ior (match_test "constant_call_address_operand
(op, mode == VOIDmode ? mode : Pmode)")
(match_operand 0 "register_no_elim_operand")))
We could allow there MEMs, but only if we can prove the MEM doesn't live on the
stack below the red-zone.
