[Bug target/46219] Generate indirect jump instruction on x86-64

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46219

--- Comment #2 from Uros Bizjak <ubizjak at gmail dot com> 2010-10-29 08:17:17 
UTC ---
For some reason, memory operand is prohibited in a sibcall, see predicates.md:

;; Test for a valid operand for a call instruction.
(define_predicate "call_insn_operand"
  (ior (match_operand 0 "constant_call_address_operand")
       (match_operand 0 "call_register_no_elim_operand")
       (match_operand 0 "memory_operand")))

;; Similarly, but for tail calls, in which we cannot allow memory references.
(define_predicate "sibcall_insn_operand"
  (ior (match_operand 0 "constant_call_address_operand")
       (match_operand 0 "register_no_elim_operand")))