------- Comment #1 from ubizjak at gmail dot com 2009-11-02 09:36 -------
This prototype patch should reject %esp from call operand:
Index: predicates.md
===================================================================
--- predicates.md (revision 153803)
+++ predicates.md (working copy)
@@ -561,7 +561,8 @@
;; Test for a valid operand for a call instruction.
(define_predicate "call_insn_operand"
(ior (match_operand 0 "constant_call_address_operand")
- (ior (match_operand 0 "register_no_elim_operand")
+ (ior (and (match_operand 0 "register_no_elim_operand")
+ (match_operand 0 "index_register_operand"))
(match_operand 0 "memory_operand"))))
;; Similarly, but for tail calls, in which we cannot allow memory references.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41900
