[PATCH] Fix code_helper unused argument warning for fr30

[Jan-Benedict Glaw]

Hi!

fr30 is the only target defining GO_IF_LEGITIMATE_ADDRESS right now, in
which case the `code_helper ch` argument to memory_address_addr_space_p()
is unused and emits a new warning.

gcc/ChangeLog:
        * recog.cc (memory_address_addr_space_p): Mark possibly unused
        argument as unused.

diff --git a/gcc/recog.cc b/gcc/recog.cc
index 2bff6c03e4d..92f151248a6 100644
--- a/gcc/recog.cc
+++ b/gcc/recog.cc
@@ -1803,7 +1803,7 @@ pop_operand (rtx op, machine_mode mode)
 
 bool
 memory_address_addr_space_p (machine_mode mode ATTRIBUTE_UNUSED, rtx addr,
-                            addr_space_t as, code_helper ch)
+                            addr_space_t as, code_helper ch ATTRIBUTE_UNUSED)
 {
 #ifdef GO_IF_LEGITIMATE_ADDRESS
   gcc_assert (ADDR_SPACE_GENERIC_P (as));



Ok for trunk?

Thanks,
  Jan-Benedict

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