[gcc r14-1920] xtensa: Remove TARGET_MEMORY_MOVE_COST hook

[gcc r14-1920] xtensa: Remove TARGET_MEMORY_MOVE_COST hook

[Max Filippov]

https://gcc.gnu.org/g:1ce54ad8cd694a1defb9374f18607194ef702ea7

commit r14-1920-g1ce54ad8cd694a1defb9374f18607194ef702ea7
Author: Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
Date:   Sun Jun 18 16:07:12 2023 +0900

    xtensa: Remove TARGET_MEMORY_MOVE_COST hook
    
    It used to always return a constant 4, which is same as the default
    behavior, but doesn't take into account the effects of secondary
    reloads.
    
    Therefore, the implementation of this target hook is removed.
    
    gcc/ChangeLog:
    
            * config/xtensa/xtensa.cc
            (TARGET_MEMORY_MOVE_COST, xtensa_memory_move_cost): Remove.

Diff:
---
 gcc/config/xtensa/xtensa.cc | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc
index 3b5d25b660a..721c99b56a3 100644
--- a/gcc/config/xtensa/xtensa.cc
+++ b/gcc/config/xtensa/xtensa.cc
@@ -131,7 +131,6 @@ static bool xtensa_rtx_costs (rtx, machine_mode, int, int, int *, bool);
 static int xtensa_insn_cost (rtx_insn *, bool);
 static int xtensa_register_move_cost (machine_mode, reg_class_t,
 				      reg_class_t);
-static int xtensa_memory_move_cost (machine_mode, reg_class_t, bool);
 static tree xtensa_build_builtin_va_list (void);
 static bool xtensa_return_in_memory (const_tree, const_tree);
 static tree xtensa_gimplify_va_arg_expr (tree, tree, gimple_seq *,
@@ -213,8 +212,6 @@ static rtx xtensa_delegitimize_address (rtx);
 
 #undef TARGET_REGISTER_MOVE_COST
 #define TARGET_REGISTER_MOVE_COST xtensa_register_move_cost
-#undef TARGET_MEMORY_MOVE_COST
-#define TARGET_MEMORY_MOVE_COST xtensa_memory_move_cost
 #undef TARGET_RTX_COSTS
 #define TARGET_RTX_COSTS xtensa_rtx_costs
 #undef TARGET_INSN_COST
@@ -4356,16 +4353,6 @@ xtensa_register_move_cost (machine_mode mode ATTRIBUTE_UNUSED,
     return 10;
 }
 
-/* Worker function for TARGET_MEMORY_MOVE_COST.  */
-
-static int
-xtensa_memory_move_cost (machine_mode mode ATTRIBUTE_UNUSED,
-			 reg_class_t rclass ATTRIBUTE_UNUSED,
-			 bool in ATTRIBUTE_UNUSED)
-{
-  return 4;
-}
-
 /* Compute a (partial) cost for rtx X.  Return true if the complete
    cost has been computed, and false if subexpressions should be
    scanned.  In either case, *TOTAL contains the cost result.  */