target.def: Add code_for_* hooks.

gcc/
	* target.def: Add code_for_* hooks.
	* gentarget-def.c (def_target_insn): Add TARGET_CODE_FOR_* macros.
	* defaults.h (HAVE_tablejump, gen_tablejump): Delete.
	* target-insns.def (casesi, tablejump): New targetm instruction
	patterns.
	* expr.c (try_casesi): Use them instead of HAVE_*/gen_* interface.
	(do_tablejump): Likewise.
	* stmt.c (expand_switch_as_decision_tree_p): Likewise.
	(expand_sjlj_dispatch_table): Likewise.
	* targhooks.c (default_case_values_threshold): Likewise.

From-SVN: r225421

1 files changed, 4 insertions, 12 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index 5c0df44..87d2442 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -11058,14 +11058,6 @@ do_store_flag (sepops ops, rtx target, machine_mode mode)
 				 && !TYPE_UNSIGNED (ops->type)) ? -1 : 1);
 }
 
-
-/* Stubs in case we haven't got a casesi insn.  */
-#ifndef HAVE_casesi
-# define HAVE_casesi 0
-# define gen_casesi(a, b, c, d, e) (0)
-# define CODE_FOR_casesi CODE_FOR_nothing
-#endif
-
 /* Attempt to generate a casesi instruction.  Returns 1 if successful,
    0 otherwise (i.e. if there is no casesi instruction).
 
@@ -11080,7 +11072,7 @@ try_casesi (tree index_type, tree index_expr, tree minval, tree range,
   machine_mode index_mode = SImode;
   rtx op1, op2, index;
 
-  if (! HAVE_casesi)
+  if (! targetm.have_casesi ())
     return 0;
 
   /* Convert the index to SImode.  */
@@ -11124,7 +11116,7 @@ try_casesi (tree index_type, tree index_expr, tree minval, tree range,
   create_fixed_operand (&ops[4], (default_label
 				  ? default_label
 				  : fallback_label));
-  expand_jump_insn (CODE_FOR_casesi, 5, ops);
+  expand_jump_insn (targetm.code_for_casesi, 5, ops);
   return 1;
 }
 
@@ -11197,7 +11189,7 @@ do_tablejump (rtx index, machine_mode mode, rtx range, rtx table_label,
   vector = gen_const_mem (CASE_VECTOR_MODE, index);
   convert_move (temp, vector, 0);
 
-  emit_jump_insn (gen_tablejump (temp, table_label));
+  emit_jump_insn (targetm.gen_tablejump (temp, table_label));
 
   /* If we are generating PIC code or if the table is PC-relative, the
      table and JUMP_INSN must be adjacent, so don't output a BARRIER.  */
@@ -11211,7 +11203,7 @@ try_tablejump (tree index_type, tree index_expr, tree minval, tree range,
 {
   rtx index;
 
-  if (! HAVE_tablejump)
+  if (! targetm.have_tablejump ())
     return 0;
 
   index_expr = fold_build2 (MINUS_EXPR, index_type,