re PR target/52555 (ICE unrecognizable insn with -ffast-math and __attribute__((optimize(xx))))

	PR target/52555
	* genopinit.c (raw_optab_handler): Use this_fn_optabs.
	(swap_optab_enable): Same.
	(init_all_optabs): Use argument instead of global.
	* tree.h (struct tree_optimization_option): New field
	target_optabs.
	* expr.h (init_all_optabs): Add argument to prototype.
	(TREE_OPTIMIZATION_OPTABS): New.
	(save_optabs_if_changed): Protoize.
	* optabs.h: Declare this_fn_optabs.
	* optabs.c (save_optabs_if_changed): New.
	Declare this_fn_optabs.
	(init_optabs): Add argument to init_all_optabs() call.
	* function.c (invoke_set_current_function_hook): Handle per
	function optabs.
	* function.h (struct function): New field optabs.
	* config/mips/mips.c (mips_set_mips16_mode): Handle when
	optimization_current_node has changed.
	* target-globals.h (save_target_globals_default_opts): Protoize.
	* target-globals.c (save_target_globals_default_opts): New.
c-family/
	* c-common.c (handle_optimize_attribute): Call
	save_optabs_if_changed.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r196129

1 files changed, 20 insertions, 0 deletions

diff --git a/gcc/function.c b/gcc/function.c
index 4ce2259..1b41cf2 100644
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -4400,6 +4400,26 @@ invoke_set_current_function_hook (tree fndecl)
 	}
 
       targetm.set_current_function (fndecl);
+
+      if (opts == optimization_default_node)
+	this_fn_optabs = this_target_optabs;
+      else
+	{
+	  struct function *fn = DECL_STRUCT_FUNCTION (fndecl);
+	  if (fn->optabs == NULL)
+	    {
+	      if (this_target_optabs == &default_target_optabs)
+		fn->optabs = TREE_OPTIMIZATION_OPTABS (opts);
+	      else
+		{
+		  fn->optabs = (unsigned char *)
+		    ggc_alloc_atomic (sizeof (struct target_optabs));
+		  init_all_optabs ((struct target_optabs *) fn->optabs);
+		}
+	    }
+	  this_fn_optabs = fn->optabs ? (struct target_optabs *) fn->optabs
+	                              : this_target_optabs;
+	}
     }
 }