re PR target/58115 (testcase gcc.target/i386/intrinsics_4.c failure)

gcc/
	PR target/58115
	* target-globals.c (save_target_globals): Remove this_fn_optab
	handling.
	* toplev.c: Include optabs.h.
	(target_reinit): Temporarily restore the global options if another
	set of options are in force.

gcc/testsuite/
	* gcc.target/i386/intrinsics_4.c (bar): New function.

From-SVN: r206394

gcc/ChangeLog

+2014-01-07  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	PR target/58115
+	* target-globals.c (save_target_globals): Remove this_fn_optab
+	handling.
+	* toplev.c: Include optabs.h.
+	(target_reinit): Temporarily restore the global options if another
+	set of options are in force.
+
 2014-01-07  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/58668

gcc/target-globals.c

@@ -68,7 +68,6 @@ struct target_globals *
 save_target_globals (void)
 {
   struct target_globals *g;
-  struct target_optabs *saved_this_fn_optabs = this_fn_optabs;
 
   g = ggc_alloc_target_globals ();
   g->flag_state = XCNEW (struct target_flag_state);
@@ -88,10 +87,8 @@ save_target_globals (void)
   g->bb_reorder = XCNEW (struct target_bb_reorder);
   g->lower_subreg = XCNEW (struct target_lower_subreg);
   restore_target_globals (g);
-  this_fn_optabs = this_target_optabs;
   init_reg_sets ();
   target_reinit ();
-  this_fn_optabs = saved_this_fn_optabs;
   return g;
 }
 

gcc/testsuite/ChangeLog

+2014-01-07  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	* gcc.target/i386/intrinsics_4.c (bar): New function.
+
 2014-01-07  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* g++.dg/ext/is_base_of_incomplete-2.C: New.

gcc/testsuite/gcc.target/i386/intrinsics_4.c

@@ -12,3 +12,10 @@ foo (void)
 {
   a[0] = _mm256_and_ps (b[0], c[0]);
 }
+
+/* Try again with a combination of target and optimization attributes.  */
+void __attribute__((target ("avx"), optimize(3)))
+bar (void)
+{
+  a[0] = _mm256_and_ps (b[0], c[0]);
+}

gcc/toplev.c

@@ -78,6 +78,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "diagnostic-color.h"
 #include "context.h"
 #include "pass_manager.h"
+#include "optabs.h"
 
 #if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO)
 #include "dbxout.h"
@@ -1752,6 +1753,23 @@ target_reinit (void)
 {
   struct rtl_data saved_x_rtl;
   rtx *saved_regno_reg_rtx;
+  tree saved_optimization_current_node;
+  struct target_optabs *saved_this_fn_optabs;
+
+  /* Temporarily switch to the default optimization node, so that
+     *this_target_optabs is set to the default, not reflecting
+     whatever a previous function used for the optimize
+     attribute.  */
+  saved_optimization_current_node = optimization_current_node;
+  saved_this_fn_optabs = this_fn_optabs;
+  if (saved_optimization_current_node != optimization_default_node)
+    {
+      optimization_current_node = optimization_default_node;
+      cl_optimization_restore
+	(&global_options,
+	 TREE_OPTIMIZATION (optimization_default_node));
+    }
+  this_fn_optabs = this_target_optabs;
 
   /* Save *crtl and regno_reg_rtx around the reinitialization
      to allow target_reinit being called even after prepare_function_start.  */
@@ -1769,7 +1787,16 @@ target_reinit (void)
   /* Reinitialize lang-dependent parts.  */
   lang_dependent_init_target ();
 
-  /* And restore it at the end, as free_after_compilation from
+  /* Restore the original optimization node.  */
+  if (saved_optimization_current_node != optimization_default_node)
+    {
+      optimization_current_node = saved_optimization_current_node;
+      cl_optimization_restore (&global_options,
+			       TREE_OPTIMIZATION (optimization_current_node));
+    }
+  this_fn_optabs = saved_this_fn_optabs;
+
+  /* Restore regno_reg_rtx at the end, as free_after_compilation from
      expand_dummy_function_end clears it.  */
   if (saved_regno_reg_rtx)
     {