i386-common.c: Enable -freorder-blocks-and-partition at -O2 and up for x86.

2013-11-19  Teresa Johnson  <tejohnson@google.com>

	* common/config/i386/i386-common.c: Enable
	-freorder-blocks-and-partition at -O2 and up for x86.
	* doc/invoke.texi: Update -freorder-blocks-and-partition default.
	* opts.c (finish_options): Only warn if -freorder-blocks-and-
	partition was set on command line.

From-SVN: r205058

1 files changed, 12 insertions, 9 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index 89cfe5c..a31b28d 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -737,9 +737,10 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
       && opts->x_flag_reorder_blocks_and_partition
       && (ui_except == UI_SJLJ || ui_except >= UI_TARGET))
     {
-      inform (loc,
-	      "-freorder-blocks-and-partition does not work "
-	      "with exceptions on this architecture");
+      if (opts_set->x_flag_reorder_blocks_and_partition)
+        inform (loc,
+                "-freorder-blocks-and-partition does not work "
+                "with exceptions on this architecture");
       opts->x_flag_reorder_blocks_and_partition = 0;
       opts->x_flag_reorder_blocks = 1;
     }
@@ -752,9 +753,10 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
       && opts->x_flag_reorder_blocks_and_partition
       && (ui_except == UI_SJLJ || ui_except >= UI_TARGET))
     {
-      inform (loc,
-	      "-freorder-blocks-and-partition does not support "
-	      "unwind info on this architecture");
+      if (opts_set->x_flag_reorder_blocks_and_partition)
+        inform (loc,
+                "-freorder-blocks-and-partition does not support "
+                "unwind info on this architecture");
       opts->x_flag_reorder_blocks_and_partition = 0;
       opts->x_flag_reorder_blocks = 1;
     }
@@ -769,9 +771,10 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
 	      && targetm_common.unwind_tables_default
 	      && (ui_except == UI_SJLJ || ui_except >= UI_TARGET))))
     {
-      inform (loc,
-	      "-freorder-blocks-and-partition does not work "
-	      "on this architecture");
+      if (opts_set->x_flag_reorder_blocks_and_partition)
+        inform (loc,
+                "-freorder-blocks-and-partition does not work "
+                "on this architecture");
       opts->x_flag_reorder_blocks_and_partition = 0;
       opts->x_flag_reorder_blocks = 1;
     }