toplev.c (flag_rounding_math): New global variable.

	* toplev.c (flag_rounding_math): New global variable.
	(f_options): Add to the list of language independent options.
	* flags.h (flag_rounding_math): Prototype here.
	(HONOR_SIGN_DEPENDENT_ROUNDING): Use flag_rounding_math instead.
	* common.opt (frounding-math): New common command line option.
	* opts.c (common_handle_option): Handle OPT_frounding_math.
	(set_fast_math_flags): -ffast-math clears flag_rounding_math.

	* doc/invoke.texi: Document this new command line option.

From-SVN: r71032

1 files changed, 9 insertions, 2 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index 24741da..fe8d28f 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -1220,8 +1220,12 @@ common_handle_option (size_t scode, const char *arg,
       flag_rerun_loop_opt = value;
       break;
 
+    case OPT_frounding_math:
+      flag_rounding_math = value;
+      break;
+
     case OPT_fsched_interblock:
-      flag_schedule_interblock= value;
+      flag_schedule_interblock = value;
       break;
 
     case OPT_fsched_spec:
@@ -1547,7 +1551,10 @@ set_fast_math_flags (int set)
   flag_finite_math_only = set;
   flag_errno_math = !set;
   if (set)
-    flag_signaling_nans = 0;
+    {
+      flag_signaling_nans = 0;
+      flag_rounding_math = 0;
+    }
 }
 
 /* Return true iff flags are set as if -ffast-math.  */