rs6000.c (rs6000_handle_option): Don't fall through from -mfpu= handling.

	* config/rs6000/rs6000.c (rs6000_handle_option): Don't fall
	through from -mfpu= handling.
	* config/rs6000/rs6000.opt (mfpu=): Use Var and Init.

From-SVN: r173448

gcc/ChangeLog

+2011-05-05  Joseph Myers  <joseph@codesourcery.com>
+
+	* config/rs6000/rs6000.c (rs6000_handle_option): Don't fall
+	through from -mfpu= handling.
+	* config/rs6000/rs6000.opt (mfpu=): Use Var and Init.
+
 2011-05-05  Bernd Schmidt  <bernds@codesourcery.com>
 
 	* dwarf2out.c (dwarf2out_frame_debug_expr) [rule 10]: Handle

gcc/config/rs6000/rs6000.c

@@ -4480,7 +4480,7 @@ rs6000_handle_option (struct gcc_options *opts, struct gcc_options *opts_set,
 	  opts_set->x_target_flags |= MASK_SOFT_FLOAT;
 	  opts->x_rs6000_single_float = opts->x_rs6000_double_float = 0;
 	}
-      /* Fall through.  */
+      break;
 
     case OPT_mrecip:
       opts->x_rs6000_recip_name = (value) ? "default" : "none";

gcc/config/rs6000/rs6000.opt

@@ -492,7 +492,7 @@ Target RejectNegative Var(rs6000_simple_fpu) Save
 Floating point unit does not support divide & sqrt
 
 mfpu=
-Target RejectNegative Joined Enum(fpu_type_t)
+Target RejectNegative Joined Enum(fpu_type_t) Var(rs6000_fpu_type) Init(FPU_NONE)
 -mfpu=	Specify FP (sp, dp, sp-lite, dp-lite) (implies -mxilinx-fpu)
 
 Enum