rs6000.c (rs6000_init_hard_regno_mode_ok): Only adjust register size for TDmode…

rs6000.c (rs6000_init_hard_regno_mode_ok): Only adjust register size for TDmode and TFmode for VSX registers.

	* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Only
	adjust register size for TDmode and TFmode for VSX registers.

From-SVN: r200853

gcc/ChangeLog

+2013-07-09  Joseph Myers  <joseph@codesourcery.com>
+
+	* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Only
+	adjust register size for TDmode and TFmode for VSX registers.
+
 2013-07-08  Kai Tietz  <ktietz@redhat.com>
 
 	PR target/56892

gcc/config/rs6000/rs6000.c

@@ -2518,7 +2518,8 @@ rs6000_init_hard_regno_mode_ok (bool global_init_p)
 	  int reg_size2 = reg_size;
 
 	  /* TFmode/TDmode always takes 2 registers, even in VSX.  */
-	  if (m == TDmode || m == TFmode)
+	  if (TARGET_VSX && VSX_REG_CLASS_P (c)
+	      && (m == TDmode || m == TFmode))
 	    reg_size2 = UNITS_PER_FP_WORD;
 
 	  rs6000_class_max_nregs[m][c]