diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6d334595b277..2c47dbbde414 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2007-04-02  Anatoly Sokolov <aesok@post.ru>
+
+	PR target/31137
+	* config/avr/avr.c (avr_rtx_costs): Add missing 'break' statements.
+
 2007-04-02  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* Backport from mainline:
diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c
index 839e3546c801..b6332260fce4 100644
--- a/gcc/config/avr/avr.c
+++ b/gcc/config/avr/avr.c
@@ -5094,6 +5094,7 @@ avr_rtx_costs (rtx x, int code, int outer_code ATTRIBUTE_UNUSED, int *total)
 	    *total = COSTS_N_INSNS (AVR_MEGA ? 2 : 1);
 	  else
 	    return false;
+	  break;
 
 	case HImode:
 	  if (AVR_ENHANCED)
@@ -5102,6 +5103,7 @@ avr_rtx_costs (rtx x, int code, int outer_code ATTRIBUTE_UNUSED, int *total)
 	    *total = COSTS_N_INSNS (AVR_MEGA ? 2 : 1);
 	  else
 	    return false;
+	  break;
 
 	default:
 	  return false;