diff --git a/gcc/config/m68k/m68k_68000_10_costs.c b/gcc/config/m68k/m68k_68000_10_costs.c
index 51277f2d07a..e37b48bd4d0 100644
--- a/gcc/config/m68k/m68k_68000_10_costs.c
+++ b/gcc/config/m68k/m68k_68000_10_costs.c
@@ -88,7 +88,13 @@ m68k_68000_10_costs (rtx x, machine_mode mode, int outer_code,
     case LE:
     case LT:
     case CC0:
+      return false;
     case ZERO_EXTRACT:
+      if (outer_code == COMPARE && GET_CODE (XEXP (x, 1)) == CONST_INT && INTVAL (XEXP (x, 1)) == 1)
+      {
+    	*total = 2;
+    	return true;
+      }
       return false;
     case POST_INC:
     case TRUNCATE:
diff --git a/gcc/config/m68k/m68k_68020_costs.c b/gcc/config/m68k/m68k_68020_costs.c
index 9504b6fcbc4..1f30a099d73 100644
--- a/gcc/config/m68k/m68k_68020_costs.c
+++ b/gcc/config/m68k/m68k_68020_costs.c
@@ -106,7 +106,10 @@ m68k_68020_costs (rtx x, machine_mode mode, int outer_code, int opno,
       return true;
     case SIGN_EXTRACT:
     case ZERO_EXTRACT:
-      *total = 8;
+      if (outer_code == COMPARE && GET_CODE (XEXP (x, 1)) == CONST_INT && INTVAL (XEXP (x, 1)) == 1)
+    	*total = 2;
+      else;
+        *total = 8;
       return true;
     case TRUNCATE:
     case ZERO_EXTEND:
diff --git a/gcc/config/m68k/m68k_68030_costs.c b/gcc/config/m68k/m68k_68030_costs.c
index 63b15f99468..10925e9e5d4 100644
--- a/gcc/config/m68k/m68k_68030_costs.c
+++ b/gcc/config/m68k/m68k_68030_costs.c
@@ -106,8 +106,11 @@ m68k_68030_costs (rtx x, machine_mode mode, int outer_code, int opno,
       return true;
     case SIGN_EXTRACT:
     case ZERO_EXTRACT:
-      *total = 10;
-      return true;
+	  if (outer_code == COMPARE && GET_CODE (XEXP (x, 1)) == CONST_INT && INTVAL (XEXP (x, 1)) == 1)
+		*total = 2;
+	  else;
+		*total = 10;
+	  return true;
     case TRUNCATE:
     case ZERO_EXTEND:
       *total = GET_MODE_SIZE(mode) > 2 ? 4 : 2;
diff --git a/gcc/config/m68k/m68k_68040_costs.c b/gcc/config/m68k/m68k_68040_costs.c
index e2dcd7992e4..1c30b24a01f 100644
--- a/gcc/config/m68k/m68k_68040_costs.c
+++ b/gcc/config/m68k/m68k_68040_costs.c
@@ -103,7 +103,10 @@ __m68k_68040_costs (rtx x, machine_mode mode, int outer_code, int opno,
       return true;
     case SIGN_EXTRACT:
     case ZERO_EXTRACT:
-      *total = 4;
+      if (outer_code == COMPARE && GET_CODE (XEXP (x, 1)) == CONST_INT && INTVAL (XEXP (x, 1)) == 1)
+      	*total = 2;
+      else;
+        *total = 4;
       return true;
     case TRUNCATE:
     case ZERO_EXTEND: