* config/i386/i386.md: Do not explicitly set default isa attribute.

From-SVN: r178088

gcc/config/i386/i386.md

@@ -6843,7 +6843,7 @@
   "@
    mul{<imodesuffix>}\t%2
    #"
-  [(set_attr "isa" "base,bmi2")
+  [(set_attr "isa" "*,bmi2")
    (set_attr "type" "imul,imulx")
    (set_attr "length_immediate" "0,*")
    (set (attr "athlon_decode")
@@ -9124,7 +9124,7 @@
 	return "sal{<imodesuffix>}\t{%2, %0|%0, %2}";
     }
 }
-  [(set_attr "isa" "base,base,bmi2")
+  [(set_attr "isa" "*,*,bmi2")
    (set (attr "type")
      (cond [(eq_attr "alternative" "1")
 	      (const_string "lea")
@@ -9195,7 +9195,7 @@
 	return "sal{l}\t{%2, %k0|%k0, %2}";
     }
 }
-  [(set_attr "isa" "base,base,bmi2")
+  [(set_attr "isa" "*,*,bmi2")
    (set (attr "type")
      (cond [(eq_attr "alternative" "1")
 	      (const_string "lea")
@@ -9779,7 +9779,7 @@
 	return "<shiftrt>{<imodesuffix>}\t{%2, %0|%0, %2}";
     }
 }
-  [(set_attr "isa" "base,bmi2")
+  [(set_attr "isa" "*,bmi2")
    (set_attr "type" "ishift,ishiftx")
    (set (attr "length_immediate")
      (if_then_else
@@ -9832,7 +9832,7 @@
 	return "<shiftrt>{l}\t{%2, %k0|%k0, %2}";
     }
 }
-  [(set_attr "isa" "base,bmi2")
+  [(set_attr "isa" "*,bmi2")
    (set_attr "type" "ishift,ishiftx")
    (set (attr "length_immediate")
      (if_then_else
@@ -10159,7 +10159,7 @@
 	return "<rotate>{<imodesuffix>}\t{%2, %0|%0, %2}";
     }
 }
-  [(set_attr "isa" "base,bmi2")
+  [(set_attr "isa" "*,bmi2")
    (set_attr "type" "rotate,rotatex")
    (set (attr "length_immediate")
      (if_then_else
@@ -10225,7 +10225,7 @@
 	return "<rotate>{l}\t{%2, %k0|%k0, %2}";
     }
 }
-  [(set_attr "isa" "base,bmi2")
+  [(set_attr "isa" "*,bmi2")
    (set_attr "type" "rotate,rotatex")
    (set (attr "length_immediate")
      (if_then_else