[backport gcc-4.8/trunk r195515, fixes regression from reload-subreg-1
 patch aka r190252 <mikpe@it.uu.se>]

gcc/

2013-01-28  Bernd Schmidt  <bernds@codesourcery.com>

	PR other/54814
	* reload.c (find_valid_class_1): Use in_hard_reg_set_p instead of
	TEST_HARD_REG_BIT.

--- gcc-4.7.2/gcc/reload.c.~1~	2013-02-02 12:52:35.012106110 +0100
+++ gcc-4.7.2/gcc/reload.c	2013-02-02 12:54:59.481518011 +0100
@@ -710,7 +710,7 @@ find_valid_class (enum machine_mode oute
 }
 
 /* We are trying to reload a subreg of something that is not a register.
-   Find the largest class which has at least one register valid in
+   Find the largest class which contains only registers valid in
    mode MODE.  OUTER is the mode of the subreg, DEST_CLASS the class in
    which we would eventually like to obtain the object.  */
 
@@ -730,10 +730,12 @@ find_valid_class_1 (enum machine_mode ou
     {
       int bad = 0;
       for (regno = 0; regno < FIRST_PSEUDO_REGISTER && !bad; regno++)
-	if (TEST_HARD_REG_BIT (reg_class_contents[rclass], regno)
-	    && !HARD_REGNO_MODE_OK (regno, mode))
-	  bad = 1;
-
+	{
+	  if (in_hard_reg_set_p (reg_class_contents[rclass], mode, regno)
+	      && !HARD_REGNO_MODE_OK (regno, mode))
+	    bad = 1;
+	}
+      
       if (bad)
 	continue;