reload.c (find_reloads): Also check that all of a multi-reg value is in the class.

* reload.c (find_reloads): Also check that all of a multi-reg
value is in the class.

From-SVN: r66366

gcc/ChangeLog

+2003-05-01  DJ Delorie  <dj@redhat.com>
+
+	* reload.c (find_reloads): Also check that all of a multi-reg
+	value is in the class.
+
 2003-05-01  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* scan.h (lineno): Revert the rename here.

gcc/reload.c

@@ -4346,8 +4346,18 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
  	if (regno < FIRST_PSEUDO_REGISTER
  	    && TEST_HARD_REG_BIT (reg_class_contents[rld[i].class], regno)
  	    && HARD_REGNO_MODE_OK (regno, rld[i].mode))
+	  {
+	    int nr = HARD_REGNO_NREGS (regno, rld[i].mode);
+	    int ok = 1, nri;
+
+	    for (nri = 1; nri < nr; nri ++)
+	      if (! TEST_HARD_REG_BIT (reg_class_contents[rld[i].class], regno + nri))
+		ok = 0;
+
+	    if (ok)
 	      rld[i].reg_rtx = dest;
 	  }
+      }
 
   return retval;
 }