re PR bootstrap/41241 (bootstrap comparison failure)

2009-09-03  Vladimir Makarov  <vmakarov@redhat.com>

	PR bootstrap/41241
	* ira.c (update_equiv_reg): Remove check on class likely spill.

From-SVN: r151388

gcc/ChangeLog

+2009-09-03  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR bootstrap/41241
+	* ira.c (update_equiv_reg): Remove check on class likely spill.
+
 2009-09-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/41236

gcc/ira.c

@@ -2384,21 +2384,9 @@ update_equiv_regs (void)
 
 	  /* We only handle the case of a pseudo register being set
 	     once, or always to the same value.  */
-	  /* ??? The mn10200 port breaks if we add equivalences for
-	     values that need an ADDRESS_REGS register and set them equivalent
-	     to a MEM of a pseudo.  The actual problem is in the over-conservative
-	     handling of INPADDR_ADDRESS / INPUT_ADDRESS / INPUT triples in
-	     calculate_needs, but we traditionally work around this problem
-	     here by rejecting equivalences when the destination is in a register
-	     that's likely spilled.  This is fragile, of course, since the
-	     preferred class of a pseudo depends on all instructions that set
-	     or use it.  */
-
 	  if (!REG_P (dest)
 	      || (regno = REGNO (dest)) < FIRST_PSEUDO_REGISTER
-	      || reg_equiv[regno].init_insns == const0_rtx
-	      || (CLASS_LIKELY_SPILLED_P (reg_preferred_class (regno))
-		  && MEM_P (src) && ! reg_equiv[regno].is_arg_equivalence))
+	      || reg_equiv[regno].init_insns == const0_rtx)
 	    {
 	      /* This might be setting a SUBREG of a pseudo, a pseudo that is
 		 also set somewhere else to a constant.  */