re PR bootstrap/48403 (bootstrap comparison failure)

	PR bootstrap/48403
	* haifa-sched.c (schedule_block): Increment cycle_issued_insns only
	if old and new states differ.

From-SVN: r172006

gcc/ChangeLog

+2011-04-05  Bernd Schmidt  <bernds@codesourcery.com>
+
+	PR bootstrap/48403
+	* haifa-sched.c (schedule_block): Increment cycle_issued_insns only
+	if old and new states differ.
+
 2011-04-05  Joseph Myers  <joseph@codesourcery.com>
 
 	* config/m68k/m68k.c (m68k_handle_option): Don't handle OPT_m5200,

gcc/haifa-sched.c

@@ -3230,9 +3230,11 @@ schedule_block (basic_block *target_bb)
 
 	  if (recog_memoized (insn) >= 0)
 	    {
+	      memcpy (temp_state, curr_state, dfa_state_size);
 	      cost = state_transition (curr_state, insn);
 	      if (!flag_sched_pressure)
 		gcc_assert (cost < 0);
+	      if (memcmp (temp_state, curr_state, dfa_state_size) != 0)
 		cycle_issued_insns++;
 	      asm_p = false;
 	    }