i386.c (ia32_multipass_dfa_lookahead): Add case for Atom processor.

        * config/i386/i386.c (ia32_multipass_dfa_lookahead) : Add
        case for Atom processor.

From-SVN: r190649

gcc/ChangeLog

+2012-08-24  Yuri Rumyantsev  <ysrumyan@gmail.com>
+
+	* config/i386/i386.c (ia32_multipass_dfa_lookahead) : Add
+	case for Atom processor.
+
 2012-08-24  Simon Baldwin  <simonb@google.com>
 
 	* dwarf2out.c (gen_producer_string): Omit command line switch if

gcc/config/i386/i386.c

@@ -24123,6 +24123,7 @@ ia32_multipass_dfa_lookahead (void)
     case PROCESSOR_CORE2_64:
     case PROCESSOR_COREI7_32:
     case PROCESSOR_COREI7_64:
+    case PROCESSOR_ATOM:
       /* Generally, we want haifa-sched:max_issue() to look ahead as far
 	 as many instructions can be executed on a cycle, i.e.,
 	 issue_rate.  I wonder why tuning for many CPUs does not do this.  */