re PR rtl-optimization/44691 (ICE: RTL check: expected code 'reg', have 'plus'…

re PR rtl-optimization/44691 (ICE: RTL check: expected code 'reg', have 'plus' in rhs_regno, at rtl.h:1050)

	PR rtl-optimization/44691
	* sel-sched.c (count_occurrences_1): Also punt when SUBREG_REG
	is not a register.

From-SVN: r163369

gcc/ChangeLog

+2010-08-19  Andrey Belevantsev  <abel@ispras.ru>
+
+	PR rtl-optimization/44691
+	* sel-sched.c (count_occurrences_1): Also punt when SUBREG_REG
+	is not a register. 
+
 2010-08-19  Ian Bolton  <ian.bolton@arm.com>
 
 	PR target/45070

gcc/sel-sched.c

@@ -835,7 +835,8 @@ count_occurrences_1 (rtx *cur_rtx, void *arg)
 
   if (GET_CODE (*cur_rtx) == SUBREG
       && REG_P (p->x)
-      && REGNO (SUBREG_REG (*cur_rtx)) == REGNO (p->x))
+      && (!REG_P (SUBREG_REG (*cur_rtx))
+	  || REGNO (SUBREG_REG (*cur_rtx)) == REGNO (p->x)))
     {
       /* ??? Do not support substituting regs inside subregs.  In that case,
          simplify_subreg will be called by validate_replace_rtx, and