arc: Fixes for RTL checking

	* config/arc/arc.c (arc_ccfsm_advance): Only take the PATTERN of
	this_insn if it is an INSN or JUMP_INSN.
	(force_offsettable): Look at base, not at addr.
	* config/arc/predicates.md (brcc_nolimm_operator): Don't call INTVAL
	on things that aren' necessarily CONST_INTs.

From-SVN: r245720

gcc/ChangeLog

+2017-02-24  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* config/arc/arc.c (arc_ccfsm_advance): Only take the PATTERN of
+	this_insn if it is an INSN or JUMP_INSN.
+	(force_offsettable): Look at base, not at addr.
+	* config/arc/predicates.md (brcc_nolimm_operator): Don't call INTVAL
+	on things that aren't necessarily CONST_INTs.
+
 2017-02-24  Uros Bizjak  <ubizjak@gmail.com>
 
 	* doc/invoke.texi (x86 Options, -mfpmath=sse): Mention that

gcc/config/arc/arc.c

@@ -3832,8 +3832,6 @@ arc_ccfsm_advance (rtx_insn *insn, struct arc_ccfsm *state)
 	      break;
 	    }
 
-	  scanbody = PATTERN (this_insn);
-
 	  switch (GET_CODE (this_insn))
 	    {
 	    case CODE_LABEL:
@@ -3868,6 +3866,8 @@ arc_ccfsm_advance (rtx_insn *insn, struct arc_ccfsm *state)
 	      break;
 
 	    case JUMP_INSN:
+	      scanbody = PATTERN (this_insn);
+
 	      /* If this is an unconditional branch to the same label, succeed.
 		 If it is to another label, do nothing.  If it is conditional,
 		 fail.  */
@@ -3902,6 +3902,8 @@ arc_ccfsm_advance (rtx_insn *insn, struct arc_ccfsm *state)
 	      break;
 
 	    case INSN:
+	      scanbody = PATTERN (this_insn);
+
 	      /* We can only do this with insns that can use the condition
 		 codes (and don't set them).  */
 	      if (GET_CODE (scanbody) == SET
@@ -7401,7 +7403,7 @@ force_offsettable (rtx addr, HOST_WIDE_INT size, bool reuse)
     }
   if (!REG_P (base)
       || (REGNO (base) != STACK_POINTER_REGNUM
-	  && REGNO_PTR_FRAME_P (REGNO (addr)))
+	  && REGNO_PTR_FRAME_P (REGNO (base)))
       || !CONST_INT_P (offs) || !SMALL_INT (INTVAL (offs))
       || !SMALL_INT (INTVAL (offs) + size))
     {

gcc/config/arc/predicates.md

@@ -458,8 +458,10 @@
 (define_predicate "brcc_nolimm_operator"
   (ior (match_test "REG_P (XEXP (op, 1))")
        (and (match_code "eq, ne, lt, ge, ltu, geu")
+	    (match_test "CONST_INT_P (XEXP (op, 1))")
 	    (match_test "u6_immediate_operand (XEXP (op, 1), SImode)"))
        (and (match_code "le, gt, leu, gtu")
+	    (match_test "CONST_INT_P (XEXP (op, 1))")
 	    (match_test "UNSIGNED_INT6 (INTVAL (XEXP (op, 1)) + 1)"))))
 
 ;; Return TRUE if this is the condition code register, if we aren't given