loop.c (check_dbra_loop): Use gen_int_mode instead of GEN_INT for start_value when...

	* loop.c (check_dbra_loop): Use gen_int_mode instead of GEN_INT
	for start_value when it is directly moved into reg, and factorize
	the retrieval of GET_MODE (reg).

From-SVN: r77803

1 files changed, 5 insertions, 4 deletions

diff --git a/gcc/loop.c b/gcc/loop.c
index 911d561..b09708d 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -8015,6 +8015,7 @@ check_dbra_loop (struct loop *loop, int insn_count)
   struct loop_ivs *ivs = LOOP_IVS (loop);
   struct iv_class *bl;
   rtx reg;
+  enum machine_mode mode;
   rtx jump_label;
   rtx final_value;
   rtx start_value;
@@ -8435,6 +8436,7 @@ check_dbra_loop (struct loop *loop, int insn_count)
 
 	      /* Save some info needed to produce the new insns.  */
 	      reg = bl->biv->dest_reg;
+	      mode = GET_MODE (reg);
 	      jump_label = condjump_label (PREV_INSN (loop_end));
 	      new_add_val = GEN_INT (-INTVAL (bl->biv->add_val));
 
@@ -8446,12 +8448,12 @@ check_dbra_loop (struct loop *loop, int insn_count)
 	      if (initial_value == const0_rtx
 		  && GET_CODE (comparison_value) == CONST_INT)
 		{
-		  start_value = GEN_INT (comparison_val - add_adjust);
+		  start_value
+		    = gen_int_mode (comparison_val - add_adjust, mode);
 		  loop_insn_hoist (loop, gen_move_insn (reg, start_value));
 		}
 	      else if (GET_CODE (initial_value) == CONST_INT)
 		{
-		  enum machine_mode mode = GET_MODE (reg);
 		  rtx offset = GEN_INT (-INTVAL (initial_value) - add_adjust);
 		  rtx add_insn = gen_add3_insn (reg, comparison_value, offset);
 
@@ -8467,7 +8469,6 @@ check_dbra_loop (struct loop *loop, int insn_count)
 		}
 	      else if (! add_adjust)
 		{
-		  enum machine_mode mode = GET_MODE (reg);
 		  rtx sub_insn = gen_sub3_insn (reg, comparison_value,
 						initial_value);
 
@@ -8525,7 +8526,7 @@ check_dbra_loop (struct loop *loop, int insn_count)
 	      /* Add new compare/branch insn at end of loop.  */
 	      start_sequence ();
 	      emit_cmp_and_jump_insns (reg, const0_rtx, cmp_code, NULL_RTX,
-				       GET_MODE (reg), 0,
+				       mode, 0,
 				       XEXP (jump_label, 0));
 	      tem = get_insns ();
 	      end_sequence ();