[NDS32] Support [$ra + $rb << 3] form for load/store address.

gcc/
	* config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
	for load/store addressing form.
	(nds32_print_operand_address): Likewise.

From-SVN: r259201

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f5273744037695d0097183e2258a42cd0979b1e4..d6c631cd59c19946f52a40973c2cdc30b0ac47a1 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
+
+       * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
+       for load/store addressing form.
+       (nds32_print_operand_address): Likewise.
+
 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
 
        PR target/85196

diff --git a/gcc/config/nds32/nds32.c b/gcc/config/nds32/nds32.c
index 030fb2e0224a22e1b3cf72bf44bc29f57ed1db2b..b4c31a4a90f5144842cd6972ad9804ba28e46920 100644 (file)
--- a/gcc/config/nds32/nds32.c
+++ b/gcc/config/nds32/nds32.c
@@ -1246,9 +1246,10 @@ nds32_legitimate_index_p (machine_mode outer_mode,
          int multiplier;
          multiplier = INTVAL (op1);
 
-         /* We only allow (mult reg const_int_1)
-            or (mult reg const_int_2) or (mult reg const_int_4).  */
-         if (multiplier != 1 && multiplier != 2 && multiplier != 4)
+         /* We only allow (mult reg const_int_1), (mult reg const_int_2),
+            (mult reg const_int_4) or (mult reg const_int_8).  */
+         if (multiplier != 1 && multiplier != 2
+             && multiplier != 4 && multiplier != 8)
            return false;
 
          regno = REGNO (op0);
@@ -1273,8 +1274,9 @@ nds32_legitimate_index_p (machine_mode outer_mode,
          sv = INTVAL (op1);
 
          /* We only allow (ashift reg const_int_0)
-            or (ashift reg const_int_1) or (ashift reg const_int_2).  */
-         if (sv != 0 && sv != 1 && sv !=2)
+            or (ashift reg const_int_1) or (ashift reg const_int_2) or
+            (ashift reg const_int_3).  */
+         if (sv != 0 && sv != 1 && sv !=2 && sv != 3)
            return false;
 
          regno = REGNO (op0);
@@ -2926,6 +2928,8 @@ nds32_print_operand_address (FILE *stream, machine_mode /*mode*/, rtx x)
            sv = 1;
          else if (INTVAL (XEXP (op0, 1)) == 4)
            sv = 2;
+         else if (INTVAL (XEXP (op0, 1)) == 8)
+           sv = 3;
          else
            gcc_unreachable ();