[PATCH] RX: Restrict displacement ranges in "Q" constraint

When using the "Q" constraint in the inline assembler, the displacement value
could exceed the range specified by the instruction.
To avoid this issue, a displacement range check is added to the "Q" constraint.

gcc/
	* config/rx/constraints.md (Q): Also check that the address
	passes rx_is_restricted_memory-address.

diff --git a/gcc/config/rx/constraints.md b/gcc/config/rx/constraints.md
index 4fc242667ab4e2d623946d05df0a3be12cd0fea0..4b81ae6aa75bfe254deba7aadfdeb7c6cf718ea3 100644 (file)
--- a/gcc/config/rx/constraints.md
+++ b/gcc/config/rx/constraints.md
@@ -80,7 +80,8 @@
        (ior (match_code "reg" "0")
            (and (match_code "plus" "0")
                 (and (match_code "reg,subreg" "00")
-                     (match_code "const_int" "01")
+                     (and (match_code "const_int" "01")
+                          (match_test "rx_is_restricted_memory_address (XEXP (op, 0), mode)"))
                 )
            )
        )