1 files changed, 81 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/pdp11/constraints.md b/gcc-4.9/gcc/config/pdp11/constraints.md
new file mode 100644
index 000000000..d3b67e73e
--- /dev/null
+++ b/gcc-4.9/gcc/config/pdp11/constraints.md
@@ -0,0 +1,81 @@
+;;- Constraint definitions for the pdp11 for GNU C compiler
+;; Copyright (C) 2010-2014 Free Software Foundation, Inc.
+;; Contributed by Michael K. Gschwind (mike@vlsivie.tuwien.ac.at).
+
+;; This file is part of GCC.
+
+;; GCC is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3, or (at your option)
+;; any later version.
+
+;; GCC is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GCC; see the file COPYING3.  If not see
+;; <http://www.gnu.org/licenses/>.
+
+(define_register_constraint "f" "FPU_REGS"
+  "Any FPU register")
+
+(define_register_constraint "a" "LOAD_FPU_REGS"
+  "FPU register that can be directly loaded from memory")
+
+(define_register_constraint "d" "MUL_REGS"
+  "General register that can be used for 16-bit multiply (odd numbered)")
+
+(define_constraint "I"
+  "Integer constant that fits in 16 bits unsigned"
+  (and (match_code "const_int")
+       (match_test "(ival & 0xffff0000) == 0")))
+
+(define_constraint "J"
+  "Integer constant whose low 16 bits are zero"
+  (and (match_code "const_int")
+       (match_test "(ival & 0xffff) == 0")))
+
+(define_constraint "K"
+  "Integer constant whose lower and upper 16 bit half are both non-zero"
+  (and (match_code "const_int")
+       (match_test "(ival & 0xffff) != 0 && (ival & 0xffff0000) != 0")))
+
+(define_constraint "L"
+  "Integer constant 1"
+  (and (match_code "const_int")
+       (match_test "ival == 1")))
+
+(define_constraint "M"
+  "Integer constant -1"
+  (and (match_code "const_int")
+       (match_test "ival == -1")))
+
+(define_constraint "N"
+  "Integer constant 0"
+  (and (match_code "const_int")
+       (match_test "ival == 0")))
+
+(define_constraint "O"
+  "Integer constant for which several individual shifts are better than one big one"
+  (and (match_code "const_int")
+       (match_test "abs (ival) > 1 && abs (ival) <= 4")))
+
+(define_constraint "G"
+  "Defines a real zero constant."
+  (and (match_code "const_double")
+       (match_test "op == CONST0_RTX (GET_MODE (op))")))
+
+(define_constraint "Q"
+  "Memory reference that requires an additional word after the opcode"
+  (and (match_code "mem")
+       (match_test "memory_address_p (GET_MODE (op), XEXP (op, 0))
+                    && !simple_memory_operand (op, GET_MODE (op))")))
+
+(define_constraint "R"
+  "Memory reference that is encoded within the opcode"
+  (and (match_code "mem")
+       (match_test "memory_address_p (GET_MODE (op), XEXP (op, 0))
+                    && simple_memory_operand (op, GET_MODE (op))")))
+