From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/config/microblaze/constraints.md | 72 ++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 gcc/config/microblaze/constraints.md (limited to 'gcc/config/microblaze/constraints.md') diff --git a/gcc/config/microblaze/constraints.md b/gcc/config/microblaze/constraints.md new file mode 100644 index 000000000..2abe30190 --- /dev/null +++ b/gcc/config/microblaze/constraints.md @@ -0,0 +1,72 @@ +;; Constraint definitions for Xilinx MicroBlaze processors. +;; Copyright 2010 Free Software Foundation, Inc. + +;; Contributed by Michael Eager . + +;; 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 +;; . + +(define_register_constraint "d" "GR_REGS" + "A general register.") + +(define_register_constraint "z" "ST_REGS" + "A status register.") + +;; Define integer constraints + +(define_constraint "I" + "A signed 16-bit constant." + (and (match_code "const_int") + (match_test "SMALL_OPERAND (ival)"))) + +(define_constraint "J" + "Integer zero." + (and (match_code "const_int") + (match_test "ival == 0"))) + +(define_constraint "M" + "A constant which needs two instructions to load." + (and (match_code "const_int") + (match_test "LARGE_OPERAND (ival)"))) + +(define_constraint "N" + "A constant in the range -65535 to -1 (inclusive)." + (and (match_code "const_int") + (match_test "(unsigned HOST_WIDE_INT) (ival + 0xffff) < 0xffff"))) + +(define_constraint "P" + "A constant in the range 1 to 65535 (inclusive)." + (and (match_code "const_int") + (match_test "ival > 0 && ival < 0x10000"))) + +;; Define floating point constraints + +(define_constraint "G" + "Floating-point zero." + (and (match_code "const_double") + (match_test "op == CONST0_RTX (mode)"))) + +;; Define memory constraints + +(define_memory_constraint "R" + "Memory operand which fits in single instruction." + (and (match_code "mem") + (match_test "simple_memory_operand (op, GET_MODE (op))"))) + +(define_memory_constraint "T" + "Double word operand." + (and (match_code "mem") + (match_test "double_memory_operand (op, GET_MODE (op))"))) -- cgit v1.2.3