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/mcore/constraints.md | 112 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 gcc/config/mcore/constraints.md (limited to 'gcc/config/mcore/constraints.md') diff --git a/gcc/config/mcore/constraints.md b/gcc/config/mcore/constraints.md new file mode 100644 index 000000000..dee980775 --- /dev/null +++ b/gcc/config/mcore/constraints.md @@ -0,0 +1,112 @@ +;; Constraint definitions for the Motorola MCore +;; Copyright (C) 2011 +;; Free Software Foundation, Inc. + +;; 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 +;; . + +;; Register constraints. +(define_register_constraint "a" "LRW_REGS" + "@internal") + +(define_register_constraint "b" "ONLYR1_REGS" + "@internal") + +(define_register_constraint "c" "C_REGS" + "@internal") + +(define_register_constraint "x" "ALL_REGS" + "@internal") + +;; Integer constraints. +(define_constraint "I" + "An integer in the range 0 to 127." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, 0, 127)"))) + +(define_constraint "J" + "An integer in the range 1 to 32." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, 1, 32)"))) + +(define_constraint "K" + "A shift operand, an integer in the range 0 to 31." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, 0, 31)"))) + +(define_constraint "L" + "A negative arithmetic operand in the range -32 to -1." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, -32, -1)"))) + +(define_constraint "M" + "A constant loadable by bgeni." + (and (match_code "const_int") + (match_test "exact_log2 (ival) >= 0 && exact_log2 (ival) <= 30"))) + +(define_constraint "N" + "A constant loadable by bmaskii, including -1." + (and (match_code "const_int") + (ior (match_test "ival == -1") + (and (match_test "exact_log2 (ival + 1) >= 0") + (match_test "exact_log2 (ival + 1) <= 30"))))) + +(define_constraint "O" + "A constant allowed by cmov with two constants +/- 1 of each other." + (and (match_code "const_int") + (ior (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_I)") + (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_M)") + (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_N)") + (match_test "insn_const_int_ok_for_constraint (ival - 1, CONSTRAINT_M)") + (match_test "insn_const_int_ok_for_constraint (ival + 1, CONSTRAINT_N)")))) + +(define_constraint "P" + "A value that can be generated without an lrw instruction." + (and (match_code "const_int") + (match_test "mcore_const_ok_for_inline (ival)"))) + +;; Floating-point constraints. +(define_constraint "G" + "@internal" + (and (match_code "const_double") + (match_test "insn_const_int_ok_for_constraint (hval, CONSTRAINT_I)") + (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_I)"))) + +;; Other constraints. +(define_constraint "Q" + "The integer constant one." + (and (match_code "const_int") + (match_test "ival == 1"))) + +(define_constraint "R" + "@internal" + (and (match_code "mem") + (match_test "GET_CODE (XEXP (op, 0)) == LABEL_REF"))) + +(define_constraint "S" + "An integer constant with 0, 1, or 2 bits clear." + (and (match_code "const_int") + (match_test "mcore_num_zeros (ival) <= 2"))) + +(define_constraint "T" + "An integer constant with 2 set bits." + (and (match_code "const_int") + (match_test "mcore_num_ones (ival) == 2"))) + +(define_constraint "U" + "The integer constant zero." + (and (match_code "const_int") + (match_test "ival == 0"))) -- cgit v1.2.3