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Diffstat (limited to 'gcc-4.9/gcc/config/mmix/mmix-modes.def')
-rw-r--r-- | gcc-4.9/gcc/config/mmix/mmix-modes.def | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/mmix/mmix-modes.def b/gcc-4.9/gcc/config/mmix/mmix-modes.def new file mode 100644 index 000000000..1c5cda85b --- /dev/null +++ b/gcc-4.9/gcc/config/mmix/mmix-modes.def @@ -0,0 +1,49 @@ +/* Definitions of target machine for GNU compiler, for MMIX. + Copyright (C) 2002-2014 Free Software Foundation, Inc. + Contributed by Hans-Peter Nilsson (hp@bitrange.com) + +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/>. */ + +/* Node: Condition Code */ + +/* Like other non-CC0 ports, MMIX need to code which combination of + comparison insn and branch insn or conditional-set insn to use into the + condition mode. The CC mode depends partly on which condition is used + and partly on the type of the operands. */ + +/* The "usual" CC mode is used for a signed operands integer comparison, + where the CMP insn is used and the result is (integer) -1, 0 or 1 for + respectively a < b, a == b and a > b. */ + +/* The CC_UNS mode is for an unsigned operands integer comparison using + the CMPU insn. Result values correspond to those in CCmode. */ +CC_MODE (CC_UNS); + +/* The CC_FP mode is for a non-equality floating-point comparison, using + the FCMP or FCMPE insn. The result is (integer) -1 or 1 for + respectively a < b and a > b, otherwise 0. */ +CC_MODE (CC_FP); + +/* The CC_FPEQ mode is for an equality floating-point comparison, using + the FEQL or FEQLE insn. The result is (integer) 1 for a == b, + otherwise 0 (including NaN:s). */ +CC_MODE (CC_FPEQ); + +/* The CC_FUN mode is for an ordering comparison, using the FUN or FUNE + insn. The result is (integer) 1 if a is unordered to b, otherwise the + result is 0. */ +CC_MODE (CC_FUN); |