1/* Definitions of target machine for GNU compiler, for IBM RS/6000. 2 Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. 3 Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it 8 under the terms of the GNU General Public License as published 9 by the Free Software Foundation; either version 2, or (at your 10 option) any later version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15 License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING. If not, write to the 19 Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22/* 128-bit floating point. ABI_V4 uses IEEE quad, AIX/Darwin 23 adjust this in rs6000_override_options. */ 24FLOAT_MODE (TF, 16, ieee_quad_format); 25 26/* PSImode is used for the XER register. The XER register 27 is not used for anything; perhaps it should be deleted, 28 except that that would change register numbers. */ 29PARTIAL_INT_MODE (SI); 30 31/* Add any extra modes needed to represent the condition code. 32 33 For the RS/6000, we need separate modes when unsigned (logical) comparisons 34 are being done and we need a separate mode for floating-point. We also 35 use a mode for the case when we are comparing the results of two 36 comparisons, as then only the EQ bit is valid in the register. */ 37 38CC_MODE (CCUNS); 39CC_MODE (CCFP); 40CC_MODE (CCEQ); 41 42/* Vector modes. */ 43VECTOR_MODES (INT, 8); /* V8QI V4HI V2SI */ 44VECTOR_MODES (INT, 16); /* V16QI V8HI V4SI V2DI */ 45VECTOR_MODE (INT, DI, 1); 46VECTOR_MODES (FLOAT, 8); /* V4HF V2SF */ 47VECTOR_MODES (FLOAT, 16); /* V8HF V4SF V2DF */ 48