1 /* Definitions of target machine for GNU compiler
, for IBM RS
/6000.
2 Copyright (C
) 2002, 2003, 2004, 2007 Free Software Foundation
, Inc.
3 Contributed by Richard
Kenner (kenner@vlsi1.ultra.nyu.edu
)
5 This file is part of GCC.
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
3, or (at your
10 option
) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with GCC
; see the file COPYING3. If not see
19 <http
://www.gnu.org
/licenses
/>.
*/
21 /* 128-bit floating point. ABI_V4 uses IEEE quad
, AIX
/Darwin
22 adjust this in rs6000_override_options.
*/
23 FLOAT_MODE (TF
, 16, ieee_quad_format
);
25 /* PSImode is used for the XER register. The XER register
26 is not used for anything
; perhaps it should be deleted
,
27 except that that would change register numbers.
*/
28 PARTIAL_INT_MODE (SI
);
30 /* Add any extra modes needed to represent the condition code.
32 For the RS
/6000, we need separate modes when
unsigned (logical
) comparisons
33 are being done and we need a separate mode for floating
-point. We also
34 use a mode for the case when we are comparing the results of two
35 comparisons
, as then only the EQ bit is valid in the register.
*/
42 VECTOR_MODES (INT
, 8); /* V8QI V4HI V2SI
*/
43 VECTOR_MODES (INT
, 16); /* V16QI V8HI V4SI V2DI
*/
44 VECTOR_MODE (INT
, DI
, 1);
45 VECTOR_MODES (FLOAT, 8); /* V4HF V2SF
*/
46 VECTOR_MODES (FLOAT, 16); /* V8HF V4SF V2DF
*/