1/* Definitions of target machine for GNU compiler,
2   for PowerPC e500 machines running FreeBSD.
3   Based on linuxspe.h
4   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
5   Contributed by Aldy Hernandez (aldy@quesejoda.com).
6
7   This file is part of GCC.
8
9   GCC is free software; you can redistribute it and/or modify it
10   under the terms of the GNU General Public License as published
11   by the Free Software Foundation; either version 2, or (at your
12   option) any later version.
13
14   GCC is distributed in the hope that it will be useful, but WITHOUT
15   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
17   License for more details.
18
19   You should have received a copy of the GNU General Public License
20   along with GCC; see the file COPYING.  If not, write to the
21   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
22   MA 02110-1301, USA.  */
23
24#undef  TARGET_VERSION
25#define TARGET_VERSION fprintf (stderr, " (PowerPC E500 FreeBSD)");
26
27/* Override rs6000.h and sysv4.h definition.  */
28#undef	TARGET_DEFAULT
29#define	TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS | MASK_STRICT_ALIGN)
30
31#undef PROCESSOR_DEFAULT
32#undef TARGET_SPE_ABI
33#undef TARGET_SPE
34#undef TARGET_E500
35#undef TARGET_ISEL
36#undef TARGET_FPRS
37#undef TARGET_E500_SINGLE
38#undef TARGET_E500_DOUBLE
39
40#define PROCESSOR_DEFAULT PROCESSOR_PPC8540
41#define TARGET_SPE_ABI rs6000_spe_abi
42#define TARGET_SPE rs6000_spe
43#define TARGET_E500 (rs6000_cpu == PROCESSOR_PPC8540)
44#define TARGET_ISEL rs6000_isel
45#define TARGET_FPRS (rs6000_float_gprs == 0)
46#define TARGET_E500_SINGLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 1)
47#define TARGET_E500_DOUBLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 2)
48
49#undef  SUBSUBTARGET_OVERRIDE_OPTIONS
50#define SUBSUBTARGET_OVERRIDE_OPTIONS \
51  if (rs6000_select[1].string == NULL) \
52    rs6000_cpu = PROCESSOR_PPC8540; \
53  if (!rs6000_explicit_options.abi) \
54    rs6000_spe_abi = 1; \
55  if (!rs6000_explicit_options.float_gprs) \
56    rs6000_float_gprs = 1; \
57  /* See note below.  */ \
58  /*if (!rs6000_explicit_options.long_double)*/ \
59  /*  rs6000_long_double_type_size = 128;*/ \
60  if (!rs6000_explicit_options.spe) \
61    rs6000_spe = 1; \
62  if (!rs6000_explicit_options.isel) \
63    rs6000_isel = 1; \
64  if (target_flags & MASK_64BIT) \
65    error ("-m64 not supported in this configuration")
66
67/* The e500 ABI says that either long doubles are 128 bits, or if
68   implemented in any other size, the compiler/linker should error out.
69   We have no emulation libraries for 128 bit long doubles, and I hate
70   the dozens of failures on the regression suite.  So I'm breaking ABI
71   specifications, until I properly fix the emulation.
72
73   Enable these later.
74#undef CPP_LONGDOUBLE_DEFAULT_SPEC
75#define CPP_LONGDOUBLE_DEFAULT_SPEC "-D__LONG_DOUBLE_128__=1"
76*/
77
78#undef  ASM_DEFAULT_SPEC
79#define	ASM_DEFAULT_SPEC "-mppc -mspe -me500"
80