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/* Enable E500 support.
Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010 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
<http://www.gnu.org/licenses/>. */
#undef TARGET_SPE_ABI
#undef TARGET_SPE
#undef TARGET_E500
#undef TARGET_FPRS
#undef TARGET_E500_SINGLE
#undef TARGET_E500_DOUBLE
#undef CHECK_E500_OPTIONS
#define TARGET_SPE_ABI rs6000_spe_abi
#define TARGET_SPE rs6000_spe
#define TARGET_E500 (rs6000_cpu == PROCESSOR_PPC8540)
#define TARGET_FPRS (rs6000_float_gprs == 0)
#define TARGET_E500_SINGLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 1)
#define TARGET_E500_DOUBLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 2)
#define CHECK_E500_OPTIONS \
do { \
if (TARGET_E500 || TARGET_SPE || TARGET_SPE_ABI \
|| TARGET_E500_SINGLE || TARGET_E500_DOUBLE) \
{ \
if (TARGET_ALTIVEC) \
error ("AltiVec and E500 instructions cannot coexist"); \
if (TARGET_VSX) \
error ("VSX and E500 instructions cannot coexist"); \
if (TARGET_64BIT) \
error ("64-bit E500 not supported"); \
if (TARGET_HARD_FLOAT && TARGET_FPRS) \
error ("E500 and FPRs not supported"); \
} \
} while (0)
/* Override rs6000.h definition. */
#undef HARD_REGNO_CALLER_SAVE_MODE
/* When setting up caller-save slots (MODE == VOIDmode) ensure we
allocate space for DFmode. Save gprs in the correct mode too. */
#define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
(TARGET_E500_DOUBLE && ((MODE) == VOIDmode || (MODE) == DFmode) \
? DFmode \
: choose_hard_reg_mode ((REGNO), (NREGS), false))
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