diff options
Diffstat (limited to 'contrib/gcc/config/i386/i386-modes.def')
-rw-r--r-- | contrib/gcc/config/i386/i386-modes.def | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/contrib/gcc/config/i386/i386-modes.def b/contrib/gcc/config/i386/i386-modes.def index 5ef800f..89c83c4 100644 --- a/contrib/gcc/config/i386/i386-modes.def +++ b/contrib/gcc/config/i386/i386-modes.def @@ -1,23 +1,39 @@ -/* Definitions of target machine for GNU compiler for IA-32. +/* Definitions of target machine for GCC for IA-32. Copyright (C) 2002 Free Software Foundation, Inc. -This file is part of GNU CC. +This file is part of GCC. -GNU CC is free software; you can redistribute it and/or modify +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 2, or (at your option) any later version. -GNU CC is distributed in the hope that it will be useful, +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 GNU CC; see the file COPYING. If not, write to +along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +/* x86_64 ABI specifies both XF and TF modes. + XFmode is __float80 is IEEE extended; TFmode is __float128 + is IEEE quad. + + IEEE extended is 128 bits wide, except in ILP32 mode, but we + have to say it's 12 bytes so that the bitsize and wider_mode + tables are correctly set up. We correct its size below. */ + +FLOAT_MODE (XF, 12, ieee_extended_intel_96_format); +ADJUST_FLOAT_FORMAT (XF, (TARGET_128BIT_LONG_DOUBLE + ? &ieee_extended_intel_128_format + : &ieee_extended_intel_96_format)); +ADJUST_BYTESIZE (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 12); +ADJUST_ALIGNMENT (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 4); +FLOAT_MODE (TF, 16, ieee_quad_format); + /* Add any extra modes needed to represent the condition code. For the i386, we need separate modes when floating-point @@ -27,20 +43,20 @@ Boston, MA 02111-1307, USA. */ Overflow flag to be unset. Sign bit test is used instead and thus can be used to form "a&b>0" type of tests. - Add CCGC to indicate comparisons agains zero that allows + Add CCGC to indicate comparisons against zero that allows unspecified garbage in the Carry flag. This mode is used by inc/dec instructions. - Add CCGOC to indicate comparisons agains zero that allows + Add CCGOC to indicate comparisons against zero that allows unspecified garbage in the Carry and Overflow flag. This mode is used to simulate comparisons of (a-b) and (a+b) against zero using sub/cmp/add operations. Add CCZ to indicate that only the Zero flag is valid. */ -CC (CCGC) -CC (CCGOC) -CC (CCNO) -CC (CCZ) -CC (CCFP) -CC (CCFPU) +CC_MODE (CCGC); +CC_MODE (CCGOC); +CC_MODE (CCNO); +CC_MODE (CCZ); +CC_MODE (CCFP); +CC_MODE (CCFPU); |