/* Definitions of target machine for GCC for IA-32. Copyright (C) 2002, 2004, 2005 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 2, 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 COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* The x86_64 ABI specifies both XF and TF modes. XFmode is __float80 is IEEE extended; TFmode is __float128 is IEEE quad. */ FRACTIONAL_FLOAT_MODE (XF, 80, 12, ieee_extended_intel_96_format); FLOAT_MODE (TF, 16, ieee_quad_format); /* In ILP32 mode, XFmode has size 12 and alignment 4. In LP64 mode, XFmode has size and alignment 16. */ ADJUST_FLOAT_FORMAT (XF, (TARGET_128BIT_LONG_DOUBLE ? &ieee_extended_intel_128_format : TARGET_96_ROUND_53_LONG_DOUBLE ? &ieee_extended_intel_96_round_53_format : &ieee_extended_intel_96_format)); ADJUST_BYTESIZE (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 12); ADJUST_ALIGNMENT (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 4); /* Add any extra modes needed to represent the condition code. For the i386, we need separate modes when floating-point equality comparisons are being done. Add CCNO to indicate comparisons against zero that requires 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 against zero that allows unspecified garbage in the Carry flag. This mode is used by inc/dec instructions. 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_MODE (CCGC); CC_MODE (CCGOC); CC_MODE (CCNO); CC_MODE (CCZ); CC_MODE (CCFP); CC_MODE (CCFPU); /* Vector modes. */ VECTOR_MODES (INT, 4); /* V4QI V2HI */ VECTOR_MODES (INT, 8); /* V8QI V4HI V2SI */ VECTOR_MODES (INT, 16); /* V16QI V8HI V4SI V2DI */ VECTOR_MODES (FLOAT, 8); /* V4HF V2SF */ VECTOR_MODES (FLOAT, 16); /* V8HF V4SF V2DF */ VECTOR_MODE (INT, DI, 4); /* V4DI */ VECTOR_MODE (INT, SI, 8); /* V8SI */ VECTOR_MODE (INT, HI, 16); /* V16HI */ VECTOR_MODE (INT, QI, 32); /* V32QI */ VECTOR_MODE (FLOAT, DF, 4); /* V4DF */ VECTOR_MODE (FLOAT, SF, 8); /* V8SF */ /* APPLE LOCAL begin 4656532 use V1DImode for _m64 */ VECTOR_MODE (INT, DI, 1); /* V1DI (__mm64) */ VECTOR_MODE (INT, SI, 1); /* V1SI */ /* APPLE LOCAL end 4656532 use V1DImode for _m64 */ /* The symbol Pmode stands for one of the above machine modes (usually SImode). The tm.h file specifies which one. It is not a distinct mode. */