1132718Skan/* Definitions of target machine for GCC for IA-32. 2169689Skan Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. 3117395Skan 4132718SkanThis file is part of GCC. 5117395Skan 6132718SkanGCC is free software; you can redistribute it and/or modify 7117395Skanit under the terms of the GNU General Public License as published by 8117395Skanthe Free Software Foundation; either version 2, or (at your option) 9117395Skanany later version. 10117395Skan 11132718SkanGCC is distributed in the hope that it will be useful, 12117395Skanbut WITHOUT ANY WARRANTY; without even the implied warranty of 13117395SkanMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14117395SkanGNU General Public License for more details. 15117395Skan 16117395SkanYou should have received a copy of the GNU General Public License 17132718Skanalong with GCC; see the file COPYING. If not, write to 18169689Skanthe Free Software Foundation, 51 Franklin Street, Fifth Floor, 19169689SkanBoston, MA 02110-1301, USA. */ 20117395Skan 21169689Skan/* The x86_64 ABI specifies both XF and TF modes. 22132718Skan XFmode is __float80 is IEEE extended; TFmode is __float128 23169689Skan is IEEE quad. */ 24132718Skan 25169689SkanFRACTIONAL_FLOAT_MODE (XF, 80, 12, ieee_extended_intel_96_format); 26169689SkanFLOAT_MODE (TF, 16, ieee_quad_format); 27132718Skan 28169689Skan/* In ILP32 mode, XFmode has size 12 and alignment 4. 29169689Skan In LP64 mode, XFmode has size and alignment 16. */ 30132718SkanADJUST_FLOAT_FORMAT (XF, (TARGET_128BIT_LONG_DOUBLE 31132718Skan ? &ieee_extended_intel_128_format 32146895Skan : TARGET_96_ROUND_53_LONG_DOUBLE 33146895Skan ? &ieee_extended_intel_96_round_53_format 34132718Skan : &ieee_extended_intel_96_format)); 35132718SkanADJUST_BYTESIZE (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 12); 36132718SkanADJUST_ALIGNMENT (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 4); 37132718Skan 38117395Skan/* Add any extra modes needed to represent the condition code. 39117395Skan 40117395Skan For the i386, we need separate modes when floating-point 41117395Skan equality comparisons are being done. 42117395Skan 43117395Skan Add CCNO to indicate comparisons against zero that requires 44117395Skan Overflow flag to be unset. Sign bit test is used instead and 45117395Skan thus can be used to form "a&b>0" type of tests. 46117395Skan 47132718Skan Add CCGC to indicate comparisons against zero that allows 48117395Skan unspecified garbage in the Carry flag. This mode is used 49117395Skan by inc/dec instructions. 50117395Skan 51132718Skan Add CCGOC to indicate comparisons against zero that allows 52117395Skan unspecified garbage in the Carry and Overflow flag. This 53117395Skan mode is used to simulate comparisons of (a-b) and (a+b) 54117395Skan against zero using sub/cmp/add operations. 55117395Skan 56117395Skan Add CCZ to indicate that only the Zero flag is valid. */ 57117395Skan 58132718SkanCC_MODE (CCGC); 59132718SkanCC_MODE (CCGOC); 60132718SkanCC_MODE (CCNO); 61132718SkanCC_MODE (CCZ); 62132718SkanCC_MODE (CCFP); 63132718SkanCC_MODE (CCFPU); 64169689Skan 65169689Skan/* Vector modes. */ 66169689SkanVECTOR_MODES (INT, 4); /* V4QI V2HI */ 67169689SkanVECTOR_MODES (INT, 8); /* V8QI V4HI V2SI */ 68169689SkanVECTOR_MODES (INT, 16); /* V16QI V8HI V4SI V2DI */ 69169689SkanVECTOR_MODES (FLOAT, 8); /* V4HF V2SF */ 70169689SkanVECTOR_MODES (FLOAT, 16); /* V8HF V4SF V2DF */ 71169689SkanVECTOR_MODE (INT, DI, 4); /* V4DI */ 72169689SkanVECTOR_MODE (INT, SI, 8); /* V8SI */ 73169689SkanVECTOR_MODE (INT, HI, 16); /* V16HI */ 74169689SkanVECTOR_MODE (INT, QI, 32); /* V32QI */ 75169689SkanVECTOR_MODE (FLOAT, DF, 4); /* V4DF */ 76169689SkanVECTOR_MODE (FLOAT, SF, 8); /* V8SF */ 77169689Skan 78169689Skan/* The symbol Pmode stands for one of the above machine modes (usually SImode). 79169689Skan The tm.h file specifies which one. It is not a distinct mode. */ 80