Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/i386/i386-modes.def @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | 04ced10e8804 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of target machine for GCC for IA-32. |
| 131 | 2 Copyright (C) 2002-2018 Free Software Foundation, Inc. |
| 0 | 3 |
| 4 This file is part of GCC. | |
| 5 | |
| 6 GCC is free software; you can redistribute it and/or modify | |
| 7 it under the terms of the GNU General Public License as published by | |
| 8 the Free Software Foundation; either version 3, or (at your option) | |
| 9 any later version. | |
| 10 | |
| 11 GCC is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 GNU General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with GCC; see the file COPYING3. If not see | |
| 18 <http://www.gnu.org/licenses/>. */ | |
| 19 | |
| 20 /* The x86_64 ABI specifies both XF and TF modes. | |
| 21 XFmode is __float80 is IEEE extended; TFmode is __float128 | |
| 22 is IEEE quad. */ | |
| 23 | |
| 24 FRACTIONAL_FLOAT_MODE (XF, 80, 12, ieee_extended_intel_96_format); | |
| 25 FLOAT_MODE (TF, 16, ieee_quad_format); | |
| 26 | |
| 27 /* In ILP32 mode, XFmode has size 12 and alignment 4. | |
| 28 In LP64 mode, XFmode has size and alignment 16. */ | |
| 29 ADJUST_FLOAT_FORMAT (XF, (TARGET_128BIT_LONG_DOUBLE | |
| 30 ? &ieee_extended_intel_128_format | |
| 31 : TARGET_96_ROUND_53_LONG_DOUBLE | |
| 32 ? &ieee_extended_intel_96_round_53_format | |
| 33 : &ieee_extended_intel_96_format)); | |
| 34 ADJUST_BYTESIZE (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 12); | |
| 35 ADJUST_ALIGNMENT (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 4); | |
| 36 | |
| 37 /* Add any extra modes needed to represent the condition code. | |
| 38 | |
| 39 For the i386, we need separate modes when floating-point | |
| 40 equality comparisons are being done. | |
| 41 | |
| 111 | 42 Add CCNO to indicate comparisons against zero that require |
| 0 | 43 Overflow flag to be unset. Sign bit test is used instead and |
| 44 thus can be used to form "a&b>0" type of tests. | |
| 45 | |
| 111 | 46 Add CCGC to indicate comparisons against zero that allow |
| 0 | 47 unspecified garbage in the Carry flag. This mode is used |
| 48 by inc/dec instructions. | |
| 49 | |
| 111 | 50 Add CCGOC to indicate comparisons against zero that allow |
| 0 | 51 unspecified garbage in the Carry and Overflow flag. This |
| 52 mode is used to simulate comparisons of (a-b) and (a+b) | |
| 53 against zero using sub/cmp/add operations. | |
| 54 | |
| 111 | 55 Add CCGZ to indicate comparisons that allow unspecified garbage |
| 56 in the Zero flag. This mode is used in double-word comparisons. | |
| 57 | |
| 0 | 58 Add CCA to indicate that only the Above flag is valid. |
| 59 Add CCC to indicate that only the Carry flag is valid. | |
| 60 Add CCO to indicate that only the Overflow flag is valid. | |
| 111 | 61 Add CCP to indicate that only the Parity flag is valid. |
| 0 | 62 Add CCS to indicate that only the Sign flag is valid. |
| 63 Add CCZ to indicate that only the Zero flag is valid. */ | |
| 64 | |
| 65 CC_MODE (CCGC); | |
| 66 CC_MODE (CCGOC); | |
| 67 CC_MODE (CCNO); | |
| 111 | 68 CC_MODE (CCGZ); |
| 0 | 69 CC_MODE (CCA); |
| 70 CC_MODE (CCC); | |
| 71 CC_MODE (CCO); | |
| 111 | 72 CC_MODE (CCP); |
| 0 | 73 CC_MODE (CCS); |
| 74 CC_MODE (CCZ); | |
| 131 | 75 |
| 0 | 76 CC_MODE (CCFP); |
| 77 | |
|
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78 /* Vector modes. Note that VEC_CONCAT patterns require vector |
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79 sizes twice as big as implemented in hardware. */ |
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80 VECTOR_MODES (INT, 4); /* V4QI V2HI */ |
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81 VECTOR_MODES (INT, 8); /* V8QI V4HI V2SI */ |
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82 VECTOR_MODES (INT, 16); /* V16QI V8HI V4SI V2DI */ |
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83 VECTOR_MODES (INT, 32); /* V32QI V16HI V8SI V4DI */ |
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84 VECTOR_MODES (INT, 64); /* V64QI V32HI V16SI V8DI */ |
| 111 | 85 VECTOR_MODES (INT, 128); /* V128QI V64HI V32SI V16DI */ |
| 86 VECTOR_MODES (FLOAT, 8); /* V2SF */ | |
| 87 VECTOR_MODES (FLOAT, 16); /* V4SF V2DF */ | |
| 88 VECTOR_MODES (FLOAT, 32); /* V8SF V4DF V2TF */ | |
| 89 VECTOR_MODES (FLOAT, 64); /* V16SF V8DF V4TF */ | |
| 90 VECTOR_MODES (FLOAT, 128); /* V32SF V16DF V8TF */ | |
| 91 VECTOR_MODES (FLOAT, 256); /* V64SF V32DF V16TF */ | |
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92 VECTOR_MODE (INT, TI, 1); /* V1TI */ |
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93 VECTOR_MODE (INT, DI, 1); /* V1DI */ |
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94 VECTOR_MODE (INT, SI, 1); /* V1SI */ |
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parents:
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95 VECTOR_MODE (INT, QI, 2); /* V2QI */ |
| 111 | 96 VECTOR_MODE (INT, QI, 12); /* V12QI */ |
| 97 VECTOR_MODE (INT, QI, 14); /* V14QI */ | |
| 98 VECTOR_MODE (INT, HI, 6); /* V6HI */ | |
| 99 VECTOR_MODE (INT, SI, 64); /* V64SI */ | |
| 100 | |
| 0 | 101 INT_MODE (OI, 32); |
| 111 | 102 INT_MODE (XI, 64); |
| 103 | |
| 104 /* Keep the OI and XI modes from confusing the compiler into thinking | |
| 105 that these modes could actually be used for computation. They are | |
| 106 only holders for vectors during data movement. */ | |
| 107 #define MAX_BITSIZE_MODE_ANY_INT (128) | |
| 0 | 108 |
| 109 /* The symbol Pmode stands for one of the above machine modes (usually SImode). | |
| 110 The tm.h file specifies which one. It is not a distinct mode. */ |