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comparison gcc/config/i386/i386-modes.def @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents 77e2b8dfacca
children 84e7813d76e9
comparison
equal deleted inserted replaced
68:561a7518be6b 111:04ced10e8804
1 /* Definitions of target machine for GCC for IA-32. 1 /* Definitions of target machine for GCC for IA-32.
2 Copyright (C) 2002, 2004, 2005, 2007, 2008 Free Software Foundation, Inc. 2 Copyright (C) 2002-2017 Free Software Foundation, Inc.
3 3
4 This file is part of GCC. 4 This file is part of GCC.
5 5
6 GCC is free software; you can redistribute it and/or modify 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 7 it under the terms of the GNU General Public License as published by
37 /* Add any extra modes needed to represent the condition code. 37 /* Add any extra modes needed to represent the condition code.
38 38
39 For the i386, we need separate modes when floating-point 39 For the i386, we need separate modes when floating-point
40 equality comparisons are being done. 40 equality comparisons are being done.
41 41
42 Add CCNO to indicate comparisons against zero that requires 42 Add CCNO to indicate comparisons against zero that require
43 Overflow flag to be unset. Sign bit test is used instead and 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. 44 thus can be used to form "a&b>0" type of tests.
45 45
46 Add CCGC to indicate comparisons against zero that allows 46 Add CCGC to indicate comparisons against zero that allow
47 unspecified garbage in the Carry flag. This mode is used 47 unspecified garbage in the Carry flag. This mode is used
48 by inc/dec instructions. 48 by inc/dec instructions.
49 49
50 Add CCGOC to indicate comparisons against zero that allows 50 Add CCGOC to indicate comparisons against zero that allow
51 unspecified garbage in the Carry and Overflow flag. This 51 unspecified garbage in the Carry and Overflow flag. This
52 mode is used to simulate comparisons of (a-b) and (a+b) 52 mode is used to simulate comparisons of (a-b) and (a+b)
53 against zero using sub/cmp/add operations. 53 against zero using sub/cmp/add operations.
54 54
55 Add CCGZ to indicate comparisons that allow unspecified garbage
56 in the Zero flag. This mode is used in double-word comparisons.
57
55 Add CCA to indicate that only the Above flag is valid. 58 Add CCA to indicate that only the Above flag is valid.
56 Add CCC to indicate that only the Carry flag is valid. 59 Add CCC to indicate that only the Carry flag is valid.
57 Add CCO to indicate that only the Overflow flag is valid. 60 Add CCO to indicate that only the Overflow flag is valid.
61 Add CCP to indicate that only the Parity flag is valid.
58 Add CCS to indicate that only the Sign flag is valid. 62 Add CCS to indicate that only the Sign flag is valid.
59 Add CCZ to indicate that only the Zero flag is valid. */ 63 Add CCZ to indicate that only the Zero flag is valid. */
60 64
61 CC_MODE (CCGC); 65 CC_MODE (CCGC);
62 CC_MODE (CCGOC); 66 CC_MODE (CCGOC);
63 CC_MODE (CCNO); 67 CC_MODE (CCNO);
68 CC_MODE (CCGZ);
64 CC_MODE (CCA); 69 CC_MODE (CCA);
65 CC_MODE (CCC); 70 CC_MODE (CCC);
66 CC_MODE (CCO); 71 CC_MODE (CCO);
72 CC_MODE (CCP);
67 CC_MODE (CCS); 73 CC_MODE (CCS);
68 CC_MODE (CCZ); 74 CC_MODE (CCZ);
69 CC_MODE (CCFP); 75 CC_MODE (CCFP);
70 CC_MODE (CCFPU); 76 CC_MODE (CCFPU);
71 77
74 VECTOR_MODES (INT, 4); /* V4QI V2HI */ 80 VECTOR_MODES (INT, 4); /* V4QI V2HI */
75 VECTOR_MODES (INT, 8); /* V8QI V4HI V2SI */ 81 VECTOR_MODES (INT, 8); /* V8QI V4HI V2SI */
76 VECTOR_MODES (INT, 16); /* V16QI V8HI V4SI V2DI */ 82 VECTOR_MODES (INT, 16); /* V16QI V8HI V4SI V2DI */
77 VECTOR_MODES (INT, 32); /* V32QI V16HI V8SI V4DI */ 83 VECTOR_MODES (INT, 32); /* V32QI V16HI V8SI V4DI */
78 VECTOR_MODES (INT, 64); /* V64QI V32HI V16SI V8DI */ 84 VECTOR_MODES (INT, 64); /* V64QI V32HI V16SI V8DI */
79 VECTOR_MODES (FLOAT, 8); /* V4HF V2SF */ 85 VECTOR_MODES (INT, 128); /* V128QI V64HI V32SI V16DI */
80 VECTOR_MODES (FLOAT, 16); /* V8HF V4SF V2DF */ 86 VECTOR_MODES (FLOAT, 8); /* V2SF */
81 VECTOR_MODES (FLOAT, 32); /* V16HF V8SF V4DF */ 87 VECTOR_MODES (FLOAT, 16); /* V4SF V2DF */
82 VECTOR_MODES (FLOAT, 64); /* V32HF V16SF V8DF */ 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 */
83 VECTOR_MODE (INT, TI, 1); /* V1TI */ 92 VECTOR_MODE (INT, TI, 1); /* V1TI */
84 VECTOR_MODE (INT, DI, 1); /* V1DI */ 93 VECTOR_MODE (INT, DI, 1); /* V1DI */
85 VECTOR_MODE (INT, SI, 1); /* V1SI */ 94 VECTOR_MODE (INT, SI, 1); /* V1SI */
86 VECTOR_MODE (INT, QI, 2); /* V2QI */ 95 VECTOR_MODE (INT, QI, 2); /* V2QI */
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
101 POINTER_BOUNDS_MODE (BND32, 8);
102 POINTER_BOUNDS_MODE (BND64, 16);
87 103
88 INT_MODE (OI, 32); 104 INT_MODE (OI, 32);
105 INT_MODE (XI, 64);
106
107 /* Keep the OI and XI modes from confusing the compiler into thinking
108 that these modes could actually be used for computation. They are
109 only holders for vectors during data movement. */
110 #define MAX_BITSIZE_MODE_ANY_INT (128)
89 111
90 /* The symbol Pmode stands for one of the above machine modes (usually SImode). 112 /* The symbol Pmode stands for one of the above machine modes (usually SImode).
91 The tm.h file specifies which one. It is not a distinct mode. */ 113 The tm.h file specifies which one. It is not a distinct mode. */