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annotate gcc/config/microblaze/microblaze.opt @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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1 ; Options for the MicroBlaze port of the compiler
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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2 ;
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84e7813d76e9 gcc-8.2
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3 ; Copyright (C) 2009-2018 Free Software Foundation, Inc.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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4 ;
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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5 ; Contributed by Michael Eager <eager@eagercon.com>.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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6 ;
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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7 ; This file is part of GCC.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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8 ;
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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9 ; GCC is free software; you can redistribute it and/or modify it under
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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10 ; the terms of the GNU General Public License as published by the Free
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parents:
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11 ; Software Foundation; either version 3, or (at your option) any later
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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12 ; version.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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13 ;
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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14 ; GCC is distributed in the hope that it will be useful, but WITHOUT
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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15 ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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16 ; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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17 ; License for more details.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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18 ;
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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19 ; You should have received a copy of the GNU General Public License
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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20 ; along with GCC; see the file COPYING3. If not see
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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21 ; <http://www.gnu.org/licenses/>. */
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22
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23 Zxl-mode-bootstrap
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24 Driver
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25
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26 Zxl-mode-executable
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27 Driver
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28
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29 Zxl-mode-novectors
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30 Driver
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31
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32 Zxl-mode-xilkernel
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33 Driver
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34
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35 Zxl-mode-xmdstub
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36 Driver
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37
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38 msoft-float
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39 Target Report RejectNegative Mask(SOFT_FLOAT)
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40 Use software emulation for floating point (default).
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41
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42 mhard-float
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43 Target Report RejectNegative InverseMask(SOFT_FLOAT, HARD_FLOAT)
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44 Use hardware floating point instructions.
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45
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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46 msmall-divides
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47 Target Mask(SMALL_DIVIDES)
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48 Use table lookup optimization for small signed integer divisions.
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49
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50 mcpu=
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51 Target RejectNegative Joined Var(microblaze_select_cpu)
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52 -mcpu=PROCESSOR Use features of and schedule code for given CPU.
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53
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54 mmemcpy
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55 Target Mask(MEMCPY)
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56 Don't optimize block moves, use memcpy.
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57
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58 mbig-endian
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59 Target Report RejectNegative InverseMask(LITTLE_ENDIAN)
kono
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60 Assume target CPU is configured as big endian.
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61
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62 mlittle-endian
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63 Target Report RejectNegative Mask(LITTLE_ENDIAN)
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64 Assume target CPU is configured as little endian.
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65
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66 mxl-soft-mul
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67 Target Mask(SOFT_MUL)
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68 Use the soft multiply emulation (default).
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69
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70 mxl-reorder
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71 Target Var(TARGET_REORDER) Init(2)
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72 Use reorder instructions (swap and byte reversed load/store) (default).
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73
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74 mxl-soft-div
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75 Target Mask(SOFT_DIV)
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76 Use the software emulation for divides (default).
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77
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78 mxl-barrel-shift
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79 Target Mask(BARREL_SHIFT)
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kono
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80 Use the hardware barrel shifter instead of emulation.
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81
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82 mxl-pattern-compare
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83 Target Mask(PATTERN_COMPARE)
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84 Use pattern compare instructions.
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85
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86 mxl-stack-check
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kono
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87 Target Mask(STACK_CHECK) Warn(%qs is deprecated; use -fstack-check)
kono
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88 Check for stack overflow at runtime.
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89
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90 mxl-gp-opt
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91 Target Mask(XLGPOPT)
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92 Use GP relative sdata/sbss sections.
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93
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94 mno-clearbss
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kono
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95 Target RejectNegative Var(flag_zero_initialized_in_bss, 0) Warn(%qs is deprecated; use -fno-zero-initialized-in-bss)
kono
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96 Clear the BSS to zero and place zero initialized in BSS.
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97
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98 mxl-multiply-high
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99 Target Mask(MULTIPLY_HIGH)
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kono
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100 Use multiply high instructions for high part of 32x32 multiply.
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101
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102 mxl-float-convert
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103 Target Mask(FLOAT_CONVERT)
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kono
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104 Use hardware floating point conversion instructions.
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105
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106 mxl-float-sqrt
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107 Target Mask(FLOAT_SQRT)
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kono
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108 Use hardware floating point square root instruction.
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109
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110 mxl-mode-executable
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111 Target Mask(XL_MODE_EXECUTABLE)
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kono
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112 Description for mxl-mode-executable.
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113
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114 mxl-mode-xmdstub
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115 Target Mask(XL_MODE_XMDSTUB)
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116 Description for mxl-mode-xmdstub.
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117
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118 mxl-mode-bootstrap
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119 Target Mask(XL_MODE_BOOTSTRAP)
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kono
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120 Description for mxl-mode-bootstrap.
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121
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122 mxl-mode-novectors
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123 Target Mask(XL_MODE_NOVECTORS)
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kono
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124 Description for mxl-mode-novectors.
kono
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125
kono
parents: 68
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126 mxl-prefetch
kono
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127 Target Mask(PREFETCH)
kono
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128 Use hardware prefetch instruction
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129
131
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130 mpic-data-is-text-relative
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131 Target Mask(PIC_DATA_TEXT_REL)
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132 Data referenced by offset from start of text instead of GOT (with -fPIC/-fPIE).
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133
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134 mxl-mode-xilkernel
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135 Target