gcc/config/microblaze/microblaze.opt

   1 ; Options for the MicroBlaze port of the compiler
   2 ;
   3 ; Copyright (C) 2009-2016 Free Software Foundation, Inc.
   4 ;
   5 ; Contributed by Michael Eager <eager@eagercon.com>.
   6 ;
   7 ; This file is part of GCC.
   8 ;
   9 ; GCC is free software; you can redistribute it and/or modify it under
  10 ; the terms of the GNU General Public License as published by the Free
  11 ; Software Foundation; either version 3, or (at your option) any later
  12 ; version.
  13 ;
  14 ; GCC is distributed in the hope that it will be useful, but WITHOUT
  15 ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  16 ; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  17 ; License for more details.
  18 ;
  19 ; You should have received a copy of the GNU General Public License
  20 ; along with GCC; see the file COPYING3.  If not see
  21 ; <http://www.gnu.org/licenses/>.  */
  22
  23 Zxl-mode-bootstrap
  24 Driver
  25
  26 Zxl-mode-executable
  27 Driver
  28
  29 Zxl-mode-novectors
  30 Driver
  31
  32 Zxl-mode-xilkernel
  33 Driver
  34
  35 Zxl-mode-xmdstub
  36 Driver
  37
  38 msoft-float
  39 Target Report RejectNegative Mask(SOFT_FLOAT)
  40 Use software emulation for floating point (default).
  41
  42 mhard-float
  43 Target Report RejectNegative InverseMask(SOFT_FLOAT, HARD_FLOAT)
  44 Use hardware floating point instructions.
  45
  46 msmall-divides
  47 Target Mask(SMALL_DIVIDES)
  48 Use table lookup optimization for small signed integer divisions.
  49
  50 mcpu=
  51 Target RejectNegative Joined Var(microblaze_select_cpu)
  52 -mcpu=PROCESSOR         Use features of and schedule code for given CPU.
  53
  54 mmemcpy
  55 Target Mask(MEMCPY)
  56 Don't optimize block moves, use memcpy.
  57
  58 mbig-endian
  59 Target Report RejectNegative InverseMask(LITTLE_ENDIAN)
  60 Assume target CPU is configured as big endian.
  61
  62 mlittle-endian
  63 Target Report RejectNegative Mask(LITTLE_ENDIAN)
  64 Assume target CPU is configured as little endian.
  65
  66 mxl-soft-mul
  67 Target Mask(SOFT_MUL)
  68 Use the soft multiply emulation (default).
  69
  70 mxl-reorder
  71 Target Var(TARGET_REORDER) Init(2)
  72 Use reorder instructions (swap and byte reversed load/store) (default).
  73
  74 mxl-soft-div
  75 Target Mask(SOFT_DIV)
  76 Use the software emulation for divides (default).
  77
  78 mxl-barrel-shift
  79 Target Mask(BARREL_SHIFT)
  80 Use the hardware barrel shifter instead of emulation.
  81
  82 mxl-pattern-compare
  83 Target Mask(PATTERN_COMPARE)
  84 Use pattern compare instructions.
  85
  86 mxl-stack-check
  87 Target Mask(STACK_CHECK) Warn(%qs is deprecated; use -fstack-check)
  88 Check for stack overflow at runtime.
  89
  90 mxl-gp-opt
  91 Target Mask(XLGPOPT)
  92 Use GP relative sdata/sbss sections.
  93
  94 mno-clearbss
  95 Target RejectNegative Var(flag_zero_initialized_in_bss, 0) Warn(%qs is deprecated; use -fno-zero-initialized-in-bss)
  96 Clear the BSS to zero and place zero initialized in BSS.
  97
  98 mxl-multiply-high
  99 Target Mask(MULTIPLY_HIGH)
 100 Use multiply high instructions for high part of 32x32 multiply.
 101
 102 mxl-float-convert
 103 Target Mask(FLOAT_CONVERT)
 104 Use hardware floating point conversion instructions.
 105
 106 mxl-float-sqrt
 107 Target Mask(FLOAT_SQRT)
 108 Use hardware floating point square root instruction.
 109
 110 mxl-mode-executable
 111 Target Mask(XL_MODE_EXECUTABLE)
 112 Description for mxl-mode-executable.
 113
 114 mxl-mode-xmdstub
 115 Target Mask(XL_MODE_XMDSTUB)
 116 Description for mxl-mode-xmdstub.
 117
 118 mxl-mode-bootstrap
 119 Target Mask(XL_MODE_BOOTSTRAP)
 120 Description for mxl-mode-bootstrap.
 121
 122 mxl-mode-novectors
 123 Target Mask(XL_MODE_NOVECTORS)
 124 Description for mxl-mode-novectors.
 125
 126 mxl-mode-xilkernel
 127 Target