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1 ; Options for the S/390 / zSeries port of the compiler.
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2
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3 ; Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
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4 ;
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5 ; This file is part of GCC.
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6 ;
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7 ; GCC is free software; you can redistribute it and/or modify it under
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8 ; the terms of the GNU General Public License as published by the Free
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9 ; Software Foundation; either version 3, or (at your option) any later
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10 ; version.
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11 ;
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12 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 ; for more details.
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16 ;
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17 ; You should have received a copy of the GNU General Public License
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18 ; along with GCC; see the file COPYING3. If not see
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19 ; <http://www.gnu.org/licenses/>.
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20
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21 m31
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22 Target Report RejectNegative Negative(m64) InverseMask(64BIT)
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23 31 bit ABI
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24
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25 m64
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26 Target Report RejectNegative Negative(m31) Mask(64BIT)
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27 64 bit ABI
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28
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29 march=
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30 Target RejectNegative Joined Var(s390_arch_string)
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31 Generate code for given CPU
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32
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33 mbackchain
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34 Target Report Mask(BACKCHAIN)
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35 Maintain backchain pointer
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36
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37 mdebug
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38 Target Report Mask(DEBUG_ARG)
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39 Additional debug prints
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40
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41 mesa
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42 Target Report RejectNegative Negative(mzarch) InverseMask(ZARCH)
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43 ESA/390 architecture
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44
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45 mfused-madd
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46 Target Report Mask(FUSED_MADD)
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47 Enable fused multiply/add instructions
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48
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49 mhard-dfp
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50 Target Report Mask(HARD_DFP)
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51 Enable decimal floating point hardware support
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52
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53 mhard-float
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54 Target Report RejectNegative Negative(msoft-float) InverseMask(SOFT_FLOAT, HARD_FLOAT)
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55 Enable hardware floating point
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56
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57 mlong-double-128
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58 Target Report RejectNegative Negative(mlong-double-64) Mask(LONG_DOUBLE_128)
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59 Use 128-bit long double
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60
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61 mlong-double-64
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62 Target Report RejectNegative Negative(mlong-double-128) InverseMask(LONG_DOUBLE_128)
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63 Use 64-bit long double
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64
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65 mpacked-stack
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66 Target Report Mask(PACKED_STACK)
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67 Use packed stack layout
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68
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69 msmall-exec
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70 Target Report Mask(SMALL_EXEC)
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71 Use bras for executable < 64k
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72
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73 msoft-float
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74 Target Report RejectNegative Negative(mhard-float) Mask(SOFT_FLOAT)
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75 Disable hardware floating point
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76
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77 mstack-guard=
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78 Target RejectNegative Joined
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79 Set the max. number of bytes which has to be left to stack size before a trap instruction is triggered
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80
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81 mstack-size=
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82 Target RejectNegative Joined
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83 Emit extra code in the function prologue in order to trap if the stack size exceeds the given limit
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84
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85 mtune=
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86 Target RejectNegative Joined
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87 Schedule code for given CPU
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88
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89 mmvcle
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90 Target Report Mask(MVCLE)
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91 mvcle use
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92
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93 mwarn-dynamicstack
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94 Target RejectNegative Var(s390_warn_dynamicstack_p)
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95 Warn if a function uses alloca or creates an array with dynamic size
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96
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97 mwarn-framesize=
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98 Target RejectNegative Joined
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99 Warn if a single function's framesize exceeds the given framesize
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100
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101 mzarch
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102 Target Report RejectNegative Negative(mesa) Mask(ZARCH)
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103 z/Architecture
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