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comparison gcc/config/s390/s390.opt @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 ; Options for the S/390 / zSeries port of the compiler.
2
3 ; Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
4 ;
5 ; This file is part of GCC.
6 ;
7 ; GCC is free software; you can redistribute it and/or modify it under
8 ; the terms of the GNU General Public License as published by the Free
9 ; Software Foundation; either version 3, or (at your option) any later
10 ; version.
11 ;
12 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 ; for more details.
16 ;
17 ; You should have received a copy of the GNU General Public License
18 ; along with GCC; see the file COPYING3. If not see
19 ; <http://www.gnu.org/licenses/>.
20
21 m31
22 Target Report RejectNegative Negative(m64) InverseMask(64BIT)
23 31 bit ABI
24
25 m64
26 Target Report RejectNegative Negative(m31) Mask(64BIT)
27 64 bit ABI
28
29 march=
30 Target RejectNegative Joined Var(s390_arch_string)
31 Generate code for given CPU
32
33 mbackchain
34 Target Report Mask(BACKCHAIN)
35 Maintain backchain pointer
36
37 mdebug
38 Target Report Mask(DEBUG_ARG)
39 Additional debug prints
40
41 mesa
42 Target Report RejectNegative Negative(mzarch) InverseMask(ZARCH)
43 ESA/390 architecture
44
45 mfused-madd
46 Target Report Mask(FUSED_MADD)
47 Enable fused multiply/add instructions
48
49 mhard-dfp
50 Target Report Mask(HARD_DFP)
51 Enable decimal floating point hardware support
52
53 mhard-float
54 Target Report RejectNegative Negative(msoft-float) InverseMask(SOFT_FLOAT, HARD_FLOAT)
55 Enable hardware floating point
56
57 mlong-double-128
58 Target Report RejectNegative Negative(mlong-double-64) Mask(LONG_DOUBLE_128)
59 Use 128-bit long double
60
61 mlong-double-64
62 Target Report RejectNegative Negative(mlong-double-128) InverseMask(LONG_DOUBLE_128)
63 Use 64-bit long double
64
65 mpacked-stack
66 Target Report Mask(PACKED_STACK)
67 Use packed stack layout
68
69 msmall-exec
70 Target Report Mask(SMALL_EXEC)
71 Use bras for executable < 64k
72
73 msoft-float
74 Target Report RejectNegative Negative(mhard-float) Mask(SOFT_FLOAT)
75 Disable hardware floating point
76
77 mstack-guard=
78 Target RejectNegative Joined
79 Set the max. number of bytes which has to be left to stack size before a trap instruction is triggered
80
81 mstack-size=
82 Target RejectNegative Joined
83 Emit extra code in the function prologue in order to trap if the stack size exceeds the given limit
84
85 mtune=
86 Target RejectNegative Joined
87 Schedule code for given CPU
88
89 mmvcle
90 Target Report Mask(MVCLE)
91 mvcle use
92
93 mwarn-dynamicstack
94 Target RejectNegative Var(s390_warn_dynamicstack_p)
95 Warn if a function uses alloca or creates an array with dynamic size
96
97 mwarn-framesize=
98 Target RejectNegative Joined
99 Warn if a single function's framesize exceeds the given framesize
100
101 mzarch
102 Target Report RejectNegative Negative(mesa) Mask(ZARCH)
103 z/Architecture