Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/spu/spu.opt @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
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date | Fri, 12 Feb 2010 23:39:51 +0900 |
parents | a06113de4d67 |
children | f6334be47118 |
rev | line source |
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0 | 1 ; Options for the SPU port of the compiler |
2 ; Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc. | |
3 | |
4 ; This file is free software; you can redistribute it and/or modify it under | |
5 ; the terms of the GNU General Public License as published by the Free | |
6 ; Software Foundation; either version 3 of the License, or (at your option) | |
7 ; any later version. | |
8 | |
9 ; This file is distributed in the hope that it will be useful, but WITHOUT | |
10 ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 ; for more details. | |
13 ; | |
14 ; You should have received a copy of the GNU General Public License | |
15 ; along with GCC; see the file COPYING3. If not see | |
16 ; <http://www.gnu.org/licenses/>. | |
17 | |
18 mwarn-reloc | |
19 Target Report Mask(WARN_RELOC) | |
20 Emit warnings when run-time relocations are generated | |
21 | |
22 merror-reloc | |
23 Target Report Mask(ERROR_RELOC) | |
24 Emit errors when run-time relocations are generated | |
25 | |
26 mbranch-cost= | |
27 Target RejectNegative Joined UInteger Var(spu_branch_cost) Init(20) | |
28 Specify cost of branches (Default 20) | |
29 | |
30 msafe-dma | |
31 Target Report RejectNegative Mask(SAFE_DMA) | |
32 Make sure loads and stores are not moved past DMA instructions | |
33 | |
34 munsafe-dma | |
35 Target Report RejectNegative InverseMask(SAFE_DMA) | |
36 volatile must be specified on any memory that is effected by DMA | |
37 | |
38 mdual-nops | |
39 Target Report Var(spu_dual_nops,10) Init(10) | |
40 Insert nops when it might improve performance by allowing dual issue (default) | |
41 | |
42 mdual-nops= | |
43 Target RejectNegative Joined UInteger Var(spu_dual_nops) | |
44 Insert nops when it might improve performance by allowing dual issue (default) | |
45 | |
46 mstdmain | |
47 Target Report Mask(STD_MAIN) | |
48 Use standard main function as entry for startup | |
49 | |
50 mbranch-hints | |
51 Target Report Mask(BRANCH_HINTS) | |
52 Generate branch hints for branches | |
53 | |
54 mhint-max-nops= | |
55 Target RejectNegative Joined UInteger Var(spu_max_nops) Init(2) | |
56 Maximum number of nops to insert for a hint (Default 2) | |
57 | |
58 mhint-max-distance= | |
59 Target RejectNegative Joined Var(spu_max_distance_str) | |
60 Approximate maximum number of instructions to allow between a hint and its branch [125] | |
61 | |
62 msmall-mem | |
63 Target Report RejectNegative InverseMask(LARGE_MEM) | |
64 Generate code for 18 bit addressing | |
65 | |
66 mlarge-mem | |
67 Target Report RejectNegative Mask(LARGE_MEM) | |
68 Generate code for 32 bit addressing | |
69 | |
70 mfixed-range= | |
71 Target RejectNegative Joined Var(spu_fixed_range_string) | |
72 Specify range of registers to make fixed | |
73 | |
74 msafe-hints | |
75 Target Report Mask(SAFE_HINTS) | |
76 Insert hbrp instructions after hinted branch targets to avoid the SPU hang issue | |
77 | |
78 march= | |
79 Target RejectNegative Joined Var(spu_arch_string) | |
80 Generate code for given CPU | |
81 | |
82 mtune= | |
83 Target RejectNegative Joined Var(spu_tune_string) | |
84 Schedule code for given CPU | |
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85 |
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86 mea32 |
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87 Target Report RejectNegative Var(spu_ea_model,32) Init(32) |
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88 Access variables in 32-bit PPU objects (default) |
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89 |
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90 mea64 |
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91 Target Report RejectNegative Var(spu_ea_model,64) VarExists |
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92 Access variables in 64-bit PPU objects |
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93 |
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94 maddress-space-conversion |
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95 Target Report Mask(ADDRESS_SPACE_CONVERSION) |
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96 Allow conversions between __ea and generic pointers (default) |
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97 |
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98 mcache-size= |
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99 Target Report RejectNegative Joined UInteger |
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100 Size (in KB) of software data cache |
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101 |
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102 matomic-updates |
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103 Target Report |
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104 Atomically write back software data cache lines (default) |
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105 |