1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Generator for RTL pass related boilerplate code/data
4 *
5 * Supports gcc 4.5-6
6 *
7 * Usage:
8 *
9 * 1. before inclusion define PASS_NAME
10 * 2. before inclusion define NO_* for unimplemented callbacks
11 * NO_GATE
12 * NO_EXECUTE
13 * 3. before inclusion define PROPERTIES_* and TODO_FLAGS_* to override
14 * the default 0 values
15 * 4. for convenience, all the above will be undefined after inclusion!
16 * 5. the only exported name is make_PASS_NAME_pass() to register with gcc
17 */
18
19 #ifndef PASS_NAME
20 #error at least PASS_NAME must be defined
21 #else
22 #define __GCC_PLUGIN_STRINGIFY(n) #n
23 #define _GCC_PLUGIN_STRINGIFY(n) __GCC_PLUGIN_STRINGIFY(n)
24 #define _GCC_PLUGIN_CONCAT2(x, y) x ## y
25 #define _GCC_PLUGIN_CONCAT3(x, y, z) x ## y ## z
26
27 #define __PASS_NAME_PASS_DATA(n) _GCC_PLUGIN_CONCAT2(n, _pass_data)
28 #define _PASS_NAME_PASS_DATA __PASS_NAME_PASS_DATA(PASS_NAME)
29
30 #define __PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT2(n, _pass)
31 #define _PASS_NAME_PASS __PASS_NAME_PASS(PASS_NAME)
32
33 #define _PASS_NAME_NAME _GCC_PLUGIN_STRINGIFY(PASS_NAME)
34
35 #define __MAKE_PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT3(make_, n, _pass)
36 #define _MAKE_PASS_NAME_PASS __MAKE_PASS_NAME_PASS(PASS_NAME)
37
38 #ifdef NO_GATE
39 #define _GATE NULL
40 #define _HAS_GATE false
41 #else
42 #define __GATE(n) _GCC_PLUGIN_CONCAT2(n, _gate)
43 #define _GATE __GATE(PASS_NAME)
44 #define _HAS_GATE true
45 #endif
46
47 #ifdef NO_EXECUTE
48 #define _EXECUTE NULL
49 #define _HAS_EXECUTE false
50 #else
51 #define __EXECUTE(n) _GCC_PLUGIN_CONCAT2(n, _execute)
52 #define _EXECUTE __EXECUTE(PASS_NAME)
53 #define _HAS_EXECUTE true
54 #endif
55
56 #ifndef PROPERTIES_REQUIRED
57 #define PROPERTIES_REQUIRED 0
58 #endif
59
60 #ifndef PROPERTIES_PROVIDED
61 #define PROPERTIES_PROVIDED 0
62 #endif
63
64 #ifndef PROPERTIES_DESTROYED
65 #define PROPERTIES_DESTROYED 0
66 #endif
67
68 #ifndef TODO_FLAGS_START
69 #define TODO_FLAGS_START 0
70 #endif
71
72 #ifndef TODO_FLAGS_FINISH
73 #define TODO_FLAGS_FINISH 0
74 #endif
75
76 namespace {
77 static const pass_data _PASS_NAME_PASS_DATA = {
78 .type = RTL_PASS,
79 .name = _PASS_NAME_NAME,
80 .optinfo_flags = OPTGROUP_NONE,
81 .tv_id = TV_NONE,
82 .properties_required = PROPERTIES_REQUIRED,
83 .properties_provided = PROPERTIES_PROVIDED,
84 .properties_destroyed = PROPERTIES_DESTROYED,
85 .todo_flags_start = TODO_FLAGS_START,
86 .todo_flags_finish = TODO_FLAGS_FINISH,
87 };
88
89 class _PASS_NAME_PASS : public rtl_opt_pass {
90 public:
91 _PASS_NAME_PASS() : rtl_opt_pass(_PASS_NAME_PASS_DATA, g) {}
92
93 #ifndef NO_GATE
94 virtual bool gate(function *) { return _GATE(); }
95 #endif
96
97 virtual opt_pass *clone() { return new _PASS_NAME_PASS(); }
98
99 #ifndef NO_EXECUTE
100 virtual unsigned int execute(function *) { return _EXECUTE(); }
101 #endif
102 };
103 }
104
105 opt_pass *_MAKE_PASS_NAME_PASS(void)
106 {
107 return new _PASS_NAME_PASS();
108 }
109
110 /* clean up user provided defines */
111 #undef PASS_NAME
112 #undef NO_GATE
113 #undef NO_EXECUTE
114
115 #undef PROPERTIES_DESTROYED
116 #undef PROPERTIES_PROVIDED
117 #undef PROPERTIES_REQUIRED
118 #undef TODO_FLAGS_FINISH
119 #undef TODO_FLAGS_START
120
121 /* clean up generated defines */
122 #undef _EXECUTE
123 #undef __EXECUTE
124 #undef _GATE
125 #undef __GATE
126 #undef _GCC_PLUGIN_CONCAT2
127 #undef _GCC_PLUGIN_CONCAT3
128 #undef _GCC_PLUGIN_STRINGIFY
129 #undef __GCC_PLUGIN_STRINGIFY
130 #undef _HAS_EXECUTE
131 #undef _HAS_GATE
132 #undef _MAKE_PASS_NAME_PASS
133 #undef __MAKE_PASS_NAME_PASS
134 #undef _PASS_NAME_NAME
135 #undef _PASS_NAME_PASS
136 #undef __PASS_NAME_PASS
137 #undef _PASS_NAME_PASS_DATA
138 #undef __PASS_NAME_PASS_DATA
139
140 #endif /* PASS_NAME */
141
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