tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Generator for RTL pass related boilerplate code/data
3 *
4 * Supports gcc 4.5-6
5 *
6 * Usage:
7 *
8 * 1. before inclusion define PASS_NAME
9 * 2. before inclusion define NO_* for unimplemented callbacks
10 * NO_GATE
11 * NO_EXECUTE
12 * 3. before inclusion define PROPERTIES_* and TODO_FLAGS_* to override
13 * the default 0 values
14 * 4. for convenience, all the above will be undefined after inclusion!
15 * 5. the only exported name is make_PASS_NAME_pass() to register with gcc
16 */
17
18#ifndef PASS_NAME
19#error at least PASS_NAME must be defined
20#else
21#define __GCC_PLUGIN_STRINGIFY(n) #n
22#define _GCC_PLUGIN_STRINGIFY(n) __GCC_PLUGIN_STRINGIFY(n)
23#define _GCC_PLUGIN_CONCAT2(x, y) x ## y
24#define _GCC_PLUGIN_CONCAT3(x, y, z) x ## y ## z
25
26#define __PASS_NAME_PASS_DATA(n) _GCC_PLUGIN_CONCAT2(n, _pass_data)
27#define _PASS_NAME_PASS_DATA __PASS_NAME_PASS_DATA(PASS_NAME)
28
29#define __PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT2(n, _pass)
30#define _PASS_NAME_PASS __PASS_NAME_PASS(PASS_NAME)
31
32#define _PASS_NAME_NAME _GCC_PLUGIN_STRINGIFY(PASS_NAME)
33
34#define __MAKE_PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT3(make_, n, _pass)
35#define _MAKE_PASS_NAME_PASS __MAKE_PASS_NAME_PASS(PASS_NAME)
36
37#ifdef NO_GATE
38#define _GATE NULL
39#define _HAS_GATE false
40#else
41#define __GATE(n) _GCC_PLUGIN_CONCAT2(n, _gate)
42#define _GATE __GATE(PASS_NAME)
43#define _HAS_GATE true
44#endif
45
46#ifdef NO_EXECUTE
47#define _EXECUTE NULL
48#define _HAS_EXECUTE false
49#else
50#define __EXECUTE(n) _GCC_PLUGIN_CONCAT2(n, _execute)
51#define _EXECUTE __EXECUTE(PASS_NAME)
52#define _HAS_EXECUTE true
53#endif
54
55#ifndef PROPERTIES_REQUIRED
56#define PROPERTIES_REQUIRED 0
57#endif
58
59#ifndef PROPERTIES_PROVIDED
60#define PROPERTIES_PROVIDED 0
61#endif
62
63#ifndef PROPERTIES_DESTROYED
64#define PROPERTIES_DESTROYED 0
65#endif
66
67#ifndef TODO_FLAGS_START
68#define TODO_FLAGS_START 0
69#endif
70
71#ifndef TODO_FLAGS_FINISH
72#define TODO_FLAGS_FINISH 0
73#endif
74
75#if BUILDING_GCC_VERSION >= 4009
76namespace {
77static const pass_data _PASS_NAME_PASS_DATA = {
78#else
79static struct rtl_opt_pass _PASS_NAME_PASS = {
80 .pass = {
81#endif
82 .type = RTL_PASS,
83 .name = _PASS_NAME_NAME,
84#if BUILDING_GCC_VERSION >= 4008
85 .optinfo_flags = OPTGROUP_NONE,
86#endif
87#if BUILDING_GCC_VERSION >= 5000
88#elif BUILDING_GCC_VERSION == 4009
89 .has_gate = _HAS_GATE,
90 .has_execute = _HAS_EXECUTE,
91#else
92 .gate = _GATE,
93 .execute = _EXECUTE,
94 .sub = NULL,
95 .next = NULL,
96 .static_pass_number = 0,
97#endif
98 .tv_id = TV_NONE,
99 .properties_required = PROPERTIES_REQUIRED,
100 .properties_provided = PROPERTIES_PROVIDED,
101 .properties_destroyed = PROPERTIES_DESTROYED,
102 .todo_flags_start = TODO_FLAGS_START,
103 .todo_flags_finish = TODO_FLAGS_FINISH,
104#if BUILDING_GCC_VERSION < 4009
105 }
106#endif
107};
108
109#if BUILDING_GCC_VERSION >= 4009
110class _PASS_NAME_PASS : public rtl_opt_pass {
111public:
112 _PASS_NAME_PASS() : rtl_opt_pass(_PASS_NAME_PASS_DATA, g) {}
113
114#ifndef NO_GATE
115#if BUILDING_GCC_VERSION >= 5000
116 virtual bool gate(function *) { return _GATE(); }
117#else
118 virtual bool gate(void) { return _GATE(); }
119#endif
120#endif
121
122 virtual opt_pass *clone() { return new _PASS_NAME_PASS(); }
123
124#ifndef NO_EXECUTE
125#if BUILDING_GCC_VERSION >= 5000
126 virtual unsigned int execute(function *) { return _EXECUTE(); }
127#else
128 virtual unsigned int execute(void) { return _EXECUTE(); }
129#endif
130#endif
131};
132}
133
134opt_pass *_MAKE_PASS_NAME_PASS(void)
135{
136 return new _PASS_NAME_PASS();
137}
138#else
139struct opt_pass *_MAKE_PASS_NAME_PASS(void)
140{
141 return &_PASS_NAME_PASS.pass;
142}
143#endif
144
145/* clean up user provided defines */
146#undef PASS_NAME
147#undef NO_GATE
148#undef NO_EXECUTE
149
150#undef PROPERTIES_DESTROYED
151#undef PROPERTIES_PROVIDED
152#undef PROPERTIES_REQUIRED
153#undef TODO_FLAGS_FINISH
154#undef TODO_FLAGS_START
155
156/* clean up generated defines */
157#undef _EXECUTE
158#undef __EXECUTE
159#undef _GATE
160#undef __GATE
161#undef _GCC_PLUGIN_CONCAT2
162#undef _GCC_PLUGIN_CONCAT3
163#undef _GCC_PLUGIN_STRINGIFY
164#undef __GCC_PLUGIN_STRINGIFY
165#undef _HAS_EXECUTE
166#undef _HAS_GATE
167#undef _MAKE_PASS_NAME_PASS
168#undef __MAKE_PASS_NAME_PASS
169#undef _PASS_NAME_NAME
170#undef _PASS_NAME_PASS
171#undef __PASS_NAME_PASS
172#undef _PASS_NAME_PASS_DATA
173#undef __PASS_NAME_PASS_DATA
174
175#endif /* PASS_NAME */