Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/plugin/diagnostic_plugin_test_inlining.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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111:04ced10e8804 | 131:84e7813d76e9 |
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1 /* { dg-options "-O" } */ | |
2 | |
3 #include "gcc-plugin.h" | |
4 #include "config.h" | |
5 #include "system.h" | |
6 #include "coretypes.h" | |
7 #include "tm.h" | |
8 #include "tree.h" | |
9 #include "stringpool.h" | |
10 #include "toplev.h" | |
11 #include "basic-block.h" | |
12 #include "hash-table.h" | |
13 #include "vec.h" | |
14 #include "ggc.h" | |
15 #include "basic-block.h" | |
16 #include "tree-ssa-alias.h" | |
17 #include "internal-fn.h" | |
18 #include "gimple-fold.h" | |
19 #include "tree-eh.h" | |
20 #include "gimple-expr.h" | |
21 #include "is-a.h" | |
22 #include "gimple.h" | |
23 #include "gimple-iterator.h" | |
24 #include "tree.h" | |
25 #include "tree-pass.h" | |
26 #include "intl.h" | |
27 #include "plugin-version.h" | |
28 #include "c-family/c-common.h" | |
29 #include "diagnostic.h" | |
30 #include "context.h" | |
31 #include "print-tree.h" | |
32 #include "cpplib.h" | |
33 #include "c-family/c-pragma.h" | |
34 #include "substring-locations.h" | |
35 | |
36 int plugin_is_GPL_compatible; | |
37 | |
38 /* A custom pass for emitting dummy warnings from the middle-end. */ | |
39 | |
40 const pass_data pass_data_test_inlining = | |
41 { | |
42 GIMPLE_PASS, /* type */ | |
43 "test_inlining", /* name */ | |
44 OPTGROUP_NONE, /* optinfo_flags */ | |
45 TV_NONE, /* tv_id */ | |
46 PROP_ssa, /* properties_required */ | |
47 0, /* properties_provided */ | |
48 0, /* properties_destroyed */ | |
49 0, /* todo_flags_start */ | |
50 0, /* todo_flags_finish */ | |
51 }; | |
52 | |
53 class pass_test_inlining : public gimple_opt_pass | |
54 { | |
55 public: | |
56 pass_test_inlining(gcc::context *ctxt) | |
57 : gimple_opt_pass(pass_data_test_inlining, ctxt) | |
58 {} | |
59 | |
60 /* opt_pass methods: */ | |
61 bool gate (function *) { return true; } | |
62 virtual unsigned int execute (function *); | |
63 | |
64 }; // class pass_test_inlining | |
65 | |
66 /* Determine if STMT is a call with NUM_ARGS arguments to a function | |
67 named FUNCNAME. | |
68 If so, return STMT as a gcall *. Otherwise return NULL. */ | |
69 | |
70 static gcall * | |
71 check_for_named_call (gimple *stmt, | |
72 const char *funcname, unsigned int num_args) | |
73 { | |
74 gcc_assert (funcname); | |
75 | |
76 gcall *call = dyn_cast <gcall *> (stmt); | |
77 if (!call) | |
78 return NULL; | |
79 | |
80 tree fndecl = gimple_call_fndecl (call); | |
81 if (!fndecl) | |
82 return NULL; | |
83 | |
84 if (strcmp (IDENTIFIER_POINTER (DECL_NAME (fndecl)), funcname)) | |
85 return NULL; | |
86 | |
87 if (gimple_call_num_args (call) != num_args) | |
88 { | |
89 error_at (stmt->location, "expected number of args: %i (got %i)", | |
90 num_args, gimple_call_num_args (call)); | |
91 return NULL; | |
92 } | |
93 | |
94 return call; | |
95 } | |
96 | |
97 /* Emit a warning at LOC. */ | |
98 | |
99 static void | |
100 emit_warning (location_t loc) | |
101 { | |
102 source_range src_range = get_range_from_loc (line_table, loc); | |
103 warning_at (loc, 0, "range %i:%i-%i:%i", | |
104 LOCATION_LINE (src_range.m_start), | |
105 LOCATION_COLUMN (src_range.m_start), | |
106 LOCATION_LINE (src_range.m_finish), | |
107 LOCATION_COLUMN (src_range.m_finish)); | |
108 } | |
109 | |
110 /* Code for simulating the emission of a warning from the middle-end. | |
111 Emit a warning for each call to a function named "__emit_warning". */ | |
112 | |
113 static void | |
114 test_inlining (gimple *stmt) | |
115 { | |
116 gcall *call = check_for_named_call (stmt, "__emit_warning", 1); | |
117 if (!call) | |
118 return; | |
119 | |
120 /* We expect an ADDR_EXPR with a STRING_CST inside it for the | |
121 initial arg. */ | |
122 tree t_addr_string = gimple_call_arg (call, 0); | |
123 if (TREE_CODE (t_addr_string) != ADDR_EXPR) | |
124 { | |
125 error_at (call->location, "string literal required for arg 1"); | |
126 return; | |
127 } | |
128 | |
129 tree t_string = TREE_OPERAND (t_addr_string, 0); | |
130 if (TREE_CODE (t_string) != STRING_CST) | |
131 { | |
132 error_at (call->location, "string literal required for arg 1"); | |
133 return; | |
134 } | |
135 | |
136 warning_at (call->location, 0, "%G%s", call, | |
137 TREE_STRING_POINTER (t_string)); | |
138 } | |
139 | |
140 /* Call test_inlining on every statement within FUN. */ | |
141 | |
142 unsigned int | |
143 pass_test_inlining::execute (function *fun) | |
144 { | |
145 gimple_stmt_iterator gsi; | |
146 basic_block bb; | |
147 | |
148 FOR_EACH_BB_FN (bb, fun) | |
149 for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi)) | |
150 { | |
151 gimple *stmt = gsi_stmt (gsi); | |
152 test_inlining (stmt); | |
153 } | |
154 | |
155 return 0; | |
156 } | |
157 | |
158 /* Entrypoint for the plugin. Create and register the custom pass. */ | |
159 | |
160 int | |
161 plugin_init (struct plugin_name_args *plugin_info, | |
162 struct plugin_gcc_version *version) | |
163 { | |
164 struct register_pass_info pass_info; | |
165 const char *plugin_name = plugin_info->base_name; | |
166 int argc = plugin_info->argc; | |
167 struct plugin_argument *argv = plugin_info->argv; | |
168 | |
169 if (!plugin_default_version_check (version, &gcc_version)) | |
170 return 1; | |
171 | |
172 pass_info.pass = new pass_test_inlining (g); | |
173 pass_info.reference_pass_name = "*warn_function_noreturn"; | |
174 pass_info.ref_pass_instance_number = 1; | |
175 pass_info.pos_op = PASS_POS_INSERT_AFTER; | |
176 register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, | |
177 &pass_info); | |
178 | |
179 return 0; | |
180 } |