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111
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1 /* This plugin tests the correct operation of a PLUGIN_START_UNIT callback.
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2 * By the time a PLUGIN_START_UNIT callback is invoked, the frontend
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3 * initialization should have completed. At least the different *_type_nodes
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4 * should have been created. This plugin creates an artificial global
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5 * interger variable.
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6 *
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7 */
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8 #include "gcc-plugin.h"
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9 #include "config.h"
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10 #include "system.h"
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11 #include "coretypes.h"
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12 #include "tm.h"
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13 #include "tree.h"
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14 #include "stringpool.h"
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15 #include "toplev.h"
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16 #include "basic-block.h"
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17 #include "hash-table.h"
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18 #include "vec.h"
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19 #include "ggc.h"
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20 #include "basic-block.h"
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21 #include "tree-ssa-alias.h"
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22 #include "internal-fn.h"
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23 #include "gimple-fold.h"
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24 #include "tree-eh.h"
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25 #include "gimple-expr.h"
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26 #include "is-a.h"
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27 #include "gimple.h"
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28 #include "tree.h"
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29 #include "tree-pass.h"
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30 #include "intl.h"
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31
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32 int plugin_is_GPL_compatible;
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33 static tree fake_var = NULL;
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34
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35 static bool
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36 gate_start_unit (void)
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37 {
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38 return true;
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39 }
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40
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41 static void start_unit_callback (void *gcc_data, void *user_data)
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42 {
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43 if (integer_type_node) {
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44 fake_var = build_decl (UNKNOWN_LOCATION, VAR_DECL,
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45 get_identifier ("_fake_var_"),
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46 integer_type_node);
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47 TREE_PUBLIC (fake_var) = 1;
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48 DECL_ARTIFICIAL (fake_var) = 1;
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49 }
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50 }
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51
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52 static void finish_unit_callback (void *gcc_data, void *user_data)
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53 {
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54 if (fake_var == NULL) {
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55 printf ("fake_var not created \n");
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56 return;
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57 }
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58 if (TREE_CODE (fake_var) != VAR_DECL) {
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59 printf ("fake_var not a VAR_DECL \n");
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60 return;
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61 }
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62 if (TREE_CODE (TREE_TYPE (fake_var)) != INTEGER_TYPE) {
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63 printf ("fake_var not INTEGER_TYPE \n");
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64 return;
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65 }
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66 if (DECL_ARTIFICIAL (fake_var) == 0) {
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67 printf ("fake_var not ARTIFICIAL \n");
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68 return;
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69 }
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70 }
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71
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72 int plugin_init (struct plugin_name_args *plugin_info,
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73 struct plugin_gcc_version *version)
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74 {
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75 register_callback ("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL);
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76 register_callback ("finish_unit", PLUGIN_FINISH_UNIT, &finish_unit_callback, NULL);
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77 return 0;
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78 }
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