https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98651
Bug ID: 98651
Summary: unused code found in function analyze_functions:1194
Product: gcc
Version: new-ra
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: ashimida at linux dot alibaba.com
Target Milestone: ---
In function "analyze_functions"[1]:1194, the value of "changed" should always
be "true" and the fprintf will output nothing.
codes in line [1194,1195] should be deleted.
1173 while (changed)
1174 {
1175 changed = false;
1176 process_function_and_variable_attributes (first_analyzed,
1177 first_analyzed_var);
1178
1179 /* First identify the trivially needed symbols. */
1180 for (node = symtab->first_symbol ();
1181 node != first_analyzed
1182 && node != first_analyzed_var; node = node->next)
1183 {
1184 /* Convert COMDAT group designators to IDENTIFIER_NODEs. */
1185 node->get_comdat_group_id ();
1186 if (node->needed_p ())
1187 {
1188 enqueue_node (node);
1189 if (!changed && symtab->dump_file)
1190 fprintf (symtab->dump_file, "Trivially needed symbols:");
1191 changed = true;
1192 if (symtab->dump_file)
1193 fprintf (symtab->dump_file, " %s", node->dump_asm_name
());
1194 if (!changed && symtab->dump_file)
1195 fprintf (symtab->dump_file, "\n");
1196 }
1197 if (node == first_analyzed
1198 || node == first_analyzed_var)
1199 break;
1200 }
[1]:https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/cgraphunit.c;h=cf64e56ab951a0a757e507f59c236523b003a6be;hb=HEAD
