https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107193
--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
1212 /* Traverse the basic block, if two function calls within a basic
block
1213 are mapped to the same line, assign a new discriminator because a
call
1214 stmt could be a split point of a basic block. */
1215 for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
1216 {
1217 gimple *stmt = gsi_stmt (gsi);
1218 expanded_location curr_locus_e;
Shouldn't curr_locus_e be defined outside of the loop?
orelse, the second iteration, it will be uninitialized and pased to
same_line_p？
1219 if (curr_locus == UNKNOWN_LOCATION)
1220 {
1221 curr_locus = gimple_location (stmt);
1222 curr_locus_e = expand_location (curr_locus);
1223 }
1224 else if (!same_line_p (curr_locus, &curr_locus_e,
gimple_location (stmt)))
1225 {
1226 curr_locus = gimple_location (stmt);
1227 curr_locus_e = expand_location (curr_locus);
1228 curr_discr = 0;
1229 }
1230 else if (curr_discr != 0)
1231 {
1232 location_t loc = gimple_location (stmt);
1233 location_t dloc = location_with_discriminator (loc,
curr_discr);
1234 gimple_set_location (stmt, dloc);
1235 }
1236 /* Allocate a new discriminator for CALL stmt. */
1237 if (gimple_code (stmt) == GIMPLE_CALL)
1238 curr_discr = next_discriminator_for_locus (curr_locus);
1239 }
