https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117136
--- Comment #1 from anlauf at gcc dot gnu.org --- Running f951 under valgrind I see: ==5119== Conditional jump or move depends on uninitialised value(s) ==5119== at 0xAF2DFC: gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*, gfc_expr*, vec<tree_node*, va_gc, vl_embed>*) (trans-expr.cc:8256) ==5119== by 0xAF7DDD: gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*, gfc_expr*, vec<tree_node*, va_gc, vl_embed>*) (trans-expr.cc:6831) ==5119== by 0xB51AE2: gfc_trans_call(gfc_code*, bool, tree_node*, tree_node*, bool) (trans-stmt.cc:425) ==5119== by 0xAB0F13: trans_code(gfc_code*, tree_node*) (trans.cc:2434) ==5119== by 0xAE8214: gfc_generate_function_code(gfc_namespace*) (trans-decl.cc:7958) ==5119== by 0xAB64C1: gfc_generate_module_code(gfc_namespace*) (trans.cc:2780) ==5119== by 0xA56F8A: translate_all_program_units(gfc_namespace*) (parse.cc:7159) ==5119== by 0xA57989: gfc_parse_file() (parse.cc:7489) ==5119== by 0xAADBEF: gfc_be_parse_file() (f95-lang.cc:241) ==5119== by 0x111DB4D: compile_file() (toplev.cc:451) ==5119== by 0x99CEDE: do_compile (toplev.cc:2209) ==5119== by 0x99CEDE: toplev::main(int, char**) (toplev.cc:2369) ==5119== by 0x99E89A: main (main.cc:39) The offending line is traced back to r15-4298-g3269a722b7a036 by Tobias. Can you try the following patch? diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc index b9f585d0d2f..2f6d3b06889 100644 --- a/gcc/fortran/trans-expr.cc +++ b/gcc/fortran/trans-expr.cc @@ -6378,7 +6381,7 @@ gfc_conv_procedure_call (gfc_se * se, gfc_symbol * sym, gfc_actual_arglist *arg; int has_alternate_specifier = 0; bool need_interface_mapping; - bool is_builtin; + bool is_builtin = false; bool callee_alloc; bool ulim_copy; gfc_typespec ts;
