Hi! I've noticed that target MIC compiler from trunk hangs forever in lto_input_mode_table in this loop, even on simple testcases.
On Wed, Feb 18, 2015 at 11:00:35 +0100, Jakub Jelinek wrote: + /* First search just the GET_CLASS_NARROWEST_MODE to wider modes, + if not found, fallback to all modes. */ + int pass; + for (pass = 0; pass < 2; pass++) + for (machine_mode mr = pass ? VOIDmode + : GET_CLASS_NARROWEST_MODE (mclass); + pass ? mr < MAX_MACHINE_MODE : mr != VOIDmode; + pass ? mr = (machine_mode) (m + 1) + : mr = GET_MODE_WIDER_MODE (mr)) + if (GET_MODE_CLASS (mr) != mclass + || GET_MODE_SIZE (mr) != size + || GET_MODE_PRECISION (mr) != prec + || GET_MODE_INNER (mr) != inner + || GET_MODE_IBIT (mr) != ibit + || GET_MODE_FBIT (mr) != fbit + || GET_MODE_NUNITS (mr) != nunits) + continue; Given that gomp-4_1-branch works ok, the problem was introduced somewhere between 9 and 31 Jul. I'll try to find the revision. -- Ilya
