https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63165
--- Comment #2 from Pat Haugen <pthaugen at gcc dot gnu.org> --- Created attachment 33449 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33449&action=edit reduced testcase Reduced testcase from 435.gromacs build failure. [pthaugen@igoo delta]$ ~/install/gcc/trunk/bin/gcc -c -m64 -O1 -mcpu=power8 do_gct.c do_gct.c: In function 'do_coupling': do_gct.c:72:1: internal compiler error: in find_reloads, at reload.c:4087 } ^ 0x1064df97 find_reloads(rtx_insn*, int, int, int, short*) /home/pthaugen/src/gcc/trunk/gcc/gcc/reload.c:4087 0x10661c2b calculate_needs_all_insns /home/pthaugen/src/gcc/trunk/gcc/gcc/reload1.c:1515 0x10661c2b reload(rtx_insn*, int) /home/pthaugen/src/gcc/trunk/gcc/gcc/reload1.c:1003 0x10510923 do_reload /home/pthaugen/src/gcc/trunk/gcc/gcc/ira.c:5323 0x10510923 execute /home/pthaugen/src/gcc/trunk/gcc/gcc/ira.c:5470 Please submit a full bug report,
