https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84152
David Malcolm <dmalcolm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dmalcolm at gcc dot gnu.org --- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> --- Thanks for filing this; I was able to reproduce it on one machine, with gcc 7 but not gcc 8. Am investigating further. internal compiler error: in predicate_mem_writes, at tree-if-conv.c:2252 void AliAnalysisTaskZDCTree::UserExec(Option_t * ) ^~~~~~~~~~~~~~~~~~~~~~ 0x5bfb02 predicate_mem_writes ../../src/gcc/tree-if-conv.c:2252 0x5bfb02 combine_blocks ../../src/gcc/tree-if-conv.c:2377 0xbef9bf tree_if_conversion(loop*) ../../src/gcc/tree-if-conv.c:2883 0xbeffdb execute ../../src/gcc/tree-if-conv.c:2961 2252 gcc_assert (TREE_CODE (cond) == SSA_NAME); (gdb) call debug_tree (cond) <integer_cst 0x7ffff18ce210 type <boolean_type 0x7ffff18cbb28 bool> constant 0>