https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #19 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Joost VandeVondele from comment #17) > Thanks Marc, I don't have write access, but I can try to dg-ify the testcase > from comment #3.. however, first test, it still seems to contain a call to > builtin_malloc at -O2, seems to work at -O3... expected ? Yes, at -O2 you don't have a call to memset, so my patch does nothing. It is the same as my C++ testcase basically, so we don't really need the extra testcase. > Also, my nightly CP2K tester fails with : > > 0xa63a0f crash_signal > ../../gcc/gcc/toplev.c:337 > 0x871f76 bb_seq_addr > ../../gcc/gcc/gimple.h:1389 > 0x871f76 gsi_start_bb > ../../gcc/gcc/gimple-iterator.h:118 > 0x871f76 gsi_for_stmt(gimple_statement_base*) > ../../gcc/gcc/gimple-iterator.c:620 > 0xbfe1c1 handle_builtin_memset > ../../gcc/gcc/tree-ssa-strlen.c:1653 > 0xbfe1c1 strlen_optimize_stmt > ../../gcc/gcc/tree-ssa-strlen.c:1917 > 0xbfe1c1 strlen_dom_walker::before_dom_children(basic_block_def*) > ../../gcc/gcc/tree-ssa-strlen.c:2096 > 0xfa483a dom_walker::walk(basic_block_def*) > ../../gcc/gcc/domwalk.c:177 > 0xbf963d execute > ../../gcc/gcc/tree-ssa-strlen.c:2170 > Please submit a full bug report, > > which I suppose is related to this patch... I'll see if I can get a testcase. Yes, please open a new PR with the testcase and Cc: me, thanks.
