https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93583
--- Comment #10 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Richard Biener from comment #9) > Testing the patch. Points to a memleak in rs6000-driver.c: > > cache = detect_caches_linux (); > /* PPC Linux does not provide any cache information yet. */ > cache = ""; > > but that function calls describe_cache which eventually does > > return concat (l1size, " ", line, " ", l2size, " ", NULL); > > of course not really important if just called once. Hm, it fails later: Program received signal SIGSEGV, Segmentation fault. update_bb_for_insn_chain (end=0x3fffaf854c80, end=0x3fffaf854c80, bb=0x3fffaf614e68, begin=<optimized out>) at ../../gcc/cfgrtl.c:538 538 if (!BARRIER_P (insn)) Missing separate debuginfos, use: debuginfo-install glibc-2.17-260.el7_6.5.ppc64le gmp-6.0.0-15.el7.ppc64le libmpc-1.0.1-3.el7.ppc64le mpfr-3.1.1-4.el7.ppc64le (gdb) bt #0 update_bb_for_insn_chain (end=0x3fffaf854c80, end=0x3fffaf854c80, bb=0x3fffaf614e68, begin=<optimized out>) at ../../gcc/cfgrtl.c:538 #1 update_bb_for_insn (bb=0x3fffaf614e68) at ../../gcc/cfgrtl.c:548 #2 0x00000000102675f0 in expand_gimple_cond (stmt=0x3fffad17bfe0, bb=0x3fffaf614e68) at ../../gcc/cfgexpand.c:2540 #3 expand_gimple_basic_block (bb=<optimized out>, disable_tail_calls=false) at ../../gcc/cfgexpand.c:5742 #4 0x0000000010269f08 in (anonymous namespace)::pass_expand::execute (this=<optimized out>, fun=0x3fffaf5a7fe0) at ../../gcc/cfgexpand.c:6542 #5 0x00000000107e9180 in execute_one_pass (pass=0x11f1ca20) at ../../gcc/passes.c:2500 #6 0x00000000107ea2e4 in execute_pass_list_1 (pass=0x11f1ca20) at ../../gcc/passes.c:2588 #7 0x00000000107ea388 in execute_pass_list (fn=<optimized out>, pass=<optimized out>) at ../../gcc/passes.c:2599 #8 0x00000000102b84ec in cgraph_node::expand (this=0x3fffaf5e74b8) at ../../gcc/context.h:48 #9 0x00000000102ba09c in expand_all_functions () at ../../gcc/cgraphunit.c:2454 #10 symbol_table::compile (this=0x3fffaf280000) at ../../gcc/cgraphunit.c:2804 #11 0x00000000101b8918 in lto_main () at ../../gcc/lto/lto.c:658 #12 0x0000000010913cfc in compile_file () at ../../gcc/toplev.c:458 #13 0x0000000010186c9c in do_compile () at ../../gcc/toplev.c:2273 #14 toplev::main (this=0x3fffffffec80, argc=<optimized out>, argv=<optimized out>) at ../../gcc/toplev.c:2412 #15 0x0000000010188ed8 in main (argc=<optimized out>, argv=0x3ffffffff0a8) at ../../gcc/main.c:39 Maybe we should drop the MALLOC attribute in IPA SRA where we make the function void?
