https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84742
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-03-08 CC| |msebor at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> --- I have reproduced it (intermittently) with revisions as recent as r258160, but only with ASLR enabled. The valgrind errors for sparseset_bit_p are expected and go away --with-enable-valgrind-annotations. I don't see any other errors in my report and I can't reproduce it without ASLR or under GDB so there isn't much to go on. $ /opt/notnfs/gcc-bisect/obj/gcc/cc1plus.258160 -quiet -O3 -fpermissive -fno-toplevel-reorder -std=c++14 -o/dev/null t.C during RTL pass: reload t.C: In function ‘void a()’: t.C:10:1: internal compiler error: in process_alt_operands, at lra-constraints.c:2112 } ^ 0x1013ddb process_alt_operands ../../gcc/lra-constraints.c:2112 0x10187ca curr_insn_transform ../../gcc/lra-constraints.c:3860 0x101c13f lra_constraints(bool) ../../gcc/lra-constraints.c:4877 0x1004f6f lra(_IO_FILE*) ../../gcc/lra.c:2419 0xfac579 do_reload ../../gcc/ira.c:5465 0xfaca6c execute ../../gcc/ira.c:5649