https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98692
Will Schmidt <willschm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |willschm at gcc dot gnu.org --- Comment #9 from Will Schmidt <willschm at gcc dot gnu.org> --- (In reply to Segher Boessenkool from comment #5) > Have you tried a new valgrind? > > Either this is (or was) a known problem in valgrind, or it is related to > one. Cc:ing Aaron, he might know more (he wrote the GCC optimisations > that expose the problem). I've recreated against new (built out of upstream git) valgrind: with --track-origins=yes ==37507== argv[0]=./a.out ==37507== Use of uninitialised value of size 8 ==37507== at 0x10000618: main (pr9862.C:16) ==37507== Uninitialised value was created by a stack allocation ==37507== at 0x100007D4: isVariable(char*) (pr9862.C:5)