https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66338
Andreas Krebbel <krebbel at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |krebbel at gcc dot gnu.org --- Comment #10 from Andreas Krebbel <krebbel at gcc dot gnu.org> --- (In reply to ville from comment #9) > Author: ville > Date: Fri May 27 14:08:37 2016 > New Revision: 236822 > > URL: https://gcc.gnu.org/viewcvs?rev=236822&root=gcc&view=rev > Log: > 2016-05-24 Ville Voutilainen <ville.voutilai...@gmail.com> > > PR libstdc++/66338 > * include/std/tuple (_TMC): Add a check for _NotSameTuple. > * include/std/tuple (tuple(_UElements&&...)): Remove the separate > check for _NotSameTuple. > * include/std/tuple (_TMCT): New. > * include/std/tuple (tuple(const tuple<_UElements...>&)): Use it. > * include/std/tuple (tuple(tuple<_UElements...>&&)): Likewise. > * include/std/tuple (tuple(allocator_arg_t, const _Alloc&, > const tuple<_UElements...>&)): Likewise. > * include/std/tuple (tuple(allocator_arg_t, const _Alloc&, > tuple<_UElements...>&&)): Likewise. > * testsuite/20_util/tuple/cons/66338.cc: New. S/390 32 bit bootstrap appears to fail in stage 2 starting with that change: In file included from /home/andreas/clean/../gcc/gcc/config/s390/s390.c:41:0: /home/andreas/clean/../gcc/gcc/recog.h: In function 'rtx_def* s390_expand_builtin(tree, rtx, rtx, machine_mode, int)': /home/andreas/clean/../gcc/gcc/recog.h:306:136: error: 'op[5]' may be used uninitialized in this function [-Werror=maybe-uninitialized] rtx_insn * operator () (rtx a0, rtx a1, rtx a2, rtx a3, rtx a4, rtx a5, rtx a6) const { return ((f7)func) (a0, a1, a2, a3, a4, a5, a6); } ^ /home/andreas/clean/../gcc/gcc/config/s390/s390.c:799:7: note: 'op[5]' was declared here rtx op[MAX_ARGS], pat; ^~