https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102285
--- Comment #16 from Qing Zhao <qing.zhao at oracle dot com> --- > On Oct 1, 2021, at 1:51 AM, rguenth at gcc dot gnu.org > <gcc-bugzi...@gcc.gnu.org> wrote: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102285 > > --- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> --- > Because the variable doesn't need to be addressable. One question: For the following statement in the routine “fold_builtin_alloca_with_align” in tree-ssa-ccp.c: /* Fold alloca to the address of the array. */ return fold_convert (TREE_TYPE (lhs), build_fold_addr_expr (var)); Clearly, we build a add_expr for “var”, but why not “mark_addressable” for “var” since its address is taken?
