[Bug bootstrap/62077] --with-build-config=bootstrap-lto fails,

["rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62077

--- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ok, so what happens is that for build/genconfig.o we in one case write
a STRING_CST with a const char[7] with itself as main-variant and in
the other case with char[7] as main-variant.  The STRING_CST is
written from ipa_write_jump_function

4237        case IPA_JF_CONST:
4238          gcc_assert (
4239              EXPR_LOCATION (jump_func->value.constant.value) ==
UNKNOWN_LOCATION);
4240          stream_write_tree (ob, jump_func->value.constant.value, true);
4241          break;

as &"#endif"[0]

Its type main variant is built in c-family/c-common.c:1021 and the literal
itself in builtins.c:13383.

And we indeed get differences in inline_param2 (min size), otherwise no
visible differences anywhere in dumps.

Not sure how that can explain the type difference for the jump function
though...

Again, this is build/genconfig.o as compiled by stage1 cc1plus vs. stage2
cc1plus (so faster to reproduce / bisect).