[C++ PATCH] [PR c++/87814] undefer deferred noexcept on tsubst if request
tsubst_expr and tsubst_copy_and_build are not expected to handle
DEFERRED_NOEXCEPT exprs, but if tsubst_exception_specification takes a
DEFERRED_NOEXCEPT expr with !defer_ok, it just passes the expr on for
tsubst_copy_and_build to barf.
This patch arranges for tsubst_exception_specification to combine the
incoming args with those already stored in a DEFERRED_NOEXCEPT, and
then substitute them into the pattern, when retaining a deferred
noexcept is unacceptable.
Regstrapped on x86_64- and i686-linux-gnu, mistakenly along with a patch
with a known regression, and got only that known regression. Retesting
without it. Ok to install?
* pt.c (tsubst_exception_specification): Handle
DEFERRED_NOEXCEPT with !defer_ok.
Alexandre Oliva, freedom fighter https://FSFLA.org/blogs/lxo Be the change, be Free! FSF Latin America board member
GNU Toolchain Engineer Free Software Evangelist
Hay que enGNUrecerse, pero sin perder la terGNUra jamás-GNUChe