c++: new size folding [PR118775]

r15-7893 added a workaround for a case where we weren't registering (long)&a
as invalid in a constant-expression, because build_new_1 had folded away the
CONVERT_EXPR that we rely on to diagnose that problem.  In general we want
to defer most folding until cp_fold_function, so let's fold less here.  We
mainly want to expose constant size so we can treat it differently, and we
already did any constexpr evaluation when initializing cst_outer_nelts, so
fold_to_constant seems like the right choice.

	PR c++/118775

gcc/cp/ChangeLog:

	* constexpr.cc (cxx_eval_call_expression): Add assert.
	(fold_to_constant): Handle processing_template_decl.
	* init.cc (build_new_1): Use fold_to_constant.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp2a/constexpr-new24.C: Adjust diagnostic.

0 files changed, 0 insertions, 0 deletions