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[Bug c++/68422] compile-time cost of sizeof... is quadratic
- From: "jason at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 25 Nov 2015 19:56:44 +0000
- Subject: [Bug c++/68422] compile-time cost of sizeof... is quadratic
- Auto-submitted: auto-generated
- References: <bug-68422-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68422
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Wed Nov 25 19:56:12 2015
New Revision: 230900
URL: https://gcc.gnu.org/viewcvs?rev=230900&root=gcc&view=rev
Log:
PR c++/68422
* cp-tree.h (PACK_EXPANSION_SIZEOF_P): New.
* parser.c (cp_parser_sizeof_pack): Set it.
* pt.c (tsubst_copy) [SIZEOF_EXPR]: Likewise.
(tsubst_pack_expansion): Improve T... shortcut when set.
Modified:
branches/gcc-5-branch/gcc/cp/ChangeLog
branches/gcc-5-branch/gcc/cp/cp-tree.h
branches/gcc-5-branch/gcc/cp/parser.c
branches/gcc-5-branch/gcc/cp/pt.c