[Bug c++/63455] [4.8/4.9/5 Regression] decltype of statement expression internal compiler error: in cp_parser_abort_tentative_parse, at cp/parser.c:25062

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63455

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Wed Oct 15 14:12:24 2014
New Revision: 216260

URL: https://gcc.gnu.org/viewcvs?rev=216260&root=gcc&view=rev
Log:
    PR c++/63455
c-family/
    * c-common.h (CPP_PREPARSED_EXPR): New.
    (N_CP_TTYPES): Adjust.
cp/
    * parser.c (struct saved_token_sentinel): New.
    (cp_parser_statement): Use it.
    (cp_parser_start_tentative_firewall): New.
    (cp_parser_end_tentative_firewall): New.
    (cp_parser_lambda_expression): Use them.
    (cp_parser_statement_expr): New.
    (cp_parser_primary_expression): Use it.

Added:
    trunk/gcc/testsuite/g++.dg/ext/stmtexpr16.C
Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-common.h
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-sfinae1.C