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[Bug c++/21619] [4.0/4.1 regression] __builtin_constant_p(&"Hello"[0])?1:-1 not compile-time constant
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Jun 2005 16:33:55 -0000
- Subject: [Bug c++/21619] [4.0/4.1 regression] __builtin_constant_p(&"Hello"[0])?1:-1 not compile-time constant
- References: <20050517114202.21619.rguenth@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-06-05 16:33 -------
Subject: Bug 21619
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: mmitchel@gcc.gnu.org 2005-06-05 16:33:45
Modified files:
gcc/cp : ChangeLog cp-tree.h parser.c tree.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/g++.dg/ext: builtin9.C
Log message:
PR c++/21619
* cp-tree.h (DECL_IS_BUILTIN_CONSTANT_P): New macro.
* parser.c (cp_parser_postfix_expression): Allow non-constant
expressions as arguments to __builtin_constant_p.
* tree.c (builtin_valid_in_constant_expr_p): Use
DECL_IS_BUILTIN_CONSTANT_P.
PR c++/21619
* g++.dg/ext/builtin9.C: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4774&r2=1.4775
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.1140&r2=1.1141
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/parser.c.diff?cvsroot=gcc&r1=1.335&r2=1.336
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/tree.c.diff?cvsroot=gcc&r1=1.435&r2=1.436
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5597&r2=1.5598
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/builtin9.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21619