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[Bug middle-end/21595] [4.0/4.1 Regression] __builtin_constant_p(&"Hello"[0]) is true for C but not for C++
- 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: 17 May 2005 09:00:19 -0000
- Subject: [Bug middle-end/21595] [4.0/4.1 Regression] __builtin_constant_p(&"Hello"[0]) is true for C but not for C++
- References: <20050515213305.21595.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 2005-05-17 09:00 -------
Subject: Bug 21595
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: rguenth@gcc.gnu.org 2005-05-17 09:00:03
Modified files:
gcc : ChangeLog builtins.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/g++.dg/tree-ssa: builtin1.C
Log message:
2005-05-17 Richard Guenther <rguenth@gcc.gnu.org>
PR middle-end/21595
* builtins.c (fold_builtin_constant_p): Handle
&"string cst"[0] as constant.
* g++.dg/tree-ssa/builtin1.C: New testcase.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8814&r2=2.8815
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/builtins.c.diff?cvsroot=gcc&r1=1.461&r2=1.462
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5482&r2=1.5483
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/tree-ssa/builtin1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21595