[Bug c++/21619] [4.0/4.1 regression] __builtin_constant_p(&"Hello"[0])?1:-1 not compile-time constant

Sun, 05 Jun 2005 09:34:00 -0700 

------- 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:     [EMAIL PROTECTED]       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

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