Re: [Bug debug/38101] New: dbxout_expand_expr() doesn't check return value of DECL_VALUE_EXPR()

[Andrew Thomas Pinski]

Sent from my iPhone

On Nov 12, 2008, at 8:11 PM, "d dot g dot gorbachev at gmail dot com" <[EMAIL PROTECTED] 
> wrote:

tree.c:

tree
decl_value_expr_lookup (tree from)
{
 ...
 return NULL_TREE;
}

tree.h:

#define DECL_VALUE_EXPR(NODE) \
 (decl_value_expr_lookup (DECL_WRTL_CHECK (NODE)))

dbxout.c:

static rtx
dbxout_expand_expr (tree expr)
{
 switch (TREE_CODE (expr))
 ...
   case PARM_DECL:
     if (DECL_HAS_VALUE_EXPR_P (expr))
       return dbxout_expand_expr (DECL_VALUE_EXPR (expr));

DECL_VALUE_EXPR should not return null if DECL_HAS_VALUE_EXPR_P  
returns true.


 ...
}


--
          Summary: dbxout_expand_expr() doesn't check return value of
                   DECL_VALUE_EXPR()
          Product: gcc
          Version: 4.4.0
           Status: UNCONFIRMED
         Severity: normal
         Priority: P3
        Component: debug
       AssignedTo: unassigned at gcc dot gnu dot org
       ReportedBy: d dot g dot gorbachev at gmail dot com
GCC build triplet: i686-pc-linux-gnu
 GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i386-pc-mingw32


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38101