[Bug c/52534] gcc doesn't detect incorrect expression in call to va_start
pinskia at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Thu Mar 15 09:49:00 GMT 2012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52534
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 09:41:38 UTC ---
/* Strip off all nops for the sake of the comparison. This
is not quite the same as STRIP_NOPS. It does more.
We must also strip off INDIRECT_EXPR for C++ reference
parameters. */
while (CONVERT_EXPR_P (arg)
|| TREE_CODE (arg) == INDIRECT_REF)
arg = TREE_OPERAND (arg, 0);
Why are we stripping off the NOPS here. This is in fold_builtin_next_arg
(builtins.c).
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