[C++ PATCH] Remove uses of TREE_CONSTANT_OVERFLOW

["Roger Sayle" <roger at eyesopen dot com>]

The following patch removes the remaining uses of TREE_CONSTANT_OVERFLOW
from the C++ front-end.  The approach is to replace this "old" macro with
the preferred TREE_OVERFLOW in call.c:null_ptr_cst_p, and in
ignore_overflows to simplify the code that only now needs to
ignore/propagate TREE_OVERFLOW.

The following patch has been tested on i686-pc-linux-gnu, with a full
"make bootstrap", all default languages, and regression tested with a
top-level "make -k check" with no new failures.

Ok for mainline?


2007-01-18  Roger Sayle  <roger@eyesopen.com>

        * call.c (null_ptr_cst_p): Replace use of TREE_CONSTANT_OVERFLOW with
        TREE_OVERFLOW.
        * typeck.c (ignore_overflows): Remove the remaining uses of
        TREE_CONSTANT_OVERFLOW.

Roger
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Attachment: patchc.txt
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