[Committed] Only allow INTEGER_CSTs of integral/pointer types.

[Roger Sayle]

Hi Andrew,

On Fri, 10 Nov 2006, Andrew Pinski wrote:
> This was also part of the patch at:
> http://gcc.gnu.org/ml/gcc-patches/2006-10/msg00566.html

Interesting!  Did anything come of Jason's patch?  It must have slipped
through my INBOX, and I missed it.  However it looks reasonable.  I'll
admit that I tried investigating PR28915 myself, only to encounter the
verify_expr issues.  I didn't think to tweak the verifier to allow
non-gimple-var but TREE_CONSTANT expressions in CONSTRUCTORS.

Jason, were there any objections to this approach?  Did it bootstrap
and regression test without problems?

Roger
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