RF[DA]: fix execute/931004-10.c regressions

[Joern Rennecke]

Richard Henderson wrote:
> Actually, I don't know what SIZE is.  I think it's the size of the
> MEM itself.  It's not redundant when the MEM is BLKmode.  That's
> what the code in set_mem_attributes seems to do, anyway.

The debugger said that SIZE was eight, even though the MEM referred
to just two bytes, and that was even so before you patch.  Is that
another bug?
	
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