Crashes on PPC VMX tests

[Mark Mitchell]

Nathan --

I'm seeing build_int_cst assertion failures on gcc.dg/vmx/debug-3.c and 
a bunch of other tests.  These are on powerpc64-none-linux-gnu; probably 
reproducable with a cross-compiler.

(The overall DejaGNU results on this platform are not very pretty, but 
most of the other problems do not seem to have to do with your change.)

Thanks,

-- 
Mark Mitchell
CodeSourcery, LLC
(916) 791-8304
mark@codesourcery.com