Crashes on PPC VMX tests

[Mark Mitchell]

Nathan Sidwell wrote:

> Mark Mitchell wrote:
>
>> 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.
>
> this fixes this rs6000 specific breakage.  we were using copy_node to 
> create
> a new type, because build_type_copy is not applicable here. I'm guessing
> copy_node worked ok because TYPE_NEXT_VARIANT, TYPE_POINTER_TO and
> TYPE_REFERENCE_TO happened to be NULL at this point.

Makes sense.

> I decided to create build_distinct_type_copy and rename 
> build_type_copy to
> build_variant_type_copy, to make the distinction between these to 
> functions,
> er, distinct.
>
> Andrew, it might be that the patch for the objc failure you told me about
> will want to use one of these new functions.
>
> booted and tested on i686-pc-linux-gnu, and built and tested on
> powerpc64-unknown-linux-gnu, ok? 

Yes.

-- 
Mark Mitchell
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mark@codesourcery.com