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Re: [tree-ssa] Fix gcc.dg/tree-ssa/20030530-2.c
On 11 Jun 2003 14:43:32 -0400, Diego Novillo <email@example.com> wrote:
>> My gut is telling me that we should bite the bullet and sort the
>> vuses based on some stable criteria.
> Agreed. What I was proposing is to have them topologically sorted using
> the tree operands. But that requires having separate sets for each
> operand. The simplicity of the current scheme is that you have
> everything in a single set. And that is giving us grief now.
>> Can you refresh my memory as to what objects can appear in the VUSE
>> array? Just SSA_NAME, or do we potentially have things like
>> COMPONENT_REF, INDIRECT_REF, VAR_REF, etc?
> Just SSA_NAMEs. VUSEs are typically emitted for aliases. But we also
> use VUSE/VDEFs for aggregate types.
Heck, if we only have to deal with SSA_NAMEs, which are unique (right?), we
can just sort by address.