[LLVMdev] Re : How to assign a constant to a register?

[leledumbo]

> from what you say, I assume you have some kind of representation (AST or a 
> lower-level intermediate representation) from which you generate LLVM
> assembly.
> Is this representation in SSA form?

Yes, the representation is an AST. It's not in SSA yet, as it's a direct
representation of the input. I'm confused for this node:
  :=
 /  \
x    0

where x is a local variable.

> If it is, you might want to do a "copy propagation" transformation that
> replaces 
> the uses of all variables that are assigned a constant value by their 
> definitions.

I'll consider it, it would useful for constant expression.

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