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Re: [tree-ssa] How to make DECLs that alias
On Tue, Nov 18, 2003 at 08:09:05PM -0800, Per Bothner wrote:
> Could we use whatever mechanism C++ references use?
Probably not.
> I.e. suppose bytecode verification gives us that local variable
> number 4 has type int (within a region of interest). We later
> see variable declarations "x" and "y" that map to slot 4.
>
> Then represent this as:
> jint __local_4_as_int;
> jint& x = __local_4_as_int;
> jint& y = __local_4_as_int;
If the only thing you're interested in is debugging info, then
we can invent something to mean "alias this other decl". That's
much harder for the optimizers.
r~