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gcc register allocation


I am in the process of verifying that gcc (3.3.2) produces traceable
object code (ie. gcc does not introduce 'hidden' structure into the
object code).

I have created a file with several functions containing various
combinations of C constructs and I intend to examine the resulting
object code (PowerPC 604 target) to determine traceability.

What I need and can't seem to find is a method of determining the
register allocation (to specific variable) for each resulting object
code function.

This 'must' be available in some debug format(?)

I could of course do this by inspection but this is subject to errors
and is time consuming.

Is there any convenient way I can get gcc to dump this information when
I compile the code?



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