On Thu, Jul 08, 2010 at 06:17:49PM -0700, Roland McGrath wrote:
> It's pretty hard to imagine what you could preserve across builds of
> nontrivially nonidentical source trees that would continue to line up at
> the basic block level where it's meaningful to the compiler.  Perhaps you
> could do something reduced to terms of source line locations, or number of
> basic blocks into a named function, or something.  But it sounds very iffy.

Can the results be folded back into the source code in any way,
eg as comments or __attributes__?

Rich.

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