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On 6/20/11 10:39 AM, Justin Holewinski wrote:
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<div>For the PTX back-end, I would like to introduce a
configure-time option to determine the number of architectural
registers available to LLVM register allocation during code
generation. The motivation for this is PTX is a virtual
instruction set and the number of registers is configurable in
the output file. Thus, the number of registers specified via
tablegen is arbitrary. For different use-cases, it may be
desirable to change this number.</div>
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<br>
Is it possible to make this option a command-line option to llc
instead of a configure-time option?<br>
<br>
In my experience, it's better to make these options command-line
options to tools when possible; that way, when someone wants to
experiment with changing the parameter, they do not need to
recompile.<br>
<br>
-- John T.<br>
<br>
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