Determining a functions parameter and return registers

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Article #50480

#50480

From: David &
Date: Fri, 24 Sep 1993 17:33

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I'm adding a stage to the gcc-2.4.5 compiler and I need to determine
for each function what hard registers are being used for parameters and
return values.

It seems I can use current_function_return_rtx to get the return
register and its mode (and thus the hard registers being used) but
things don't seem as straight forward for the parameters. Can I 
look through the DECL_INCOMING_RTL for the parameter registers or is
there a better way.

Thanks,

David

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From: goodwin@endive.eecs.ucdavis.edu (David &)
Subject: Determining a functions parameter and return registers
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Date: Fri, 24 Sep 1993 17:33:39 GMT
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