Am 31.10.19 um 20:11 schrieb Marco van de Voort:
Op 2019-10-30 om 23:02 schreef Florian Klämpfl:
Yes. And manually adding inline is only as good as the knowledge of
the user doing so. If somebody implements it right (I did not, I used
the easiest approach and used an existing function to estimate the
complexity of a subroutine). The compiler can just count the number of
the generate instructions or even calculate the length of the
procedure and then decide to keep the node tree for inlining.
Well, it depends of course of what happens when. Would you really count
final instructions or cycles after all optimization and peephole passes ?
This is not really an issue: actually for inlining mainly
instructions/code length matters and e.g. the arm compiler even does
this (actually something more complex) as it has to insert the constant
tables at the right locations into the code because the relative offsets
are limited.
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