Faster compilation speed

[Paul Koning]

>>>>> "Joe" == Joe Buck <Joe.Buck@synopsys.com> writes:

 Joe> Robert Dewar writes:
 >> But remember that work you put in on speeding up the compiler is
 >> work that you do not put in on improving the compiler. As time
 >> goes on, quality of generated code continues to be critical,
 >> compiler speed is less critical.

 Joe> Um, possibly you forget that in order to get a change accepted,
 Joe> the contributor has to do a three-stage bootstrap with the
 Joe> compiler and run the regressions.  If that process ran three
 Joe> times faster, contributors could try three times as many
 Joe> versions of possible patches in the same time period.

Yes indeed.  On a reasonable PC (a 2-year old laptop) a single
iteration of that process takes many hours.

	  paul