Faster compilation speed

[Will Cohen]

How about reordering the rows and columns in the table used by yyparse 
to improve locality?  Have a instrumented version of the yyparse to 
record the number of times each transition is taken and use the data to 
interchange rows and columns to attempt to get frequent transitions in 
the same cache line (or at least not conflicting memory locations). It 
would be a kind of feedback-directed optimization 
(-fprofile-arcs/-fbranch-probabilities) for bison.

-Will

Jeff Sturm wrote:
On Tue, 13 Aug 2002, David Edelsohn wrote: