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205 Commits

Author SHA1 Message Date
Doug Gregor
4ddd82cc89 As soon as a (partial) solution becomes worse than the best solution, stop. 
This shaves about 10% off the number of solution states explored when
type-checking the standard library, although it doesn't improve
overall time by much. In a more targeted benchmark, 1 + 2.0 + 1, we
get a 21% speedup.


Swift SVN r11033
 2013-12-09 18:13:37 +00:00
Doug Gregor
8cc1dc4535 Only consider relative scores when the fixed scores are identical. 
Swift SVN r11030
 2013-12-09 17:38:37 +00:00
Doug Gregor
79f8175e0b Solver: Keep track of a solution's score as we're computing it. 
No functionality change here; just staging for some future optimizations.


Swift SVN r11028
 2013-12-09 17:12:07 +00:00
Doug Gregor
951fd5620e Track the # of solutions computed and discarded. 
Swift SVN r11018
 2013-12-09 14:23:29 +00:00
Doug Gregor
691111eaf9 Split constraint system solution ranking into a separate source file. 
Swift SVN r11016
 2013-12-09 14:18:59 +00:00