Simplify (- (- x)) for rationals
authorPaul Khuong <pvk@pvk.ca>
Wed, 22 May 2013 03:43:03 +0000 (23:43 -0400)
committerPaul Khuong <pvk@pvk.ca>
Wed, 22 May 2013 05:13:22 +0000 (01:13 -0400)
commit11dc847696f9c5441c409ce5b7fdf77cf27746c5
tree90842f4a4ea6eff35a80d9644bfb0ba3b293cf56
parent46602bb31b943b1793da732781586c032333c907
Simplify (- (- x)) for rationals

 The transform is trivial enough to execute without a real pattern
 matching framework, but we're close to the limit.
src/compiler/srctran.lisp