7 commits

Author	SHA1	Message	Date
Andy Wingo	4d1ae11279	cse: expressions evaluated for effect do not provide predicates ... * module/language/tree-il/cse.scm (cse): When trying to fold conditionals, only look at entries in the database that were added in test context. * test-suite/tests/cse.test ("cse"): Add a test case.	2012-06-22 12:33:20 +02:00
Andy Wingo	63216d80de	cse passes a lookup procedure to the effects analyzer ... * module/language/tree-il/cse.scm (cse): Arrange to pass a lookup procedure to compute-effects, for better effects analysis.	2012-05-15 17:23:06 +02:00
Andy Wingo	dc1ee62046	CSE in tail position ... * module/language/tree-il/cse.scm (singly-valued-expression?, cse): Allow CSE to propagate lexicals to tail positions, if the expression is singly-valued.	2012-05-15 17:20:01 +02:00
Andy Wingo	1fb39dc55f	mvoe tree-il=? and tree-il-hash to tree-il.scm ... * module/language/tree-il.scm (tree-il=?, tree-il-hash): Move these helpers here, from cse.scm. Export them. * module/language/tree-il/cse.scm (cse): Adapt accordingly.	2012-05-15 12:25:37 +02:00
Andy Wingo	73001b06f6	fix replacement of CSE with lexical-ref ... * module/language/tree-il/cse.scm (cse): Fix dominator unrolling for lexical propagation. * test-suite/tests/cse.test ("cse"): Add test.	2012-04-23 21:52:24 +02:00
Andy Wingo	3db8f60977	cse hashing tweak ... * module/language/tree-il/cse.scm (cse): Minor tweak to hash depth based on time profile of compiling peval.scm.	2012-04-23 21:52:24 +02:00
Andy Wingo	f66cbb99ee	new pass: cse ... * module/language/tree-il/cse.scm: New pass, some simple common subexpression elimination with effects analysis. * test-suite/tests/cse.test: New test. * test-suite/Makefile.am: * module/Makefile.am: Adapt.	2012-04-23 21:52:24 +02:00