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c21c89b138
* libguile/vm-i-system.c (fix-closure): New instruction, for wiring together fixpoint procedures. * module/Makefile.am (TREE_IL_LANG_SOURCES): Add fix-letrec.scm. * module/language/glil/compile-assembly.scm (glil->assembly): Reindent the <glil-lexical> case, and handle 'fix for locally-bound vars. * module/language/tree-il.scm (<fix>): Add the <fix> tree-il type and accessors, for fixed-point bindings. This IL construct is taken from the Waddell paper. (parse-tree-il, unparse-tree-il, tree-il->scheme, tree-il-fold) (pre-order!, post-order!): Update for <fix>. * module/language/tree-il/analyze.scm (analyze-lexicals): Update for <fix>. The difference here is that the bindings may not be assigned, and are not marked as such. They are not boxed. (report-unused-variables): Update for <fix>. * module/language/tree-il/compile-glil.scm (flatten): Compile <fix> to GLIL. * module/language/tree-il/fix-letrec.scm: A stub implementation of fixing letrec -- will flesh out in a separate commit. * module/language/tree-il/inline.scm: Fix license, it was mistakenly added with LGPL v2.1+. * module/language/tree-il/optimize.scm (optimize!): Run the fix-letrec! pass. |
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| tree-il.scm | ||