Log Message:
isl: updated to 0.23

version: 0.23
date: Sun 01 Nov 2020 02:41:20 PM CET
changes:
        - minor improvements to coalescing
        - use build compiler to build extract_interface
        - add some convenience functions
        - ignore parameters in isl_union_* hash tables
---
version: 0.22.1
date: Sun Jan 12 10:48:18 CET 2020
changes:
        - fix error handling
---
version: 0.22
date: Fri Nov  1 18:39:30 CET 2019
changes:
        - require C++11 to generate bindings
        - improved bindings
        - scheduler fix involving fixed dimensions
        - accept ranges in tuples during parsing
        - add some convenience functions
---
version: 0.21
date: Sat Mar  9 15:25:29 CET 2019
changes:
        - preliminary C++ bindings
        - use incremental scheduler by default
        - introduce isl_size type
        - rename isl_ast_op_type to isl_ast_expr_op_type
        - fix coalescing bugs
        - use isl_bool to return extra boolean argument
---
version: 0.20
date: Sat Jul 21 18:10:08 CEST 2018
changes:
        - keep track of domain in 0D isl_multi_pw_aff and isl_multi_union_pw_aff
        - add isl_aff_eval and isl_pw_aff_eval
        - add fixed-size rectangular box hull
---
version: 0.19
date: Sat Mar  3 10:44:49 CET 2018
changes:
        - minor improvements to coalescing
        - minor improvement to parametric integer programming
        - try harder to avoid large coefficients in scheduler
        - support kill accesses in dependence analysis
        - drop deprecated isl_int
        - drop deprecated band forests
        - drop deprecated functions
---
version: 0.18
date: Sun Dec 18 11:01:58 CET 2016
changes:
        - improve elimination of redundant existentially quantified variables
        - improve coalescing
        - improve parametric integer programming
        - preserve isolate option in isl_schedule_node_band_split
        - print AST nodes in YAML format
        - minor improvements to Python bindings