File: ChangeLog

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isl 0.20-2
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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
---
version: 0.17.1
date: Fri May  6 12:02:48 CEST 2016
changes:
	- fix bug in coalescing treatment
---
version: 0.17
date: Tue May  3 14:26:43 CEST 2016
changes:
	- optionally combine SCCs incrementally in scheduler
	- optionally maximize coincidence in scheduler
	- optionally avoid loop coalescing in scheduler
	- fix handling of nested integer divisions
	- optionally detect min/max expressions during AST generation
	- minor AST generator improvements
	- simplify stride constraints
	- improve support for expansions in schedule trees
---
version: 0.16.1
date: Thu Jan 14 18:08:06 CET 2016
changes:
	- fix bug in simplification
---
version: 0.16
date: Tue Jan 12 09:56:16 CET 2016
changes:
	- add 32 bit integer optimization for IMath
	- minor AST generator improvements
	- add isl_union_flow_get_full_{may,must}_dependence
	- minor improvements to Python bindings
	- minor improvements to set and map printing
---
version: 0.15
date: Thu Jun 11 12:45:33 CEST 2015
changes:
	- improve coalescing
	- add isl_union_access_info_compute_flow
	- add mark nodes in AST
	- add isl_union_pw_aff and isl_multi_union_pw_aff
	- add schedule trees
	- deprecate band forests
	- deprecate separation_class AST generation option
	- introduce isl_bool and isl_stat types
---
version: 0.14.1
date: Thu Apr  9 12:57:23 CEST 2015
changes:
	- fix bug in affine expression normalization
	- fix handling of conditional validity constraints
---
version: 0.14
date: Sat Oct 25 16:08:47 CEST 2014
changes:
	- support IMath as an optional replacement for GMP
	- minor AST generator improvements
---
version: 0.13
date: Mon Apr 14 11:08:45 CEST 2014
changes:
	- deprecate isl_int
	- improved support for multi piecewise quasi-affine expressions
	- allow the user to impose a bound on the number of low-level operations
	- add isl_id_to_ast_expr and isl_id_to_pw_aff
	- add isl_schedule_constraints
	- hide internal structure of isl_vec
	- remove support for piplib
---
version: 0.12.2
date: Sun Jan 12 12:09:46 CET 2014
changes:
	- MinGW-w64 build fix
	- fix simplification bug
---
version: 0.12.1
date: Wed Jul 24 12:54:46 CEST 2013
changes:
	- handle malloc returning NULL on zero-size allocation
	- fix regression in AST generator
---
version: 0.12
date: Sun Jun 23 20:23:05 CEST 2013
changes:
	- add isl_val abstraction
---
version: 0.11.2
date: Tue Apr  9 18:45:10 CEST 2013
changes:
	- make code generation output the same on Solaris
	- fix some hard to trigger bugs
---
version: 0.11.1
date: Mon Dec 10 11:55:30 CET 2012
changes:
	- add LICENSE file to distribution
	- make code generation output independent of endianness
---
version: 0.11
date: Mon Dec  3 08:17:18 CET 2012
changes:
	- change license from LGPL 2.1 to MIT
	- add support for multi piecewise quasi-affine expressions
	- add code generation
	- various minor bug fixes
---
version: 0.10
date: Sun Jun  3 18:00:16 CEST 2012
changes:
	- support for interaction with dependence analysis
	- add public API for vectors
	- improved support for (piecewise) multi quasi-affine expressions
	- various minor bug fixes
---
version: 0.09
date: Sat Dec 17 18:19:26 CET 2011
changes:
	- improved argument parsing
	- hide internal structure of isl_options
	- improved support for parameter sets
	- configurable scheduling
---
version: 0.08
date: Fri Oct 21 12:36:20 CEST 2011
changes:
	- improved parsing
	- drop isl_div abstraction
	- rename isl_dim to isl_space
	- |-
	  explicitly differentiate between spaces of maps,
	  sets and parameter sets
	- add support for identifiers
	- add support for (piecewise) multi quasi-affine expressions
	- preliminary Python bindings
---
version: 0.07
date: Tue Jul 12 19:34:51 CEST 2011
changes:
	- hide internal structures of isl_div and isl_constraint
	- preliminary scheduling
	- add support for local spaces and (piecewise) quasi-affine expressions
---
version: 0.06
date: Fri Mar 18 15:59:16 CET 2011
changes:
	- improved parsing
	- consistency changes in API
	- hide internal structure of isl_ctx
---
version: 0.05.1
date: Wed Jan  5 10:21:42 CET 2011
changes:
	- fix simple symmetry detection in parametric integer programming
---
version: 0.05
date: Thu Dec 23 17:03:14 CET 2010
changes:
	- rename header files from isl_header.h to isl/header.h
	- add higher level interface for dependence analysis
	- improved argument parsing
	- optionally triangulate domains during Bernstein expansion
	- support extended PolyLib format
	- hide internal structure of some data types
	- improved coalescing
	- add simple symmetry detection in parametric integer programming
---
version: 0.04
date: Fri Sep 10 12:57:50 CEST 2010
changes:
	- rename isl_pw_qpolynomial_fold_add
	- add isl_map_apply_pw_qpolynomial_fold
	- support named and nested spaces
	- support union sets and maps
	- add public API for matrices
---
version: 0.03
date: Tue Jun 29 13:16:46 CEST 2010
changes:
	- new printing functions
	- support for "may" accesses in dependence analysis
	- improved coalescing
	- improved transitive closure
	- fix several hard to trigger bugs
	- improved argument parsing
	- support parametric vertex enumeration for barvinok
	- optionally use Bernstein expansion to compute bounds