Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/polly/lib/External/isl/AUTHORS

@@ -0,0 +1,46 @@
+isl was written by
+
+	    Sven Verdoolaege
+2006-2007   Leiden Institute of Advanced Computer Science
+	    Universiteit Leiden
+	    Niels Bohrweg 1
+	    2333 CA Leiden
+	    The Netherlands
+2008-2009   K.U.Leuven
+	    Departement Computerwetenschappen
+	    Celestijnenlaan 200A
+	    B-3001 Leuven
+	    Belgium
+2010-2011   INRIA Saclay - Ile-de-France
+	    Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod
+	    91893 Orsay
+	    France
+2011-2012   consultant for Leiden Institute of Advanced Computer Science
+2012-2014   Ecole Normale Superieure
+	    45 rue d'Ulm, 75230 Paris
+	    France
+2014-2015   INRIA Rocquencourt
+	    Domaine de Voluceau - Rocquencourt, B.P. 105
+	    78153 Le Chesnay
+	    France
+2015-2016   Polly Labs
+
+Contributions by
+
+Mythri Alle
+Riyadh Baghdadi
+Serge Belyshev
+Ray Donnelly
+Johannes Doerfert
+Tobias Grosser
+Alexandre Isoard
+Andreas Kloeckner
+Michael Kruse
+Sebastian Pop
+Louis-Noel Pouchet
+Benoit Pradelle
+Uday Kumar Reddy
+Andreas Simbuerger
+Sven van Haastregt
+
+The merge sort implementation was written by Jeffrey Stedfast.

external/llvm-project/polly/lib/External/isl/ChangeLog

@@ -0,0 +1,193 @@
+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

external/llvm-project/polly/lib/External/isl/GIT_HEAD_ID

@@ -0,0 +1 @@
+isl-0.18-812-g565da6e

external/llvm-project/polly/lib/External/isl/LICENSE

@@ -0,0 +1,19 @@
+MIT License (MIT)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

external/llvm-project/polly/lib/External/isl/Makefile.am

@@ -0,0 +1,442 @@
+if HAVE_CLANG
+    MAYBE_INTERFACE = interface
+endif
+SUBDIRS = . $(MAYBE_INTERFACE) doc
+DIST_SUBDIRS = $(MAYBE_INTERFACE) doc
+
+ACLOCAL_AMFLAGS = -I m4
+AUTOMAKE_OPTIONS = nostdinc subdir-objects
+
+lib_LTLIBRARIES = libisl.la
+noinst_PROGRAMS = isl_test isl_polyhedron_sample isl_pip \
+	isl_polyhedron_minimize isl_polytope_scan \
+	isl_polyhedron_detect_equalities isl_cat \
+	isl_closure isl_bound isl_schedule isl_codegen isl_test_int \
+	isl_flow isl_flow_cmp isl_schedule_cmp
+TESTS = isl_test codegen_test.sh pip_test.sh bound_test.sh isl_test_int \
+	flow_test.sh schedule_test.sh
+
+if IMATH_FOR_MP
+
+MP_SRC = \
+	isl_hide_deprecated.h \
+	isl_imath.c \
+	isl_imath.h \
+	isl_int_imath.h \
+	imath_wrap/gmp_compat.h \
+	imath_wrap/imath.h \
+	imath_wrap/imrat.h \
+	imath_wrap/wrap.h \
+	imath_wrap/gmp_compat.c \
+	imath_wrap/imath.c \
+	imath_wrap/imrat.c
+
+noinst_PROGRAMS += isl_test_imath
+TESTS += isl_test_imath
+
+if SMALL_INT_OPT
+MP_SRC += isl_int_sioimath.h \
+	isl_int_sioimath.c \
+	isl_val_sioimath.c
+else
+MP_SRC += isl_val_imath.c
+endif
+
+DEPRECATED_SRC =
+MP_INCLUDE_H =
+endif
+
+if GMP_FOR_MP
+if NEED_GET_MEMORY_FUNCTIONS
+GET_MEMORY_FUNCTIONS=mp_get_memory_functions.c
+endif
+
+MP_SRC = \
+	$(GET_MEMORY_FUNCTIONS) \
+	isl_int_gmp.h \
+	isl_gmp.c \
+	isl_val_gmp.c
+
+DEPRECATED_SRC = isl_ast_int.c
+MP_INCLUDE_H = include/isl/val_gmp.h
+endif
+
+AM_CPPFLAGS = -I. -I$(srcdir) -I$(srcdir)/include -Iinclude/ @MP_CPPFLAGS@
+AM_CFLAGS = @WARNING_FLAGS@
+
+libisl_la_SOURCES = \
+	$(MP_SRC) \
+	$(DEPRECATED_SRC) \
+	isl_aff.c \
+	isl_aff_private.h \
+	isl_affine_hull.c \
+	isl_arg.c \
+	isl_ast.c \
+	isl_ast_private.h \
+	isl_ast_build.c \
+	isl_ast_build_private.h \
+	isl_ast_build_expr.c \
+	isl_ast_build_expr.h \
+	isl_ast_codegen.c \
+	isl_ast_graft.c \
+	isl_ast_graft_private.h \
+	isl_band.c \
+	isl_band_private.h \
+	isl_basis_reduction.h \
+	basis_reduction_tab.c \
+	isl_bernstein.c \
+	isl_bernstein.h \
+	isl_blk.c \
+	isl_blk.h \
+	isl_bound.c \
+	isl_bound.h \
+	isl_coalesce.c \
+	isl_constraint.c \
+	isl_constraint_private.h \
+	isl_convex_hull.c \
+	isl_ctx.c \
+	isl_ctx_private.h \
+	isl_deprecated.c \
+	isl_dim_map.h \
+	isl_dim_map.c \
+	isl_equalities.c \
+	isl_equalities.h \
+	isl_factorization.c \
+	isl_factorization.h \
+	isl_farkas.c \
+	isl_ffs.c \
+	isl_flow.c \
+	isl_fold.c \
+	isl_hash.c \
+	isl_hash_private.h \
+	isl_id_to_ast_expr.c \
+	isl_id_to_id.c \
+	isl_id_to_pw_aff.c \
+	isl_ilp.c \
+	isl_ilp_private.h \
+	isl_input.c \
+	isl_int.h \
+	isl_local.h \
+	isl_local.c \
+	isl_local_space_private.h \
+	isl_local_space.c \
+	isl_lp.c \
+	isl_lp_private.h \
+	isl_map.c \
+	isl_map_list.c \
+	isl_map_simplify.c \
+	isl_map_subtract.c \
+	isl_map_private.h \
+	isl_map_to_basic_set.c \
+	isl_mat.c \
+	isl_mat_private.h \
+	isl_morph.c \
+	isl_morph.h \
+	isl_id.c \
+	isl_id_private.h \
+	isl_obj.c \
+	isl_options.c \
+	isl_options_private.h \
+	isl_output.c \
+	isl_output_private.h \
+	isl_point_private.h \
+	isl_point.c \
+	isl_polynomial_private.h \
+	isl_polynomial.c \
+	isl_printer_private.h \
+	isl_printer.c \
+	print.c \
+	isl_range.c \
+	isl_range.h \
+	isl_reordering.c \
+	isl_reordering.h \
+	isl_sample.h \
+	isl_sample.c \
+	isl_scan.c \
+	isl_scan.h \
+	isl_schedule.c \
+	isl_schedule_band.c \
+	isl_schedule_band.h \
+	isl_schedule_node.c \
+	isl_schedule_node_private.h \
+	isl_schedule_read.c \
+	isl_schedule_tree.c \
+	isl_schedule_tree.h \
+	isl_schedule_private.h \
+	isl_schedule_constraints.c \
+	isl_schedule_constraints.h \
+	isl_scheduler.c \
+	isl_set_list.c \
+	isl_sort.c \
+	isl_sort.h \
+	isl_space.c \
+	isl_space_private.h \
+	isl_stream.c \
+	isl_stream_private.h \
+	isl_seq.c \
+	isl_seq.h \
+	isl_tab.c \
+	isl_tab.h \
+	isl_tab_pip.c \
+	isl_tarjan.c \
+	isl_tarjan.h \
+	isl_transitive_closure.c \
+	isl_union_map.c \
+	isl_union_map_private.h \
+	isl_union_set_private.h \
+	isl_val.c \
+	isl_val_private.h \
+	isl_vec_private.h \
+	isl_vec.c \
+	isl_version.c \
+	isl_vertices_private.h \
+	isl_vertices.c \
+	isl_yaml.h
+libisl_la_LIBADD = @MP_LIBS@
+libisl_la_LDFLAGS = -version-info @versioninfo@ \
+	@MP_LDFLAGS@
+
+isl_test_LDFLAGS = @MP_LDFLAGS@
+isl_test_LDADD = libisl.la @MP_LIBS@
+
+isl_test_int_LDFLAGS = @MP_LDFLAGS@
+isl_test_int_LDADD = libisl.la @MP_LIBS@
+
+if IMATH_FOR_MP
+isl_test_imath_LDFLAGS = @MP_LDFLAGS@
+isl_test_imath_LDADD = libisl.la @MP_LIBS@
+endif
+
+isl_polyhedron_sample_LDADD = libisl.la
+isl_polyhedron_sample_SOURCES = \
+	polyhedron_sample.c
+
+isl_pip_LDFLAGS = @MP_LDFLAGS@
+isl_pip_LDADD = libisl.la @MP_LIBS@
+isl_pip_SOURCES = \
+	pip.c
+
+isl_schedule_LDFLAGS = @MP_LDFLAGS@
+isl_schedule_LDADD = libisl.la @MP_LIBS@
+isl_schedule_SOURCES = \
+	schedule.c
+
+isl_schedule_cmp_LDFLAGS = @MP_LDFLAGS@
+isl_schedule_cmp_LDADD = libisl.la @MP_LIBS@
+isl_schedule_cmp_SOURCES = \
+	schedule_cmp.c
+
+isl_flow_LDFLAGS = @MP_LDFLAGS@
+isl_flow_LDADD = libisl.la @MP_LIBS@
+isl_flow_SOURCES = \
+	flow.c
+
+isl_flow_cmp_LDFLAGS = @MP_LDFLAGS@
+isl_flow_cmp_LDADD = libisl.la @MP_LIBS@
+isl_flow_cmp_SOURCES = \
+	flow_cmp.c
+
+isl_codegen_LDFLAGS = @MP_LDFLAGS@
+isl_codegen_LDADD = libisl.la @MP_LIBS@
+isl_codegen_SOURCES = \
+	codegen.c
+
+isl_bound_LDFLAGS = @MP_LDFLAGS@
+isl_bound_LDADD = libisl.la @MP_LIBS@
+isl_bound_SOURCES = \
+	bound.c
+
+isl_polyhedron_minimize_LDFLAGS = @MP_LDFLAGS@
+isl_polyhedron_minimize_LDADD = libisl.la @MP_LIBS@
+isl_polyhedron_minimize_SOURCES = \
+	polyhedron_minimize.c
+
+isl_polytope_scan_LDADD = libisl.la
+isl_polytope_scan_SOURCES = \
+	polytope_scan.c
+
+isl_polyhedron_detect_equalities_LDADD = libisl.la
+isl_polyhedron_detect_equalities_SOURCES = \
+	polyhedron_detect_equalities.c
+
+isl_cat_LDADD = libisl.la
+isl_cat_SOURCES = \
+	cat.c
+
+isl_closure_LDADD = libisl.la
+isl_closure_SOURCES = \
+	closure.c
+
+nodist_pkginclude_HEADERS = \
+	include/isl/stdint.h
+pkginclude_HEADERS = \
+	$(MP_INCLUDE_H) \
+	include/isl/aff.h \
+	include/isl/aff_type.h \
+	include/isl/arg.h \
+	include/isl/ast.h \
+	include/isl/ast_type.h \
+	include/isl/ast_build.h \
+	include/isl/band.h \
+	include/isl/constraint.h \
+	include/isl/ctx.h \
+	include/isl/flow.h \
+	include/isl/id.h \
+	include/isl/id_to_ast_expr.h \
+	include/isl/id_to_id.h \
+	include/isl/id_to_pw_aff.h \
+	include/isl/ilp.h \
+	include/isl/hash.h \
+	include/isl/hmap.h \
+	include/isl/hmap_templ.c \
+	include/isl/list.h \
+	include/isl/local_space.h \
+	include/isl/lp.h \
+	include/isl/mat.h \
+	include/isl/map.h \
+	include/isl/map_to_basic_set.h \
+	include/isl/map_type.h \
+	include/isl/maybe.h \
+	include/isl/maybe_ast_expr.h \
+	include/isl/maybe_basic_set.h \
+	include/isl/maybe_id.h \
+	include/isl/maybe_pw_aff.h \
+	include/isl/maybe_templ.h \
+	include/isl/multi.h \
+	include/isl/obj.h \
+	include/isl/options.h \
+	include/isl/point.h \
+	include/isl/polynomial.h \
+	include/isl/polynomial_type.h \
+	include/isl/printer.h \
+	include/isl/printer_type.h \
+	include/isl/schedule.h \
+	include/isl/schedule_node.h \
+	include/isl/schedule_type.h \
+	include/isl/set.h \
+	include/isl/set_type.h \
+	include/isl/space.h \
+	include/isl/stream.h \
+	include/isl/union_map.h \
+	include/isl/union_map_type.h \
+	include/isl/union_set.h \
+	include/isl/union_set_type.h \
+	include/isl/val.h \
+	include/isl/vec.h \
+	include/isl/version.h \
+	include/isl/vertices.h
+deprecateddir = $(pkgincludedir)/deprecated
+deprecated_HEADERS = \
+	include/isl/deprecated/int.h \
+	include/isl/deprecated/aff_int.h \
+	include/isl/deprecated/ast_int.h \
+	include/isl/deprecated/constraint_int.h \
+	include/isl/deprecated/ilp_int.h \
+	include/isl/deprecated/map_int.h \
+	include/isl/deprecated/mat_int.h \
+	include/isl/deprecated/point_int.h \
+	include/isl/deprecated/polynomial_int.h \
+	include/isl/deprecated/set_int.h \
+	include/isl/deprecated/union_map_int.h \
+	include/isl/deprecated/val_int.h \
+	include/isl/deprecated/vec_int.h
+
+BUILT_SOURCES = gitversion.h
+
+CLEANFILES = \
+	gitversion.h
+
+DISTCLEANFILES = \
+	isl-uninstalled.sh \
+	isl-uninstalled.pc \
+	isl.pc \
+	isl.pc.in \
+	include/isl/stdint.h
+
+EXTRA_DIST = \
+	LICENSE \
+	isl_config_post.h \
+	basis_reduction_templ.c \
+	bset_to_bmap.c \
+	bset_from_bmap.c \
+	extract_key.c \
+	isl_list_templ.c \
+	isl_list_templ.h \
+	isl_map_lexopt_templ.c \
+	isl_maybe_map.h \
+	isl_multi_macro.h \
+	isl_multi_templ.c \
+	isl_multi_templ.h \
+	isl_multi_apply_templ.c \
+	isl_multi_apply_set.c \
+	isl_multi_apply_union_set.c \
+	isl_multi_cmp.c \
+	isl_multi_coalesce.c \
+	isl_multi_floor.c \
+	isl_multi_gist.c \
+	isl_multi_hash.c \
+	isl_multi_intersect.c \
+	print_templ.c \
+	print_templ_yaml.c \
+	isl_power_templ.c \
+	isl_pw_macro.h \
+	isl_pw_templ.c \
+	isl_pw_hash.c \
+	isl_pw_union_opt.c \
+	read_in_string_templ.c \
+	set_to_map.c \
+	set_from_map.c \
+	isl_tab_lexopt_templ.c \
+	isl_union_macro.h \
+	isl_union_templ.c \
+	isl_union_single.c \
+	isl_union_multi.c \
+	isl_union_eval.c \
+	isl_union_neg.c \
+	isl.py \
+	doc/CodingStyle \
+	doc/SubmittingPatches \
+	doc/implementation.tex \
+	doc/isl.bib \
+	doc/mypod2latex \
+	doc/manual.tex \
+	doc/reading.tex \
+	doc/user.pod \
+	imath/gmp_compat.c \
+	imath/gmp_compat.h \
+	imath/imath.c \
+	imath/imath.h \
+	imath/imrat.c \
+	imath/imrat.h \
+	interface/all.h \
+	interface/isl.h.top \
+	interface/isl.py.top \
+	test_inputs
+
+dist-hook:
+	echo @GIT_HEAD_VERSION@ > $(distdir)/GIT_HEAD_ID
+	(cd doc; make manual.pdf)
+	cp doc/manual.pdf $(distdir)/doc/
+
+pkgconfigdir=$(pkgconfig_libdir)
+pkgconfig_DATA = $(pkgconfig_libfile)
+
+gitversion.h: @GIT_HEAD@
+	$(AM_V_GEN)echo '#define GIT_HEAD_ID "'@GIT_HEAD_VERSION@'"' > $@
+
+install-data-local: $(srcdir)/isl.py
+	@libisl=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
+		 $(builddir)/libisl.la`; \
+	case $$libisl in \
+	'') echo Cannot find isl library name. GDB bindings not installed.;; \
+	*) echo $(INSTALL_DATA) $(srcdir)/isl.py \
+		$(DESTDIR)$(libdir)/$$libisl-gdb.py; \
+	test -z "$(libdir)" || $(MKDIR_P) "$(DESTDIR)$(libdir)"; \
+	$(INSTALL_DATA) $(srcdir)/isl.py $(DESTDIR)$(libdir)/$$libisl-gdb.py; esac
+
+uninstall-local:
+	@libisl=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
+		 $(builddir)/libisl.la`; \
+	if test -n "$${libisl}"; then \
+		rm -f $(DESTDIR)$(libdir)/$$libisl-gdb.py; \
+	fi

external/llvm-project/polly/lib/External/isl/README

@@ -0,0 +1,53 @@
+isl is a thread-safe C library for manipulating sets and relations
+of integer points bounded by affine constraints.  The descriptions of
+the sets and relations may involve both parameters and existentially
+quantified variables.  All computations are performed in exact integer
+arithmetic using GMP.
+
+isl is released under the MIT license, but depends on the LGPL GMP
+library.
+
+Minimal compilation instructions:
+
+	./configure
+	make
+	make install
+
+If you are taking the source from the git repository, then you first
+need to do
+
+	git clone git://repo.or.cz/isl.git
+	./autogen.sh
+
+For more information, see doc/user.pod or the generated documentation.
+
+New releases are announced on http://freecode.com/projects/isl
+
+If you use isl, you can let me know by stacking
+https://www.ohloh.net/p/isl on ohloh.
+
+For bug reports, feature requests and questions,
+contact http://groups.google.com/group/isl-development
+
+Whenever you report a bug, please mention the exact version of isl
+that you are using (output of "./isl_cat --version").  If you are unable
+to compile isl, then report the git version (output of "git describe")
+or the version included in the name of the tarball.
+
+If you use isl for your research, you are invited do cite
+the following paper and/or the paper(s) describing the specific
+operations you use.
+
+@incollection{Verdoolaege2010isl,
+   author = {Verdoolaege, Sven},
+   title = {isl: An Integer Set Library for the Polyhedral Model},
+   booktitle = {Mathematical Software - ICMS 2010},
+   series = {Lecture Notes in Computer Science},
+   editor = {Fukuda, Komei and Hoeven, Joris and Joswig, Michael and
+		Takayama, Nobuki},
+   publisher = {Springer},
+   isbn = {978-3-642-15581-9},
+   pages = {299-302},
+   volume = {6327},
+   year = {2010}
+}

external/llvm-project/polly/lib/External/isl/basis_reduction_tab.c

@@ -0,0 +1,293 @@
+/*
+ * Copyright 2008-2009 Katholieke Universiteit Leuven
+ *
+ * Use of this software is governed by the MIT license
+ *
+ * Written by Sven Verdoolaege, K.U.Leuven, Departement
+ * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
+ */
+
+#include <assert.h>
+#include <isl_map_private.h>
+#include <isl_seq.h>
+#include "isl_tab.h"
+#include <isl_int.h>
+#include <isl_config.h>
+
+struct tab_lp {
+	struct isl_ctx  *ctx;
+	struct isl_vec  *row;
+	struct isl_tab  *tab;
+	struct isl_tab_undo	**stack;
+	isl_int		*obj;
+	isl_int		 opt;
+	isl_int		 opt_denom;
+	isl_int		 tmp;
+	isl_int		 tmp2;
+	int	         neq;
+	unsigned	 dim;
+	/* number of constraints in initial product tableau */
+	int		 con_offset;
+	/* objective function has fixed or no integer value */
+	int		 is_fixed;
+};
+
+#ifdef USE_GMP_FOR_MP
+#define GBR_type		    	    mpq_t
+#define GBR_init(v)		    	    mpq_init(v)
+#define GBR_clear(v)		    	    mpq_clear(v)
+#define GBR_set(a,b)			    mpq_set(a,b)
+#define GBR_set_ui(a,b)			    mpq_set_ui(a,b,1)
+#define GBR_mul(a,b,c)			    mpq_mul(a,b,c)
+#define GBR_lt(a,b)			    (mpq_cmp(a,b) < 0)
+#define GBR_is_zero(a)			    (mpq_sgn(a) == 0)
+#define GBR_numref(a)			    mpq_numref(a)
+#define GBR_denref(a)			    mpq_denref(a)
+#define GBR_floor(a,b)			    mpz_fdiv_q(a,GBR_numref(b),GBR_denref(b))
+#define GBR_ceil(a,b)			    mpz_cdiv_q(a,GBR_numref(b),GBR_denref(b))
+#define GBR_set_num_neg(a, b)		    mpz_neg(GBR_numref(*a), b);
+#define GBR_set_den(a, b)		    mpz_set(GBR_denref(*a), b);
+#endif /* USE_GMP_FOR_MP */
+
+#ifdef USE_IMATH_FOR_MP
+#include <imrat.h>
+
+#define GBR_type		    	    mp_rat
+#define GBR_init(v)		    	    v = mp_rat_alloc()
+#define GBR_clear(v)		    	    mp_rat_free(v)
+#define GBR_set(a,b)			    mp_rat_copy(b,a)
+#define GBR_set_ui(a,b)			    mp_rat_set_uvalue(a,b,1)
+#define GBR_mul(a,b,c)			    mp_rat_mul(b,c,a)
+#define GBR_lt(a,b)			    (mp_rat_compare(a,b) < 0)
+#define GBR_is_zero(a)			    (mp_rat_compare_zero(a) == 0)
+#ifdef USE_SMALL_INT_OPT
+#define GBR_numref(a)	isl_sioimath_encode_big(mp_rat_numer_ref(a))
+#define GBR_denref(a)	isl_sioimath_encode_big(mp_rat_denom_ref(a))
+#define GBR_floor(a, b)	isl_sioimath_fdiv_q((a), GBR_numref(b), GBR_denref(b))
+#define GBR_ceil(a, b)	isl_sioimath_cdiv_q((a), GBR_numref(b), GBR_denref(b))
+#define GBR_set_num_neg(a, b)                              \
+	do {                                               \
+		isl_sioimath_scratchspace_t scratch;       \
+		impz_neg(mp_rat_numer_ref(*a),             \
+		    isl_sioimath_bigarg_src(*b, &scratch));\
+	} while (0)
+#define GBR_set_den(a, b)                                  \
+	do {                                               \
+		isl_sioimath_scratchspace_t scratch;       \
+		impz_set(mp_rat_denom_ref(*a),             \
+		    isl_sioimath_bigarg_src(*b, &scratch));\
+	} while (0)
+#else /* USE_SMALL_INT_OPT */
+#define GBR_numref(a)		mp_rat_numer_ref(a)
+#define GBR_denref(a)		mp_rat_denom_ref(a)
+#define GBR_floor(a,b)		impz_fdiv_q(a,GBR_numref(b),GBR_denref(b))
+#define GBR_ceil(a,b)		impz_cdiv_q(a,GBR_numref(b),GBR_denref(b))
+#define GBR_set_num_neg(a, b)	impz_neg(GBR_numref(*a), b)
+#define GBR_set_den(a, b)	impz_set(GBR_denref(*a), b)
+#endif /* USE_SMALL_INT_OPT */
+#endif /* USE_IMATH_FOR_MP */
+
+static struct tab_lp *init_lp(struct isl_tab *tab);
+static void set_lp_obj(struct tab_lp *lp, isl_int *row, int dim);
+static int solve_lp(struct tab_lp *lp);
+static void get_obj_val(struct tab_lp* lp, GBR_type *F);
+static void delete_lp(struct tab_lp *lp);
+static int add_lp_row(struct tab_lp *lp, isl_int *row, int dim);
+static void get_alpha(struct tab_lp* lp, int row, GBR_type *alpha);
+static int del_lp_row(struct tab_lp *lp) WARN_UNUSED;
+static int cut_lp_to_hyperplane(struct tab_lp *lp, isl_int *row);
+
+#define GBR_LP			    	    struct tab_lp
+#define GBR_lp_init(P)		    	    init_lp(P)
+#define GBR_lp_set_obj(lp, obj, dim)	    set_lp_obj(lp, obj, dim)
+#define GBR_lp_solve(lp)		    solve_lp(lp)
+#define GBR_lp_get_obj_val(lp, F)	    get_obj_val(lp, F)
+#define GBR_lp_delete(lp)		    delete_lp(lp)
+#define GBR_lp_next_row(lp)		    lp->neq
+#define GBR_lp_add_row(lp, row, dim)	    add_lp_row(lp, row, dim)
+#define GBR_lp_get_alpha(lp, row, alpha)    get_alpha(lp, row, alpha)
+#define GBR_lp_del_row(lp)		    del_lp_row(lp)
+#define GBR_lp_is_fixed(lp)		    (lp)->is_fixed
+#define GBR_lp_cut(lp, obj)	    	    cut_lp_to_hyperplane(lp, obj)
+#include "basis_reduction_templ.c"
+
+/* Set up a tableau for the Cartesian product of bset with itself.
+ * This could be optimized by first setting up a tableau for bset
+ * and then performing the Cartesian product on the tableau.
+ */
+static struct isl_tab *gbr_tab(struct isl_tab *tab, struct isl_vec *row)
+{
+	unsigned dim;
+	struct isl_tab *prod;
+
+	if (!tab || !row)
+		return NULL;
+
+	dim = tab->n_var;
+	prod = isl_tab_product(tab, tab);
+	if (isl_tab_extend_cons(prod, 3 * dim + 1) < 0) {
+		isl_tab_free(prod);
+		return NULL;
+	}
+	return prod;
+}
+
+static struct tab_lp *init_lp(struct isl_tab *tab)
+{
+	struct tab_lp *lp = NULL;
+
+	if (!tab)
+		return NULL;
+
+	lp = isl_calloc_type(tab->mat->ctx, struct tab_lp);
+	if (!lp)
+		return NULL;
+
+	isl_int_init(lp->opt);
+	isl_int_init(lp->opt_denom);
+	isl_int_init(lp->tmp);
+	isl_int_init(lp->tmp2);
+
+	lp->dim = tab->n_var;
+
+	lp->ctx = tab->mat->ctx;
+	isl_ctx_ref(lp->ctx);
+
+	lp->stack = isl_alloc_array(lp->ctx, struct isl_tab_undo *, lp->dim);
+
+	lp->row = isl_vec_alloc(lp->ctx, 1 + 2 * lp->dim);
+	if (!lp->row)
+		goto error;
+	lp->tab = gbr_tab(tab, lp->row);
+	if (!lp->tab)
+		goto error;
+	lp->con_offset = lp->tab->n_con;
+	lp->obj = NULL;
+	lp->neq = 0;
+
+	return lp;
+error:
+	delete_lp(lp);
+	return NULL;
+}
+
+static void set_lp_obj(struct tab_lp *lp, isl_int *row, int dim)
+{
+	lp->obj = row;
+}
+
+static int solve_lp(struct tab_lp *lp)
+{
+	enum isl_lp_result res;
+	unsigned flags = 0;
+
+	lp->is_fixed = 0;
+
+	isl_int_set_si(lp->row->el[0], 0);
+	isl_seq_cpy(lp->row->el + 1, lp->obj, lp->dim);
+	isl_seq_neg(lp->row->el + 1 + lp->dim, lp->obj, lp->dim);
+	if (lp->neq)
+		flags = ISL_TAB_SAVE_DUAL;
+	res = isl_tab_min(lp->tab, lp->row->el, lp->ctx->one,
+			  &lp->opt, &lp->opt_denom, flags);
+	isl_int_mul_ui(lp->opt_denom, lp->opt_denom, 2);
+	if (isl_int_abs_lt(lp->opt, lp->opt_denom)) {
+		struct isl_vec *sample = isl_tab_get_sample_value(lp->tab);
+		if (!sample)
+			return -1;
+		isl_seq_inner_product(lp->obj, sample->el + 1, lp->dim, &lp->tmp);
+		isl_seq_inner_product(lp->obj, sample->el + 1 + lp->dim, lp->dim, &lp->tmp2);
+		isl_int_cdiv_q(lp->tmp, lp->tmp, sample->el[0]);
+		isl_int_fdiv_q(lp->tmp2, lp->tmp2, sample->el[0]);
+		if (isl_int_ge(lp->tmp, lp->tmp2))
+			lp->is_fixed = 1;
+		isl_vec_free(sample);
+	}
+	isl_int_divexact_ui(lp->opt_denom, lp->opt_denom, 2);
+	if (res < 0)
+		return -1;
+	if (res != isl_lp_ok)
+		isl_die(lp->ctx, isl_error_internal,
+			"unexpected missing (bounded) solution", return -1);
+	return 0;
+}
+
+/* The current objective function has a fixed (or no) integer value.
+ * Cut the tableau to the hyperplane that fixes this value in
+ * both halves of the tableau.
+ * Return 1 if the resulting tableau is empty.
+ */
+static int cut_lp_to_hyperplane(struct tab_lp *lp, isl_int *row)
+{
+	enum isl_lp_result res;
+
+	isl_int_set_si(lp->row->el[0], 0);
+	isl_seq_cpy(lp->row->el + 1, row, lp->dim);
+	isl_seq_clr(lp->row->el + 1 + lp->dim, lp->dim);
+	res = isl_tab_min(lp->tab, lp->row->el, lp->ctx->one,
+			  &lp->tmp, NULL, 0);
+	if (res != isl_lp_ok)
+		return -1;
+
+	isl_int_neg(lp->row->el[0], lp->tmp);
+	if (isl_tab_add_eq(lp->tab, lp->row->el) < 0)
+		return -1;
+
+	isl_seq_cpy(lp->row->el + 1 + lp->dim, row, lp->dim);
+	isl_seq_clr(lp->row->el + 1, lp->dim);
+	if (isl_tab_add_eq(lp->tab, lp->row->el) < 0)
+		return -1;
+
+	lp->con_offset += 2;
+
+	return lp->tab->empty;
+}
+
+static void get_obj_val(struct tab_lp* lp, GBR_type *F)
+{
+	GBR_set_num_neg(F, lp->opt);
+	GBR_set_den(F, lp->opt_denom);
+}
+
+static void delete_lp(struct tab_lp *lp)
+{
+	if (!lp)
+		return;
+
+	isl_int_clear(lp->opt);
+	isl_int_clear(lp->opt_denom);
+	isl_int_clear(lp->tmp);
+	isl_int_clear(lp->tmp2);
+	isl_vec_free(lp->row);
+	free(lp->stack);
+	isl_tab_free(lp->tab);
+	isl_ctx_deref(lp->ctx);
+	free(lp);
+}
+
+static int add_lp_row(struct tab_lp *lp, isl_int *row, int dim)
+{
+	lp->stack[lp->neq] = isl_tab_snap(lp->tab);
+
+	isl_int_set_si(lp->row->el[0], 0);
+	isl_seq_cpy(lp->row->el + 1, row, lp->dim);
+	isl_seq_neg(lp->row->el + 1 + lp->dim, row, lp->dim);
+
+	if (isl_tab_add_valid_eq(lp->tab, lp->row->el) < 0)
+		return -1;
+
+	return lp->neq++;
+}
+
+static void get_alpha(struct tab_lp* lp, int row, GBR_type *alpha)
+{
+	row += lp->con_offset;
+	GBR_set_num_neg(alpha, lp->tab->dual->el[1 + row]);
+	GBR_set_den(alpha, lp->tab->dual->el[0]);
+}
+
+static int del_lp_row(struct tab_lp *lp)
+{
+	lp->neq--;
+	return isl_tab_rollback(lp->tab, lp->stack[lp->neq]);
+}

external/llvm-project/polly/lib/External/isl/basis_reduction_templ.c

@@ -0,0 +1,357 @@
+/*
+ * Copyright 2006-2007 Universiteit Leiden
+ * Copyright 2008-2009 Katholieke Universiteit Leuven
+ *
+ * Use of this software is governed by the MIT license
+ *
+ * Written by Sven Verdoolaege, Leiden Institute of Advanced Computer Science,
+ * Universiteit Leiden, Niels Bohrweg 1, 2333 CA Leiden, The Netherlands
+ * and K.U.Leuven, Departement Computerwetenschappen, Celestijnenlaan 200A,
+ * B-3001 Leuven, Belgium
+ */
+
+#include <stdlib.h>
+#include <isl_ctx_private.h>
+#include <isl_map_private.h>
+#include <isl_vec_private.h>
+#include <isl_options_private.h>
+#include "isl_basis_reduction.h"
+
+static void save_alpha(GBR_LP *lp, int first, int n, GBR_type *alpha)
+{
+	int i;
+
+	for (i = 0; i < n; ++i)
+		GBR_lp_get_alpha(lp, first + i, &alpha[i]);
+}
+
+/* Compute a reduced basis for the set represented by the tableau "tab".
+ * tab->basis, which must be initialized by the calling function to an affine
+ * unimodular basis, is updated to reflect the reduced basis.
+ * The first tab->n_zero rows of the basis (ignoring the constant row)
+ * are assumed to correspond to equalities and are left untouched.
+ * tab->n_zero is updated to reflect any additional equalities that
+ * have been detected in the first rows of the new basis.
+ * The final tab->n_unbounded rows of the basis are assumed to correspond
+ * to unbounded directions and are also left untouched.
+ * In particular this means that the remaining rows are assumed to
+ * correspond to bounded directions.
+ *
+ * This function implements the algorithm described in
+ * "An Implementation of the Generalized Basis Reduction Algorithm
+ *  for Integer Programming" of Cook el al. to compute a reduced basis.
+ * We use \epsilon = 1/4.
+ *
+ * If ctx->opt->gbr_only_first is set, the user is only interested
+ * in the first direction.  In this case we stop the basis reduction when
+ * the width in the first direction becomes smaller than 2.
+ */
+struct isl_tab *isl_tab_compute_reduced_basis(struct isl_tab *tab)
+{
+	unsigned dim;
+	struct isl_ctx *ctx;
+	struct isl_mat *B;
+	int i;
+	GBR_LP *lp = NULL;
+	GBR_type F_old, alpha, F_new;
+	int row;
+	isl_int tmp;
+	struct isl_vec *b_tmp;
+	GBR_type *F = NULL;
+	GBR_type *alpha_buffer[2] = { NULL, NULL };
+	GBR_type *alpha_saved;
+	GBR_type F_saved;
+	int use_saved = 0;
+	isl_int mu[2];
+	GBR_type mu_F[2];
+	GBR_type two;
+	GBR_type one;
+	int empty = 0;
+	int fixed = 0;
+	int fixed_saved = 0;
+	int mu_fixed[2];
+	int n_bounded;
+	int gbr_only_first;
+
+	if (!tab)
+		return NULL;
+
+	if (tab->empty)
+		return tab;
+
+	ctx = tab->mat->ctx;
+	gbr_only_first = ctx->opt->gbr_only_first;
+	dim = tab->n_var;
+	B = tab->basis;
+	if (!B)
+		return tab;
+
+	n_bounded = dim - tab->n_unbounded;
+	if (n_bounded <= tab->n_zero + 1)
+		return tab;
+
+	isl_int_init(tmp);
+	isl_int_init(mu[0]);
+	isl_int_init(mu[1]);
+
+	GBR_init(alpha);
+	GBR_init(F_old);
+	GBR_init(F_new);
+	GBR_init(F_saved);
+	GBR_init(mu_F[0]);
+	GBR_init(mu_F[1]);
+	GBR_init(two);
+	GBR_init(one);
+
+	b_tmp = isl_vec_alloc(ctx, dim);
+	if (!b_tmp)
+		goto error;
+
+	F = isl_alloc_array(ctx, GBR_type, n_bounded);
+	alpha_buffer[0] = isl_alloc_array(ctx, GBR_type, n_bounded);
+	alpha_buffer[1] = isl_alloc_array(ctx, GBR_type, n_bounded);
+	alpha_saved = alpha_buffer[0];
+
+	if (!F || !alpha_buffer[0] || !alpha_buffer[1])
+		goto error;
+
+	for (i = 0; i < n_bounded; ++i) {
+		GBR_init(F[i]);
+		GBR_init(alpha_buffer[0][i]);
+		GBR_init(alpha_buffer[1][i]);
+	}
+
+	GBR_set_ui(two, 2);
+	GBR_set_ui(one, 1);
+
+	lp = GBR_lp_init(tab);
+	if (!lp)
+		goto error;
+
+	i = tab->n_zero;
+
+	GBR_lp_set_obj(lp, B->row[1+i]+1, dim);
+	ctx->stats->gbr_solved_lps++;
+	if (GBR_lp_solve(lp) < 0)
+		goto error;
+	GBR_lp_get_obj_val(lp, &F[i]);
+
+	if (GBR_lt(F[i], one)) {
+		if (!GBR_is_zero(F[i])) {
+			empty = GBR_lp_cut(lp, B->row[1+i]+1);
+			if (empty)
+				goto done;
+			GBR_set_ui(F[i], 0);
+		}
+		tab->n_zero++;
+	}
+
+	do {
+		if (i+1 == tab->n_zero) {
+			GBR_lp_set_obj(lp, B->row[1+i+1]+1, dim);
+			ctx->stats->gbr_solved_lps++;
+			if (GBR_lp_solve(lp) < 0)
+				goto error;
+			GBR_lp_get_obj_val(lp, &F_new);
+			fixed = GBR_lp_is_fixed(lp);
+			GBR_set_ui(alpha, 0);
+		} else
+		if (use_saved) {
+			row = GBR_lp_next_row(lp);
+			GBR_set(F_new, F_saved);
+			fixed = fixed_saved;
+			GBR_set(alpha, alpha_saved[i]);
+		} else {
+			row = GBR_lp_add_row(lp, B->row[1+i]+1, dim);
+			GBR_lp_set_obj(lp, B->row[1+i+1]+1, dim);
+			ctx->stats->gbr_solved_lps++;
+			if (GBR_lp_solve(lp) < 0)
+				goto error;
+			GBR_lp_get_obj_val(lp, &F_new);
+			fixed = GBR_lp_is_fixed(lp);
+
+			GBR_lp_get_alpha(lp, row, &alpha);
+
+			if (i > 0)
+				save_alpha(lp, row-i, i, alpha_saved);
+
+			if (GBR_lp_del_row(lp) < 0)
+				goto error;
+		}
+		GBR_set(F[i+1], F_new);
+
+		GBR_floor(mu[0], alpha);
+		GBR_ceil(mu[1], alpha);
+
+		if (isl_int_eq(mu[0], mu[1]))
+			isl_int_set(tmp, mu[0]);
+		else {
+			int j;
+
+			for (j = 0; j <= 1; ++j) {
+				isl_int_set(tmp, mu[j]);
+				isl_seq_combine(b_tmp->el,
+						ctx->one, B->row[1+i+1]+1,
+						tmp, B->row[1+i]+1, dim);
+				GBR_lp_set_obj(lp, b_tmp->el, dim);
+				ctx->stats->gbr_solved_lps++;
+				if (GBR_lp_solve(lp) < 0)
+					goto error;
+				GBR_lp_get_obj_val(lp, &mu_F[j]);
+				mu_fixed[j] = GBR_lp_is_fixed(lp);
+				if (i > 0)
+					save_alpha(lp, row-i, i, alpha_buffer[j]);
+			}
+
+			if (GBR_lt(mu_F[0], mu_F[1]))
+				j = 0;
+			else
+				j = 1;
+
+			isl_int_set(tmp, mu[j]);
+			GBR_set(F_new, mu_F[j]);
+			fixed = mu_fixed[j];
+			alpha_saved = alpha_buffer[j];
+		}
+		isl_seq_combine(B->row[1+i+1]+1, ctx->one, B->row[1+i+1]+1,
+				tmp, B->row[1+i]+1, dim);
+
+		if (i+1 == tab->n_zero && fixed) {
+			if (!GBR_is_zero(F[i+1])) {
+				empty = GBR_lp_cut(lp, B->row[1+i+1]+1);
+				if (empty)
+					goto done;
+				GBR_set_ui(F[i+1], 0);
+			}
+			tab->n_zero++;
+		}
+
+		GBR_set(F_old, F[i]);
+
+		use_saved = 0;
+		/* mu_F[0] = 4 * F_new; mu_F[1] = 3 * F_old */
+		GBR_set_ui(mu_F[0], 4);
+		GBR_mul(mu_F[0], mu_F[0], F_new);
+		GBR_set_ui(mu_F[1], 3);
+		GBR_mul(mu_F[1], mu_F[1], F_old);
+		if (GBR_lt(mu_F[0], mu_F[1])) {
+			B = isl_mat_swap_rows(B, 1 + i, 1 + i + 1);
+			if (i > tab->n_zero) {
+				use_saved = 1;
+				GBR_set(F_saved, F_new);
+				fixed_saved = fixed;
+				if (GBR_lp_del_row(lp) < 0)
+					goto error;
+				--i;
+			} else {
+				GBR_set(F[tab->n_zero], F_new);
+				if (gbr_only_first && GBR_lt(F[tab->n_zero], two))
+					break;
+
+				if (fixed) {
+					if (!GBR_is_zero(F[tab->n_zero])) {
+						empty = GBR_lp_cut(lp, B->row[1+tab->n_zero]+1);
+						if (empty)
+							goto done;
+						GBR_set_ui(F[tab->n_zero], 0);
+					}
+					tab->n_zero++;
+				}
+			}
+		} else {
+			GBR_lp_add_row(lp, B->row[1+i]+1, dim);
+			++i;
+		}
+	} while (i < n_bounded - 1);
+
+	if (0) {
+done:
+		if (empty < 0) {
+error:
+			isl_mat_free(B);
+			B = NULL;
+		}
+	}
+
+	GBR_lp_delete(lp);
+
+	if (alpha_buffer[1])
+		for (i = 0; i < n_bounded; ++i) {
+			GBR_clear(F[i]);
+			GBR_clear(alpha_buffer[0][i]);
+			GBR_clear(alpha_buffer[1][i]);
+		}
+	free(F);
+	free(alpha_buffer[0]);
+	free(alpha_buffer[1]);
+
+	isl_vec_free(b_tmp);
+
+	GBR_clear(alpha);
+	GBR_clear(F_old);
+	GBR_clear(F_new);
+	GBR_clear(F_saved);
+	GBR_clear(mu_F[0]);
+	GBR_clear(mu_F[1]);
+	GBR_clear(two);
+	GBR_clear(one);
+
+	isl_int_clear(tmp);
+	isl_int_clear(mu[0]);
+	isl_int_clear(mu[1]);
+
+	tab->basis = B;
+
+	return tab;
+}
+
+/* Compute an affine form of a reduced basis of the given basic
+ * non-parametric set, which is assumed to be bounded and not
+ * include any integer divisions.
+ * The first column and the first row correspond to the constant term.
+ *
+ * If the input contains any equalities, we first create an initial
+ * basis with the equalities first.  Otherwise, we start off with
+ * the identity matrix.
+ */
+__isl_give isl_mat *isl_basic_set_reduced_basis(__isl_keep isl_basic_set *bset)
+{
+	struct isl_mat *basis;
+	struct isl_tab *tab;
+
+	if (!bset)
+		return NULL;
+
+	if (isl_basic_set_dim(bset, isl_dim_div) != 0)
+		isl_die(bset->ctx, isl_error_invalid,
+			"no integer division allowed", return NULL);
+	if (isl_basic_set_dim(bset, isl_dim_param) != 0)
+		isl_die(bset->ctx, isl_error_invalid,
+			"no parameters allowed", return NULL);
+
+	tab = isl_tab_from_basic_set(bset, 0);
+	if (!tab)
+		return NULL;
+
+	if (bset->n_eq == 0)
+		tab->basis = isl_mat_identity(bset->ctx, 1 + tab->n_var);
+	else {
+		isl_mat *eq;
+		unsigned nvar = isl_basic_set_total_dim(bset);
+		eq = isl_mat_sub_alloc6(bset->ctx, bset->eq, 0, bset->n_eq,
+					1, nvar);
+		eq = isl_mat_left_hermite(eq, 0, NULL, &tab->basis);
+		tab->basis = isl_mat_lin_to_aff(tab->basis);
+		tab->n_zero = bset->n_eq;
+		isl_mat_free(eq);
+	}
+	tab = isl_tab_compute_reduced_basis(tab);
+	if (!tab)
+		return NULL;
+
+	basis = isl_mat_copy(tab->basis);
+
+	isl_tab_free(tab);
+
+	return basis;
+}

external/llvm-project/polly/lib/External/isl/bound.c

@@ -0,0 +1,289 @@
+#include <assert.h>
+#include <isl/stream.h>
+#include <isl_map_private.h>
+#include <isl_polynomial_private.h>
+#include <isl_scan.h>
+#include <isl/options.h>
+#include <isl/deprecated/point_int.h>
+#include <isl/deprecated/polynomial_int.h>
+
+struct bound_options {
+	struct isl_options	*isl;
+	unsigned		 verify;
+	int			 print_all;
+	int			 continue_on_error;
+};
+
+ISL_ARGS_START(struct bound_options, bound_options_args)
+ISL_ARG_CHILD(struct bound_options, isl, "isl", &isl_options_args,
+	"isl options")
+ISL_ARG_BOOL(struct bound_options, verify, 'T', "verify", 0, NULL)
+ISL_ARG_BOOL(struct bound_options, print_all, 'A', "print-all", 0, NULL)
+ISL_ARG_BOOL(struct bound_options, continue_on_error, '\0', "continue-on-error", 0, NULL)
+ISL_ARGS_END
+
+ISL_ARG_DEF(bound_options, struct bound_options, bound_options_args)
+
+static __isl_give isl_set *set_bounds(__isl_take isl_set *set)
+{
+	unsigned nparam;
+	int i, r;
+	isl_point *pt, *pt2;
+	isl_set *box;
+
+	nparam = isl_set_dim(set, isl_dim_param);
+	r = nparam >= 8 ? 5 : nparam >= 5 ? 15 : 50;
+
+	pt = isl_set_sample_point(isl_set_copy(set));
+	pt2 = isl_point_copy(pt);
+
+	for (i = 0; i < nparam; ++i) {
+		pt = isl_point_add_ui(pt, isl_dim_param, i, r);
+		pt2 = isl_point_sub_ui(pt2, isl_dim_param, i, r);
+	}
+
+	box = isl_set_box_from_points(pt, pt2);
+
+	return isl_set_intersect(set, box);
+}
+
+struct verify_point_bound {
+	struct bound_options *options;
+	int stride;
+	int n;
+	int exact;
+	int error;
+
+	isl_pw_qpolynomial_fold *pwf;
+	isl_pw_qpolynomial_fold *bound;
+};
+
+static isl_stat verify_point(__isl_take isl_point *pnt, void *user)
+{
+	int i;
+	unsigned nparam;
+	struct verify_point_bound *vpb = (struct verify_point_bound *) user;
+	isl_int t;
+	isl_ctx *ctx;
+	isl_pw_qpolynomial_fold *pwf;
+	isl_val *bound = NULL;
+	isl_val *opt = NULL;
+	isl_set *dom = NULL;
+	isl_printer *p;
+	const char *minmax;
+	isl_bool bounded;
+	int sign;
+	int ok;
+	FILE *out = vpb->options->print_all ? stdout : stderr;
+
+	vpb->n--;
+
+	if (1) {
+		minmax = "ub";
+		sign = 1;
+	} else {
+		minmax = "lb";
+		sign = -1;
+	}
+
+	ctx = isl_point_get_ctx(pnt);
+	p = isl_printer_to_file(ctx, out);
+
+	isl_int_init(t);
+
+	pwf = isl_pw_qpolynomial_fold_copy(vpb->pwf);
+
+	nparam = isl_pw_qpolynomial_fold_dim(pwf, isl_dim_param);
+	for (i = 0; i < nparam; ++i) {
+		isl_point_get_coordinate(pnt, isl_dim_param, i, &t);
+		pwf = isl_pw_qpolynomial_fold_fix_dim(pwf, isl_dim_param, i, t);
+	}
+
+	bound = isl_pw_qpolynomial_fold_eval(
+				    isl_pw_qpolynomial_fold_copy(vpb->bound),
+				    isl_point_copy(pnt));
+
+	dom = isl_pw_qpolynomial_fold_domain(isl_pw_qpolynomial_fold_copy(pwf));
+	bounded = isl_set_is_bounded(dom);
+
+	if (bounded < 0)
+		goto error;
+
+	if (!bounded)
+		opt = isl_pw_qpolynomial_fold_eval(
+				    isl_pw_qpolynomial_fold_copy(pwf),
+				    isl_set_sample_point(isl_set_copy(dom)));
+	else if (sign > 0)
+		opt = isl_pw_qpolynomial_fold_max(isl_pw_qpolynomial_fold_copy(pwf));
+	else
+		opt = isl_pw_qpolynomial_fold_min(isl_pw_qpolynomial_fold_copy(pwf));
+
+	if (vpb->exact && bounded)
+		ok = isl_val_eq(opt, bound);
+	else if (sign > 0)
+		ok = isl_val_le(opt, bound);
+	else
+		ok = isl_val_le(bound, opt);
+	if (ok < 0)
+		goto error;
+
+	if (vpb->options->print_all || !ok) {
+		p = isl_printer_print_str(p, minmax);
+		p = isl_printer_print_str(p, "(");
+		for (i = 0; i < nparam; ++i) {
+			if (i)
+				p = isl_printer_print_str(p, ", ");
+			isl_point_get_coordinate(pnt, isl_dim_param, i, &t);
+			p = isl_printer_print_isl_int(p, t);
+		}
+		p = isl_printer_print_str(p, ") = ");
+		p = isl_printer_print_val(p, bound);
+		p = isl_printer_print_str(p, ", ");
+		p = isl_printer_print_str(p, bounded ? "opt" : "sample");
+		p = isl_printer_print_str(p, " = ");
+		p = isl_printer_print_val(p, opt);
+		if (ok)
+			p = isl_printer_print_str(p, ". OK");
+		else
+			p = isl_printer_print_str(p, ". NOT OK");
+		p = isl_printer_end_line(p);
+	} else if ((vpb->n % vpb->stride) == 0) {
+		p = isl_printer_print_str(p, "o");
+		p = isl_printer_flush(p);
+	}
+
+	if (0) {
+error:
+		ok = 0;
+	}
+
+	isl_pw_qpolynomial_fold_free(pwf);
+	isl_val_free(bound);
+	isl_val_free(opt);
+	isl_point_free(pnt);
+	isl_set_free(dom);
+
+	isl_int_clear(t);
+
+	isl_printer_free(p);
+
+	if (!ok)
+		vpb->error = 1;
+
+	if (vpb->options->continue_on_error)
+		ok = 1;
+
+	return (vpb->n >= 1 && ok) ? isl_stat_ok : isl_stat_error;
+}
+
+static int check_solution(__isl_take isl_pw_qpolynomial_fold *pwf,
+	__isl_take isl_pw_qpolynomial_fold *bound, int exact,
+	struct bound_options *options)
+{
+	struct verify_point_bound vpb;
+	isl_int count, max;
+	isl_set *dom;
+	isl_set *context;
+	int i, r, n;
+
+	dom = isl_pw_qpolynomial_fold_domain(isl_pw_qpolynomial_fold_copy(pwf));
+	context = isl_set_params(isl_set_copy(dom));
+	context = isl_set_remove_divs(context);
+	context = set_bounds(context);
+
+	isl_int_init(count);
+	isl_int_init(max);
+
+	isl_int_set_si(max, 200);
+	r = isl_set_count_upto(context, max, &count);
+	assert(r >= 0);
+	n = isl_int_get_si(count);
+
+	isl_int_clear(max);
+	isl_int_clear(count);
+
+	vpb.options = options;
+	vpb.pwf = pwf;
+	vpb.bound = bound;
+	vpb.n = n;
+	vpb.stride = n > 70 ? 1 + (n + 1)/70 : 1;
+	vpb.error = 0;
+	vpb.exact = exact;
+
+	if (!options->print_all) {
+		for (i = 0; i < vpb.n; i += vpb.stride)
+			printf(".");
+		printf("\r");
+		fflush(stdout);
+	}
+
+	isl_set_foreach_point(context, verify_point, &vpb);
+
+	isl_set_free(context);
+	isl_set_free(dom);
+	isl_pw_qpolynomial_fold_free(pwf);
+	isl_pw_qpolynomial_fold_free(bound);
+
+	if (!options->print_all)
+		printf("\n");
+
+	if (vpb.error) {
+		fprintf(stderr, "Check failed !\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	isl_ctx *ctx;
+	isl_pw_qpolynomial_fold *copy;
+	isl_pw_qpolynomial_fold *pwf;
+	isl_stream *s;
+	struct isl_obj obj;
+	struct bound_options *options;
+	int exact;
+	int r = 0;
+
+	options = bound_options_new_with_defaults();
+	assert(options);
+	argc = bound_options_parse(options, argc, argv, ISL_ARG_ALL);
+
+	ctx = isl_ctx_alloc_with_options(&bound_options_args, options);
+
+	s = isl_stream_new_file(ctx, stdin);
+	obj = isl_stream_read_obj(s);
+	if (obj.type == isl_obj_pw_qpolynomial)
+		pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
+								  obj.v);
+	else if (obj.type == isl_obj_pw_qpolynomial_fold)
+		pwf = obj.v;
+	else {
+		obj.type->free(obj.v);
+		isl_die(ctx, isl_error_invalid, "invalid input", goto error);
+	}
+
+	if (options->verify)
+		copy = isl_pw_qpolynomial_fold_copy(pwf);
+
+	pwf = isl_pw_qpolynomial_fold_bound(pwf, &exact);
+	pwf = isl_pw_qpolynomial_fold_coalesce(pwf);
+
+	if (options->verify) {
+		r = check_solution(copy, pwf, exact, options);
+	} else {
+		if (!exact)
+			printf("# NOT exact\n");
+		isl_pw_qpolynomial_fold_print(pwf, stdout, 0);
+		fprintf(stdout, "\n");
+		isl_pw_qpolynomial_fold_free(pwf);
+	}
+
+error:
+	isl_stream_free(s);
+
+	isl_ctx_free(ctx);
+
+	return r;
+}

external/llvm-project/polly/lib/External/isl/bound_test.sh.in

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+EXEEXT=@EXEEXT@
+srcdir=@srcdir@
+
+BOUND_TESTS="\
+	basicLinear2.pwqp \
+	basicLinear.pwqp \
+	basicTestParameterPosNeg.pwqp \
+	basicTest.pwqp \
+	devos.pwqp \
+	equality1.pwqp \
+	equality2.pwqp \
+	equality3.pwqp \
+	equality4.pwqp \
+	equality5.pwqp \
+	faddeev.pwqp \
+	linearExample.pwqp \
+	neg.pwqp \
+	philippe3vars3pars.pwqp \
+	philippe3vars.pwqp \
+	philippeNeg.pwqp \
+	philippePolynomialCoeff1P.pwqp \
+	philippePolynomialCoeff.pwqp \
+	philippe.pwqp \
+	product.pwqp \
+	split.pwqp \
+	test3Deg3Var.pwqp \
+	toplas.pwqp \
+	unexpanded.pwqp"
+
+for i in $BOUND_TESTS; do
+	echo $i;
+	./isl_bound$EXEEXT -T --bound=bernstein < $srcdir/test_inputs/$i || exit
+	./isl_bound$EXEEXT -T --bound=range < $srcdir/test_inputs/$i || exit
+done

external/llvm-project/polly/lib/External/isl/bset_from_bmap.c

@@ -0,0 +1,8 @@
+#include <isl/map_type.h>
+
+/* Return the basic set that was treated as the basic map "bmap".
+ */
+static __isl_give isl_basic_set *bset_from_bmap(__isl_take isl_basic_map *bmap)
+{
+	return (isl_basic_set *) bmap;
+}

external/llvm-project/polly/lib/External/isl/bset_to_bmap.c

@@ -0,0 +1,10 @@
+#include <isl/map_type.h>
+
+/* Treat "bset" as a basic map.
+ * Internally, isl_basic_set is defined to isl_basic_map, so in practice,
+ * this function performs a redundant cast.
+ */
+static __isl_give isl_basic_map *bset_to_bmap(__isl_take isl_basic_set *bset)
+{
+	return (isl_basic_map *) bset;
+}

external/llvm-project/polly/lib/External/isl/cat.c

@@ -0,0 +1,68 @@
+#include <assert.h>
+#include <isl/obj.h>
+#include <isl/printer.h>
+#include <isl/stream.h>
+#include <isl/options.h>
+
+struct isl_arg_choice cat_format[] = {
+	{"isl",		ISL_FORMAT_ISL},
+	{"omega",	ISL_FORMAT_OMEGA},
+	{"polylib",	ISL_FORMAT_POLYLIB},
+	{"ext-polylib",	ISL_FORMAT_EXT_POLYLIB},
+	{"latex",	ISL_FORMAT_LATEX},
+	{0}
+};
+
+struct isl_arg_choice cat_yaml_style[] = {
+	{ "block",	ISL_YAML_STYLE_BLOCK },
+	{ "flow",	ISL_YAML_STYLE_FLOW },
+	{ 0 }
+};
+
+struct cat_options {
+	struct isl_options	*isl;
+	unsigned		 format;
+	unsigned		 yaml_style;
+};
+
+ISL_ARGS_START(struct cat_options, cat_options_args)
+ISL_ARG_CHILD(struct cat_options, isl, "isl", &isl_options_args, "isl options")
+ISL_ARG_CHOICE(struct cat_options, format, 0, "format", \
+	cat_format,	ISL_FORMAT_ISL, "output format")
+ISL_ARG_CHOICE(struct cat_options, yaml_style, 0, "yaml-style", \
+	cat_yaml_style, ISL_YAML_STYLE_BLOCK, "output YAML style")
+ISL_ARGS_END
+
+ISL_ARG_DEF(cat_options, struct cat_options, cat_options_args)
+
+int main(int argc, char **argv)
+{
+	struct isl_ctx *ctx;
+	isl_stream *s;
+	struct isl_obj obj;
+	struct cat_options *options;
+	isl_printer *p;
+
+	options = cat_options_new_with_defaults();
+	assert(options);
+	argc = cat_options_parse(options, argc, argv, ISL_ARG_ALL);
+
+	ctx = isl_ctx_alloc_with_options(&cat_options_args, options);
+
+	s = isl_stream_new_file(ctx, stdin);
+	obj = isl_stream_read_obj(s);
+	isl_stream_free(s);
+
+	p = isl_printer_to_file(ctx, stdout);
+	p = isl_printer_set_output_format(p, options->format);
+	p = isl_printer_set_yaml_style(p, options->yaml_style);
+	p = obj.type->print(p, obj.v);
+	p = isl_printer_end_line(p);
+	isl_printer_free(p);
+
+	obj.type->free(obj.v);
+
+	isl_ctx_free(ctx);
+
+	return 0;
+}

external/llvm-project/polly/lib/External/isl/closure.c

@@ -0,0 +1,39 @@
+#include <assert.h>
+#include <isl/map.h>
+#include <isl/options.h>
+
+int main(int argc, char **argv)
+{
+	struct isl_ctx *ctx;
+	struct isl_map *map;
+	struct isl_options *options;
+	isl_printer *p;
+	int exact;
+
+	options = isl_options_new_with_defaults();
+	assert(options);
+	argc = isl_options_parse(options, argc, argv, ISL_ARG_ALL);
+
+	ctx = isl_ctx_alloc_with_options(&isl_options_args, options);
+
+	p = isl_printer_to_file(ctx, stdout);
+
+	map = isl_map_read_from_file(ctx, stdin);
+	map = isl_map_transitive_closure(map, &exact);
+	if (!exact)
+		p = isl_printer_print_str(p, "# NOT exact\n");
+	p = isl_printer_print_map(p, map);
+	p = isl_printer_end_line(p);
+	map = isl_map_compute_divs(map);
+	map = isl_map_coalesce(map);
+	p = isl_printer_print_str(p, "# coalesced\n");
+	p = isl_printer_print_map(p, map);
+	p = isl_printer_end_line(p);
+	isl_map_free(map);
+
+	isl_printer_free(p);
+
+	isl_ctx_free(ctx);
+
+	return 0;
+}

external/llvm-project/polly/lib/External/isl/codegen.c

@@ -0,0 +1,244 @@
+/*
+ * Copyright 2012,2014 Ecole Normale Superieure
+ *
+ * Use of this software is governed by the MIT license
+ *
+ * Written by Sven Verdoolaege,
+ * Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
+ */
+
+/* This program prints an AST that scans the domain elements of
+ * the domain of a given schedule in the order specified by
+ * the schedule tree or by their image(s) in the schedule map.
+ *
+ * The input consists of either a schedule tree or
+ * a sequence of three sets/relations.
+ * - a schedule map
+ * - a context
+ * - a relation describing AST generation options
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+#include <isl/ast.h>
+#include <isl/ast_build.h>
+#include <isl/options.h>
+#include <isl/set.h>
+#include <isl/union_set.h>
+#include <isl/union_map.h>
+#include <isl/stream.h>
+#include <isl/schedule_node.h>
+
+struct options {
+	struct isl_options	*isl;
+	unsigned		 atomic;
+	unsigned		 separate;
+};
+
+ISL_ARGS_START(struct options, options_args)
+ISL_ARG_CHILD(struct options, isl, "isl", &isl_options_args, "isl options")
+ISL_ARG_BOOL(struct options, atomic, 0, "atomic", 0,
+	"globally set the atomic option")
+ISL_ARG_BOOL(struct options, separate, 0, "separate", 0,
+	"globally set the separate option")
+ISL_ARGS_END
+
+ISL_ARG_DEF(cg_options, struct options, options_args)
+ISL_ARG_CTX_DEF(cg_options, struct options, options_args)
+
+/* Return a universal, 1-dimensional set with the given name.
+ */
+static __isl_give isl_union_set *universe(isl_ctx *ctx, const char *name)
+{
+	isl_space *space;
+
+	space = isl_space_set_alloc(ctx, 0, 1);
+	space = isl_space_set_tuple_name(space, isl_dim_set, name);
+	return isl_union_set_from_set(isl_set_universe(space));
+}
+
+/* Set the "name" option for the entire schedule domain.
+ */
+static __isl_give isl_union_map *set_universe(__isl_take isl_union_map *opt,
+	__isl_keep isl_union_map *schedule, const char *name)
+{
+	isl_ctx *ctx;
+	isl_union_set *domain, *target;
+	isl_union_map *option;
+
+	ctx = isl_union_map_get_ctx(opt);
+
+	domain = isl_union_map_range(isl_union_map_copy(schedule));
+	domain = isl_union_set_universe(domain);
+	target = universe(ctx, name);
+	option = isl_union_map_from_domain_and_range(domain, target);
+	opt = isl_union_map_union(opt, option);
+
+	return opt;
+}
+
+/* Update the build options based on the user-specified options.
+ *
+ * If the --separate or --atomic options were specified, then
+ * we clear any separate or atomic options that may already exist in "opt".
+ */
+static __isl_give isl_ast_build *set_options(__isl_take isl_ast_build *build,
+	__isl_take isl_union_map *opt, struct options *options,
+	__isl_keep isl_union_map *schedule)
+{
+	if (options->separate || options->atomic) {
+		isl_ctx *ctx;
+		isl_union_set *target;
+
+		ctx = isl_union_map_get_ctx(schedule);
+
+		target = universe(ctx, "separate");
+		opt = isl_union_map_subtract_range(opt, target);
+		target = universe(ctx, "atomic");
+		opt = isl_union_map_subtract_range(opt, target);
+	}
+
+	if (options->separate)
+		opt = set_universe(opt, schedule, "separate");
+	if (options->atomic)
+		opt = set_universe(opt, schedule, "atomic");
+
+	build = isl_ast_build_set_options(build, opt);
+
+	return build;
+}
+
+/* Construct an AST in case the schedule is specified by a union map.
+ *
+ * We read the context and the options from "s" and construct the AST.
+ */
+static __isl_give isl_ast_node *construct_ast_from_union_map(
+	__isl_take isl_union_map *schedule, __isl_keep isl_stream *s)
+{
+	isl_set *context;
+	isl_union_map *options_map;
+	isl_ast_build *build;
+	isl_ast_node *tree;
+	struct options *options;
+
+	options = isl_ctx_peek_cg_options(isl_stream_get_ctx(s));
+
+	context = isl_stream_read_set(s);
+	options_map = isl_stream_read_union_map(s);
+
+	build = isl_ast_build_from_context(context);
+	build = set_options(build, options_map, options, schedule);
+	tree = isl_ast_build_node_from_schedule_map(build, schedule);
+	isl_ast_build_free(build);
+
+	return tree;
+}
+
+/* If "node" is a band node, then replace the AST build options
+ * by "options".
+ */
+static __isl_give isl_schedule_node *node_set_options(
+	__isl_take isl_schedule_node *node, void *user)
+{
+	enum isl_ast_loop_type *type = user;
+	int i, n;
+
+	if (isl_schedule_node_get_type(node) != isl_schedule_node_band)
+		return node;
+
+	n = isl_schedule_node_band_n_member(node);
+	for (i = 0; i < n; ++i)
+		node = isl_schedule_node_band_member_set_ast_loop_type(node,
+								i, *type);
+	return node;
+}
+
+/* Replace the AST build options on all band nodes if requested
+ * by the user.
+ */
+static __isl_give isl_schedule *schedule_set_options(
+	__isl_take isl_schedule *schedule, struct options *options)
+{
+	enum isl_ast_loop_type type;
+
+	if (!options->separate && !options->atomic)
+		return schedule;
+
+	type = options->separate ? isl_ast_loop_separate : isl_ast_loop_atomic;
+	schedule = isl_schedule_map_schedule_node_bottom_up(schedule,
+						&node_set_options, &type);
+
+	return schedule;
+}
+
+/* Construct an AST in case the schedule is specified by a schedule tree.
+ */
+static __isl_give isl_ast_node *construct_ast_from_schedule(
+	__isl_take isl_schedule *schedule)
+{
+	isl_ast_build *build;
+	isl_ast_node *tree;
+	struct options *options;
+
+	options = isl_ctx_peek_cg_options(isl_schedule_get_ctx(schedule));
+
+	build = isl_ast_build_alloc(isl_schedule_get_ctx(schedule));
+	schedule = schedule_set_options(schedule, options);
+	tree = isl_ast_build_node_from_schedule(build, schedule);
+	isl_ast_build_free(build);
+
+	return tree;
+}
+
+/* Read an object from stdin.
+ * If it is a (union) map, then assume an input specified by
+ * schedule map, context and options and construct an AST from
+ * those elements
+ * If it is a schedule object, then construct the AST from the schedule.
+ */
+int main(int argc, char **argv)
+{
+	isl_ctx *ctx;
+	isl_stream *s;
+	isl_ast_node *tree = NULL;
+	struct options *options;
+	isl_printer *p;
+	struct isl_obj obj;
+	int r = EXIT_SUCCESS;
+
+	options = cg_options_new_with_defaults();
+	assert(options);
+	ctx = isl_ctx_alloc_with_options(&options_args, options);
+	isl_options_set_ast_build_detect_min_max(ctx, 1);
+	argc = cg_options_parse(options, argc, argv, ISL_ARG_ALL);
+
+	s = isl_stream_new_file(ctx, stdin);
+	obj = isl_stream_read_obj(s);
+	if (obj.v == NULL) {
+		r = EXIT_FAILURE;
+	} else if (obj.type == isl_obj_map) {
+		isl_union_map *umap;
+
+		umap = isl_union_map_from_map(obj.v);
+		tree = construct_ast_from_union_map(umap, s);
+	} else if (obj.type == isl_obj_union_map) {
+		tree = construct_ast_from_union_map(obj.v, s);
+	} else if (obj.type == isl_obj_schedule) {
+		tree = construct_ast_from_schedule(obj.v);
+	} else {
+		obj.type->free(obj.v);
+		isl_die(ctx, isl_error_invalid, "unknown input",
+			r = EXIT_FAILURE);
+	}
+	isl_stream_free(s);
+
+	p = isl_printer_to_file(ctx, stdout);
+	p = isl_printer_set_output_format(p, ISL_FORMAT_C);
+	p = isl_printer_print_ast_node(p, tree);
+	isl_printer_free(p);
+
+	isl_ast_node_free(tree);
+
+	isl_ctx_free(ctx);
+	return r;
+}

external/llvm-project/polly/lib/External/isl/codegen_test.sh.in

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+EXEEXT=@EXEEXT@
+srcdir=@srcdir@
+
+failed=0
+
+for i in $srcdir/test_inputs/codegen/*.st \
+		$srcdir/test_inputs/codegen/cloog/*.st; do
+	echo $i;
+	base=`basename $i .st`
+	test=test-$base.c
+	dir=`dirname $i`
+	ref=$dir/$base.c
+	(./isl_codegen$EXEEXT < $i > $test &&
+	 diff -uw $ref $test && rm $test) || failed=1
+done
+for i in $srcdir/test_inputs/codegen/*.in \
+		$srcdir/test_inputs/codegen/omega/*.in \
+		$srcdir/test_inputs/codegen/pldi2012/*.in; do
+	echo $i;
+	base=`basename $i .in`
+	test=test-$base.c
+	dir=`dirname $i`
+	ref=$dir/$base.c
+	(./isl_codegen$EXEEXT < $i > $test &&
+	 diff -uw $ref $test && rm $test) || failed=1
+done
+
+test $failed -eq 0 || exit

external/llvm-project/polly/lib/External/isl/compile

@@ -0,0 +1,347 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2012-10-14.11; # UTC
+
+# Copyright (C) 1999-2014 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" ""	$nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv/,$2, in
+	*,$file_conv,*)
+	  ;;
+	mingw/*)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin/*)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine/*)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+  # Assume a capable shell
+  lib_path=
+  shared=:
+  linker_opts=
+  for arg
+  do
+    if test -n "$eat"; then
+      eat=
+    else
+      case $1 in
+	-o)
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
+	  eat=1
+	  case $2 in
+	    *.o | *.[oO][bB][jJ])
+	      func_file_conv "$2"
+	      set x "$@" -Fo"$file"
+	      shift
+	      ;;
+	    *)
+	      func_file_conv "$2"
+	      set x "$@" -Fe"$file"
+	      shift
+	      ;;
+	  esac
+	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-I*)
+	  func_file_conv "${1#-I}" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-l*)
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
+	-L*)
+	  func_cl_dashL "${1#-L}"
+	  ;;
+	-static)
+	  shared=false
+	  ;;
+	-Wl,*)
+	  arg=${1#-Wl,}
+	  save_ifs="$IFS"; IFS=','
+	  for flag in $arg; do
+	    IFS="$save_ifs"
+	    linker_opts="$linker_opts $flag"
+	  done
+	  IFS="$save_ifs"
+	  ;;
+	-Xlinker)
+	  eat=1
+	  linker_opts="$linker_opts $2"
+	  ;;
+	-*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+	  func_file_conv "$1"
+	  set x "$@" -Tp"$file"
+	  shift
+	  ;;
+	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+	  func_file_conv "$1" mingw
+	  set x "$@" "$file"
+	  shift
+	  ;;
+	*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+      esac
+    fi
+    shift
+  done
+  if test -n "$linker_opts"; then
+    linker_opts="-link$linker_opts"
+  fi
+  exec "$@" $linker_opts
+  exit 1
+}
+
+eat=
+
+case $1 in
+  '')
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit $?
+    ;;
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
+    func_cl_wrapper "$@"      # Doesn't return...
+    ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no '-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # '.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End: