2014-06-8  Roman Gareev  <gareevroman@gmail.com>

	gcc/
	* Makefile.in:
	Add the compilation of graphite-isl-ast-to-gimple.o.
	* common.opt:
	Add new switch fgraphite-code-generator=[isl|cloog].
	* flag-types.h:
	Add new enum fgraphite_generator.
	* graphite-clast-to-gimple.h:
	The definition of the struct bb_pbb_def is moved to graphite-htab.h.
	Add inclusion of the hash-table.h.
	* graphite-htab.h:
	The declaration of the function gloog is moved
	to graphite-clast-to-gimple.h.
	* graphite-isl-ast-to-gimple.c: New.
	* graphite-isl-ast-to-gimple.h: New.
	* graphite.c (graphite_transform_loops):
	Add choice of Graphite code generator,
	which depends on flag_graphite_code_gen.

	gcc/testsuite/gcc.dg/graphite/scop-23.c: New testcase that checks that
	the dump is generated.