gcc/
	* Makefile.in (dg_target_exps): Remove.
	(check_gcc_parallelize): Change to just an upper bound number.
	(check-%-subtargets): Always print the non-parallelized goals.
	(check_p_vars, check_p_comma, check_p_subwork): Remove.
	(check_p_count, check_p_numbers0, check_p_numbers1, check_p_numbers2,
	check_p_numbers3, check_p_numbers4, check_p_numbers5,
	check_p_numbers6): New variables.
	(check_p_numbers): Set to sequence from 1 to 9999.
	(check_p_subdirs): Set to sequence from 1 to minimum of
	$(check_p_count) and either GCC_TEST_PARALLEL_SLOTS env var if set,
	or 128.
	(check-%, check-parallel-%): Rewritten so that for parallelized
	testing each job runs all the *.exp files, with
	GCC_RUNTEST_PARALLELIZE_DIR set in environment.
gcc/go/
	* Make-lang.in (check_go_parallelize): Change to just an upper bound
	number.
gcc/fortran/
	* Make-lang.in (check_gfortran_parallelize): Change to just an upper
	bound number.
gcc/cp/
	* Make-lang.in (check_g++_parallelize): Change to just an upper bound
	number.
gcc/objc/
	* Make-lang.in (check_objc_parallelize): Change to just an upper
	bound number.
gcc/ada/
	* gcc-interface/Make-lang.in (check_acats_numbers0,
	check_acats_numbers1, check_acats_numbers2, check_acats_numbers3,
	check_acats_numbers4, check_acats_numbers5, check_acats_numbers6,
	check_acats_numbers, check_acats_subdirs): New variables.
	(check_acats_targets): Use $(check_acats_subdirs).
	(check-acats, check-acats%): Rewritten so that for parallelized
	testing each job runs all the chapters files, with
	GCC_RUNTEST_PARALLELIZE_DIR set in environment.  Prepare the support
	directory sequentially and share it.
	(check-acats-subtargets): Always print just check-acats.
gcc/testsuite/
	* lib/gcc-defs.exp (gcc_parallel_test_run_p,
	gcc_parallel_test_enable): New procedures.  If
	GCC_RUNTEST_PARALLELIZE_DIR is set in environment, override
	runtest_file_p to invoke also gcc_parallel_test_run_p.
	* g++.dg/guality/guality.exp (check_guality): Save/restore
	test_counts array around the body of the procedure.
	* gcc.dg/guality/guality.exp (check_guality): Likewise.
	* g++.dg/plugin/plugin.exp: Run all the tests serially
	by the first parallel runtest encountering it.
	* gcc.dg/plugin/plugin.exp: Likewise.
	* gcc.misc-tests/matrix1.exp: Likewise.
	* gcc.misc-tests/dhry.exp: Likewise.
	* gcc.misc-tests/acker1.exp: Likewise.
	* gcc.misc-tests/linkage.exp: Likewise.
	* gcc.misc-tests/mg.exp: Likewise.
	* gcc.misc-tests/mg-2.exp: Likewise.
	* gcc.misc-tests/sort2.exp: Likewise.
	* gcc.misc-tests/sieve.exp: Likewise.
	* gcc.misc-tests/options.exp: Likewise.
	* gcc.misc-tests/help.exp: Likewise.
	* go.test/go-test.exp (go-gc-tests): Use
	gcc_parallel_test_enable {0, 1} around all handling of
	each test.
	* objc.dg/gnu-encoding/gnu-encoding.exp: Likewise.
	* ada/acats/run_all.sh: Parallelize using mkdir inside of
	a shared directory.  Avoid forking and expr uses if
	shell supports $(()).
libstdc++-v3/
	* testsuite/Makefile.am (check_p_numbers0, check_p_numbers1,
	check_p_numbers2, check_p_numbers3, check_p_numbers4,
	check_p_numbers5, check_p_numbers6, check_p_numbers,
	check_p_subdirs): New variables.
	(check_DEJAGNU_normal_targets): Use check_p_subdirs.
	(check-DEJAGNU): Rewritten so that for parallelized
	testing each job runs all the *.exp files, with
	GCC_RUNTEST_PARALLELIZE_DIR set in environment.
	* testsuite/Makefile.in: Regenerated.
	* testsuite/lib/libstdc++.exp (gcc_parallel_test_run_p,
	gcc_parallel_test_enable): New procedures.  If
	GCC_RUNTEST_PARALLELIZE_DIR is set in environment, override
	runtest_file_p to invoke also gcc_parallel_test_run_p.
	* testsuite/libstdc++-abi/abi.exp: Run all the tests serially
	by the first parallel runtest encountering it.  Fix up path
	of the extract_symvers script.
	* testsuite/libstdc++-xmethods/xmethods.exp: Run all the tests
	serially by the first parallel runtest encountering it.  Run
	dg-finish even in case of error.

From-SVN: r215273