Selftest framework

gcc/ChangeLog:
	* Makefile.in (OBJS): Add function-tests.o,
	hash-map-tests.o, hash-set-tests.o, rtl-tests.o,
	selftest-run-tests.o.
	(OBJS-libcommon): Add selftest.o.
	(OBJS-libcommon-target): Add selftest.o.
	(all.internal): Add "selftest".
	(all.cross): Likewise.
	(selftest): New phony target.
	(s-selftest): New target.
	(selftest-gdb): New phony target.
	(COLLECT2_OBJS): Add selftest.o.
	* bitmap.c: Include "selftest.h".
	(selftest::test_gc_alloc): New function.
	(selftest::test_set_range): New function.
	(selftest::test_clear_bit_in_middle): New function.
	(selftest::test_copying): New function.
	(selftest::test_bitmap_single_bit_set_p): New function.
	(selftest::bitmap_c_tests): New function.
	* common.opt (fself-test): New.
	* diagnostic-show-locus.c: Include "selftest.h".
	(make_range): New function.
	(test_range_contains_point_for_single_point): New function.
	(test_range_contains_point_for_single_line): New function.
	(test_range_contains_point_for_multiple_lines): New function.
	(assert_eq): New function.
	(test_get_line_width_without_trailing_whitespace): New function.
	(selftest::diagnostic_show_locus_c_tests): New function.
	* et-forest.c: Include "selftest.h".
	(selftest::test_single_node): New function.
	(selftest::test_simple_tree): New function.
	(selftest::test_disconnected_nodes): New function.
	(selftest::et_forest_c_tests): New function.
	* fold-const.c: Include "selftest.h".
	(selftest::assert_binop_folds_to_const): New function.
	(selftest::assert_binop_folds_to_nonlvalue): New function.
	(selftest::test_arithmetic_folding): New function.
	(selftest::fold_const_c_tests): New function.
	* function-tests.c: New file.
	* gimple.c: Include "selftest.h".
	Include "gimple-pretty-print.h".
	(selftest::verify_gimple_pp): New function.
	(selftest::test_assign_single): New function.
	(selftest::test_assign_binop): New function.
	(selftest::test_nop_stmt): New function.
	(selftest::test_return_stmt): New function.
	(selftest::test_return_without_value): New function.
	(selftest::gimple_c_tests): New function.
	* hash-map-tests.c: New file.
	* hash-set-tests.c: New file.
	* input.c: Include "selftest.h".
	(selftest::assert_loceq): New function.
	(selftest::test_accessing_ordinary_linemaps): New function.
	(selftest::test_unknown_location): New function.
	(selftest::test_builtins): New function.
	(selftest::test_reading_source_line): New function.
	(selftest::input_c_tests): New function.
	* rtl-tests.c: New file.
	* selftest-run-tests.c: New file.
	* selftest.c: New file.
	* selftest.h: New file.
	* spellcheck.c: Include "selftest.h".
	(selftest::levenshtein_distance_unit_test_oneway): New function,
	adapted from testsuite/gcc.dg/plugin/levenshtein_plugin.c.
	(selftest::levenshtein_distance_unit_test): Likewise.
	(selftest::spellcheck_c_tests): Likewise.
	* toplev.c: Include selftest.h.
	(toplev::run_self_tests): New.
	(toplev::main): Handle -fself-test.
	* toplev.h (toplev::run_self_tests): New.
	* tree.c: Include "selftest.h".
	(selftest::test_integer_constants): New function.
	(selftest::test_identifiers): New function.
	(selftest::test_labels): New function.
	(selftest::tree_c_tests): New function.
	* tree-cfg.c: Include "selftest.h".
	(selftest::push_fndecl): New function.
	(selftest::test_linear_chain): New function.
	(selftest::test_diamond): New function.
	(selftest::test_fully_connected): New function.
	(selftest::tree_cfg_c_tests): New function.
	* vec.c: Include "selftest.h".
	(selftest::safe_push_range): New function.
	(selftest::test_quick_push): New function.
	(selftest::test_safe_push): New function.
	(selftest::test_truncate): New function.
	(selftest::test_safe_grow_cleared): New function.
	(selftest::test_pop): New function.
	(selftest::test_safe_insert): New function.
	(selftest::test_ordered_remove): New function.
	(selftest::test_unordered_remove): New function.
	(selftest::test_block_remove): New function.
	(selftest::reverse_cmp): New function.
	(selftest::test_qsort): New function.
	(selftest::vec_c_tests): New function.c.
	* wide-int.cc: Include selftest.h and wide-int-print.h.
	(selftest::from_int <wide_int>): New function.
	(selftest::from_int <offset_int>): New function.
	(selftest::from_int <widest_int>): New function.
	(selftest::assert_deceq): New function.
	(selftest::assert_hexeq): New function.
	(selftest::test_printing <VALUE_TYPE>): New function template.
	(selftest::test_ops <VALUE_TYPE>): New function template.
	(selftest::test_comparisons <VALUE_TYPE>): New function template.
	(selftest::run_all_wide_int_tests <VALUE_TYPE>): New function
	template.
	(selftest::wide_int_cc_tests): New function.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/levenshtein-test-1.c: Delete.
	* gcc.dg/plugin/levenshtein_plugin.c: Delete.
	* gcc.dg/plugin/plugin.exp (plugin_test_list): Remove the
	above.

From-SVN: r237144

1 files changed, 117 insertions, 0 deletions

diff --git a/gcc/rtl-tests.c b/gcc/rtl-tests.c
new file mode 100644
index 0000000..3e9ebae
--- /dev/null
+++ b/gcc/rtl-tests.c
@@ -0,0 +1,117 @@
+/* Unit tests for RTL-handling.
+   Copyright (C) 2015-2016 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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 3, or (at your option) any later
+version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "opts.h"
+#include "signop.h"
+#include "hash-set.h"
+#include "fixed-value.h"
+#include "alias.h"
+#include "flags.h"
+#include "symtab.h"
+#include "tree-core.h"
+#include "stor-layout.h"
+#include "tree.h"
+#include "stringpool.h"
+#include "stor-layout.h"
+#include "rtl.h"
+#include "pretty-print.h"
+#include "cfgbuild.h"
+#include "print-rtl.h"
+#include "selftest.h"
+#include "function.h"
+#include "emit-rtl.h"
+
+#if CHECKING_P
+
+namespace selftest {
+
+/* Verify that PAT is printed as EXPECTED.  Helper function for
+   selftests.  */
+
+static void
+verify_print_pattern (const char *expected, rtx pat)
+{
+  pretty_printer pp;
+  print_pattern (&pp, pat, 1);
+  ASSERT_STREQ (expected, pp_formatted_text (&pp));
+}
+
+/* Unit testing of "single_set".  */
+
+static void
+test_single_set ()
+{
+  /* A label is not a SET.  */
+  ASSERT_EQ (NULL_RTX, single_set (gen_label_rtx ()));
+
+  /* An unconditional jump insn is a single SET.  */
+  rtx set_pc = gen_rtx_SET (pc_rtx,
+			    gen_rtx_LABEL_REF (VOIDmode,
+					       gen_label_rtx ()));
+  rtx_insn *jump_insn = emit_jump_insn (set_pc);
+  ASSERT_EQ (set_pc, single_set (jump_insn));
+
+  /* etc */
+}
+
+/* Construct an unconditional jump to a label, and verify that
+   various properties of it are sane.  */
+
+static void
+test_uncond_jump ()
+{
+  rtx_insn *label = gen_label_rtx ();
+  rtx jump_pat = gen_rtx_SET (pc_rtx,
+			      gen_rtx_LABEL_REF (VOIDmode,
+						 label));
+  ASSERT_EQ (SET, jump_pat->code);
+  ASSERT_EQ (LABEL_REF, SET_SRC (jump_pat)->code);
+  ASSERT_EQ (label, LABEL_REF_LABEL (SET_SRC (jump_pat)));
+  ASSERT_EQ (PC, SET_DEST (jump_pat)->code);
+
+  verify_print_pattern ("pc=L0", jump_pat);
+
+  rtx_insn *jump_insn = emit_jump_insn (jump_pat);
+  ASSERT_FALSE (any_condjump_p (jump_insn));
+  ASSERT_TRUE (any_uncondjump_p (jump_insn));
+  ASSERT_TRUE (pc_set (jump_insn));
+  ASSERT_TRUE (simplejump_p (jump_insn));
+  ASSERT_TRUE (onlyjump_p (jump_insn));
+  ASSERT_TRUE (control_flow_insn_p (jump_insn));
+}
+
+/* Run all of the selftests within this file.  */
+
+void
+rtl_tests_c_tests ()
+{
+  test_single_set ();
+  test_uncond_jump ();
+
+  /* Purge state.  */
+  set_first_insn (NULL);
+  set_last_insn (NULL);
+}
+
+} // namespace selftest
+#endif /* #if CHECKING_P */