gcc/selftest-rtl.h

   1 /* A self-testing framework, for use by -fself-test.
   2    Copyright (C) 2016-2018 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef GCC_SELFTEST_RTL_H
  21 #define GCC_SELFTEST_RTL_H
  22
  23 /* The selftest code should entirely disappear in a production
  24    configuration, hence we guard all of it with #if CHECKING_P.  */
  25
  26 #if CHECKING_P
  27
  28 class rtx_reuse_manager;
  29
  30 namespace selftest {
  31
  32 /* Verify that X is dumped as EXPECTED_DUMP, using compact mode.
  33    Use LOC as the effective location when reporting errors.  */
  34
  35 extern void
  36 assert_rtl_dump_eq (const location &loc, const char *expected_dump, rtx x,
  37                     rtx_reuse_manager *reuse_manager);
  38
  39 /* Verify that RTX is dumped as EXPECTED_DUMP, using compact mode.  */
  40
  41 #define ASSERT_RTL_DUMP_EQ(EXPECTED_DUMP, RTX) \
  42   assert_rtl_dump_eq (SELFTEST_LOCATION, (EXPECTED_DUMP), (RTX), NULL)
  43
  44 /* As above, but using REUSE_MANAGER when dumping.  */
  45
  46 #define ASSERT_RTL_DUMP_EQ_WITH_REUSE(EXPECTED_DUMP, RTX, REUSE_MANAGER) \
  47   assert_rtl_dump_eq (SELFTEST_LOCATION, (EXPECTED_DUMP), (RTX), \
  48                       (REUSE_MANAGER))
  49
  50 #define ASSERT_RTX_EQ(EXPECTED, ACTUAL)                                 \
  51   SELFTEST_BEGIN_STMT                                                   \
  52   const char *desc_ = "ASSERT_RTX_EQ (" #EXPECTED ", " #ACTUAL ")";     \
  53   ::selftest::assert_rtx_eq_at (SELFTEST_LOCATION, desc_, (EXPECTED),   \
  54                                 (ACTUAL));                              \
  55   SELFTEST_END_STMT
  56
  57 extern void assert_rtx_eq_at (const location &, const char *, rtx, rtx);
  58
  59 /* Evaluate rtx EXPECTED and ACTUAL and compare them with ==
  60    (i.e. pointer equality), calling ::selftest::pass if they are
  61    equal, aborting if they are non-equal.  */
  62
  63 #define ASSERT_RTX_PTR_EQ(EXPECTED, ACTUAL) \
  64   SELFTEST_BEGIN_STMT                                                   \
  65   const char *desc_ = "ASSERT_RTX_PTR_EQ (" #EXPECTED ", " #ACTUAL ")";  \
  66   ::selftest::assert_rtx_ptr_eq_at (SELFTEST_LOCATION, desc_, (EXPECTED), \
  67                                     (ACTUAL));                          \
  68   SELFTEST_END_STMT
  69
  70 /* Compare rtx EXPECTED and ACTUAL by pointer equality, calling
  71    ::selftest::pass if they are equal, aborting if they are non-equal.
  72    LOC is the effective location of the assertion, MSG describes it.  */
  73
  74 extern void assert_rtx_ptr_eq_at (const location &loc, const char *msg,
  75                                   rtx expected, rtx actual);
  76
  77 /* A class for testing RTL function dumps.  */
  78
  79 class rtl_dump_test
  80 {
  81  public:
  82   /* Takes ownership of PATH.  */
  83   rtl_dump_test (const location &loc, char *path);
  84   ~rtl_dump_test ();
  85
  86  private:
  87   char *m_path;
  88 };
  89
  90 /* Get the insn with the given uid, or NULL if not found.  */
  91
  92 extern rtx_insn *get_insn_by_uid (int uid);
  93
  94 extern void verify_three_block_rtl_cfg (function *fun);
  95
  96 } /* end of namespace selftest.  */
  97
  98 #endif /* #if CHECKING_P */
  99
 100 #endif /* GCC_SELFTEST_RTL_H */