projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| d9b950dd DM |
1 | /* Unit tests for RTL-handling. |
| 2 | Copyright (C) 2015-2016 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 | #include "config.h" | |
| 21 | #include "system.h" | |
| 22 | #include "coretypes.h" | |
| 23 | #include "tm.h" | |
| 24 | #include "opts.h" | |
| 25 | #include "signop.h" | |
| 26 | #include "hash-set.h" | |
| 27 | #include "fixed-value.h" | |
| 28 | #include "alias.h" | |
| 29 | #include "flags.h" | |
| 30 | #include "symtab.h" | |
| 31 | #include "tree-core.h" | |
| 32 | #include "stor-layout.h" | |
| 33 | #include "tree.h" | |
| 34 | #include "stringpool.h" | |
| 35 | #include "stor-layout.h" | |
| 36 | #include "rtl.h" | |
| 37 | #include "pretty-print.h" | |
| 38 | #include "cfgbuild.h" | |
| 39 | #include "print-rtl.h" | |
| 40 | #include "selftest.h" | |
| 41 | #include "function.h" | |
| 42 | #include "emit-rtl.h" | |
| 43 | ||
| 44 | #if CHECKING_P | |
| 45 | ||
| 46 | namespace selftest { | |
| 47 | ||
| 48 | /* Verify that PAT is printed as EXPECTED. Helper function for | |
| 49 | selftests. */ | |
| 50 | ||
| 51 | static void | |
| 52 | verify_print_pattern (const char *expected, rtx pat) | |
| 53 | { | |
| 54 | pretty_printer pp; | |
| 55 | print_pattern (&pp, pat, 1); | |
| 56 | ASSERT_STREQ (expected, pp_formatted_text (&pp)); | |
| 57 | } | |
| 58 | ||
| 59 | /* Unit testing of "single_set". */ | |
| 60 | ||
| 61 | static void | |
| 62 | test_single_set () | |
| 63 | { | |
| 64 | /* A label is not a SET. */ | |
| 65 | ASSERT_EQ (NULL_RTX, single_set (gen_label_rtx ())); | |
| 66 | ||
| 67 | /* An unconditional jump insn is a single SET. */ | |
| 68 | rtx set_pc = gen_rtx_SET (pc_rtx, | |
| 69 | gen_rtx_LABEL_REF (VOIDmode, | |
| 70 | gen_label_rtx ())); | |
| 71 | rtx_insn *jump_insn = emit_jump_insn (set_pc); | |
| 72 | ASSERT_EQ (set_pc, single_set (jump_insn)); | |
| 73 | ||
| 74 | /* etc */ | |
| 75 | } | |
| 76 | ||
| 77 | /* Construct an unconditional jump to a label, and verify that | |
| 78 | various properties of it are sane. */ | |
| 79 | ||
| 80 | static void | |
| 81 | test_uncond_jump () | |
| 82 | { | |
| 83 | rtx_insn *label = gen_label_rtx (); | |
| 84 | rtx jump_pat = gen_rtx_SET (pc_rtx, | |
| 85 | gen_rtx_LABEL_REF (VOIDmode, | |
| 86 | label)); | |
| 87 | ASSERT_EQ (SET, jump_pat->code); | |
| 88 | ASSERT_EQ (LABEL_REF, SET_SRC (jump_pat)->code); | |
| 89 | ASSERT_EQ (label, LABEL_REF_LABEL (SET_SRC (jump_pat))); | |
| 90 | ASSERT_EQ (PC, SET_DEST (jump_pat)->code); | |
| 91 | ||
| 92 | verify_print_pattern ("pc=L0", jump_pat); | |
| 93 | ||
| 94 | rtx_insn *jump_insn = emit_jump_insn (jump_pat); | |
| 95 | ASSERT_FALSE (any_condjump_p (jump_insn)); | |
| 96 | ASSERT_TRUE (any_uncondjump_p (jump_insn)); | |
| 97 | ASSERT_TRUE (pc_set (jump_insn)); | |
| 98 | ASSERT_TRUE (simplejump_p (jump_insn)); | |
| 99 | ASSERT_TRUE (onlyjump_p (jump_insn)); | |
| 100 | ASSERT_TRUE (control_flow_insn_p (jump_insn)); | |
| 101 | } | |
| 102 | ||
| 103 | /* Run all of the selftests within this file. */ | |
| 104 | ||
| 105 | void | |
| 106 | rtl_tests_c_tests () | |
| 107 | { | |
| 108 | test_single_set (); | |
| 109 | test_uncond_jump (); | |
| 110 | ||
| 111 | /* Purge state. */ | |
| 112 | set_first_insn (NULL); | |
| 113 | set_last_insn (NULL); | |
| 114 | } | |
| 115 | ||
| 116 | } // namespace selftest | |
| 117 | #endif /* #if CHECKING_P */ |