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111
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1 /* run-rtl-passes.c - Run RTL passes directly from frontend
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2 Copyright (C) 2016-2017 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #include "config.h"
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21 #include "system.h"
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22 #include "coretypes.h"
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23 #include "target.h"
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24 #include "rtl.h"
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25 #include "function.h"
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26 #include "basic-block.h"
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27 #include "tree-pass.h"
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28 #include "context.h"
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29 #include "pass_manager.h"
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30 #include "bitmap.h"
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31 #include "df.h"
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32 #include "regs.h"
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33 #include "insn-attr-common.h" /* for INSN_SCHEDULING. */
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34 #include "insn-attr.h" /* for init_sched_attrs. */
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35 #include "run-rtl-passes.h"
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36
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37 /* Run the backend passes, starting at the given pass.
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38 Take ownership of INITIAL_PASS_NAME. */
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39
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40 void
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41 run_rtl_passes (char *initial_pass_name)
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42 {
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43 cfun->pass_startwith = initial_pass_name;
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44 max_regno = max_reg_num ();
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45
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46 /* Pass "expand" normally sets this up. */
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47 #ifdef INSN_SCHEDULING
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48 init_sched_attrs ();
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49 #endif
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50
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51 bitmap_obstack_initialize (NULL);
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52 bitmap_obstack_initialize (®_obstack);
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53
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54 opt_pass *rest_of_compilation
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55 = g->get_passes ()->get_rest_of_compilation ();
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56 gcc_assert (rest_of_compilation);
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57 execute_pass_list (cfun, rest_of_compilation);
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58
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59 opt_pass *clean_slate = g->get_passes ()->get_clean_slate ();
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60 gcc_assert (clean_slate);
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61 execute_pass_list (cfun, clean_slate);
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62
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63 bitmap_obstack_release (®_obstack);
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64
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65 cfun->curr_properties |= PROP_rtl;
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66 }
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