| 1 | /* run-rtl-passes.cc - Run RTL passes directly from frontend |
|---|---|
| 2 | Copyright (C) 2016-2023 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 "target.h" |
| 24 | #include "rtl.h" |
| 25 | #include "function.h" |
| 26 | #include "basic-block.h" |
| 27 | #include "tree-pass.h" |
| 28 | #include "context.h" |
| 29 | #include "pass_manager.h" |
| 30 | #include "bitmap.h" |
| 31 | #include "df.h" |
| 32 | #include "regs.h" |
| 33 | #include "output.h" |
| 34 | #include "debug.h" /* for debug_hooks. */ |
| 35 | #include "insn-attr-common.h" /* for INSN_SCHEDULING. */ |
| 36 | #include "insn-attr.h" /* for init_sched_attrs. */ |
| 37 | #include "run-rtl-passes.h" |
| 38 | |
| 39 | /* Run the backend passes, starting at the given pass. |
| 40 | Take ownership of INITIAL_PASS_NAME. */ |
| 41 | |
| 42 | void |
| 43 | run_rtl_passes (char *initial_pass_name) |
| 44 | { |
| 45 | cfun->pass_startwith = initial_pass_name; |
| 46 | max_regno = max_reg_num (); |
| 47 | |
| 48 | /* cgraphunit.cc normally handles this. */ |
| 49 | switch_to_section (text_section); |
| 50 | (*debug_hooks->assembly_start) (); |
| 51 | |
| 52 | if (initial_pass_name) |
| 53 | { |
| 54 | /* Pass "expand" normally sets this up. */ |
| 55 | #ifdef INSN_SCHEDULING |
| 56 | init_sched_attrs (); |
| 57 | #endif |
| 58 | bitmap_obstack_initialize (NULL); |
| 59 | bitmap_obstack_initialize (®_obstack); |
| 60 | opt_pass *rest_of_compilation |
| 61 | = g->get_passes ()->get_rest_of_compilation (); |
| 62 | gcc_assert (rest_of_compilation); |
| 63 | execute_pass_list (cfun, rest_of_compilation); |
| 64 | |
| 65 | opt_pass *clean_slate = g->get_passes ()->get_clean_slate (); |
| 66 | gcc_assert (clean_slate); |
| 67 | execute_pass_list (cfun, clean_slate); |
| 68 | bitmap_obstack_release (®_obstack); |
| 69 | } |
| 70 | else |
| 71 | { |
| 72 | opt_pass *clean_slate = g->get_passes ()->get_clean_slate (); |
| 73 | gcc_assert (clean_slate); |
| 74 | execute_pass_list (cfun, clean_slate); |
| 75 | } |
| 76 | |
| 77 | cfun->curr_properties |= PROP_rtl; |
| 78 | free (ptr: initial_pass_name); |
| 79 | } |
| 80 |