projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 08df6c0d AO |
1 | /* Infrastructure for tracking user variable locations and values |
| 2 | throughout compilation. | |
| 3 | Copyright (C) 2010, 2011, 2012 Free Software Foundation, Inc. | |
| 4 | Contributed by Alexandre Oliva <aoliva@redhat.com>. | |
| 5 | ||
| 6 | This file is part of GCC. | |
| 7 | ||
| 8 | GCC is free software; you can redistribute it and/or modify it under | |
| 9 | the terms of the GNU General Public License as published by the Free | |
| 10 | Software Foundation; either version 3, or (at your option) any later | |
| 11 | version. | |
| 12 | ||
| 13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 | for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU General Public License | |
| 19 | along with GCC; see the file COPYING3. If not see | |
| 20 | <http://www.gnu.org/licenses/>. */ | |
| 21 | ||
| 22 | #ifndef GCC_VALTRACK_H | |
| 23 | #define GCC_VALTRACK_H | |
| 24 | ||
| 25 | #include "bitmap.h" | |
| 26 | #include "df.h" | |
| 27 | #include "rtl.h" | |
| 28 | #include "basic-block.h" | |
| 29 | ||
| 30 | /* Debug uses of dead regs. */ | |
| 31 | ||
| 32 | /* Node of a linked list of uses of dead REGs in debug insns. */ | |
| 33 | struct dead_debug_use | |
| 34 | { | |
| 35 | df_ref use; | |
| 36 | struct dead_debug_use *next; | |
| 37 | }; | |
| 38 | ||
| 39 | /* Linked list of the above, with a bitmap of the REGs in the | |
| 40 | list. */ | |
| 41 | struct dead_debug | |
| 42 | { | |
| 43 | struct dead_debug_use *head; | |
| 44 | bitmap used; | |
| 45 | bitmap to_rescan; | |
| 46 | }; | |
| 47 | ||
| 48 | /* This type controls the behavior of dead_debug_insert_temp WRT | |
| 49 | UREGNO and INSN. */ | |
| 50 | enum debug_temp_where | |
| 51 | { | |
| 52 | /* Bind a newly-created debug temporary to a REG for UREGNO, and | |
| 53 | insert the debug insn before INSN. REG is expected to die at | |
| 54 | INSN. */ | |
| 55 | DEBUG_TEMP_BEFORE_WITH_REG = -1, | |
| 56 | /* Bind a newly-created debug temporary to the value INSN stores | |
| 57 | in REG, and insert the debug insn before INSN. */ | |
| 58 | DEBUG_TEMP_BEFORE_WITH_VALUE = 0, | |
| 59 | /* Bind a newly-created debug temporary to a REG for UREGNO, and | |
| 60 | insert the debug insn after INSN. REG is expected to be set at | |
| 61 | INSN. */ | |
| 62 | DEBUG_TEMP_AFTER_WITH_REG = 1 | |
| 63 | }; | |
| 64 | ||
| 65 | extern void dead_debug_init (struct dead_debug *, bitmap); | |
| 66 | extern void dead_debug_finish (struct dead_debug *, bitmap); | |
| 67 | extern void dead_debug_add (struct dead_debug *, df_ref, unsigned int); | |
| 68 | extern int dead_debug_insert_temp (struct dead_debug *, | |
| 69 | unsigned int uregno, rtx insn, | |
| 70 | enum debug_temp_where); | |
| 71 | ||
| 72 | extern void propagate_for_debug (rtx, rtx, rtx, rtx, basic_block); | |
| 73 | ||
| 74 | ||
| 75 | #endif /* GCC_VALTRACK_H */ |