URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [config/] [epiphany/] [mode-switch-use.c] - Rev 758
Go to most recent revision | Compare with Previous | Blame | View Log
/* Insert USEs in instructions that require mode switching. This should probably be merged into mode-switching.c . Copyright (C) 2011 Free Software Foundation, Inc. Contributed by Embecosm on behalf of Adapteva, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ #include "config.h" #include "system.h" #include "coretypes.h" #include "tm.h" #include "rtl.h" #include "function.h" #include "emit-rtl.h" #include "tree-pass.h" #include "insn-attr.h" #include "insn-config.h" #include "recog.h" #include "tm_p.h" #include "df.h" #ifndef TARGET_INSERT_MODE_SWITCH_USE #define TARGET_INSERT_MODE_SWITCH_USE NULL #endif static unsigned int insert_uses (void) { static const int num_modes[] = NUM_MODES_FOR_MODE_SWITCHING; #define N_ENTITIES ARRAY_SIZE (num_modes) int e; void (*target_insert_mode_switch_use) (rtx insn, int, int) = TARGET_INSERT_MODE_SWITCH_USE; for (e = N_ENTITIES - 1; e >= 0; e--) { int no_mode = num_modes[e]; rtx insn; int mode; if (!OPTIMIZE_MODE_SWITCHING (e)) continue; for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) { if (!INSN_P (insn)) continue; mode = MODE_NEEDED (e, insn); if (mode == no_mode) continue; if (target_insert_mode_switch_use) { target_insert_mode_switch_use (insn, e, mode); df_insn_rescan (insn); } } } return 0; } struct rtl_opt_pass pass_mode_switch_use = { { RTL_PASS, "mode_switch_use", /* name */ NULL, /* gate */ insert_uses, /* execute */ NULL, /* sub */ NULL, /* next */ 0, /* static_pass_number */ TV_NONE, /* tv_id */ 0, /* properties_required */ 0, /* properties_provided */ 0, /* properties_destroyed */ 0, /* todo_flags_start */ 0, /* todo_flags_finish */ } };
Go to most recent revision | Compare with Previous | Blame | View Log