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comparison gcc/config/c6x/c6x.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
comparison
equal deleted inserted replaced
111:04ced10e8804 131:84e7813d76e9
1 /* Target Code for TI C6X 1 /* Target Code for TI C6X
2 Copyright (C) 2010-2017 Free Software Foundation, Inc. 2 Copyright (C) 2010-2018 Free Software Foundation, Inc.
3 Contributed by Andrew Jenner <andrew@codesourcery.com> 3 Contributed by Andrew Jenner <andrew@codesourcery.com>
4 Contributed by Bernd Schmidt <bernds@codesourcery.com> 4 Contributed by Bernd Schmidt <bernds@codesourcery.com>
5 5
6 This file is part of GCC. 6 This file is part of GCC.
7 7
16 License for more details. 16 License for more details.
17 17
18 You should have received a copy of the GNU General Public License 18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see 19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */ 20 <http://www.gnu.org/licenses/>. */
21
22 #define IN_TARGET_CODE 1
21 23
22 #include "config.h" 24 #include "config.h"
23 #include "system.h" 25 #include "system.h"
24 #include "coretypes.h" 26 #include "coretypes.h"
25 #include "backend.h" 27 #include "backend.h"
4633 4635
4634 static void 4636 static void
4635 c6x_gen_bundles (void) 4637 c6x_gen_bundles (void)
4636 { 4638 {
4637 basic_block bb; 4639 basic_block bb;
4638 rtx_insn *insn, *next, *last_call;
4639 4640
4640 FOR_EACH_BB_FN (bb, cfun) 4641 FOR_EACH_BB_FN (bb, cfun)
4641 { 4642 {
4642 rtx_insn *insn, *next; 4643 rtx_insn *insn, *next;
4643 /* The machine is eight insns wide. We can have up to six shadow 4644 /* The machine is eight insns wide. We can have up to six shadow
4700 } 4701 }
4701 if (at_end) 4702 if (at_end)
4702 break; 4703 break;
4703 } 4704 }
4704 } 4705 }
4705 /* Bundling, and emitting nops, can separate
4706 NOTE_INSN_CALL_ARG_LOCATION from the corresponding calls. Fix
4707 that up here. */
4708 last_call = NULL;
4709 for (insn = get_insns (); insn; insn = next)
4710 {
4711 next = NEXT_INSN (insn);
4712 if (CALL_P (insn)
4713 || (INSN_P (insn) && GET_CODE (PATTERN (insn)) == SEQUENCE
4714 && CALL_P (XVECEXP (PATTERN (insn), 0, 0))))
4715 last_call = insn;
4716 if (!NOTE_P (insn) || NOTE_KIND (insn) != NOTE_INSN_CALL_ARG_LOCATION)
4717 continue;
4718 if (NEXT_INSN (last_call) == insn)
4719 continue;
4720 SET_NEXT_INSN (PREV_INSN (insn)) = NEXT_INSN (insn);
4721 SET_PREV_INSN (NEXT_INSN (insn)) = PREV_INSN (insn);
4722 SET_PREV_INSN (insn) = last_call;
4723 SET_NEXT_INSN (insn) = NEXT_INSN (last_call);
4724 SET_PREV_INSN (NEXT_INSN (insn)) = insn;
4725 SET_NEXT_INSN (PREV_INSN (insn)) = insn;
4726 last_call = insn;
4727 }
4728 } 4706 }
4729 4707
4730 /* Emit a NOP instruction for CYCLES cycles after insn AFTER. Return it. */ 4708 /* Emit a NOP instruction for CYCLES cycles after insn AFTER. Return it. */
4731 4709
4732 static rtx_insn * 4710 static rtx_insn *
4855 otherwise the caller will do it later. 4833 otherwise the caller will do it later.
4856 This function is called after final insn scheduling, but before creating 4834 This function is called after final insn scheduling, but before creating
4857 the SEQUENCEs that represent execute packets. */ 4835 the SEQUENCEs that represent execute packets. */
4858 4836
4859 static void 4837 static void
4860 reorg_split_calls (rtx_insn **call_labels) 4838 reorg_split_calls (rtx_code_label **call_labels)
4861 { 4839 {
4862 unsigned int reservation_mask = 0; 4840 unsigned int reservation_mask = 0;
4863 rtx_insn *insn = get_insns (); 4841 rtx_insn *insn = get_insns ();
4864 gcc_assert (NOTE_P (insn)); 4842 gcc_assert (NOTE_P (insn));
4865 insn = next_real_insn (insn); 4843 insn = next_real_insn (insn);
5029 insns as required for correctness. CALL_LABELS is the array that 5007 insns as required for correctness. CALL_LABELS is the array that
5030 holds the return labels for call insns; we emit these here if 5008 holds the return labels for call insns; we emit these here if
5031 scheduling was run earlier. */ 5009 scheduling was run earlier. */
5032 5010
5033 static void 5011 static void
5034 reorg_emit_nops (rtx_insn **call_labels) 5012 reorg_emit_nops (rtx_code_label **call_labels)
5035 { 5013 {
5036 bool first; 5014 bool first;
5037 rtx last_call; 5015 rtx last_call;
5038 rtx_insn *prev; 5016 rtx_insn *prev;
5039 int prev_clock, earliest_bb_end; 5017 int prev_clock, earliest_bb_end;
5967 5945
5968 free_delay_pairs (); 5946 free_delay_pairs ();
5969 } 5947 }
5970 sched_no_dce = false; 5948 sched_no_dce = false;
5971 5949
5972 rtx_insn **call_labels = XCNEWVEC (rtx_insn *, get_max_uid () + 1); 5950 rtx_code_label **call_labels = XCNEWVEC (rtx_code_label *, get_max_uid () + 1);
5973 5951
5974 reorg_split_calls (call_labels); 5952 reorg_split_calls (call_labels);
5975 5953
5976 if (c6x_flag_schedule_insns2) 5954 if (c6x_flag_schedule_insns2)
5977 { 5955 {