diff gcc/optabs-query.h @ 111:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 84e7813d76e9
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/optabs-query.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,184 @@
+/* IR-agnostic target query functions relating to optabs
+   Copyright (C) 2001-2017 Free Software Foundation, 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/>.  */
+
+#ifndef GCC_OPTABS_QUERY_H
+#define GCC_OPTABS_QUERY_H
+
+#include "insn-opinit.h"
+#include "target.h"
+
+/* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing
+   if the target does not have such an insn.  */
+
+inline enum insn_code
+optab_handler (optab op, machine_mode mode)
+{
+  unsigned scode = (op << 16) | mode;
+  gcc_assert (op > LAST_CONV_OPTAB);
+  return raw_optab_handler (scode);
+}
+
+/* Return the insn used to perform conversion OP from mode FROM_MODE
+   to mode TO_MODE; return CODE_FOR_nothing if the target does not have
+   such an insn.  */
+
+inline enum insn_code
+convert_optab_handler (convert_optab op, machine_mode to_mode,
+		       machine_mode from_mode)
+{
+  unsigned scode = (op << 16) | (from_mode << 8) | to_mode;
+  gcc_assert (op > unknown_optab && op <= LAST_CONV_OPTAB);
+  return raw_optab_handler (scode);
+}
+
+enum insn_code convert_optab_handler (convert_optab, machine_mode,
+				      machine_mode, optimization_type);
+
+/* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing
+   if the target does not have such an insn.  */
+
+inline enum insn_code
+direct_optab_handler (direct_optab op, machine_mode mode)
+{
+  return optab_handler (op, mode);
+}
+
+enum insn_code direct_optab_handler (convert_optab, machine_mode,
+				     optimization_type);
+
+/* Return true if UNOPTAB is for a trapping-on-overflow operation.  */
+
+inline bool
+trapv_unoptab_p (optab unoptab)
+{
+  return (unoptab == negv_optab
+	  || unoptab == absv_optab);
+}
+
+/* Return true if BINOPTAB is for a trapping-on-overflow operation.  */
+
+inline bool
+trapv_binoptab_p (optab binoptab)
+{
+  return (binoptab == addv_optab
+	  || binoptab == subv_optab
+	  || binoptab == smulv_optab);
+}
+
+/* Return insn code for a comparison operator with VMODE
+   resultin MASK_MODE, unsigned if UNS is true.  */
+
+static inline enum insn_code
+get_vec_cmp_icode (machine_mode vmode, machine_mode mask_mode, bool uns)
+{
+  optab tab = uns ? vec_cmpu_optab : vec_cmp_optab;
+  return convert_optab_handler (tab, vmode, mask_mode);
+}
+
+/* Return insn code for a comparison operator with VMODE
+   resultin MASK_MODE (only for EQ/NE).  */
+
+static inline enum insn_code
+get_vec_cmp_eq_icode (machine_mode vmode, machine_mode mask_mode)
+{
+  return convert_optab_handler (vec_cmpeq_optab, vmode, mask_mode);
+}
+
+/* Return insn code for a conditional operator with a comparison in
+   mode CMODE, unsigned if UNS is true, resulting in a value of mode VMODE.  */
+
+inline enum insn_code
+get_vcond_icode (machine_mode vmode, machine_mode cmode, bool uns)
+{
+  enum insn_code icode = CODE_FOR_nothing;
+  if (uns)
+    icode = convert_optab_handler (vcondu_optab, vmode, cmode);
+  else
+    icode = convert_optab_handler (vcond_optab, vmode, cmode);
+  return icode;
+}
+
+/* Return insn code for a conditional operator with a mask mode
+   MMODE resulting in a value of mode VMODE.  */
+
+static inline enum insn_code
+get_vcond_mask_icode (machine_mode vmode, machine_mode mmode)
+{
+  return convert_optab_handler (vcond_mask_optab, vmode, mmode);
+}
+
+/* Return insn code for a conditional operator with a comparison in
+   mode CMODE (only EQ/NE), resulting in a value of mode VMODE.  */
+
+static inline enum insn_code
+get_vcond_eq_icode (machine_mode vmode, machine_mode cmode)
+{
+  return convert_optab_handler (vcondeq_optab, vmode, cmode);
+}
+
+/* Enumerates the possible extraction_insn operations.  */
+enum extraction_pattern { EP_insv, EP_extv, EP_extzv };
+
+/* Describes an instruction that inserts or extracts a bitfield.  */
+struct extraction_insn
+{
+  /* The code of the instruction.  */
+  enum insn_code icode;
+
+  /* The mode that the structure operand should have.  This is byte_mode
+     when using the legacy insv, extv and extzv patterns to access memory.
+     If no mode is given, the structure is a BLKmode memory.  */
+  opt_scalar_int_mode struct_mode;
+
+  /* The mode of the field to be inserted or extracted, and by extension
+     the mode of the insertion or extraction itself.  */
+  scalar_int_mode field_mode;
+
+  /* The mode of the field's bit position.  This is only important
+     when the position is variable rather than constant.  */
+  scalar_int_mode pos_mode;
+};
+
+bool get_best_reg_extraction_insn (extraction_insn *,
+				   enum extraction_pattern,
+				   unsigned HOST_WIDE_INT, machine_mode);
+bool get_best_mem_extraction_insn (extraction_insn *,
+				   enum extraction_pattern,
+				   HOST_WIDE_INT, HOST_WIDE_INT, machine_mode);
+
+enum insn_code can_extend_p (machine_mode, machine_mode, int);
+enum insn_code can_float_p (machine_mode, machine_mode, int);
+enum insn_code can_fix_p (machine_mode, machine_mode, int, bool *);
+bool can_conditionally_move_p (machine_mode mode);
+bool can_vec_perm_p (machine_mode, bool, vec_perm_indices *);
+enum insn_code widening_optab_handler (optab, machine_mode, machine_mode);
+/* Find a widening optab even if it doesn't widen as much as we want.  */
+#define find_widening_optab_handler(A,B,C,D) \
+  find_widening_optab_handler_and_mode (A, B, C, D, NULL)
+enum insn_code find_widening_optab_handler_and_mode (optab, machine_mode,
+						     machine_mode, int,
+						     machine_mode *);
+int can_mult_highpart_p (machine_mode, bool);
+bool can_vec_mask_load_store_p (machine_mode, machine_mode, bool);
+bool can_compare_and_swap_p (machine_mode, bool);
+bool can_atomic_exchange_p (machine_mode, bool);
+bool can_atomic_load_p (machine_mode);
+bool lshift_cheap_p (bool);
+
+#endif