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/* Internal functions.
Copyright (C) 2011 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/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "internal-fn.h"
#include "tree.h"
#include "expr.h"
#include "optabs.h"
#include "gimple.h"
/* The names of each internal function, indexed by function number. */
const char *const internal_fn_name_array[] = {
#define DEF_INTERNAL_FN(CODE, FLAGS) #CODE,
#include "internal-fn.def"
#undef DEF_INTERNAL_FN
"<invalid-fn>"
};
/* The ECF_* flags of each internal function, indexed by function number. */
const int internal_fn_flags_array[] = {
#define DEF_INTERNAL_FN(CODE, FLAGS) FLAGS,
#include "internal-fn.def"
#undef DEF_INTERNAL_FN
0
};
/* ARRAY_TYPE is an array of vector modes. Return the associated insn
for load-lanes-style optab OPTAB. The insn must exist. */
static enum insn_code
get_multi_vector_move (tree array_type, convert_optab optab)
{
enum insn_code icode;
enum machine_mode imode;
enum machine_mode vmode;
gcc_assert (TREE_CODE (array_type) == ARRAY_TYPE);
imode = TYPE_MODE (array_type);
vmode = TYPE_MODE (TREE_TYPE (array_type));
icode = convert_optab_handler (optab, imode, vmode);
gcc_assert (icode != CODE_FOR_nothing);
return icode;
}
/* Expand LOAD_LANES call STMT. */
static void
expand_LOAD_LANES (gimple stmt)
{
struct expand_operand ops[2];
tree type, lhs, rhs;
rtx target, mem;
lhs = gimple_call_lhs (stmt);
rhs = gimple_call_arg (stmt, 0);
type = TREE_TYPE (lhs);
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
mem = expand_normal (rhs);
gcc_assert (MEM_P (mem));
PUT_MODE (mem, TYPE_MODE (type));
create_output_operand (&ops[0], target, TYPE_MODE (type));
create_fixed_operand (&ops[1], mem);
expand_insn (get_multi_vector_move (type, vec_load_lanes_optab), 2, ops);
}
/* Expand STORE_LANES call STMT. */
static void
expand_STORE_LANES (gimple stmt)
{
struct expand_operand ops[2];
tree type, lhs, rhs;
rtx target, reg;
lhs = gimple_call_lhs (stmt);
rhs = gimple_call_arg (stmt, 0);
type = TREE_TYPE (rhs);
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
reg = expand_normal (rhs);
gcc_assert (MEM_P (target));
PUT_MODE (target, TYPE_MODE (type));
create_fixed_operand (&ops[0], target);
create_input_operand (&ops[1], reg, TYPE_MODE (type));
expand_insn (get_multi_vector_move (type, vec_store_lanes_optab), 2, ops);
}
/* Routines to expand each internal function, indexed by function number.
Each routine has the prototype:
expand_<NAME> (gimple stmt)
where STMT is the statement that performs the call. */
static void (*const internal_fn_expanders[]) (gimple) = {
#define DEF_INTERNAL_FN(CODE, FLAGS) expand_##CODE,
#include "internal-fn.def"
#undef DEF_INTERNAL_FN
0
};
/* Expand STMT, which is a call to internal function FN. */
void
expand_internal_call (gimple stmt)
{
internal_fn_expanders[(int) gimple_call_internal_fn (stmt)] (stmt);
}
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