158 lines
5.0 KiB
Markdown
158 lines
5.0 KiB
Markdown
|
;; Predicate definitions for Xtensa.
|
||
|
;; Copyright (C) 2005 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 2, 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 COPYING. If not, write to
|
||
|
;; the Free Software Foundation, 51 Franklin Street, Fifth Floor,
|
||
|
;; Boston, MA 02110-1301, USA.
|
||
|
|
||
|
(define_predicate "add_operand"
|
||
|
(ior (and (match_code "const_int")
|
||
|
(match_test "xtensa_simm8 (INTVAL (op))
|
||
|
|| xtensa_simm8x256 (INTVAL (op))"))
|
||
|
(match_operand 0 "register_operand")))
|
||
|
|
||
|
(define_predicate "arith_operand"
|
||
|
(ior (and (match_code "const_int")
|
||
|
(match_test "xtensa_simm8 (INTVAL (op))"))
|
||
|
(match_operand 0 "register_operand")))
|
||
|
|
||
|
;; Non-immediate operand excluding the constant pool.
|
||
|
(define_predicate "nonimmed_operand"
|
||
|
(ior (and (match_operand 0 "memory_operand")
|
||
|
(match_test "!constantpool_address_p (XEXP (op, 0))"))
|
||
|
(match_operand 0 "register_operand")))
|
||
|
|
||
|
;; Memory operand excluding the constant pool.
|
||
|
(define_predicate "mem_operand"
|
||
|
(and (match_operand 0 "memory_operand")
|
||
|
(match_test "!constantpool_address_p (XEXP (op, 0))")))
|
||
|
|
||
|
(define_predicate "mask_operand"
|
||
|
(ior (and (match_code "const_int")
|
||
|
(match_test "xtensa_mask_immediate (INTVAL (op))"))
|
||
|
(match_operand 0 "register_operand")))
|
||
|
|
||
|
(define_predicate "extui_fldsz_operand"
|
||
|
(and (match_code "const_int")
|
||
|
(match_test "xtensa_mask_immediate ((1 << INTVAL (op)) - 1)")))
|
||
|
|
||
|
(define_predicate "sext_operand"
|
||
|
(if_then_else (match_test "TARGET_SEXT")
|
||
|
(match_operand 0 "nonimmed_operand")
|
||
|
(match_operand 0 "mem_operand")))
|
||
|
|
||
|
(define_predicate "sext_fldsz_operand"
|
||
|
(and (match_code "const_int")
|
||
|
(match_test "INTVAL (op) >= 8 && INTVAL (op) <= 23")))
|
||
|
|
||
|
(define_predicate "lsbitnum_operand"
|
||
|
(and (match_code "const_int")
|
||
|
(match_test "BITS_BIG_ENDIAN
|
||
|
? (INTVAL (op) == BITS_PER_WORD - 1)
|
||
|
: (INTVAL (op) == 0)")))
|
||
|
|
||
|
(define_predicate "branch_operand"
|
||
|
(ior (and (match_code "const_int")
|
||
|
(match_test "xtensa_b4const_or_zero (INTVAL (op))"))
|
||
|
(match_operand 0 "register_operand")))
|
||
|
|
||
|
(define_predicate "ubranch_operand"
|
||
|
(ior (and (match_code "const_int")
|
||
|
(match_test "xtensa_b4constu (INTVAL (op))"))
|
||
|
(match_operand 0 "register_operand")))
|
||
|
|
||
|
(define_predicate "call_insn_operand"
|
||
|
(match_code "const_int,const,symbol_ref,reg")
|
||
|
{
|
||
|
if ((GET_CODE (op) == REG)
|
||
|
&& (op != arg_pointer_rtx)
|
||
|
&& ((REGNO (op) < FRAME_POINTER_REGNUM)
|
||
|
|| (REGNO (op) > LAST_VIRTUAL_REGISTER)))
|
||
|
return true;
|
||
|
|
||
|
if (CONSTANT_ADDRESS_P (op))
|
||
|
{
|
||
|
/* Direct calls only allowed to static functions with PIC. */
|
||
|
if (flag_pic)
|
||
|
{
|
||
|
tree callee, callee_sec, caller_sec;
|
||
|
|
||
|
if (GET_CODE (op) != SYMBOL_REF
|
||
|
|| !SYMBOL_REF_LOCAL_P (op) || SYMBOL_REF_EXTERNAL_P (op))
|
||
|
return false;
|
||
|
|
||
|
/* Don't attempt a direct call if the callee is known to be in
|
||
|
a different section, since there's a good chance it will be
|
||
|
out of range. */
|
||
|
|
||
|
if (flag_function_sections
|
||
|
|| DECL_ONE_ONLY (current_function_decl))
|
||
|
return false;
|
||
|
caller_sec = DECL_SECTION_NAME (current_function_decl);
|
||
|
callee = SYMBOL_REF_DECL (op);
|
||
|
if (callee)
|
||
|
{
|
||
|
if (DECL_ONE_ONLY (callee))
|
||
|
return false;
|
||
|
callee_sec = DECL_SECTION_NAME (callee);
|
||
|
if (((caller_sec == NULL_TREE) ^ (callee_sec == NULL_TREE))
|
||
|
|| (caller_sec != NULL_TREE
|
||
|
&& strcmp (TREE_STRING_POINTER (caller_sec),
|
||
|
TREE_STRING_POINTER (callee_sec)) != 0))
|
||
|
return false;
|
||
|
}
|
||
|
else if (caller_sec != NULL_TREE)
|
||
|
return false;
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
})
|
||
|
|
||
|
(define_predicate "move_operand"
|
||
|
(ior
|
||
|
(ior (match_operand 0 "register_operand")
|
||
|
(match_operand 0 "memory_operand"))
|
||
|
(ior (and (match_code "const_int")
|
||
|
(match_test "GET_MODE_CLASS (mode) == MODE_INT
|
||
|
&& xtensa_simm12b (INTVAL (op))"))
|
||
|
(and (match_code "const_int,const_double,const,symbol_ref,label_ref")
|
||
|
(match_test "TARGET_CONST16 && CONSTANT_P (op)
|
||
|
&& GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))))
|
||
|
|
||
|
;; Accept the floating point constant 1 in the appropriate mode.
|
||
|
(define_predicate "const_float_1_operand"
|
||
|
(match_code "const_double")
|
||
|
{
|
||
|
REAL_VALUE_TYPE d;
|
||
|
REAL_VALUE_FROM_CONST_DOUBLE (d, op);
|
||
|
return REAL_VALUES_EQUAL (d, dconst1);
|
||
|
})
|
||
|
|
||
|
(define_predicate "fpmem_offset_operand"
|
||
|
(and (match_code "const_int")
|
||
|
(match_test "xtensa_mem_offset (INTVAL (op), SFmode)")))
|
||
|
|
||
|
(define_predicate "branch_operator"
|
||
|
(match_code "eq,ne,lt,ge"))
|
||
|
|
||
|
(define_predicate "ubranch_operator"
|
||
|
(match_code "ltu,geu"))
|
||
|
|
||
|
(define_predicate "boolean_operator"
|
||
|
(match_code "eq,ne"))
|