180 lines
6.9 KiB
Markdown
180 lines
6.9 KiB
Markdown
|
;; Constraint definitions for SPU
|
|||
|
|
;; Copyright (C) 2006, 2007 Free Software Foundation, Inc.
|
|||
|
|
;;
|
|||
|
|
;; This file 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 of the License, or (at your option)
|
|||
|
|
;; any later version.
|
|||
|
|
|
|||
|
|
;; This file 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/>.
|
|||
|
|
|
|||
|
|
|
|||
|
|
;; ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
|
|||
|
|
;; GCC: ffffiiiiiiii x x x x xxxx xx
|
|||
|
|
;; SPU: xxxx xxx xxxx xxxx x xxx xx x xxx xx
|
|||
|
|
;; FREE: ffff i a a a a a aa aaa
|
|||
|
|
;; x - used
|
|||
|
|
;; a - available
|
|||
|
|
;; i - available for integer immediates
|
|||
|
|
;; f - available for floating point immediates
|
|||
|
|
|
|||
|
|
;; For most immediate constraints we have 3 variations to deal with the
|
|||
|
|
;; fact const_int has no mode. One variation treats const_int as 32 bit,
|
|||
|
|
;; another treats it as 64 bit, and the third sign extends it to 128 bit.
|
|||
|
|
|
|||
|
|
(define_constraint "A"
|
|||
|
|
"An immediate which can be loaded with the il/ila/ilh/ilhu instructions. const_int is treated as a 32-bit value."
|
|||
|
|
(ior (and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "immediate_load_p (op, SImode)"))
|
|||
|
|
(match_code "symbol_ref,label_ref,high,const")))
|
|||
|
|
|
|||
|
|
(define_constraint "B"
|
|||
|
|
"An immediate for arithmetic instructions (e.g., ai, ceqi). const_int is treated as a 32-bit value."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "arith_immediate_p (op, SImode, -0x200, 0x1ff)")))
|
|||
|
|
|
|||
|
|
(define_constraint "C"
|
|||
|
|
"An immediate for and/xor/or instructions. const_int is treated as a 32-bit value."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "logical_immediate_p (op, SImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "D"
|
|||
|
|
"An immediate for iohl instruction. const_int is treated as a 32-bit value."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "iohl_immediate_p (op, SImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "U"
|
|||
|
|
"An immediate which can be loaded with the il/ila/ilh/ilhu instructions. const_int is sign extended to 128 bit."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "immediate_load_p (op, TImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "W"
|
|||
|
|
"An immediate for shift and rotate instructions. const_int is treated as a 32-bit value."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "arith_immediate_p (op, SImode, -0x80000000ll, 0x7fffffffll)")))
|
|||
|
|
|
|||
|
|
(define_constraint "Y"
|
|||
|
|
"An immediate for and/xor/or instructions. const_int is sign extended as a 128 bit."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "logical_immediate_p (op, TImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "Z"
|
|||
|
|
"An immediate for iohl instruction. const_int is sign extended to 128 bit."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "iohl_immediate_p (op, TImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "a"
|
|||
|
|
"An immediate which can be loaded with the il/ila/ilh/ilhu instructions. const_int is treated as a 64-bit value."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "immediate_load_p (op, DImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "c"
|
|||
|
|
"An immediate for and/xor/or instructions. const_int is treated as a 64-bit value."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "logical_immediate_p (op, DImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "d"
|
|||
|
|
"An immediate for iohl instruction. const_int is treated as a 64-bit value."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "iohl_immediate_p (op, DImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "f"
|
|||
|
|
"An immediate which can be loaded with fsmbi."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "fsmbi_const_p (op)")))
|
|||
|
|
|
|||
|
|
(define_constraint "j"
|
|||
|
|
"An immediate which can be loaded with one of the cbd/chd/cwd/cdd instructions. const_int is treated as a 32-bit value."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "cpat_const_p (op, SImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "k"
|
|||
|
|
"An immediate which can be loaded with one of the cbd/chd/cwd/cdd instructions. const_int is treated as a 64-bit value."
|
|||
|
|
(and (match_code "const_int,const_double,const_vector")
|
|||
|
|
(match_test "cpat_const_p (op, DImode)")))
|
|||
|
|
|
|||
|
|
(define_constraint "l"
|
|||
|
|
"An immediate which can be loaded with one of the cbd/chd/cwd/cdd instructions."
|
|||
|
|
(and (match_code "const_double,const_vector")
|
|||
|
|
(match_test "cpat_const_p (op, TImode)")))
|
|||
|
|
|
|||
|
|
|
|||
|
|
;; Integer constraints
|
|||
|
|
|
|||
|
|
(define_constraint "I"
|
|||
|
|
"A constant in the range [-64, 63] for shift/rotate instructions."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "ival >= -0x40 && ival <= 0x3f")))
|
|||
|
|
|
|||
|
|
(define_constraint "J"
|
|||
|
|
"An unsigned 7-bit constant for conversion/nop/channel instructions."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "ival >= 0 && ival <= 0x7f")))
|
|||
|
|
|
|||
|
|
(define_constraint "K"
|
|||
|
|
"A signed 10-bit constant for most arithmetic instructions."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "ival >= -0x200 && ival <= 0x1ff")))
|
|||
|
|
|
|||
|
|
(define_constraint "M"
|
|||
|
|
"A signed 16-bit immediate for @code{stop}."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "ival >= -0x8000ll && ival <= 0x7fffll")))
|
|||
|
|
|
|||
|
|
(define_constraint "N"
|
|||
|
|
"An unsigned 16-bit constant for @code{iohl} and @code{fsmbi}."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "ival >= 0 && ival <= 0xffff")))
|
|||
|
|
|
|||
|
|
(define_constraint "O"
|
|||
|
|
"An unsigned 7-bit constant whose 3 least significant bits are 0."
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "(ival & 7) == 0")))
|
|||
|
|
|
|||
|
|
(define_constraint "P"
|
|||
|
|
"An unsigned 3-bit constant for 16-byte rotates and shifts"
|
|||
|
|
(and (match_code "const_int")
|
|||
|
|
(match_test "ival >= 0 && ival <= 7")))
|
|||
|
|
|
|||
|
|
|
|||
|
|
;; Memory constraints
|
|||
|
|
|
|||
|
|
(define_memory_constraint "R"
|
|||
|
|
"Call operand, reg, for indirect calls"
|
|||
|
|
(and (match_code "mem")
|
|||
|
|
(match_test "GET_CODE(XEXP(op, 0)) == REG")))
|
|||
|
|
|
|||
|
|
(define_memory_constraint "S"
|
|||
|
|
"Call operand, symbol, for relative calls."
|
|||
|
|
(and (match_code "mem")
|
|||
|
|
(match_test "!TARGET_LARGE_MEM
|
|||
|
|
&& ((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
|
|||
|
|
|| GET_CODE (XEXP (op, 0)) == LABEL_REF))")))
|
|||
|
|
|
|||
|
|
(define_memory_constraint "T"
|
|||
|
|
"Call operand, const_int, for absolute calls."
|
|||
|
|
(and (match_code "mem")
|
|||
|
|
(match_test "GET_CODE (XEXP (op, 0)) == CONST_INT
|
|||
|
|
&& INTVAL (XEXP (op, 0)) >= 0
|
|||
|
|
&& INTVAL (XEXP (op, 0)) <= 0x3ffff")))
|
|||
|
|
|
|||
|
|
|
|||
|
|
;; Floating-point constant constraints.
|
|||
|
|
|
|||
|
|
(define_constraint "v"
|
|||
|
|
"Floating point power of 2 with exponent in [0..127]"
|
|||
|
|
(and (match_code "const_double,const_vector")
|
|||
|
|
(match_test "exp2_immediate_p (op, VOIDmode, 0, 127)")))
|
|||
|
|
|
|||
|
|
(define_constraint "w"
|
|||
|
|
"Floating point power of 2 with exponent in [-126..0]"
|
|||
|
|
(and (match_code "const_double,const_vector")
|
|||
|
|
(match_test "exp2_immediate_p (op, VOIDmode, -126, 0)")))
|