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;; Constraint definitions for GCN.
;; Copyright (C) 2016-2020 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/>.
(define_constraint "I"
"Inline integer constant"
(and (match_code "const_int")
(match_test "ival >= -16 && ival <= 64")))
(define_constraint "J"
"Signed integer 16-bit inline constant"
(and (match_code "const_int")
(match_test "((unsigned HOST_WIDE_INT) ival + 0x8000) < 0x10000")))
(define_constraint "Kf"
"Immeditate constant -1"
(and (match_code "const_int")
(match_test "ival == -1")))
(define_constraint "L"
"Unsigned integer 15-bit constant"
(and (match_code "const_int")
(match_test "((unsigned HOST_WIDE_INT) ival) < 0x8000")))
(define_constraint "A"
"Inline immediate parameter"
(and (match_code "const_int,const_double,const_vector")
(match_test "gcn_inline_constant_p (op)")))
(define_constraint "B"
"Immediate 32-bit parameter"
(and (match_code "const_int,const_double,const_vector")
(match_test "gcn_constant_p (op)")))
(define_constraint "C"
"Immediate 32-bit parameter zero-extended to 64-bits"
(and (match_code "const_int,const_double,const_vector")
(match_test "gcn_constant64_p (op)")))
(define_constraint "DA"
"Immediate 64-bit parameter, low and high part match 'A'"
(and (match_code "const_int,const_double,const_vector")
(match_test "gcn_inline_constant64_p (op, 0)")))
(define_constraint "Db"
"Immediate 64-bit parameter, low part matches 'B', high part matches 'A'"
(and (match_code "const_int,const_double,const_vector")
(match_test "gcn_inline_constant64_p (op, 1)")))
(define_constraint "DB"
"Immediate 64-bit parameter, low and high part match 'B'"
(match_code "const_int,const_double,const_vector"))
(define_constraint "U"
"unspecified value"
(match_code "unspec"))
(define_constraint "Y"
"Symbol or label for relative calls"
(match_code "symbol_ref,label_ref"))
(define_register_constraint "v" "VGPR_REGS"
"VGPR registers")
(define_register_constraint "Sg" "SGPR_REGS"
"SGPR registers")
(define_register_constraint "SD" "SGPR_DST_REGS"
"registers useable as a destination of scalar operation")
(define_register_constraint "SS" "SGPR_SRC_REGS"
"registers useable as a source of scalar operation")
(define_register_constraint "Sm" "SGPR_MEM_SRC_REGS"
"registers useable as a source of scalar memory operation")
(define_register_constraint "Sv" "SGPR_VOP_SRC_REGS"
"registers useable as a source of VOP3A instruction")
(define_register_constraint "ca" "ALL_CONDITIONAL_REGS"
"SCC VCCZ or EXECZ")
(define_register_constraint "cs" "SCC_CONDITIONAL_REG"
"SCC")
(define_register_constraint "cV" "VCC_CONDITIONAL_REG"
"VCC")
(define_register_constraint "e" "EXEC_MASK_REG"
"EXEC")
(define_special_memory_constraint "RB"
"Buffer memory address to scratch memory."
(and (match_code "mem")
(match_test "AS_SCRATCH_P (MEM_ADDR_SPACE (op))")))
(define_special_memory_constraint "RF"
"Buffer memory address to flat memory."
(and (match_code "mem")
(match_test "AS_FLAT_P (MEM_ADDR_SPACE (op))
&& gcn_flat_address_p (XEXP (op, 0), mode)")))
(define_special_memory_constraint "RS"
"Buffer memory address to scalar flat memory."
(and (match_code "mem")
(match_test "AS_SCALAR_FLAT_P (MEM_ADDR_SPACE (op))
&& gcn_scalar_flat_mem_p (op)")))
(define_special_memory_constraint "RL"
"Buffer memory address to LDS memory."
(and (match_code "mem")
(match_test "AS_LDS_P (MEM_ADDR_SPACE (op))")))
(define_special_memory_constraint "RG"
"Buffer memory address to GDS memory."
(and (match_code "mem")
(match_test "AS_GDS_P (MEM_ADDR_SPACE (op))")))
(define_special_memory_constraint "RD"
"Buffer memory address to GDS or LDS memory."
(and (match_code "mem")
(ior (match_test "AS_GDS_P (MEM_ADDR_SPACE (op))")
(match_test "AS_LDS_P (MEM_ADDR_SPACE (op))"))))
(define_special_memory_constraint "RM"
"Memory address to global (main) memory."
(and (match_code "mem")
(match_test "AS_GLOBAL_P (MEM_ADDR_SPACE (op))
&& gcn_global_address_p (XEXP (op, 0))")))
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