;; Predicate definitions for Visium. ;; Copyright (C) 2005-2021 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/.

;; Return true if OP is the constant 0. (define_predicate “const0_operand” (and (match_code “const_int,const_double”) (match_test “op == CONST0_RTX (mode)”)))

;; Return true if OP is a constant in the range 1 .. 31. (define_predicate “const_shift_operand” (and (match_code “const_int”) (match_test “IN_RANGE (INTVAL (op), 1, 31)”)))

;; Return true if OP is either a register or the constant 0. (define_predicate “reg_or_0_operand” (ior (match_operand 0 “register_operand”) (match_operand 0 “const0_operand”)))

;; Return true if OP is either a register or a constant in the range 1 .. 31. (define_predicate “reg_or_shift_operand” (ior (match_operand 0 “register_operand”) (match_operand 0 “const_shift_operand”)))

;; Return true if OP is either a register or the constant 32. (define_predicate “reg_or_32_operand” (ior (match_operand 0 “register_operand”) (and (match_code “const_int”) (match_test “INTVAL (op) == 32”))))

;; Return true if OP is a general register. (define_predicate “gpc_reg_operand” (match_operand 0 “register_operand”) { if (GET_CODE (op) == SUBREG) { op = SUBREG_REG (op); if (GET_CODE (op) != REG) return 1; }

unsigned int regno = REGNO (op); return (regno >= FIRST_PSEUDO_REGISTER || TEST_HARD_REG_BIT (reg_class_contents[GENERAL_REGS], regno)); })

;; Return true if OP is the MDB register. (define_predicate “mdb_reg_operand” (match_operand 0 “register_operand”) { unsigned int regno = reg_or_subreg_regno (op); return (regno == MDB_REGNUM); })

;; Return true if OP is the MDC register. (define_predicate “mdc_reg_operand” (match_operand 0 “register_operand”) { unsigned int regno = reg_or_subreg_regno (op); return (regno == MDC_REGNUM); })

;; Return true if OP is an rvalue which is not an EAM register. (define_predicate “non_eam_src_operand” (match_operand 0 “general_operand”) { unsigned int regno = reg_or_subreg_regno (op); return (regno != MDB_REGNUM && regno != MDC_REGNUM); })

;; Return true if OP is an lvalue which is not an EAM register. (define_predicate “non_eam_dst_operand” (match_operand 0 “nonimmediate_operand”) { unsigned int regno = reg_or_subreg_regno (op); return (regno != MDB_REGNUM && regno != MDC_REGNUM); })

;; Return true if OP is a floating-point register. (define_predicate “fp_reg_operand” (match_code “reg”) { unsigned int regno = REGNO (op); return (regno >= FIRST_PSEUDO_REGISTER || FP_REGISTER_P (regno)); })

;; Return true if OP is a floating-point register or the constant 0. (define_predicate “fp_reg_or_0_operand” (ior (match_operand 0 “fp_reg_operand”) (match_operand 0 “const0_operand”)))

;; Return true if OP can be used as the second operand in a 32-bit or 64-bit ;; add or subtract instruction. Note that adding a negative constant may be ;; transformed into subtracting a positive constant, and vice versa. (define_predicate “add_operand” (ior (match_operand 0 “gpc_reg_operand”) (and (match_code “const_int”) (match_test (“INTVAL (op) >= -65535 && INTVAL (op) <= 65535”)))))

;; Return true if OP can be used as the second operand in a 32-bit or 64-bit ;; add or subtract instruction directly, i.e. without the reverse trick. (define_predicate “real_add_operand” (ior (match_operand 0 “gpc_reg_operand”) (and (match_code “const_int”) (match_test (“INTVAL (op) >= 0 && INTVAL (op) <= 65535”)))))

;; Return true if OP is (or could be) outside the range 0 .. 65535, which is ;; the range of the immediate operands, but accept -1 for NOT. (define_predicate “large_immediate_operand” (ior (match_code “const,label_ref,symbol_ref”) (and (match_code “const_int”) (match_test (“INTVAL (op) < -1 || INTVAL (op) > 65535”)))))

;; Return true if OP is an equality comparison operator. (define_predicate “visium_equality_comparison_operator” (match_code “eq,ne”))

;; Return true if OP is a valid comparison operator for CCNZmode. (define_predicate “visium_nz_comparison_operator” (match_code “eq,ne,lt,ge”))

;; Return true if OP is a valid comparison operator for CCCmode. (define_predicate “visium_c_comparison_operator” (match_code “eq,ne,ltu,geu”))

;; Return true if OP is a valid comparison operator for CCVmode. (define_predicate “visium_v_comparison_operator” (match_code “eq,ne”))

;; Return true if OP is a valid FP comparison operator. (define_predicate “visium_fp_comparison_operator” (match_code “eq,ne,ordered,unordered,unlt,unle,ungt,unge,lt,le,gt,ge”))

;; Return true if OP is a valid comparison operator for a branch. This allows ;; the use of MATCH_OPERATOR to recognize all the branch insns. (define_predicate “visium_branch_operator” (match_operand 0 “comparison_operator”) { switch (GET_MODE (XEXP (op, 0))) { case E_CCmode: return ordered_comparison_operator (op, mode); case E_CCNZmode: return visium_nz_comparison_operator (op, mode); case E_CCCmode: return visium_c_comparison_operator (op, mode); case E_CCVmode: return visium_v_comparison_operator (op, mode); case E_CCFPmode: case E_CCFPEmode: return visium_fp_comparison_operator (op, mode); default: return false; } })

;; Return true if OP is a valid comparison operator for an integer cstore. (define_predicate “visium_int_cstore_operator” (match_code “eq,ne,ltu,gtu,leu,geu”))

;; Return true if OP is a valid comparison operator for an FP cstore. (define_predicate “visium_fp_cstore_operator” (match_code “lt,gt,unge,unle”))