tcg/s390x/tcg-target-con-str.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Define S390 target-specific operand constraints.
   4  * Copyright (c) 2021 Linaro
   5  */
   6
   7 /*
   8  * Define constraint letters for register sets:
   9  * REGS(letter, register_mask)
  10  */
  11 REGS('r', ALL_GENERAL_REGS)
  12 REGS('L', ALL_GENERAL_REGS & ~SOFTMMU_RESERVE_REGS)
  13 REGS('v', ALL_VECTOR_REGS)
  14 /*
  15  * A (single) even/odd pair for division.
  16  * TODO: Add something to the register allocator to allow
  17  * this kind of regno+1 pairing to be done more generally.
  18  */
  19 REGS('a', 1u << TCG_REG_R2)
  20 REGS('b', 1u << TCG_REG_R3)
  21
  22 /*
  23  * Define constraint letters for constants:
  24  * CONST(letter, TCG_CT_CONST_* bit set)
  25  */
  26 CONST('A', TCG_CT_CONST_S33)
  27 CONST('I', TCG_CT_CONST_S16)
  28 CONST('J', TCG_CT_CONST_S32)
  29 CONST('Z', TCG_CT_CONST_ZERO)