tcg/s390/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 /*
  14  * A (single) even/odd pair for division.
  15  * TODO: Add something to the register allocator to allow
  16  * this kind of regno+1 pairing to be done more generally.
  17  */
  18 REGS('a', 1u << TCG_REG_R2)
  19 REGS('b', 1u << TCG_REG_R3)
  20
  21 /*
  22  * Define constraint letters for constants:
  23  * CONST(letter, TCG_CT_CONST_* bit set)
  24  */
  25 CONST('A', TCG_CT_CONST_S33)
  26 CONST('I', TCG_CT_CONST_S16)
  27 CONST('J', TCG_CT_CONST_S32)
  28 CONST('Z', TCG_CT_CONST_ZERO)