diff options
Diffstat (limited to 'tcg/s390/tcg-target-con-str.h')
| -rw-r--r-- | tcg/s390/tcg-target-con-str.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tcg/s390/tcg-target-con-str.h b/tcg/s390/tcg-target-con-str.h new file mode 100644 index 0000000000..892d8f8c06 --- /dev/null +++ b/tcg/s390/tcg-target-con-str.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Define S390 target-specific operand constraints. + * Copyright (c) 2021 Linaro + */ + +/* + * Define constraint letters for register sets: + * REGS(letter, register_mask) + */ +REGS('r', ALL_GENERAL_REGS) +REGS('L', ALL_GENERAL_REGS & ~SOFTMMU_RESERVE_REGS) +/* + * A (single) even/odd pair for division. + * TODO: Add something to the register allocator to allow + * this kind of regno+1 pairing to be done more generally. + */ +REGS('a', 1u << TCG_REG_R2) +REGS('b', 1u << TCG_REG_R3) + +/* + * Define constraint letters for constants: + * CONST(letter, TCG_CT_CONST_* bit set) + */ +CONST('A', TCG_CT_CONST_S33) +CONST('I', TCG_CT_CONST_S16) +CONST('J', TCG_CT_CONST_S32) +CONST('Z', TCG_CT_CONST_ZERO) |