| //===-- RISCVCallingConv.td - Calling Conventions RISCV ----*- tablegen -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This describes the calling conventions for the RISCV architecture. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // The RISC-V calling convention is handled with custom code in |
| // RISCVISelLowering.cpp (CC_RISCV). |
| |
| def CSR : CalleeSavedRegs<(add X1, X3, X4, X8, X9, (sequence "X%u", 18, 27))>; |
| |
| // Needed for implementation of RISCVRegisterInfo::getNoPreservedMask() |
| def CSR_NoRegs : CalleeSavedRegs<(add)>; |
