llvm/lib/Target/SystemZ/SystemZCallingConv.cpp

   1 //===-- SystemZCallingConv.cpp - Calling conventions for SystemZ ----------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "SystemZCallingConv.h"
  10 #include "SystemZRegisterInfo.h"
  11
  12 using namespace llvm;
  13
  14 const MCPhysReg SystemZ::ELFArgGPRs[SystemZ::ELFNumArgGPRs] = {
  15   SystemZ::R2D, SystemZ::R3D, SystemZ::R4D, SystemZ::R5D, SystemZ::R6D
  16 };
  17
  18 const MCPhysReg SystemZ::ELFArgFPRs[SystemZ::ELFNumArgFPRs] = {
  19   SystemZ::F0D, SystemZ::F2D, SystemZ::F4D, SystemZ::F6D
  20 };
  21
  22 // The XPLINK64 ABI-defined param passing general purpose registers
  23 const MCPhysReg SystemZ::XPLINK64ArgGPRs[SystemZ::XPLINK64NumArgGPRs] = {
  24     SystemZ::R1D, SystemZ::R2D, SystemZ::R3D
  25 };
  26
  27 // The XPLINK64 ABI-defined param passing floating point registers
  28 const MCPhysReg SystemZ::XPLINK64ArgFPRs[SystemZ::XPLINK64NumArgFPRs] = {
  29     SystemZ::F0D, SystemZ::F2D, SystemZ::F4D, SystemZ::F6D
  30 };