1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 04:02:41 +01:00
llvm-mirror/lib/Target/SystemZ/SystemZCallingConv.cpp
Neumann Hon 5bf2202796 [SystemZ] [z/OS] Add XPLINK64 Calling Convention to SystemZ
This patch adds the XPLINK64 calling convention to the SystemZ
backend. It specifies and implements the argument passing and
return value conventions.

Reviewed By: uweigand

Differential Revision: https://reviews.llvm.org/D101010
2021-05-18 16:52:47 -04:00

31 lines
1.1 KiB
C++

//===-- SystemZCallingConv.cpp - Calling conventions for SystemZ ----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "SystemZCallingConv.h"
#include "SystemZRegisterInfo.h"
using namespace llvm;
const MCPhysReg SystemZ::ELFArgGPRs[SystemZ::ELFNumArgGPRs] = {
SystemZ::R2D, SystemZ::R3D, SystemZ::R4D, SystemZ::R5D, SystemZ::R6D
};
const MCPhysReg SystemZ::ELFArgFPRs[SystemZ::ELFNumArgFPRs] = {
SystemZ::F0D, SystemZ::F2D, SystemZ::F4D, SystemZ::F6D
};
// The XPLINK64 ABI-defined param passing general purpose registers
const MCPhysReg SystemZ::XPLINK64ArgGPRs[SystemZ::XPLINK64NumArgGPRs] = {
SystemZ::R1D, SystemZ::R2D, SystemZ::R3D
};
// The XPLINK64 ABI-defined param passing floating point registers
const MCPhysReg SystemZ::XPLINK64ArgFPRs[SystemZ::XPLINK64NumArgFPRs] = {
SystemZ::F0D, SystemZ::F2D, SystemZ::F4D, SystemZ::F6D
};